{"pageNumber":"101","pageRowStart":"2500","pageSize":"25","recordCount":184617,"records":[{"id":70263252,"text":"70263252 - 2025 - Geochemical processes related to mined, milled, or natural metal deposits in a rapidly changing global environment","interactions":[],"lastModifiedDate":"2025-03-11T15:00:46.273017","indexId":"70263252","displayToPublicDate":"2025-01-10T08:25:45","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1758,"text":"Geochemistry: Exploration, Environment, Analysis","active":true,"publicationSubtype":{"id":10}},"title":"Geochemical processes related to mined, milled, or natural metal deposits in a rapidly changing global environment","docAbstract":"

The demand for metals and raw materials, such as nickel and copper, has been projected to expand in the coming decades, driven by the global energy transition, the need for green technologies, and expanding infrastructure. Consequently, the increasing extraction and production of mining waste can have adverse impacts on surrounding environments and human health. The aim of this thematic collection is to fill critical knowledge gaps in the present-day cycles of metal(loid)s from source to larger sinks, and the effect of environmental management, anthropogenic development, and climate change. Altogether, the studies have been conducted in different natural settings around the world and comprise investigations in laterites, a soil-medicinal plant system, watersheds, and banded iron formations, among others. The geochemical applications in tracing mineralization, its secondary products, and/or potential impact on the immediate environment are highly diverse with applied tools ranging from isotope tracers to major and trace element systematics. Particularly the use of rare earth elements, their patterns and anomalies are methods employed by several studies in this collection. We summarize the findings to offer a potential future direction for the use of geochemical tracing techniques in resource exploration in the context of climate change and environmental challenges.

","language":"English","publisher":"GeoScienceWorld","doi":"10.1144/geochem2024-062","usgsCitation":"Parviainen, A., Beisner, K.R., Blake, J., O'Sullivan, E., Miller, C., and Rosca, C., 2025, Geochemical processes related to mined, milled, or natural metal deposits in a rapidly changing global environment: Geochemistry: Exploration, Environment, Analysis, v. 25, no. 1, geochem2024-062, 6 p., https://doi.org/10.1144/geochem2024-062.","productDescription":"geochem2024-062, 6 p.","ipdsId":"IP-172207","costCenters":[{"id":472,"text":"New Mexico Water Science Center","active":true,"usgs":true}],"links":[{"id":481606,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, China, Indonesia, Iran, United 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0000-0003-4667-0096","orcid":"https://orcid.org/0000-0003-4667-0096","contributorId":217272,"corporation":false,"usgs":true,"family":"Blake","given":"Johanna","affiliations":[{"id":472,"text":"New Mexico Water Science Center","active":true,"usgs":true}],"preferred":true,"id":926023,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"O'Sullivan, Edel Mary 0000-0002-0770-2959","orcid":"https://orcid.org/0000-0002-0770-2959","contributorId":350435,"corporation":false,"usgs":false,"family":"O'Sullivan","given":"Edel Mary","affiliations":[{"id":13697,"text":"GEOMAR Helmholtz Centre for Ocean Research","active":true,"usgs":false}],"preferred":false,"id":926024,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Miller, Clare 0000-0003-3241-0314","orcid":"https://orcid.org/0000-0003-3241-0314","contributorId":350438,"corporation":false,"usgs":false,"family":"Miller","given":"Clare","affiliations":[{"id":83747,"text":"Centre of Ore Deposits and Earth Sciences","active":true,"usgs":false}],"preferred":false,"id":926025,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Rosca, Carolina 0000-0002-2065-2159","orcid":"https://orcid.org/0000-0002-2065-2159","contributorId":350439,"corporation":false,"usgs":false,"family":"Rosca","given":"Carolina","affiliations":[{"id":83750,"text":"Instituto Andaluz de Ciencias de la Tierra","active":true,"usgs":false}],"preferred":false,"id":926026,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70262090,"text":"70262090 - 2025 - Stream discharge determinations using slug additions and specific conductance","interactions":[],"lastModifiedDate":"2025-01-14T14:11:04.494468","indexId":"70262090","displayToPublicDate":"2025-01-10T08:12:38","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Stream discharge determinations using slug additions and specific conductance","docAbstract":"Stream discharge is often determined by wading the stream and measuring the velocity at fixed widths and depths. However, there are conditions when wading measurements are not safe or the measurements are poor because of high turbulence, rocky streambeds, shallow or sheet flow, aquatic plants, or inaccessibility due to ice. Under these conditions, it is often preferable to determine discharge using salt slug addition and downstream measurement of salt concentration with time. A new method for determining stream discharge using specific conductance as a surrogate for salt concentrations is presented. The method adapts an approach that accurately calculates the specific conductance by utilizing ionic molal conductivities to determine the concentration of salt. The method was applied at four mountainous stream sites where a total of twenty-nine slug-additions were performed. The discharge determined from the new method was compared to four alternative methods including discharge from continuous injection, slug addition with discrete sample calibration, wading measurements with velocity measurement, and a stream gage. The discharge ranged from 21.5 to 778 L/s and the median difference between the new method and the traditional methods was -0.01%. Additionally, the p-value (0.75) determined from a paired t-test indicates that there is no significant difference between the discharge determined from the new and alternative discharge methods. The primary advantage of the new method is that it obviates the need to collect and analyze discrete samples to accurately quantify the specific conductance-salt surrogate relationship allowing for rapid, low-cost determination of discharge.","language":"English","publisher":"Wiley","doi":"10.1029/2024WR037771","usgsCitation":"McCleskey, R., Runkel, R.L., Murphy, S.F., and Roth, D.A., 2025, Stream discharge determinations using slug additions and specific conductance: Water Resources Research, v. 61, no. 1, e2024WR037771, 12 p., https://doi.org/10.1029/2024WR037771.","productDescription":"e2024WR037771, 12 p.","ipdsId":"IP-165553","costCenters":[{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true}],"links":[{"id":466658,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2024wr037771","text":"Publisher Index Page"},{"id":466114,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Yosemite National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -119.50673744826068,\n 37.831337921925794\n ],\n [\n -119.50673744826068,\n 37.773982085357346\n ],\n [\n -119.36841180865719,\n 37.773982085357346\n ],\n [\n -119.36841180865719,\n 37.831337921925794\n ],\n [\n -119.50673744826068,\n 37.831337921925794\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"61","issue":"1","noUsgsAuthors":false,"publicationDate":"2025-01-10","publicationStatus":"PW","contributors":{"authors":[{"text":"McCleskey, R. Blaine 0000-0002-2521-8052","orcid":"https://orcid.org/0000-0002-2521-8052","contributorId":205663,"corporation":false,"usgs":true,"family":"McCleskey","given":"R. Blaine","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":923053,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Runkel, Robert L. 0000-0003-3220-481X runkel@usgs.gov","orcid":"https://orcid.org/0000-0003-3220-481X","contributorId":685,"corporation":false,"usgs":true,"family":"Runkel","given":"Robert","email":"runkel@usgs.gov","middleInitial":"L.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":923054,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Murphy, Sheila F. 0000-0002-5481-3635 sfmurphy@usgs.gov","orcid":"https://orcid.org/0000-0002-5481-3635","contributorId":1854,"corporation":false,"usgs":true,"family":"Murphy","given":"Sheila","email":"sfmurphy@usgs.gov","middleInitial":"F.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":923055,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Roth, David A. 0000-0002-7515-3533 daroth@usgs.gov","orcid":"https://orcid.org/0000-0002-7515-3533","contributorId":2340,"corporation":false,"usgs":true,"family":"Roth","given":"David","email":"daroth@usgs.gov","middleInitial":"A.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":923056,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70263745,"text":"70263745 - 2025 - The ichnology of White Sands (New Mexico): Linear traces and human footprints, evidence of transport technology?","interactions":[],"lastModifiedDate":"2025-02-21T15:17:28.720049","indexId":"70263745","displayToPublicDate":"2025-01-10T08:12:13","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":7169,"text":"Quaternary Science Advances","active":true,"publicationSubtype":{"id":10}},"title":"The ichnology of White Sands (New Mexico): Linear traces and human footprints, evidence of transport technology?","docAbstract":"A travois is crafted from one or more wooden poles and is one of the simplest pre-historic vehicles. Although these devices likely played vital roles in the lives of ancient peoples, they have low preservation potential in the archaeological record. Here we report linear features associated with human footprints, some of which are dated to ~22,000 years old, preserved in fine-grained sediments at White Sands National Park (New Mexico, USA). Using a range of examples, we identify three morphological types of trace in late Pleistocene sediments. Type I features occur as single, or bifurcating, narrow (depth>width) grooves which extend in planform from 2 to 50 m in length and trace either straight, gently curved or more irregular lines. They are associated with human footprints, which are truncated longitudinally by the groove and are not associated with other animal tracks. Type II examples are broader (width>depth) and form shallow runnels that typically have straight planforms and may truncate human footprints to one side. Type III examples consist of two parallel, equidistant grooves between 250 and 350 mm apart. They trace gently curving lines that can extend for 30+ m. Human footprints are associated with these features and may occur between and to the side of the parallel grooves. We review a range of possible interpretations including both human and non-human explanations and conclude that the most parsimonious explanation is that they represent drag marks formed by travois consisting of a single pole or crossed poles pulled by humans, presumably during the transport of resources. As such this unique footprint record may represent one of the earliest pieces of evidence for the use of transport technology.","language":"English","publisher":"Elsevier","doi":"10.1016/j.qsa.2025.100274","usgsCitation":"Bennett, M.R., Urban, T.M., Bustos, D., Reynolds, S.C., Jolie, E., Strehlau, H., Odess, D., Springer, K.B., and Pigati, J.S., 2025, The ichnology of White Sands (New Mexico): Linear traces and human footprints, evidence of transport technology?: Quaternary Science Advances, v. 17, 100274, 24 p., https://doi.org/10.1016/j.qsa.2025.100274.","productDescription":"100274, 24 p.","ipdsId":"IP-141461","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":489952,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.qsa.2025.100274","text":"Publisher Index Page"},{"id":482328,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Mexico","otherGeospatial":"White Sands National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -106.48490469738752,\n 32.87487442962231\n ],\n [\n -106.48490469738752,\n 32.65532507872895\n ],\n [\n -106.13098484607615,\n 32.65532507872895\n ],\n [\n -106.13098484607615,\n 32.87487442962231\n ],\n [\n -106.48490469738752,\n 32.87487442962231\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"17","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bennett, Matthew R.","contributorId":265968,"corporation":false,"usgs":false,"family":"Bennett","given":"Matthew","email":"","middleInitial":"R.","affiliations":[{"id":54847,"text":"Bournemouth University, U.K.","active":true,"usgs":false}],"preferred":false,"id":928085,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Urban, Thomas M.","contributorId":271168,"corporation":false,"usgs":false,"family":"Urban","given":"Thomas","email":"","middleInitial":"M.","affiliations":[{"id":12722,"text":"Cornell University","active":true,"usgs":false}],"preferred":false,"id":928086,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bustos, David","contributorId":265969,"corporation":false,"usgs":false,"family":"Bustos","given":"David","email":"","affiliations":[{"id":36189,"text":"National Park Service","active":true,"usgs":false}],"preferred":false,"id":928087,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Reynolds, Sally C.","contributorId":265972,"corporation":false,"usgs":false,"family":"Reynolds","given":"Sally","email":"","middleInitial":"C.","affiliations":[{"id":54847,"text":"Bournemouth University, U.K.","active":true,"usgs":false}],"preferred":false,"id":928088,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jolie, Edward A.","contributorId":351171,"corporation":false,"usgs":false,"family":"Jolie","given":"Edward A.","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":928089,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Strehlau, Hannah C.","contributorId":351172,"corporation":false,"usgs":false,"family":"Strehlau","given":"Hannah C.","affiliations":[{"id":48716,"text":"Bournemouth University","active":true,"usgs":false}],"preferred":false,"id":928090,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Odess, Daniel","contributorId":265975,"corporation":false,"usgs":false,"family":"Odess","given":"Daniel","email":"","affiliations":[{"id":36189,"text":"National Park Service","active":true,"usgs":false}],"preferred":false,"id":928091,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Springer, Kathleen B. 0000-0002-2404-0264 kspringer@usgs.gov","orcid":"https://orcid.org/0000-0002-2404-0264","contributorId":149826,"corporation":false,"usgs":true,"family":"Springer","given":"Kathleen","email":"kspringer@usgs.gov","middleInitial":"B.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":928092,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Pigati, Jeffrey S. 0000-0001-5843-6219 jpigati@usgs.gov","orcid":"https://orcid.org/0000-0001-5843-6219","contributorId":201167,"corporation":false,"usgs":true,"family":"Pigati","given":"Jeffrey","email":"jpigati@usgs.gov","middleInitial":"S.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":928093,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70270924,"text":"70270924 - 2025 - Comment on “The 1886 Charleston, South Carolina, earthquake: Relic railroad offset reveals rupture” by Roger Bilham and Susan E Hough","interactions":[],"lastModifiedDate":"2025-08-27T14:53:48.602099","indexId":"70270924","displayToPublicDate":"2025-01-10T07:47:03","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":10542,"text":"The Seismic Record","active":true,"publicationSubtype":{"id":10}},"title":"Comment on “The 1886 Charleston, South Carolina, earthquake: Relic railroad offset reveals rupture” by Roger Bilham and Susan E Hough","docAbstract":"

No abstract available. 

","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0320240002","usgsCitation":"Pratt, T., Chapman, M.C., and Wu, Q., 2025, Comment on “The 1886 Charleston, South Carolina, earthquake: Relic railroad offset reveals rupture” by Roger Bilham and Susan E Hough: The Seismic Record, v. 5, no. 1, p. 11-22, https://doi.org/10.1785/0320240002.","productDescription":"12 p.","startPage":"11","endPage":"22","ipdsId":"IP-165484","costCenters":[{"id":78686,"text":"Geologic Hazards Science Center - Seismology / Geomagnetism","active":true,"usgs":true}],"links":[{"id":495065,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1785/0320240002","text":"Publisher Index Page"},{"id":494945,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"South Carolina","city":"Charleston","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -80.2996394228662,\n 33.07822253072355\n ],\n [\n -80.2996394228662,\n 32.66474611678957\n ],\n [\n -79.65105919372868,\n 32.66474611678957\n ],\n [\n -79.65105919372868,\n 33.07822253072355\n ],\n [\n -80.2996394228662,\n 33.07822253072355\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"5","issue":"1","noUsgsAuthors":false,"publicationDate":"2025-01-10","publicationStatus":"PW","contributors":{"authors":[{"text":"Pratt, Thomas 0000-0003-3131-3141 tpratt@usgs.gov","orcid":"https://orcid.org/0000-0003-3131-3141","contributorId":201084,"corporation":false,"usgs":true,"family":"Pratt","given":"Thomas","email":"tpratt@usgs.gov","affiliations":[],"preferred":true,"id":947391,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chapman, Martin C.","contributorId":360676,"corporation":false,"usgs":false,"family":"Chapman","given":"Martin","middleInitial":"C.","affiliations":[{"id":12694,"text":"Virginia Tech","active":true,"usgs":false}],"preferred":false,"id":947392,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wu, Qimin","contributorId":360677,"corporation":false,"usgs":false,"family":"Wu","given":"Qimin","affiliations":[{"id":40908,"text":"Lettis Consultants International","active":true,"usgs":false}],"preferred":false,"id":947393,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70261930,"text":"dr1204 - 2025 - Parentage and sibship relationships among captive snakes at the Phoenix Zoo—2024 data summary","interactions":[],"lastModifiedDate":"2025-01-13T15:04:13.764624","indexId":"dr1204","displayToPublicDate":"2025-01-10T07:28:05","publicationYear":"2025","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":9318,"text":"Data Report","code":"DR","onlineIssn":"2771-9448","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1204","displayTitle":"Parentage and Sibship Relationships Among Captive Snakes at the Phoenix Zoo—2024 Data Summary","title":"Parentage and sibship relationships among captive snakes at the Phoenix Zoo—2024 data summary","docAbstract":"

Introduction

The narrow-headed gartersnake (Thamnophis rufipunctatus) is listed as threatened under the Endangered Species Act (U.S. Fish and Wildlife Service, 2014). This species has a strong association with aquatic habitats, and these habitats have been highly altered by impoundments, land-use changes, and the introduction and spread of non-native aquatic species, which contributed to declines in Arizona and New Mexico for the last 30–40 years. Captive breeding programs can be used for genetic rescue and conservation of threatened and endangered species (Frankham, 2010). Often based on pedigree analyses, captive management plans aim to retain genetic diversity, limit inbreeding, and avoid adaptation to captivity (Foose and Ballou, 1988; Hedrick and Miller, 1992; Ivy and others, 2009; Frankham, 2010). In 2011, the Arizona Center for Nature Conservation/Phoenix Zoo (hereafter Phoenix Zoo) developed an ex-situ captive breeding management plan for T. rufipunctatus, with the aim to propagate and release individual T. rufipunctatus back into their native range (Blais and others, 2022). We sequenced 125 microsatellite loci to generate genetic toolsets to track pedigree and assess paternity and sibship relationships for this captive breeding program. Specifically, we used microsatellite loci to assign paternity and relatedness among eight litters composed of multiple female and male snakes born between 2014 and 2023 at the Phoenix Zoo breeding facility. We also completed sibship analysis for six wild gartersnakes collected from Canyon Creek, Arizona, that were brought into the Phoenix Zoo breeding facility in 2017 and 2018.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/dr1204","programNote":"Ecosystems Mission Area—Species Management Research Program","usgsCitation":"Wood, D.A., Mitelberg, A., and Vandergast, A.G., 2025, Parentage and sibship relationships among captive snakes at the Phoenix Zoo—2024 data summary: U.S. Geological Survey Data Report 1204, 20 p., https://doi.org/10.3133/dr1204.","productDescription":"Report: vi, 20 p.; Data Release","numberOfPages":"20","onlineOnly":"Y","ipdsId":"IP-164416","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":465637,"rank":4,"type":{"id":34,"text":"Image Folder"},"url":"https://pubs.usgs.gov/dr/1204/images"},{"id":465638,"rank":5,"type":{"id":39,"text":"HTML Document"},"url":"https://pubs.usgs.gov/publication/dr1204/full"},{"id":465634,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/dr/1204/coverthb.jpg"},{"id":465635,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/dr/1204/dr1204.pdf","text":"Report","size":"2.9 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":465636,"rank":3,"type":{"id":31,"text":"Publication XML"},"url":"https://pubs.usgs.gov/dr/1204/dr1204.XML"},{"id":465639,"rank":6,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9H2ZSSY","text":"USGS Data Release","description":"Wood, D.A., Mitelberg, A., and Vandergast, A.G., 2022, Microsatellite loci for Mogollon narrowheaded gartersnake (Thamnophis rufipunctatus) and the northern Mexican gartersnake (Thamnophis eques megalops) in Arizona and New Mexico (2020–2021): U.S. Geological Survey data release, https://doi.org/10.5066/P9H2ZSSY.","linkHelpText":"Microsatellite loci for Mogollon narrowheaded gartersnake (Thamnophis rufipunctatus) and the northern Mexican gartersnake (Thamnophis eques megalops) in Arizona and New Mexico (2020–2021)"}],"country":"United States","state":"Arizona","otherGeospatial":"Phoenix Zoo","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.95270127458403,\n 33.4530166968578\n ],\n [\n -111.95270127458403,\n 33.44689855407047\n ],\n [\n -111.94059384122394,\n 33.44689855407047\n ],\n [\n -111.94059384122394,\n 33.4530166968578\n ],\n [\n -111.95270127458403,\n 33.4530166968578\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","contact":"

Western Ecological Research Center
U.S. Geological Survey
3020 State University Drive East
Sacramento, California 95819

","tableOfContents":"","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"publishedDate":"2025-01-10","noUsgsAuthors":false,"publicationDate":"2025-01-10","publicationStatus":"PW","contributors":{"authors":[{"text":"Wood, Dustin A. 0000-0002-7668-9911 dawood@usgs.gov","orcid":"https://orcid.org/0000-0002-7668-9911","contributorId":4179,"corporation":false,"usgs":true,"family":"Wood","given":"Dustin","email":"dawood@usgs.gov","middleInitial":"A.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":922324,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mitelberg, Anna 0000-0002-3309-9946 amitelberg@usgs.gov","orcid":"https://orcid.org/0000-0002-3309-9946","contributorId":218945,"corporation":false,"usgs":true,"family":"Mitelberg","given":"Anna","email":"amitelberg@usgs.gov","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":922325,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vandergast, Amy G. 0000-0002-7835-6571 avandergast@usgs.gov","orcid":"https://orcid.org/0000-0002-7835-6571","contributorId":3963,"corporation":false,"usgs":true,"family":"Vandergast","given":"Amy","email":"avandergast@usgs.gov","middleInitial":"G.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":922326,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70263508,"text":"70263508 - 2025 - Validation of the U37K' paleotemperature proxy in the South Brazilian Bight from core-top sediments","interactions":[],"lastModifiedDate":"2025-02-13T16:31:32.476594","indexId":"70263508","displayToPublicDate":"2025-01-09T10:24:18","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Validation of the U37K' paleotemperature proxy in the South Brazilian Bight from core-top sediments","docAbstract":"

The paleothermometer based on the alkenone unsaturation index (U37K′\">U37K′) is often used to reconstruct past sea surface temperatures (SST). In the SW Atlantic Ocean, however, a limited understanding of the seasonal and depth distribution of coccolithophores, which generates the U37K′\">U37K′ signal preserved in ocean sediments, hinders accurate estimates of past regional SSTs. We analyzed 45 core-top sediment samples from the continental shelf of the South Brazilian Bight (SBB, 23 °S to 28 °S) to assess regional spatial U37K′\">U37K′-SST gradients and improve SST estimates. The U37K′\">U37K′ data were converted to SST using six published paleotemperature equations and compared to modern observational SST data from the World Ocean Atlas (2018) data set. Data indicate that the U37K′\">U37K′ signal is produced during the austral summer and autumn when regional episodic upwelling events occur over the inner-shelf and the nutricline shoals at the slope. Our analysis of core-top data shows that SST estimates derived from most calibration equations closely align with modern observed temperatures but are skewed toward warmer months associated with upwelling-derived nutrients. Our findings underscore the importance of considering regional and seasonal biases to improve the accuracy of paleotemperature reconstructions. Understanding the factors influencing the SBB U37K′\">U37K′ signal enables a more meaningful comparison between regional paleoceanographic studies, improving our understanding of past changes in the SW Atlantic Ocean and our ability to predict regional SST response to ongoing and future warming.

","language":"English","publisher":"Elsevier","doi":"10.1016/j.orggeochem.2025.104928","usgsCitation":"Stanchak, F., Richey, J.N., Gerotto, A., Shevenell, A., Bicego, M., Toledo, F., de Mahiques, M., and Nagai, R., 2025, Validation of the U37K' paleotemperature proxy in the South Brazilian Bight from core-top sediments: Organic Geochemistry, v. 200, 104928, 9 p., https://doi.org/10.1016/j.orggeochem.2025.104928.","productDescription":"104928, 9 p.","ipdsId":"IP-142195","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":482037,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Brazil","otherGeospatial":"South Brazilian Bight","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -50,\n -22\n ],\n [\n -50,\n -28\n ],\n [\n -40,\n -28\n ],\n [\n -40,\n -22\n ],\n [\n -50,\n -22\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"200","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Stanchak, Felipe","contributorId":350942,"corporation":false,"usgs":false,"family":"Stanchak","given":"Felipe","affiliations":[],"preferred":false,"id":927222,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richey, Julie N. 0000-0002-2319-7980 jrichey@usgs.gov","orcid":"https://orcid.org/0000-0002-2319-7980","contributorId":174046,"corporation":false,"usgs":true,"family":"Richey","given":"Julie","email":"jrichey@usgs.gov","middleInitial":"N.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":927223,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gerotto, Amanda","contributorId":350898,"corporation":false,"usgs":false,"family":"Gerotto","given":"Amanda","affiliations":[{"id":83867,"text":"Center for Marine Studies, University of Paraná, PR, Brazil","active":true,"usgs":false}],"preferred":false,"id":927224,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Shevenell, Amelia","contributorId":350899,"corporation":false,"usgs":false,"family":"Shevenell","given":"Amelia","affiliations":[{"id":83868,"text":"University of South Florida, College of Marine Science","active":true,"usgs":false}],"preferred":false,"id":927225,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bicego, Marcia C.","contributorId":350900,"corporation":false,"usgs":false,"family":"Bicego","given":"Marcia C.","affiliations":[{"id":83869,"text":"Oceanographic Institute, University of Sao Paulo, SP, Brazil","active":true,"usgs":false}],"preferred":false,"id":927226,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Toledo, Felipe A.","contributorId":350901,"corporation":false,"usgs":false,"family":"Toledo","given":"Felipe A.","affiliations":[{"id":83869,"text":"Oceanographic Institute, University of Sao Paulo, SP, Brazil","active":true,"usgs":false}],"preferred":false,"id":927227,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"de Mahiques, Michel M.","contributorId":350902,"corporation":false,"usgs":false,"family":"de Mahiques","given":"Michel M.","affiliations":[{"id":83870,"text":"Oceanographic Institute of the University of São Paulo, São Paulo, SP, Brazil.","active":true,"usgs":false}],"preferred":false,"id":927228,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Nagai, Renata H.","contributorId":350903,"corporation":false,"usgs":false,"family":"Nagai","given":"Renata H.","affiliations":[{"id":83871,"text":"University of Sao Paulo, Oceanographic Institute (Brazil)","active":true,"usgs":false}],"preferred":false,"id":927229,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70264795,"text":"70264795 - 2025 - Phenology in higher education","interactions":[],"lastModifiedDate":"2025-03-24T14:28:17.744924","indexId":"70264795","displayToPublicDate":"2025-01-09T09:24:11","publicationYear":"2025","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Phenology in higher education","docAbstract":"

Phenological data collection and analysis are well-suited to higher education settings, providing valuable opportunities for hands-on data collection, manipulation, and interpretation. Few subjects are more conducive or accessible for engaging diverse learners in meaningful and impactful science at such large scales and minimal cost. In this chapter, we provide a range of examples of how instructors have incorporated observing and analysis of seasonal phenomena into their curricula. Many of these examples can be readily replicated and folded into new courses.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Phenology: An integrative environmental science","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Springer","doi":"10.1007/978-3-031-75027-4_27","usgsCitation":"Crimmins, T., Barker, B., Bergl, D., Brewer, S., de Beurs, K., Jones, S., Long, T., Mohl, E., Oschrin, E., Richardson, A.D., Schriever, T., Walker, J., and Williams, T., 2025, Phenology in higher education, chap. of Phenology: An integrative environmental science, p. 609-635, https://doi.org/10.1007/978-3-031-75027-4_27.","productDescription":"27 p.","startPage":"609","endPage":"635","ipdsId":"IP-163141","costCenters":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"links":[{"id":498691,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://research.wur.nl/en/publications/phenology-in-higher-education","text":"External 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University","active":true,"usgs":false}],"preferred":false,"id":931717,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bergl, Darby D. 0009-0007-3584-4974","orcid":"https://orcid.org/0009-0007-3584-4974","contributorId":352569,"corporation":false,"usgs":false,"family":"Bergl","given":"Darby D.","affiliations":[{"id":84265,"text":"Center for Ecosystem Science and Society, Northern Arizona, Flagstaff, AZ, USA","active":true,"usgs":false}],"preferred":false,"id":931718,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brewer, Samantha","contributorId":352570,"corporation":false,"usgs":false,"family":"Brewer","given":"Samantha","affiliations":[{"id":84266,"text":"USA National Phenology Network, School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA","active":true,"usgs":false}],"preferred":false,"id":931719,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"de Beurs, Kirsten","contributorId":197460,"corporation":false,"usgs":false,"family":"de Beurs","given":"Kirsten","email":"","affiliations":[],"preferred":false,"id":931720,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jones, Sarah","contributorId":352571,"corporation":false,"usgs":false,"family":"Jones","given":"Sarah","affiliations":[{"id":84269,"text":"Chicago Botanic Garden, Chicago, IL, USA","active":true,"usgs":false}],"preferred":false,"id":931721,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Long, Tammy 0000-0003-0849-9056","orcid":"https://orcid.org/0000-0003-0849-9056","contributorId":352572,"corporation":false,"usgs":false,"family":"Long","given":"Tammy","affiliations":[{"id":84270,"text":"Michigan State University, Department of Plant Biology, East Lansing, MI, USA","active":true,"usgs":false}],"preferred":false,"id":931722,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Mohl, Emily","contributorId":352573,"corporation":false,"usgs":false,"family":"Mohl","given":"Emily","affiliations":[{"id":84271,"text":"Biology Department, St. Olaf College, Northfield, MN, USA","active":true,"usgs":false}],"preferred":false,"id":931723,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Oschrin, Emma","contributorId":352574,"corporation":false,"usgs":false,"family":"Oschrin","given":"Emma","affiliations":[{"id":84272,"text":"Northwestern University, Chicago, IL, USA","active":true,"usgs":false}],"preferred":false,"id":931724,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Richardson, Andrew D.","contributorId":178336,"corporation":false,"usgs":false,"family":"Richardson","given":"Andrew","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":931725,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Schriever, Tiffany A. 0000-0001-6128-9133","orcid":"https://orcid.org/0000-0001-6128-9133","contributorId":352575,"corporation":false,"usgs":false,"family":"Schriever","given":"Tiffany A.","affiliations":[{"id":84273,"text":"Department of Biological Sciences, Western Michigan University, Kalamazoo, MI, USA","active":true,"usgs":false}],"preferred":false,"id":931726,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Walker, Jessica J. 0000-0002-3225-0317","orcid":"https://orcid.org/0000-0002-3225-0317","contributorId":207373,"corporation":false,"usgs":true,"family":"Walker","given":"Jessica J.","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":931727,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Williams, Tanisha M. 0000-0002-1338-2218","orcid":"https://orcid.org/0000-0002-1338-2218","contributorId":352576,"corporation":false,"usgs":false,"family":"Williams","given":"Tanisha M.","affiliations":[{"id":84274,"text":"University of Georgia, Department of Plant Biology, Athens, GA, USA","active":true,"usgs":false}],"preferred":false,"id":931728,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}} ,{"id":70262091,"text":"70262091 - 2025 - Widespread occurrence of former anhydrite phenocrysts in Laramide-age magmas related to porphyry-skarn Cu mineralization at Santa Rita and Hanover-Fierro, New Mexico, USA","interactions":[],"lastModifiedDate":"2025-02-11T15:44:02.081868","indexId":"70262091","displayToPublicDate":"2025-01-09T07:56:05","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2420,"text":"Journal of Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Widespread occurrence of former anhydrite phenocrysts in Laramide-age magmas related to porphyry-skarn Cu mineralization at Santa Rita and Hanover-Fierro, New Mexico, USA","docAbstract":"Reports of magmatic anhydrite are relatively rare, with only ~30 occurrences documented worldwide so far. However, magmatic anhydrite saturation is difficult to recognize because anhydrite decomposes rapidly in near-surface environments. In most cases, only anhydrite inclusions shielded within other phenocryst phases were able to survive. Alternatively, since anhydrite phenocrysts preserved in fresh volcanic rocks are characteristically intergrown with apatite phenocrysts, the former presence of anhydrite phenocrysts can be recognized based on the occurrence of lath-shaped cavities that show a strong spatial association with apatite phenocrysts. These cavities can be either empty or filled with low-temperature, secondary minerals such as zeolites, carbonates, or microcrystalline silica. A systematic search for the occurrence of such cavities, combined with optical and Raman-spectroscopic identification of anhydrite inclusions preserved within apatite, hornblende and quartz phenocrysts, demonstrates that most of the Laramide-age magmas associated with the Santa Rita and Hanover-Fierro porphyry-skarn Cu (Zn, Mo, Au, Pb) deposits were saturated in magmatic anhydrite. The anhydrite typically coexisted with monosulfide solid solution (MSS), suggesting oxygen fugacities of ~2.0±0.5 log units above the fayalite-magnetite-quartz buffer. The magmas range from andesitic to rhyodacitic in composition, and from shortly pre-mineralization (~61 Ma) to shortly post-mineralization (~57 Ma) in age. In three samples with particularly well-recognizable former anhydrite phenocrysts, their modal abundance could be quantified based on high-resolution scans of polished hand specimens. The observed modal anhydrite abundances of 0.63–1.8 vol% translate into minimum magma sulfur contents of 0.20–0.56 wt% S. The highest sulfur content of 0.56 wt% S is difficult to reconcile with available anhydrite solubility models, but it could be reproduced in an anhydrite solubility experiment performed at 950 °C and 1.15 GPa on a natural latite containing 13.1 wt% dissolved H2O. The sample with the second-highest sulfur content of 0.26 wt% S requires ~10 wt% H2O in the silicate melt, and, consequently, a minimum pressure of ~0.5 GPa. Taken together, the results suggest that the magmas of the Central Mining District were extremely hydrous and thus originated from great depth. Indeed, their major element compositions and reconstructed H2O and S contents agree well with experimentally observed and numerically predicted compositions of residual silicate melts after 50–70 wt% crystallization of ordinary arc basalts at high pressure and high oxygen fugacities.","language":"English","publisher":"Oxford University Press","doi":"10.1093/petrology/egaf002","usgsCitation":"Audétat, A., Chang, J., and Gaynor, S.P., 2025, Widespread occurrence of former anhydrite phenocrysts in Laramide-age magmas related to porphyry-skarn Cu mineralization at Santa Rita and Hanover-Fierro, New Mexico, USA: Journal of Petrology, v. 66, no. 2, egaf002, 23 p., https://doi.org/10.1093/petrology/egaf002.","productDescription":"egaf002, 23 p.","ipdsId":"IP-168229","costCenters":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":487533,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/petrology/egaf002","text":"Publisher Index Page"},{"id":466109,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Mexico","otherGeospatial":"Hanover-Fierro, Santa Rita","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -108.10261817259553,\n 32.85610540110157\n ],\n [\n -108.10261817259553,\n 32.78023012839911\n ],\n [\n -108.0478342844907,\n 32.78023012839911\n ],\n [\n -108.0478342844907,\n 32.85610540110157\n ],\n [\n -108.10261817259553,\n 32.85610540110157\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"66","issue":"2","noUsgsAuthors":false,"publicationDate":"2025-01-09","publicationStatus":"PW","contributors":{"authors":[{"text":"Audétat, Andreas","contributorId":348171,"corporation":false,"usgs":false,"family":"Audétat","given":"Andreas","affiliations":[{"id":83309,"text":"Bavarian Geoinstitute, University of Bayreuth","active":true,"usgs":false}],"preferred":false,"id":923057,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chang, Jia","contributorId":348172,"corporation":false,"usgs":false,"family":"Chang","given":"Jia","affiliations":[{"id":83309,"text":"Bavarian Geoinstitute, University of Bayreuth","active":true,"usgs":false}],"preferred":false,"id":923058,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gaynor, Sean Patrick 0000-0002-8353-511X","orcid":"https://orcid.org/0000-0002-8353-511X","contributorId":346264,"corporation":false,"usgs":true,"family":"Gaynor","given":"Sean","email":"","middleInitial":"Patrick","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":923059,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70263325,"text":"70263325 - 2025 - Site-level connectivity identified from multiple sources of movement data to inform conservation of a migratory bird","interactions":[],"lastModifiedDate":"2025-02-06T16:15:44.437285","indexId":"70263325","displayToPublicDate":"2025-01-08T10:10:45","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2163,"text":"Journal of Applied Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Site-level connectivity identified from multiple sources of movement data to inform conservation of a migratory bird","docAbstract":"
  1. Migratory birds depend on a suite of sites across their annual cycles, making them vulnerable to a wide variety of anthropogenic pressures. Current area-based conservation measures have been found inadequate to safeguard migratory birds, in part due to a lack of consideration for the connectivity between sites mediated by the movements of individuals.
  2. To address this issue, we develop a network analysis integrating different types of individual movement data for a migratory shorebird, the Black-tailed Godwit (Limosa limosa), across the East Atlantic Flyway. Leveraging metal-ring recoveries, colour-ring re-sightings and satellite tracking from over 10,000 individual godwits, we quantify variation in connectivity between sites across the migratory range, using two weighted metrics to address sampling biases.
  3. Colour-ring re-sightings provided the largest number of sites (70%) and links (60% and 43% per season) overall, followed by tracking data (50% of sites, 49% and 63% of links per season) and ring recoveries (25% of sites, <1% of links per season), with clear regional variation in datatype contributions. Sampling completeness of the network structure varied with longitude, with information particularly lacking in central and eastern countries of both Europe and Africa.
  4. We identified 49 sites playing a disproportionate role in the site network, each with direct connections to 48 (interquartile range 32–84) other sites, on average. Just 23 (47%) top sites are formally recognized for their international importance for Black-tailed Godwits, and 33 (67%) were robust to sampling incompleteness. Across all 1058 sites, 20% lacked protected area coverage, and per site, 44% (44% ± SD) of bird relocations fell within protected areas.
  5. Integrating multiple sources of data improved geographical coverage and completeness of the site network, allowing us to quantify the importance of sites in terms of connectivity across the flyway. Our results highlight shortcomings of existing area-based conservation measures and add value to ongoing efforts to identify important sites for migratory birds.
  6. Policy implications. The increasing availability of individual movement data provides valuable opportunities to reveal the inter-dependence of sites used by migratory species, which can help identify priority areas and facilitate flyway-scale management.
","language":"English","publisher":"British Ecological Society","doi":"10.1111/1365-2664.14839","usgsCitation":"Beal, M., Nightingale, J., Belo, J., Batey, C., Belting, H., Bocher, P., Burgess, M., Craft, T., Crockford, N., Delaporte, P., Donaldson, L., Gelinaud, G., Gill, J., Gunnarsson, T., Morrison, B.J., Gutierrez, J., Hooijmeijer, J., Howison, R., Hunke, P., Jomat, L., Lemke, H., Ludwig, J.P., Majoor, F., Marlow, C., Masero, J., Melter, J., Nicholson, I., Parejo, M., O'Mahony, B., Pasanen, E., Pessa, J., Piersma, T., Rocha, A., Robin, F., Roodbergen, M., Rousseau, P., Salewski, V., Schmidt, L., Smart, J., Staneva, A., Tibbitts, T., Timonen, S., Alves, J., and Dias, M., 2025, Site-level connectivity identified from multiple sources of movement data to inform conservation of a migratory bird: Journal of Applied Ecology, v. 62, no. 2, p. 303-316, https://doi.org/10.1111/1365-2664.14839.","productDescription":"14 p.","startPage":"303","endPage":"316","ipdsId":"IP-166262","costCenters":[{"id":65299,"text":"Alaska Science Center Ecosystems","active":true,"usgs":true}],"links":[{"id":492043,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://research.rug.nl/en/publications/9554b274-b747-4a98-9e8e-6af246cca9cb","text":"External Repository"},{"id":481749,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"62","issue":"2","noUsgsAuthors":false,"publicationDate":"2025-01-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Beal, M.","contributorId":350559,"corporation":false,"usgs":false,"family":"Beal","given":"M.","affiliations":[{"id":83771,"text":"cE3c - 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Exposure to ambient particulate matter (PM) with an aerodynamic diameter of <10 μm (PM10) is a well-established health hazard. There is increasing evidence that geogenic (Earth-derived) particles can induce adverse biological effects upon inhalation, though there is high variability in particle bioreactivity that is associated with particle source and physicochemical properties. In this study, we investigated physicochemical properties and biological reactivity of volcanic ash from the April 2021 eruption of La Soufrière volcano, St. Vincent, and two desert dust samples: a standardized test dust from Arizona and an aeolian Gobi Desert dust sampled in China. We determined particle size, morphology, mineralogy, surface texture and chemistry in sub-10 μm material to investigate associations between particle physicochemical properties and observed bioreactivity. We assessed cellular responses (cytotoxic and pro-inflammatory effects) to acute particle exposures (24 hr) in monocultures at the air-liquid interface using two types of cells of the human airways: BEAS-2B bronchial epithelial cells and A549 alveolar type II epithelial cells. In acellular assays, we also assessed particle oxidative potential and the presence of microorganisms. The results showed that volcanic ash and desert dust exhibit intrinsically different particle morphology, surface textures and chemistry, and variable mineralogical content. We found that Gobi Desert dust is more bioreactive than freshly erupted volcanic ash and Arizona test dust, which is possibly linked to the presence of microorganisms (bacteria) and/or nanoscale elongated silicate minerals (potentially clay such as illite or vermiculite) on particle surfaces.

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This report was developed to evaluate the performance of a set of proposed alternatives for Cervus elaphus canadensis (elk) and Bison bison (bison) management at the National Elk Refuge in Wyoming, U.S.A., and to inform a National Environmental Policy Act Environmental Impact Statement focused on developing the next “Bison and Elk Management Plan” (BEMP). The U.S. Geological Survey facilitated a structured decision-making process for the U.S. Fish and Wildlife Service to develop the alternatives and the criteria (performance metrics) for evaluating the alternatives.

Chapter A (this chapter) provides scoping details of the “BEMP”, a summary of the 19 metrics that are used to evaluate the performance of each of 5 alternatives, and methodological details of 2 performance metrics that were not covered in other technical chapters. Additional technical details, results, and interpretations are briefly covered in this chapter, but are mostly contained in chapters B–E.

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Center Director, Eastern Ecological Science Center
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12100 Beech Forest Rd., Ste 4039
Laurel, MD 20708-4039

Contact Pubs Warehouse

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Preface 

This report was developed to evaluate the performance of a set of proposed alternatives for Cervus elaphus canadensis (elk) and Bison bison (bison) management at the National Elk Refuge (NER) in Wyoming, U.S.A., and to inform a National Environmental Policy Act Environmental Impact Statement focused on developing the next “Bison and Elk Management Plan” (BEMP). The U.S. Geological Survey facilitated a structured decision-making process for the U.S. Fish and Wildlife Service to develop the alternatives and the criteria (performance metrics) for evaluating the alternatives. Chapter A provides scoping details of the report, a summary of the 19 metrics that are used to evaluate the performance of each of 5 alternatives, and methodological details of 2 performance metrics that were not covered in other technical chapters. Chapter B analyzes elk population and chronic wasting disease dynamics under the five alternatives. Chapter C evaluates elk space-use based on data collected from global positioning system collars on elk and expert elicitation for scenarios with limited data. Chapter D evaluates bison population dynamics, conflict, and harvest patterns under the five alternatives. Chapter E assesses social and economic consequences. The alternatives are anticipated to have varying affects on bison and elk population abundance and private land use, wildlife-related recreation and tourism, and hunters and outfitters in the region. Each chapter was developed under advisement of a technical team, made up science experts from U.S. Fish and Wildlife Service, National Park Service, U.S. Forest Service, and Wyoming Game and Fish Department.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20245119","collaboration":"Prepared in cooperation with the U.S. Departement of Agriculture, National Park Service, U.S. Fish and Wildlife Service, and Wyoming Game Fish Department","programNote":"Ecosystems Missions Area—Biological Threats & Invasive Species Research Program, Environmental Health Program, and the Species Management Research Program","usgsCitation":"Cook, J.D., and Cross, P.C., eds., 2025, Decision analysis in support of the National Elk Refuge bison and elk management plan: U.S. Geological Survey Scientific Investigations Report 2024–5119, 5 chap. (A–E), variously paged, https://doi.org/10.3133/sir20245119.","productDescription":"5 Chapters","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true},{"id":50464,"text":"Eastern Ecological Science Center","active":true,"usgs":true}],"links":[{"id":465873,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2024/5119/coverthb2.jpg"},{"id":465935,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2024/5119/sir20245119.pdf","text":"Report","size":"12.9 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2024-5119 PDF"}],"contact":"

Center Director, Eastern Ecological Science Center
U.S. Geological Survey
12100 Beech Forest Rd., Ste 4039
Laurel, MD 20708-4039

Contact Pubs Warehouse

","tableOfContents":"


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We evaluated measurable attributes describing the current and future distribution of Cervus elaphus canadensis (elk) across a region surrounding Jackson, Wyoming, for five feedground management alternatives proposed by the U.S. Fish and Wildlife Service as a revision to the 2007 “Bison and Elk Management Plan” of the National Elk Refuge. A resource selection function evaluated measurable attributes of interest to managers, including elk use of private property and sensitive habitat types at monthly timesteps and varying winter conditions. The study area boundaries were created through an expert elicitation process and consist of the Jackson Elk Herd Unit, Grand Teton National Park, the National Elk Refuge, and the northern third of the Fall Creek Elk Herd Unit. For each of the five alternatives, we distributed monthly elk numbers calculated in a concurrent analysis that simulated chronic wasting disease dynamics in this system for 20 years. Measurable attributes representing potential elk use of (1) private property, (2) cattle properties as an index of Brucella abortus risk, and sensitive habitats consisting of (3) Populus tremuloides Michx. (quaking aspen), (4) Populus angustifolia E. James (narrowleaf cottonwood), and (5) Salix L. (willow) in core winter use areas all closely followed the declines of elk abundance projected by the elk chronic wasting disease model. After 20 years, the continue feeding alternative ranked most favorably in terms of limiting elk days on private property and reducing brucellosis risk from elk to cattle because this alternative concentrated elk on the National Elk Refuge and resulted in the lowest elk population sizes. However, other management alternatives, including increase harvest and reduce feeding, tended to limit elk use of sensitive quaking aspen, narrowleaf cottonwood, and willow habitats during winter (December–April).

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Center Director, Northern Rocky Mountain Science Center
U.S. Geological Survey
2327 University Way, Suite 2
Bozeman, MT 59715

Contact Pubs Warehouse

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The National Elk Refuge (Refuge) is managed by the U.S. Fish and Wildlife Service and includes habitats for bison and elk. Bison and elk provide opportunities for wildlife-related recreation and contribute to the tourism industry in and around Jackson, Wyoming. Over the last century, the Refuge has provisioned supplemental feed to elk and, more recently, bison during winter months to ensure adequate forage and prevent starvation and conflict with private landowners. However, supplemental feeding artificially aggregates animals and can increase rates of disease transmission and localized damage to sensitive habitats near the feeding areas. This report presents analyses and results to support two of the nine management objectives in the next “Bison and Elk Management Plan,” with a particular focus on the social and economic consequences of five management alternatives considered in this study. The alternatives are to continue feeding bison and elk during winter months on the Refuge, stop feeding after CWD is measured at 3 percent prevalence or above in the Jackson elk herd, stop feeding immediately, reduce feeding for five years and then stop feeding, and increase elk harvest for five years and then stop feeding. These alternatives are anticipated to alter bison and elk population and space-use dynamics, with corresponding effects on wildlife-related recreation and tourism, including the number of visitors and sleigh-ride participants on the Refuge, and hunters and outfitters within the Jackson Elk Herd Unit. The performance of each of this study’s alternatives was variable, resulting in overlap in the performance of alternatives on the select objectives over the next 20 years. Generally, visitation-related objectives performed better under the continue feeding alternative, whereas hunting-related objectives performed better under the increase harvest alternative. The results presented here may assist U.S. Fish and Wildlife Service decision makers in balancing social and economic benefits identified in the decision-making process for the “Bison and Elk Management Plan” with other objectives evaluated in this report.

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Center Director, Eastern Ecological Science Center
U.S. Geological Survey
12100 Beech Forest Rd., Ste 4039
Laurel, MD 20708-4039

Contact Pubs Warehouse

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The U.S. Fish and Wildlife Service National Elk Refuge (NER) in Jackson, Wyoming, supplementally feeds Cervus elaphus canadensis (elk) and Bison bison (American bison) during winter months, but the costs and benefits of this management strategy are being reevaluated considering the potential effects of chronic wasting disease (CWD) on elk. U.S. Geological Survey scientists worked with the U.S. Fish and Wildlife Service on a structured decision-making process that considered five alternative feeding strategies and their effects on bison, elk, and humans. This chapter focuses on elk population dynamics and CWD using computer models. Our modeling results highlight a short- versus long-term tradeoff between the continue feeding and no feeding alternatives. Management alternatives associated with a cessation of supplemental feeding were assumed to make elk more susceptible to severe winters, resulting in initially lower population sizes and less CWD transmission. The increased CWD prevalence and transmission associated with the continue feeding alternative resulted in lower elk population sizes by year 20 (mean=6,700, standard deviation=1,600 in the analysis area) in 70 percent of simulations compared to no feeding (mean=8,400, standard deviation=1,500). No feeding alternatives resulted in higher elk populations than the continue feeding alternative between years 7 and 13 when CWD prevalence exceeded 20 percent in the Jackson elk herd. The increased harvest alternative minimized CWD and natural mortality in 83 out of 100 simulations compared to the continue feeding alternative.

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Center Director, Northern Rocky Mountain Science Center
U.S. Geological Survey
2327 University Way, Suite 2
Bozeman, MT 59715

Contact Pubs Warehouse

","tableOfContents":"","publishingServiceCenter":{"id":10,"text":"Baltimore PSC"},"publishedDate":"2025-01-08","noUsgsAuthors":false,"publicationDate":"2025-01-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Cross, Paul C. 0000-0001-8045-5213","orcid":"https://orcid.org/0000-0001-8045-5213","contributorId":218820,"corporation":false,"usgs":true,"family":"Cross","given":"Paul C.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":919485,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cook, Jonathan D. 0000-0001-7000-8727","orcid":"https://orcid.org/0000-0001-7000-8727","contributorId":291411,"corporation":false,"usgs":true,"family":"Cook","given":"Jonathan","middleInitial":"D.","affiliations":[{"id":50464,"text":"Eastern Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":919486,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cole, Eric K. 0000-0002-2229-5853","orcid":"https://orcid.org/0000-0002-2229-5853","contributorId":145755,"corporation":false,"usgs":false,"family":"Cole","given":"Eric K.","affiliations":[{"id":16228,"text":"U.S. Fish and Wildlife Service, National Elk Refuge, PO Box 510, Jackson, WY 83001 USA","active":true,"usgs":false}],"preferred":false,"id":919487,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70261165,"text":"sir20245119D - 2025 - Bison population dynamics, harvest, and conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming","interactions":[{"subject":{"id":70261165,"text":"sir20245119D - 2025 - Bison population dynamics, harvest, and conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming","indexId":"sir20245119D","publicationYear":"2025","noYear":false,"chapter":"D","displayTitle":"Bison Population Dynamics, Harvest, and Human Conflict Potential Under Feedground Management Alternatives at the National Elk Refuge in Jackson, Wyoming","title":"Bison population dynamics, harvest, and conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming"},"predicate":"IS_PART_OF","object":{"id":70261983,"text":"sir20245119 - 2025 - Decision analysis in support of the National Elk Refuge bison and elk management plan","indexId":"sir20245119","publicationYear":"2025","noYear":false,"title":"Decision analysis in support of the National Elk Refuge bison and elk management plan"},"id":1},{"subject":{"id":70261165,"text":"sir20245119D - 2025 - Bison population dynamics, harvest, and conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming","indexId":"sir20245119D","publicationYear":"2025","noYear":false,"chapter":"D","displayTitle":"Bison Population Dynamics, Harvest, and Human Conflict Potential Under Feedground Management Alternatives at the National Elk Refuge in Jackson, Wyoming","title":"Bison population dynamics, harvest, and conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming"},"predicate":"SUPERSEDED_BY","object":{"id":70270251,"text":"sir20255076D - 2025 - Bison population dynamics, harvest, and human conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming","indexId":"sir20255076D","publicationYear":"2025","noYear":false,"chapter":"D","title":"Bison population dynamics, harvest, and human conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming"},"id":2}],"isPartOf":{"id":70261983,"text":"sir20245119 - 2025 - Decision analysis in support of the National Elk Refuge bison and elk management plan","indexId":"sir20245119","publicationYear":"2025","noYear":false,"title":"Decision analysis in support of the National Elk Refuge bison and elk management plan"},"supersededBy":{"id":70270251,"text":"sir20255076D - 2025 - Bison population dynamics, harvest, and human conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming","indexId":"sir20255076D","publicationYear":"2025","noYear":false,"title":"Bison population dynamics, harvest, and human conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming"},"lastModifiedDate":"2025-08-14T19:58:43.465792","indexId":"sir20245119D","displayToPublicDate":"2025-01-08T09:40:00","publicationYear":"2025","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2024-5119","chapter":"D","displayTitle":"Bison Population Dynamics, Harvest, and Human Conflict Potential Under Feedground Management Alternatives at the National Elk Refuge in Jackson, Wyoming","title":"Bison population dynamics, harvest, and conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming","docAbstract":"

Bison bison (bison) were once abundant across North America but declined due to overharvesting in the late 1800s. The reintroduced population in and around Jackson, Wyoming has averaged 485 individuals between 2018–2023 and is the subject of a planning process to inform management strategies that will guide the U.S. Fish and Wildlife’s next “Bison and Elk Management Plan” for the National Elk Refuge. This small population may benefit from historical winter-feeding operations on the National Elk Refuge because those operations may increase overwinter survival and limit human-bison conflicts, which are the number of individual bison that engage in nuisance, damaging, or otherwise aggressive behaviors with humans and livestock, that may lead to culling and other sources of mortality (for example, vehicle collisions). To inform the next “Bison and Elk Management Plan,” the U.S. Geological Survey used a population model to evaluate five management alternatives for bison and Cervus elaphus canadensis (elk) feedground operations that included continuing the elk and bison feeding program, immediately stopping the feeding program, and three other alternatives that would phase out the feeding program after a period of time. The results indicate that the bison population would be expected to decline over the next 20 years under all alternatives that stop feeding bison on the refuge. Further, this decline would lead to an associated reduction in bison harvest opportunities for resident, nonresident, and Tribal hunters. Finally, human-bison conflicts would also be expected to increase under the no feeding alternatives because bison may venture onto private lands in greater numbers if feed is not provisioned during winter months. In combination, these effects suggest that feeding may lead to better outcomes for bison over the next 20 years; however, these effects may be traded off against other downsides of the feedground program, such as increased rates of animal-to-animal contact on feedgrounds that can lead to disease transmission.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20245119D","collaboration":"Prepared in cooperation with the National Park Service, U.S. Fish and Wildlife Service, and Wyoming Game and Fish Department","programNote":"Ecosystems Mission Area—Biological Threats & Invasive Species Research Program","usgsCitation":"Cook, J.D., McEachran, M.C., Cotterill, G.G., and Cole, E.K., 2025, Bison population dynamics, harvest, and conflict potential under feedground management alternatives at the National Elk Refuge in Jackson, Wyoming, chap. D of Cook, J.D., and Cross, P.C., eds., Decision analysis in support of the National Elk Refuge bison and elk management plan: U.S. Geological Survey Scientific Investigations Report 2024–5119, 24 p., https://doi.org/10.3133/sir20245119D.","productDescription":"Report: vi, 24 p.; Software Release","numberOfPages":"24","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-166368","costCenters":[{"id":50464,"text":"Eastern Ecological Science Center","active":true,"usgs":true}],"links":[{"id":465783,"rank":6,"type":{"id":35,"text":"Software Release"},"url":"https://doi.org/10.5066/P1QZGZSN","text":"USGS software release","linkHelpText":"- Jackson bison population projections"},{"id":465782,"rank":5,"type":{"id":34,"text":"Image Folder"},"url":"https://pubs.usgs.gov/sir/2024/5119/d/images/"},{"id":465779,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2024/5119/d/sir20245119D.pdf","text":"Report","size":"5.02 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2024-5119 Chap. D PDF"},{"id":465778,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2024/5119/d/coverthb2.jpg"},{"id":465781,"rank":4,"type":{"id":31,"text":"Publication XML"},"url":"https://pubs.usgs.gov/sir/2024/5119/d/sir20245119D.XML","linkFileType":{"id":8,"text":"xml"},"description":"SIR 2024-5119 Chap. D XML"},{"id":465780,"rank":3,"type":{"id":39,"text":"HTML Document"},"url":"https://pubs.usgs.gov/publication/sir20245119D/full","text":"Report","linkFileType":{"id":5,"text":"html"},"description":"SIR 2024-5119 Chap. D HTML"}],"country":"United States","state":"Wyoming","city":"Jackson","otherGeospatial":"National Elk Refuge","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -110.78225266437141,\n 43.46790181387567\n ],\n [\n -110.72445411600302,\n 43.480764457816235\n ],\n [\n -110.70981181708308,\n 43.502568770827935\n ],\n [\n -110.6897749869821,\n 43.51262964481907\n ],\n [\n -110.6628023310768,\n 43.52213004158219\n ],\n [\n -110.64353614828745,\n 43.53665716685947\n ],\n [\n -110.62349931818646,\n 43.55620738705895\n ],\n [\n -110.5972973095928,\n 43.598637460483474\n ],\n [\n -110.59883860421601,\n 43.62653567653447\n ],\n [\n -110.6520132687147,\n 43.62207283164909\n ],\n [\n -110.6897749869821,\n 43.60477617840215\n ],\n [\n -110.73216058911865,\n 43.56458411181504\n ],\n [\n -110.74680288803886,\n 43.517100606095084\n ],\n [\n -110.76067453964718,\n 43.50480466552287\n ],\n [\n -110.78225266437141,\n 43.46790181387567\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","contact":"

Center Director, Eastern Ecological Science Center
U.S. Geological Survey
12100 Beech Forest Rd., Ste 4039
Laurel, MD 20708-4039

Contact Pubs Warehouse

","tableOfContents":"","publishingServiceCenter":{"id":10,"text":"Baltimore PSC"},"publishedDate":"2025-01-08","noUsgsAuthors":false,"publicationDate":"2025-01-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Cook, Jonathan D. 0000-0001-7000-8727","orcid":"https://orcid.org/0000-0001-7000-8727","contributorId":291411,"corporation":false,"usgs":true,"family":"Cook","given":"Jonathan","middleInitial":"D.","affiliations":[{"id":50464,"text":"Eastern Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":919494,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McEachran, Margaret C. 0000-0002-8390-451X","orcid":"https://orcid.org/0000-0002-8390-451X","contributorId":346536,"corporation":false,"usgs":false,"family":"McEachran","given":"Margaret C.","affiliations":[{"id":36396,"text":"University of Massachusetts","active":true,"usgs":false}],"preferred":false,"id":919495,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cotterill, Gavin G. 0000-0002-1408-778X","orcid":"https://orcid.org/0000-0002-1408-778X","contributorId":346534,"corporation":false,"usgs":true,"family":"Cotterill","given":"Gavin","middleInitial":"G.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":919496,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cole, Eric K 0000-0002-2229-5853","orcid":"https://orcid.org/0000-0002-2229-5853","contributorId":248406,"corporation":false,"usgs":false,"family":"Cole","given":"Eric","email":"","middleInitial":"K","affiliations":[{"id":6654,"text":"USFWS","active":true,"usgs":false}],"preferred":false,"id":919497,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70268241,"text":"70268241 - 2025 - Methylmercury in subarctic amphibians: Environmental gradients, bioaccumulation, and estimated flux","interactions":[],"lastModifiedDate":"2025-06-18T14:27:34.540545","indexId":"70268241","displayToPublicDate":"2025-01-08T09:23:16","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":17090,"text":"Environmental Toxicology & Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Methylmercury in subarctic amphibians: Environmental gradients, bioaccumulation, and estimated flux","docAbstract":"

Rapid warming in polar regions is causing large changes to ecosystems, including altering environmentally available mercury (Hg). Although subarctic freshwater systems have simple vertebrate communities, Hg in amphibians remains unexplored. We measured total Hg (THg) in wetland sediments and methylmercury (MeHg) in multiple life-stages (eggs to adults) of wood frogs (Rana sylvatica) and larval boreal chorus frogs (Pseudacris maculata) from up to 25 wetlands near Churchill, Manitoba (Canada), during the summers of 2018–2019. We used egg mass counts for wood frogs from 24 wetlands (2015–2019) and per-ovum MeHg concentrations to estimate site-level MeHg flux by metamorphs from wetlands to the terrestrial environment. Total Hg in wetland sediment was unrelated to MeHg concentrations of amphibian larvae, but sediment THg increased with from coastal tundra vegetation to inland boreal forests. Methylmercury concentrations of wood frog eggs (geometric mean = 35.9; range: 6.7–77.9 ng/g dry wt) exceeded previous reports for amphibians, including from sites contaminated by industrial sources of Hg. Methylmercury concentrations of adult wood frogs (298.9 ng/g dry wt) were also higher than that for frogs included in a recent assessment of MeHg in amphibians across the contiguous United States. Within wetlands, MeHg concentrations of wood frog larvae were strongly correlated with MeHg concentrations in eggs earlier in the summer, and concentrations increased with each life stage. We estimate there would have been 1,971.8–3,286.4 ng MeHg exported from wetlands by wood frog metamorphs, which is 3.4–5.6 times more MeHg than inputted by eggs. Collectively, these data provide an initial assessment of Hg concentrations, body burdens, and dynamics in subarctic food webs that are expected to experience large changes from climate warming.

","language":"English","publisher":"Oxford Academic","doi":"10.1093/etojnl/vgae064","usgsCitation":"Hossack, B., Davenport, J., Mattison, C., Eagles-Smith, C., Fishback, L., Tornabene, B.J., and Smalling, K., 2025, Methylmercury in subarctic amphibians: Environmental gradients, bioaccumulation, and estimated flux: Environmental Toxicology & Chemistry, v. 44, no. 3, p. 698-709, https://doi.org/10.1093/etojnl/vgae064.","productDescription":"12 p.","startPage":"698","endPage":"709","ipdsId":"IP-170482","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":491311,"rank":1,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P14UMZWU","text":"USGS data release","linkHelpText":"Mercury concentrations in amphibian tissues and egg masses, fish tissues and sediment in subarctic, freshwater systems near Churchill, Manitoba, 2015-2019"},{"id":490984,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/etojnl/vgae064","text":"Publisher Index Page"},{"id":490908,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","state":"Manitoba","city":"Churchill","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -94.40520702649708,\n 58.83132452633623\n ],\n [\n -94.40520702649708,\n 58.118858293984744\n ],\n [\n -93.02201690701777,\n 58.118858293984744\n ],\n [\n -93.02201690701777,\n 58.83132452633623\n ],\n [\n -94.40520702649708,\n 58.83132452633623\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"44","issue":"3","noUsgsAuthors":false,"publicationDate":"2025-01-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Hossack, Blake R. 0000-0001-7456-9564","orcid":"https://orcid.org/0000-0001-7456-9564","contributorId":229347,"corporation":false,"usgs":true,"family":"Hossack","given":"Blake R.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":940571,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davenport, Jon M.","contributorId":126727,"corporation":false,"usgs":false,"family":"Davenport","given":"Jon M.","affiliations":[{"id":6583,"text":"University of Montana, Division of Biological Sciences, Missoula, MT, USA 59812","active":true,"usgs":false}],"preferred":false,"id":940572,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mattison, C. 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Box 610, Churchill, Manitoba, R0B 0E0, Canada","active":true,"usgs":false}],"preferred":false,"id":940575,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Tornabene, Brian J. 0000-0002-2348-3119","orcid":"https://orcid.org/0000-0002-2348-3119","contributorId":303977,"corporation":false,"usgs":true,"family":"Tornabene","given":"Brian","email":"","middleInitial":"J.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":940576,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Smalling, Kelly 0000-0002-1214-4920","orcid":"https://orcid.org/0000-0002-1214-4920","contributorId":221234,"corporation":false,"usgs":true,"family":"Smalling","given":"Kelly","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":940577,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70262815,"text":"70262815 - 2025 - The importance of peripheral populations in the face of novel environmental change","interactions":[],"lastModifiedDate":"2025-01-23T15:17:08.044937","indexId":"70262815","displayToPublicDate":"2025-01-08T09:10:49","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":18342,"text":"Proceedings of the Royal Society B, Biological Sciences","active":true,"publicationSubtype":{"id":10}},"title":"The importance of peripheral populations in the face of novel environmental change","docAbstract":"

Anthropogenically driven environmental change has imposed substantial threats on biodiversity, including the emergence of infectious diseases that have resulted in declines of wildlife globally. In response to pathogen invasion, maintaining diversity within host populations across heterogenous environments is essential to facilitating species persistence. White-nose syndrome is an emerging fungal pathogen that has caused mass mortalities of hibernating bats across North America. However, in the northeast, peripheral island populations of the endangered northern myotis (Myotis septentrionalis) appear to be persisting despite infection while mainland populations in the core of the species range have experienced sharp declines. Thus, this study investigated host and environmental factors that may contribute to divergent population responses. We compared patterns of pathogen exposure and infection intensity between populations and documented the environmental conditions and host activity patterns that may promote survival despite disease invasion. For island populations, we found lower prevalence and less severe infections, possibly due to a shorter hibernation duration compared to the mainland, which may reduce the time for disease progression. The coastal region of the northern myotis range may serve as habitat refugia that enables this species to persist despite pathogen exposure; however, conservation efforts could be critical to supporting species survival in the long term.

","language":"English","publisher":"The Royal Society Publishing","doi":"10.1098/rspb.2024.2331","usgsCitation":"Hoff, S., Hoyt, J.R., Langwig, K.E., Johnson, L., Olson, E., O’Dell, D., Pendergast, C., Herzog, C.J., Parise, K.L., Foster, J.T., and Turner, W.C., 2025, The importance of peripheral populations in the face of novel environmental change: Proceedings of the Royal Society B, Biological Sciences, v. 292, no. 2038, 20242331, 12 p., https://doi.org/10.1098/rspb.2024.2331.","productDescription":"20242331, 12 p.","ipdsId":"IP-156558","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":481031,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1098/rspb.2024.2331","text":"Publisher Index Page"},{"id":480986,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"292","issue":"2038","noUsgsAuthors":false,"publicationDate":"2025-01-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Hoff, Samantha","contributorId":342962,"corporation":false,"usgs":false,"family":"Hoff","given":"Samantha","email":"","affiliations":[{"id":81956,"text":"University at Albany","active":true,"usgs":false}],"preferred":false,"id":924873,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hoyt, Joseph R.","contributorId":201314,"corporation":false,"usgs":false,"family":"Hoyt","given":"Joseph","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":924874,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Langwig, Kate E.","contributorId":127717,"corporation":false,"usgs":false,"family":"Langwig","given":"Kate","email":"","middleInitial":"E.","affiliations":[{"id":6949,"text":"University of California, Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":924875,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnson, Luanne","contributorId":342965,"corporation":false,"usgs":false,"family":"Johnson","given":"Luanne","affiliations":[{"id":81959,"text":"BiodiversityWorks","active":true,"usgs":false}],"preferred":false,"id":924876,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Olson, Elizabeth","contributorId":348920,"corporation":false,"usgs":false,"family":"Olson","given":"Elizabeth","affiliations":[{"id":83415,"text":"Biodiversity Works","active":true,"usgs":false}],"preferred":false,"id":924877,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"O’Dell, Danielle","contributorId":342967,"corporation":false,"usgs":false,"family":"O’Dell","given":"Danielle","email":"","affiliations":[{"id":81960,"text":"Nantucket Conservation Foundation","active":true,"usgs":false}],"preferred":false,"id":924878,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pendergast, Casey","contributorId":348918,"corporation":false,"usgs":false,"family":"Pendergast","given":"Casey","affiliations":[{"id":81956,"text":"University at Albany","active":true,"usgs":false}],"preferred":false,"id":924879,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Herzog, Carl J.","contributorId":342970,"corporation":false,"usgs":false,"family":"Herzog","given":"Carl","email":"","middleInitial":"J.","affiliations":[{"id":13678,"text":"New York State Department of Environmental Conservation","active":true,"usgs":false}],"preferred":false,"id":924880,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Parise, Katy L.","contributorId":201310,"corporation":false,"usgs":false,"family":"Parise","given":"Katy","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":924881,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Foster, Jeffrey T.","contributorId":177905,"corporation":false,"usgs":false,"family":"Foster","given":"Jeffrey","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":924882,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Turner, Wendy Christine 0000-0002-0302-1646","orcid":"https://orcid.org/0000-0002-0302-1646","contributorId":287053,"corporation":false,"usgs":true,"family":"Turner","given":"Wendy","email":"","middleInitial":"Christine","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":924883,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70271497,"text":"70271497 - 2025 - Cooling perspectives on the risk of pathogenic viruses from thawing permafrost","interactions":[],"lastModifiedDate":"2025-09-18T14:08:36.951238","indexId":"70271497","displayToPublicDate":"2025-01-08T09:04:43","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":17805,"text":"mSystems","active":true,"publicationSubtype":{"id":10}},"title":"Cooling perspectives on the risk of pathogenic viruses from thawing permafrost","docAbstract":"

Climate change is inducing wide-scale permafrost thaw in the Arctic and subarctic, triggering concerns that long-dormant pathogens could reemerge from the thawing ground and initiate epidemics or pandemics. Viruses, as opposed to bacterial pathogens, garner particular interest because outbreaks cannot be controlled with antibiotics, though the effects can be mitigated by vaccines and newer antiviral drugs. To evaluate the potential hazards posed by viral pathogens emerging from thawing permafrost, we review information from a diverse range of disciplines. This includes efforts to recover infectious virus from human remains, studies on disease occurrence in polar animal populations, investigations into viral persistence and infectivity in permafrost, and assessments of human exposure to the enormous viral diversity present in the environment. Based on currently available knowledge, we conclude that the risk posed by viruses from thawing permafrost is no greater than viruses in other environments such as temperate soils and aquatic systems.

","language":"English","publisher":"American Society for Microbiology","doi":"10.1128/msystems.00042-24","usgsCitation":"Mackelprang, R., Barbato, R.A., Ramey, A.M., Schutte, U.M., and Waldrop, M., 2025, Cooling perspectives on the risk of pathogenic viruses from thawing permafrost: mSystems, v. 10, e00042-24, 13 p., https://doi.org/10.1128/msystems.00042-24.","productDescription":"e00042-24, 13 p.","ipdsId":"IP-171519","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":495741,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1128/msystems.00042-24","text":"Publisher Index Page"},{"id":495705,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Mackelprang, Rachel","contributorId":200882,"corporation":false,"usgs":false,"family":"Mackelprang","given":"Rachel","email":"","affiliations":[{"id":7080,"text":"California State University, Northridge","active":true,"usgs":false}],"preferred":false,"id":948965,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barbato, Robyn A.","contributorId":361231,"corporation":false,"usgs":false,"family":"Barbato","given":"Robyn","middleInitial":"A.","affiliations":[{"id":33087,"text":"Cold Regions Research and Engineering Laboratory","active":true,"usgs":false}],"preferred":false,"id":948966,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ramey, Andrew M. 0000-0002-3601-8400 aramey@usgs.gov","orcid":"https://orcid.org/0000-0002-3601-8400","contributorId":1872,"corporation":false,"usgs":true,"family":"Ramey","given":"Andrew","email":"aramey@usgs.gov","middleInitial":"M.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":948967,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schutte, Ursel M. E. 0000-0002-7201-786X","orcid":"https://orcid.org/0000-0002-7201-786X","contributorId":328926,"corporation":false,"usgs":false,"family":"Schutte","given":"Ursel","email":"","middleInitial":"M. E.","affiliations":[{"id":6752,"text":"University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":948968,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Waldrop, Mark 0000-0003-1829-7140","orcid":"https://orcid.org/0000-0003-1829-7140","contributorId":216758,"corporation":false,"usgs":true,"family":"Waldrop","given":"Mark","affiliations":[],"preferred":true,"id":948969,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70262007,"text":"70262007 - 2025 - Diverging trends in nitrate and phosphorus loads and yields across Illinois watersheds, 1997–2022","interactions":[],"lastModifiedDate":"2025-01-10T15:05:18.2683","indexId":"70262007","displayToPublicDate":"2025-01-08T09:02:22","publicationYear":"2025","noYear":false,"publicationType":{"id":27,"text":"Preprint"},"publicationSubtype":{"id":32,"text":"Preprint"},"seriesTitle":{"id":18346,"text":"EarthArXiv","active":true,"publicationSubtype":{"id":32}},"title":"Diverging trends in nitrate and phosphorus loads and yields across Illinois watersheds, 1997–2022","docAbstract":"

Illinois is a major contributor of nutrients to the northern Gulf of Mexico. As such, the State of Illinois initiated efforts to curb nutrient runoff over the last several decades. To evaluate progress towards these reductions, water-quality data were used to estimate incremental loads and yields of nitrate plus nitrite (NO3) and total phosphorus (TP) from 1997–2022 for 49 Illinois watersheds, defined using eight-digit hydrologic unit codes (HUC8), draining to the Mississippi River Basin. To estimate changes in NO3 and TP loads, recent loads from the period 2018 through 2022 were compared to baseline loads from 1997 through 2011. Nonpoint and point source loads, dissolved phosphorus (DP) loads, and water yields were also estimated. The sum of the incremental NO3 loads from the 49 HUC8s decreased 9% despite a 19% increase in water yield. Much of this decline occurred in HUC8s that had NO3 yields greater than 17 pounds per acre per year (lbs/acre/yr) during a 1997–2011 baseline period. The sum of all incremental HUC8 TP loads increased 25% despite a 27% reduction in point source discharge. Loads and yields were substantially larger for both NO3 and TP in the Chicago area. Outside the Chicago area, central and northern Illinois had higher NO3 yields than southern Illinois and a reverse pattern for TP where higher yields occur in southern Illinois. Nonpoint sources made up an estimated 82% and 78% of the NO3 and TP yields, respectively, across the HUC8s. In general, point source yields have mostly decreased over time, while nonpoint source yields varied depending on location and reflect the changes in the total yield.

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F.","contributorId":189364,"corporation":false,"usgs":false,"family":"McIsaac","given":"Gregory","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":922674,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70261943,"text":"70261943 - 2025 - Common Terns (Sterna hirundo) use of a staging site in the Chesapeake Bay","interactions":[],"lastModifiedDate":"2025-01-14T15:58:41.105301","indexId":"70261943","displayToPublicDate":"2025-01-08T08:31:42","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2898,"text":"Northeastern Naturalist","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Common Terns (Sterna hirundo) use of a staging site in the Chesapeake Bay","title":"Common Terns (Sterna hirundo) use of a staging site in the Chesapeake Bay","docAbstract":"

In 2021, we initiated fieldwork to assess the relative importance of a staging area for Sterna hirundo (Common Tern) at a pier at the confluence of the Patuxent River and Chesapeake Bay, MD. During the post-breeding periods of 2021 through 2023, we resighted 378 banded Common Terns at this staging area, with individuals originating from 6 breeding colonies. Most banded individuals were from Poplar Island, a major nesting site 50 km north of the pier, with up to 37% of that island's annual hatch-year population observed at this staging area. Additionally, biologists have previously observed staging terns at this site, suggesting these observations do not reflect a change in the species' behavior within the region. Cumulatively, our data suggest that this habitat acts as an important staging area for the Chesapeake Bay's Common Tern population, particularly for those nesting on Poplar Island.

","language":"English","publisher":"Eagle Hill Institute","doi":"10.1656/045.031.0413","usgsCitation":"Springer, B., Sullivan, J.D., Prosser, D.J., Rambo, K., and Price, J., 2025, Common Terns (Sterna hirundo) use of a staging site in the Chesapeake Bay: Northeastern Naturalist, v. 31, no. 4, p. 555-564, https://doi.org/10.1656/045.031.0413.","productDescription":"10 p.","startPage":"555","endPage":"564","ipdsId":"IP-169973","costCenters":[{"id":50464,"text":"Eastern Ecological Science Center","active":true,"usgs":true}],"links":[{"id":466219,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maryland","otherGeospatial":"Chesapeake Bay, Patuxent River, Poplar Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -76.47539729451665,\n 38.83723086335985\n ],\n [\n -76.47539729451665,\n 38.64818684791629\n ],\n [\n -76.33733194779678,\n 38.64818684791629\n ],\n [\n -76.33733194779678,\n 38.83723086335985\n ],\n [\n -76.47539729451665,\n 38.83723086335985\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"31","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Springer, Benjamin","contributorId":347743,"corporation":false,"usgs":false,"family":"Springer","given":"Benjamin","affiliations":[{"id":52128,"text":"St. Mary’s College of Maryland","active":true,"usgs":false}],"preferred":false,"id":922361,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sullivan, Jeffery D. 0000-0002-9242-2432","orcid":"https://orcid.org/0000-0002-9242-2432","contributorId":265822,"corporation":false,"usgs":true,"family":"Sullivan","given":"Jeffery","email":"","middleInitial":"D.","affiliations":[{"id":50464,"text":"Eastern Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":922362,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Prosser, Diann J. 0000-0002-5251-1799 dprosser@usgs.gov","orcid":"https://orcid.org/0000-0002-5251-1799","contributorId":2389,"corporation":false,"usgs":true,"family":"Prosser","given":"Diann","email":"dprosser@usgs.gov","middleInitial":"J.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":922363,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rambo, Kyle","contributorId":347745,"corporation":false,"usgs":false,"family":"Rambo","given":"Kyle","affiliations":[{"id":83224,"text":"Naval Air Station","active":true,"usgs":false}],"preferred":false,"id":922364,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Price, J. Jordan","contributorId":347746,"corporation":false,"usgs":false,"family":"Price","given":"J. Jordan","affiliations":[{"id":52128,"text":"St. Mary’s College of Maryland","active":true,"usgs":false}],"preferred":false,"id":922365,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70268255,"text":"70268255 - 2025 - Factors regulating the potential for freshwater mineral soil wetlands to function as natural climate solutions","interactions":[],"lastModifiedDate":"2025-06-18T15:14:39.891801","indexId":"70268255","displayToPublicDate":"2025-01-08T08:09:36","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Factors regulating the potential for freshwater mineral soil wetlands to function as natural climate solutions","docAbstract":"

There are increasing global efforts and initiatives aiming to tackle climate change and mitigate its impacts via natural climate solutions (NCS). Wetlands have been considered effective NCS given their capacity to sequester and retain atmospheric carbon dioxide (CO2) while also providing a myriad of other ecosystem functions that can assist in mitigating the impacts of climate change. However, wetlands have a dual impact on climate, influencing the atmospheric concentrations of both CO2 and methane (CH4). The cooling effect associated with wetland CO2 sequestration can be counterbalanced by the warming effect caused by CH4 emissions from wetlands. The relative ability of wetlands to sequester CO2 versus emit CH4 is dependent on a suite of interacting physical, chemical, and biological factors, making it difficult to determine if/which wetlands are considered important NCS. The fact that wetlands are embedded in landscapes with surface and subsurface hydrological connections to other wetlands (i.e., wetlandscapes) that flow over and through geochemically active soils and sediments adds a new layer of complexity and poses further challenges to understanding wetland carbon sequestration and greenhouse gas fluxes at large spatial scales. Our review demonstrates how additional scientific advances are required to understand the driving mechanisms associated with wetland carbon cycling under different environmental conditions. It is vital to understand wetland functionality at both wetland and wetlandscape scales to effectively implement wetlands as NCS to maximize ecological, social, and economic benefits.

","language":"English","publisher":"Springer Nature","doi":"10.1007/s13157-024-01893-6","usgsCitation":"Ma, S., Mistry, P., Badiou, P., Bansal, S., and Creed, I., 2025, Factors regulating the potential for freshwater mineral soil wetlands to function as natural climate solutions: Wetlands, v. 45, 11, 26 p., https://doi.org/10.1007/s13157-024-01893-6.","productDescription":"11, 26 p.","ipdsId":"IP-168393","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":491015,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s13157-024-01893-6","text":"Publisher Index Page"},{"id":490913,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","noUsgsAuthors":false,"publicationDate":"2025-01-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Ma, Shizhou","contributorId":332984,"corporation":false,"usgs":false,"family":"Ma","given":"Shizhou","email":"","affiliations":[],"preferred":false,"id":940612,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mistry, Purbasha","contributorId":332986,"corporation":false,"usgs":false,"family":"Mistry","given":"Purbasha","email":"","affiliations":[],"preferred":false,"id":940613,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Badiou, Pascal","contributorId":357028,"corporation":false,"usgs":false,"family":"Badiou","given":"Pascal","affiliations":[],"preferred":false,"id":940614,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bansal, Sheel 0000-0003-1233-1707 sbansal@usgs.gov","orcid":"https://orcid.org/0000-0003-1233-1707","contributorId":167295,"corporation":false,"usgs":true,"family":"Bansal","given":"Sheel","email":"sbansal@usgs.gov","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":940615,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Creed, Irena F.","contributorId":204051,"corporation":false,"usgs":false,"family":"Creed","given":"Irena F.","affiliations":[{"id":13255,"text":"University of Western Ontario","active":true,"usgs":false}],"preferred":false,"id":940616,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70261984,"text":"sir20245120 - 2025 - Groundwater-storage change in the north Phoenix aquifer, Arizona, 2020–23","interactions":[],"lastModifiedDate":"2025-01-08T15:06:42.999733","indexId":"sir20245120","displayToPublicDate":"2025-01-07T14:39:14","publicationYear":"2025","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2024-5120","displayTitle":"Groundwater-Storage Change in the North Phoenix Aquifer, Arizona, 2020–23","title":"Groundwater-storage change in the north Phoenix aquifer, Arizona, 2020–23","docAbstract":"

The city of Phoenix, Arizona, relies primarily on surface water for municipal water supply. The city also maintains wells to withdraw groundwater, particularly in times of drought and reduced surface-water supply, and to recharge groundwater when excess surface water is available. As of 2023, withdrawals from the aquifer in the northeastern part of the city are a small volume of water, less than 3,000 acre-feet in most years. Each year a similar volume of water is recharged through injection wells. The withdrawal wells are permitted to produce in total more than 20,000 acre-feet per year; increased pumping could lead to future groundwater-storage declines.

To better understand groundwater-storage change in the north Phoenix aquifer, a repeat microgravity monitoring network was established in 2020. Measurements of changes in Earth’s gravity provide a direct, non-invasive measurement of subsurface mass change. Groundwater-storage changes were small during the 2020–23 study period, consistent with the relatively small volumes of pumping and recharge. Groundwater levels measured in monitoring wells were stable or increased slightly during this period, although the number of monitoring wells within the area of the gravity monitoring network is sparse. In total, about 15,000 acre-feet of water were pumped and 31,000 acre-feet recharged through injection in the north Phoenix aquifer during the 2020–22 period. Within the monitored area, groundwater storage increased by a small amount, about 1,000 acre-feet, in 2020, and decreased by a larger amount, about 6,000 acre-feet, each year in 2021 and 2022. Storage decreased at 89 of 102 stations from 2020 to 2023. Groundwater-storage decreases greater than the volume of net pumping indicate down-gradient subflow from the aquifer is greater than recharge plus incoming subflow, drying of the unsaturated zone resulting from decreased land-surface recharge, or both.

At present (2023), the aquifer appears able to store and supply the relatively small amounts of water needed without excessive drawdown or harmful effects, such as land subsidence and surface inundation. If pumping or recharge increases in the future, the established repeat microgravity network is well suited to capture the spatial extent and magnitude of groundwater-storage changes in the aquifer.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20245120","collaboration":"Prepared in cooperation with the city of Phoenix Water Services","usgsCitation":"Kennedy, J.R., 2025, Groundwater-storage change in the north Phoenix aquifer, Arizona, 2020–23: U.S. Geological Survey Scientific Investigations Report 2024–5021, 18 p., https://doi.org/10.3133/sir20245120.","productDescription":"v, 18 p.","numberOfPages":"18","onlineOnly":"Y","ipdsId":"IP-160459","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":466450,"rank":3,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P96Q1OZG","text":"USGS data release","linkHelpText":"Repeat microgravity data from Phoenix, Arizona, 2020-2023"},{"id":465834,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2024/5120/covrthb.jpg"},{"id":465835,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2024/5120/sir20245120.pdf","text":"Report","size":"8 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Arizona","otherGeospatial":"North Phoenix aquifer","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -112.1,\n 33.8667\n ],\n [\n -112.1,\n 33.6\n ],\n [\n -111.8,\n 33.6\n ],\n [\n -111.8,\n 33.8667\n ],\n [\n -112.1,\n 33.8667\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","contact":"

Director,
Arizona Water Science Center
U.S. Geological Survey
520 N. Park Avenue
Tucson, AZ 85719

","tableOfContents":"","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"publishedDate":"2025-01-07","noUsgsAuthors":false,"publicationDate":"2025-01-07","publicationStatus":"PW","contributors":{"authors":[{"text":"Kennedy, Jeffrey R. 0000-0002-3365-6589 jkennedy@usgs.gov","orcid":"https://orcid.org/0000-0002-3365-6589","contributorId":176478,"corporation":false,"usgs":true,"family":"Kennedy","given":"Jeffrey","email":"jkennedy@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":922551,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70261849,"text":"sim3529 - 2025 - Map of topographic lineaments interpreted as recent surface ruptures along the Bennett Valley and Southern Maacama Fault Zones, Sonoma County, California","interactions":[],"lastModifiedDate":"2025-07-10T15:31:33.467921","indexId":"sim3529","displayToPublicDate":"2025-01-07T13:37:32","publicationYear":"2025","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":333,"text":"Scientific Investigations Map","code":"SIM","onlineIssn":"2329-132X","printIssn":"2329-1311","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"3529","displayTitle":"Map of Topographic Lineaments Interpreted As Recent Surface Ruptures Along the Bennett Valley and Southern Maacama Fault Zones, Sonoma County, California","title":"Map of topographic lineaments interpreted as recent surface ruptures along the Bennett Valley and Southern Maacama Fault Zones, Sonoma County, California","docAbstract":"

This study documents lidar-illuminated topographic lineaments interpreted as evidence of recent surface fault ruptures and surface ruptures related to distributed deformation along the Bennett Valley Fault Zone and the southernmost Maacama Fault Zone in the northern San Francisco Bay area (fig. 1, on map sheet). Together, these fault zones form a structural connection across a right stepover between the main Maacama Fault Zone and the Rodgers Creek Fault, overlapping principal strands of the San Andreas plate boundary system north of San Francisco Bay (figs. 1, 2, on map sheet) that accommodate about a quarter of the ~40 millimeters per year of regional dextral tectonic slip (Parsons and others, 2013).

Although much of the Bennett Valley Fault Zone is seismically active (McLaughlin and others, 2012; Sowers and others, 2010), only the north end of the fault zone (the “Spring Valley strand,” indicated on southern map panel of map sheet and labeled “D” in figure 2, on map sheet) was previously known to have youthful geomorphic expression and to displace Holocene deposits (McLaughlin and others, 2008; Sowers and others, 2010; Sowers and others, 2016). Holocene activity along the length of the Bennett Valley Fault Zone and southernmost Maacama Fault Zone, with possible implications for rupture propagation, continuity, and slip transfer, had not been identified. However, fault splays that project eastward from the Rodgers Creek Fault have been mapped and hypothesized to accommodate slip transfer to the Bennett Valley Fault Zone (Hecker and Randolph Loar, 2018). The generally subtle and distributed nature of surface-rupture evidence along the Bennett Valley and southernmost Maacama Fault Zones, and extensive vegetation cover, had left recent faulting previously unmapped along most of the zone.

The map presented here represents a new compilation of inferred surface-rupture features detected using high-resolution topographic lidar data from an airborne lidar survey of Sonoma County, California (OpenTopography, 2014). These data, which enable subtle topographic features to be discerned, indicate that recent (likely Holocene) surface ruptures extend throughout the Bennett Valley and southernmost Maacama Fault Zones.

The rupture-lineament map was created using a GIS (geographic information system) framework and is included herein as an image map at a scale of 1:36,000 and as digital datasets (included as supplemental information to this report). The mapping is intended to lay the groundwork for future studies designed to better characterize how plate-boundary slip is accommodated on this important and complex system of faults.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sim3529","usgsCitation":"Hecker, S., 2024, Map of topographic lineaments interpreted as recent surface ruptures along the Bennett Valley and Southern Maacama Fault Zones, Sonoma County, California: U.S. Geological Survey Scientific Investigations Map 3529, scale 1:36,000, pamphlet 5 p., https://doi.org/10.3133/sim3529.","productDescription":"Pamphlet: iv, 5 p.; 1 Sheet: 50.91 x 40.68 inches; Supplemental Information","numberOfPages":"5","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-143849","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":465535,"rank":3,"type":{"id":26,"text":"Sheet"},"url":"https://pubs.usgs.gov/sim/3529/sim3529_sheet.pdf","text":"Sheet 1","size":"8 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":465534,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sim/3529/sim3529_pamphlet.pdf","text":"Pamphlet","size":"2 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":465533,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sim/3529/covrthb.jpg"},{"id":465536,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/sim/3529/sim3529_supInfo.zip","text":"Supplemental Information","size":"1 MB","linkFileType":{"id":6,"text":"zip"}},{"id":492016,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_118275.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","county":"Sonoma County","otherGeospatial":"Bennett Valley and Southern Maacama fault zones","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -123.125,\n 39\n ],\n [\n -123.125,\n 37.375\n ],\n [\n -121.5,\n 37.375\n ],\n [\n -121.5,\n 39\n ],\n [\n -123.125,\n 39\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","contact":"

Earthquake Science Center
U.S. Geological Survey
350 N. Akron Road
Moffett Field, CA 94035

","tableOfContents":"","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"publishedDate":"2025-01-07","noUsgsAuthors":false,"publicationDate":"2025-01-07","publicationStatus":"PW","contributors":{"authors":[{"text":"Hecker, Suzanne 0000-0002-5054-372X","orcid":"https://orcid.org/0000-0002-5054-372X","contributorId":205568,"corporation":false,"usgs":true,"family":"Hecker","given":"Suzanne","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":922025,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70262003,"text":"70262003 - 2025 - Exploring management and environment effects on edge-of-field phosphorus losses with linear mixed models","interactions":[],"lastModifiedDate":"2025-03-25T15:53:43.357024","indexId":"70262003","displayToPublicDate":"2025-01-07T10:32:04","publicationYear":"2025","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Exploring management and environment effects on edge-of-field phosphorus losses with linear mixed models","docAbstract":"

Evaluating how weather, farm management, and soil conditions impact phosphorus (P) loss from agricultural sites is essential for improving our waterways in agricultural watersheds. In this study, rainfall characteristics, manure application timing, tillage, surface condition, and soil test phosphorus (STP) were analyzed to determine their effects on total phosphorus (TP) and dissolved phosphorus (DP) loss using 125 site-years of runoff data collected by the University of Wisconsin Discovery Farms and Discovery Farms Minnesota. Three linear mixed models (LMMs) were then used to evaluate the influence of those factors on TP and DP losses: (1) a model that included all runoff events, (2) manured sites only, and (3) precipitation events only. Results show that the timing of manure application relative to the timing of a runoff event only had a marginal association with P loads and concentrations, although the majority of the runoff events were collected after 10 days of manure application. Tillage was as influential factor, with greater DP loads and concentrations associated with no-till, especially during frozen conditions. Fields in this study had high STP values, but the model results only showed positive associations between DP load and DP flow-weighted mean concentration (FWMC) loss at the 0- to 15-cm depth. The precipitation event LMM (which included precipitation characteristics) was the model that resulted in the largest R2 value. While the predictive capacity of the LMMs was low, they did illuminate the relative importance of management and environmental variables on P loss, and can be used to guide future research on P loss in this region.

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