Distribution, abundance, and breeding activities of the Southwestern Willow Flycatcher at Marine Corps Base Camp Pendleton, California—2022 annual report
Scarlett L. Howell, Barbara E. Kus
2024, Open-File Report 2023-1080
Executive SummarySurveys for the endangered Southwestern Willow Flycatcher (Empidonax traillii extimus) were done at Marine Corps Base Camp Pendleton (MCBCP or “Base”), California, between May 9 and July 20, 2022. All of MCBCP’s historically occupied riparian habitat (core survey area) was surveyed for flycatchers in 2022. None of the non-core...
Distribution, abundance, and breeding activities of the Southwestern Willow Flycatcher at Marine Corps Base Camp Pendleton, California—2021 annual report
Scarlett L. Howell, Barbara E. Kus
2024, Open-File Report 2024-1039
Executive SummaryThe purpose of this report is to provide the Marine Corps with an annual summary of abundance, breeding activity, demography, and habitat use of the endangered Southwestern Willow Flycatcher (Empidonax traillii extimus) at Marine Corps Base Camp Pendleton (MCBCP). Surveys for the flycatcher were completed at MCBCP between...
Hydrogeologic framework and extent of saltwater intrusion in Kings, Queens, and Nassau Counties, Long Island, New York
Frederick Stumm, Jason S. Finkelstein, John Williams, Andrew D. Lange
2024, Scientific Investigations Report 2024-5048
In 2016, the U.S. Geological Survey began a multiyear cooperative study with the New York State Department of Environmental Conservation to evaluate the sustainability of Long Island’s sole-source aquifer system through hydrogeologic mapping, compilation of groundwater chloride concentrations, and groundwater flow modeling. In the initial phase of the islandwide study,...
Simulation of groundwater flow in the Long Island, New York regional aquifer system for pumping and recharge conditions from 1900 to 2019
Donald A. Walter, Kalle Jahn, John P. Masterson, Sarken E. Dressler, Jason S. Finkelstein, Monti
2024, Scientific Investigations Report 2024-5044
The U.S. Geological Survey has developed a transient, groundwater-flow model that simulates hydrologic conditions in the Long Island aquifer system as part of an ongoing (since 2016) multiyear, cooperative investigation with the New York State Department of Environmental Conservation. The goals of this investigation are to assist stakeholders and resource...
Comparison of seven DNA metabarcoding sampling methods to assess diet in a large avian predator
Neil Paprocki, Shannon Blair, Courtney J. Conway, Jennifer R. Adams, Stacey A. Nerkowski, Jeff W Kidd, Lisette Waits
2024, Environmental DNA (6)
DNA metabarcoding is a rapidly advancing tool for diet assessment in wildlife ecology. Studies have used a variety of field collection methods to evaluate diet; however, there is a pressing need to understand the differences among sampling methods and the downstream inferential consequences they may have on our ability to...
Landscape-scale modeling to forecast fluvial-aeolian sediment connectivity in river valleys
Alan Kasprak, Joel B. Sankey, Joshua Caster
2024, Geophysical Research Letters (51)
Sedimentary landforms on Earth and other planetary bodies are built through scour, transport, and deposition of sediment. Sediment connectivity refers to the hypothesis that pathways of sediment transport do not occur in isolation, but rather are mechanistically linked. In dryland river systems, one such example of sediment connectivity is the transport of...
Wildlife health capacity enhancement in Thailand through the World Organisation for Animal Health Twinning Program
Sarin Suwanpakdee, Nareerat Sangkachai, Anuwat Wiratsudakul, Witthawat Wiriyarat, Walasinee Sakcamduang, Peerawat Wongluechai, Choenkwan Pabutta, Ladawan Sariya, Waruja Korkijthamkul, David S. Blehert, C. LeAnn White, Daniel P. Walsh, Craig Stephen, Parntep Ratanakorn, Jonathan M. Sleeman
2024, Frontiers in Veterinary Science (11)
There is an increasing need for robust wildlife health programs that provide surveillance and management for diseases in wildlife and wild aquatic populations to manage associated risks. This paper illustrates the value of a systematic method to enhancing wildlife health programs. The U.S. Geological Survey and Mahidol University, Faculty of...
A conterminous United States–Wide validation of relative tidal elevation products
Justine Annaliese Neville, Glenn R. Guntenspergen, James Grace, Michael Osland, Bogdan Chivoiu
2024, Estuaries and Coasts (47) 2227-2237
Recent large-scale spatial products have been developed to assess wetland position in the tidal frame, but nationwide comparisons and validations are missing for these products. Wetland position within the tidal frame is a commonly used characteristic to compare wetlands across biogeomorphic gradients and factors heavily into...
Uncertainty and spatial correlation in station measurements for mb magnitude estimation
William L. Yeck, Adam T. Ringler, David R. Shelly, Paul S. Earle, Harley M. Benz, David C. Wilson
2024, The Seismic Record (3) 194-203
The body‐wave magnitude () is a long‐standing network‐averaged, amplitude‐based magnitude used to estimate the magnitude of seismic sources from teleseismic observations. The U.S. Geological Survey National Earthquake Information Center (NEIC) relies on in its global real‐time earthquake monitoring mission. Although waveform modeling‐based moment magnitudes are the modern standard to...
Declines and shifts in morphological diversity of ciscoes (Coregonus spp.) in lakes Huron and Michigan, 1917–2019
Paul W. Fedorowicz, Yu-Chun Kao, Amanda Susanne Ackiss, Katie Victoria Anweiler, Andrew Edgar Honsey
2024, Canadian Journal of Fisheries and Aquatic Sciences (81) 1292-1304
Ciscoes (Coregonus spp.) were historically abundant and ecologically important in Laurentian Great Lakes ecosystems. Despite well-documented declines in their abundance and taxonomic diversity, declines in morphological diversity remain understudied. This knowledge gap is especially pertinent for lakes Michigan and Huron, which have each lost six of eight historical...
Hydrogeologic conceptual model of groundwater occurrence and brine discharge to the Dolores River in the Paradox Valley, Montrose County, Colorado
Suzanne S. Paschke, M. Alisa Mast, Philip M. Gardner, Connor P. Newman, Kenneth R. Watts
2024, Scientific Investigations Report 2023-5094
Salinity, or total dissolved solids (TDS), of the Colorado River is a major concern in the southwestern United States where the river provides water to about 40 million people for municipal and industrial use and is used to irrigate about 5.5 million acres of land. Much of the salinity in...
Simulation of groundwater flow and brine discharge to the Dolores River in the Paradox Valley, Montrose County, Colorado
Charles E. Heywood, Suzanne S. Paschke, M. Alisa Mast, Kenneth R Watts
2024, Scientific Investigations Report 2024-5038
Salinity, or total dissolved solids (TDS), of the Colorado River affects agricultural, municipal, and industrial water users and is an important concern in the Western United States. In the Paradox Valley of southwestern Colorado, natural discharge of sodium-chloride brine to the Dolores River from the underlying core of a salt-valley...
A unified approach to long-term population monitoring of grizzly bears in the Greater Yellowstone Ecosystem
Matthew J. Gould, Justin Clapp, Mark A. Haroldson, Cecily M. Costello, J. Joshua Nowak, Hans Martin, Michael Ebinger, Daniel D. Bjornlie, Daniel Thompson, Justin A. Dellinger, Matthew Mumma, Paul Lukacs, Frank T. van Manen
2024, Global Ecology and Conservation (54)
Long-term wildlife research and monitoring programs strive to maintain consistent data collections and analytical methods. Incorporating new techniques is important but can render data sets incongruent and limit their potential to discern trends in demographic parameters. Integrated population models (IPMs) can address these limitations by combining data sources that may...
Skill assessment of a total water level and coastal change forecast during the landfall of a hurricane
Justin J. Birchler, Margaret L. Palmsten, Kara S. Doran, Sharifa Karwandyar, Joshua Michael Pardun, Elora M. Oades, Ryan P. Mulligan, Eli Sawyer Whitehead-Zimmers
2024, Coastal Engineering (193)
The Total Water Level and Coastal Change Forecast (TWL&CC Forecast) provides coastal communities with 6-day notice of potential elevated water levels and coastal change (i.e., dune erosion, overwash, or inundation) on sandy beaches that threatens safety, infrastructure, or resources. This continuously operating model provides hourly information for select regions along...
Crystal resorption as a driver for mush maturation: An experimental investigation
Martin F. Mangler, Madeleine C.S. Humphreys, Alexander A. Iveson, Kari M. Cooper, Michael A. Clynne, Amanda Lindoo, Richard A. Brooker, Fabian B. Wadsworth
2024, Journal of Petrology (65)
The thermal state of a magma reservoir controls its physical and rheological properties: at storage temperatures close to the liquidus, magmas are dominated by melt and therefore mobile, while at lower temperatures, magmas are stored as a rheologically locked crystal network with interstitial melt (crystal mush). Throughout the lifetime of...
Combined high rates of alternative breeding strategies unexpectedly found among populations of a solitary nesting raptor
Robert N. Rosenfield, Sarah A. Sonsthagen, William E. Stout, Timothy G. Driscoll, Andrew C. Stewart, Paul N. Frater, Sandra L. Talbot
2024, Ecology and Evolution (14)
Social monogamy is the prevalent mating system in birds, but alternative strategies of extra-pair paternity (EPP) and conspecific brood parasitism (CBP) occur in many species. Raptors are virtually absent in discussions of broad taxonomic reviews regarding EPP and CBP likely because these strategies are mostly absent or at low frequency;...
Predicting the effects of solar energy development on plants and wildlife in the Desert Southwest, United States
Claire C Karban, Jeffrey E. Lovich, Steven Mark Grodsky, Seth M. Munson
2024, Renewable & Sustainable Energy Reviews (RSER) (205)
Utility-scale solar energy (USSE) is rapidly expanding and expected to compose the largest source of renewable-generated electricity in the United States and globally over the coming decades. Lands in the hot Desert Southwest (Chihuahuan, Mojave, Sonoran, and San Joaquin...
Abiotic and demographic drivers of flea parasitism on deer mice in a recovering mixed-conifer forest a decade postfire
Colton J. Padilla, Jessica T. Martin, James W. Cain III, Matthew E. Gompper
2024, Journal of Parasitology (110) 375-385
With the intensity and frequency of wildfires increasing rapidly, the need to study the ecological effects of these wildfires is also growing. An understudied aspect of fire ecology is the effect fires have on parasite–host interactions, including ectoparasites that might be pathogen vectors. Although some studies have examined the impacts...
The relationship between maturation size and maximum tree size from tropical to boreal climates
Valentin Journe, Michał Bogdziewicz, Benoit Courbaud, Georges Kunstler, Tong Qiu, Marie-Claire Aravena Acuña, Davide Ascoli, Yves Bergeron, Daniel Berveiller, Thomas Boivin, Raul Bonal, Thomas Caignard, Maxime Cailleret, Rafael Calama, J. Julio Camarero, Chia-Hao Chang-Yang, Jerome Chave, Francesco Chianucci, Thomas Curt, Andrea Cutini, Adrian Das, Evangelia Daskalakou, Hendrik Davi, Nicolas Delpierre, Sylvain Delzon, Michael Dietze, Sergio Donoso Calderon, Laurent Dormont, Josep Maria Espelta, William Farfan-Rios, Michael Fenner, Jerry F. Franklin, Catherine A. Gehring, Gregory S. Gilbert, Georg Gratzer, Cathryn H. Greenberg, Arthur Guignabert, Qinfeng Guo, Andrew Hacket-Pain, Arndt Hampe, Qingmin Han, Mick E. Hanley, Janneke Hille Ris Lambers, Jan Holik, Kazuhiko Hoshizaki, Ines Ibanez, Jill F. Johnstone, Johannes M. H. Knops, Richard K. Kobe, Hiroko Kurokawa, Jonathan G. A. Lageard, Jalene LaMontagne, Mateusz Ledwon, Francois Lefevre, Theodor Leininger, Jean-Marc Limousin, James A. Lutz, Diana Macias, Anders Marell, Eliot J. B. McIntire, Emily V. Moran, Renzo Motta, Jonathan A. Myers, Thomas A. Nagel, Shoji Naoe, Mahoko Noguchi, Julian Norghauer, Michio Oguro, Jean-Marc Ourcival, Robert Parmenter, Ian Pearse, Ignacio M. Perez-Ramos, Lukasz Piechnik, Tomasz Podgorski, John Poulsen, Miranda D. Redmond, Chantal D. Reid, Pavel Samonil, C. Lane Scher, William H. Schlesinger, Barbara Seget, Shubhi Sharma, Mitsue Shibata, Miles Silman, Michael A. Steele, Nathan L. Stephenson, Jacob N. Straub, Samantha Sutton, Jennifer J. Swenson, Margaret Swift, Peter A. Thomas, Maria Uriarte, Giorgio Vacchiano, Amy V. Whipple, Thomas G. Whitham, S. Joseph Wright, Kai Zhu, Jess K. Zimmerman, Magdalena Zywiec, James S. Clark
2024, Ecology Letters (27) e14500
The fundamental trade-off between current and future reproduction has long been considered to result in a tendency for species that can grow large to begin reproduction at a proportionately larger size. Due to the prolonged time required to reach maturity, estimates of tree maturation size remain unavailable and we lack...
Testing tree-ring cellulose δ18O with water isotopes for Holocene lake δ18O interpretations in the central Rocky Mountains USA
Lesleigh Anderson, M. Alisa Mast, Rebecca Lynn Brice, Max Berkelhammer
2024, The Holocene
Stable isotopes of water preserved in geologic archives, primarily as oxygen (δ18O), have proven critical for documenting Earth’s climatic and hydrologic systems past and present. However, timescale differences of water isotope inputs to proxy systems and the signal embedded in long paleorecords often confound translation to observed hydroclimatic metrics. Here,...
In situ allelopathic expression by the invasive amphibious plant, Ludwigia hexapetala (water primrose) across habitat types, seasons, and salinities
Judith Z. Drexler, Michael Gross, Michelle L. Hladik, Bailey Morrison, Erin Hestir
2024, Biological Invasions (26) 3811-3828
Broad infestations of invasive, non-native vegetation have transformed wetlands around the world. Ludwigia hexapetala is a widespread, amphibious invasive plant with a creeping growth habit in open water and an erect growth habit in terrestrial habitats. In the upper San Francisco Estuary of California, L. hexapetala is increasingly terrestrializing into marshes and this expansion...
Global assessment of aquatic Isoëtes species ecology
Mattia M. Azzella, Alice Dalla Vecchia, Thomas Abeli, Janne Alahuhta, Victor B. Amoroso, Enric Ballesteros, Vincent Bertrin, Daniel Brunton, Alexander A. Bobrov, Cecilio Caldeira, Simona Ceschin, Elena V. Chemeris, Martina Ctvrtlikova, Mary de Winton, Esperanca Gacia, Oleg G. Grishutkin, Deborah Hofstra, Daniella Ivanova, Maria O. Ivanova, Nikita K. Konotop, Danelle M. Larson, Sara Magrini, Marit Mjelde, Olga A. Mochalova, Guilherme Oliveira, Ole Pedersen, Jovani B. de S. Pereira, Cristina Ribaudo, Maria Inmaculada Romero Bujan, Angelo Troia, Yulia S. Vinogradova, Polina A. Volkova, Daniel Zandonadi, Nadezhda V. Zueva, Rossano Bolpagni
2024, Freshwater Biology (69) 1420-1437
Isoëtes are iconic but understudied wetland plants, despite having suffered severe losses globally mainly because of alterations in their habitats. We therefore provide the first global ecological assessment of aquatic Isoëtes to identify their environmental requirements and to evaluate if taxonomically related species differ in their...
Report of the River Master of the Delaware River for the period December 1, 2016–November 30, 2017
Kendra L. Russell, William J. Andrews, Vincent J. DiFrenna, J. Michael Norris, Robert R. Mason, Jr.
2024, Open-File Report 2024-1022
Executive SummaryA Decree of the Supreme Court of the United States, entered June 7, 1954 (New Jersey v. New York, 347 U.S. 995), established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes the diversion of water from the Delaware River Basin and...
Status and performance of the ShakeAlert® earthquake early warning system: 2019-2023
A.I. Lux, Deborah Smith, M. Böse, Jeffrey J. McGuire, Jessie K. Saunders, Minh Huynh, I. Stubailo, Jennifer R Andrews, G. Lotto, B. Crowell, S. Crane, R. M. Allen, Douglas D. Given, R. Hartog, T. Heaton, A. Husker, J. Marty, Leland O'Driscoll, Harold J. Tobin, Sara K. McBride, D. Toomey
2024, Bulletin of the Seismological Society of America (114) 3041-3062
The U.S. Geological Survey (USGS)‐operated ShakeAlert® system is the United States West Coast earthquake early warning system (Given et al., 2018). In this study we detail ShakeAlert’s performance during some of the largest events seen by the system thus far. Statewide public alerting using ShakeAlert messages was authorized...
Spatial variability of water temperature within the White River basin, Mount Rainier National Park Washington
Andrew Gendaszek, Anya Clare Leach, Kristin Jaeger
2024, Preprint
Water temperature is a primary control on the occurrence and distribution of cold-water species. Rivers draining Mount Rainier in western Washington, including the White River along its northern flank, support several cold-water fish populations, but the spatial distribution of water temperatures, particularly during late-summer base flow between August and September,...
