Climate change Is likely to alter future wolf - moose - forest interactions at Isle Royale National Park, United States
Nathan R. De Jager, Jason J. Rohweder, Matthew J. Duveneck
2020, Frontiers in Ecology and Evolution (8)
We evaluated how climate change and variable rates of moose browsing intensity, as they relate to wolf predation, might affect the forests of Isle Royale National Park, Michigan, United States by conducting a modeling experiment. The experiment consisted of contrasting three different scenarios of wolf management and with a static...
High sensitivity of Bering Sea winter sea ice to winter insolation and carbon dioxide over the last 5,500 years
Miriam C. Jones, Max Berkelhammer, Katherine Keller, Kei Yoshimura, Matthew J. Wooller
2020, Science Advances (6)
Anomalously low winter sea ice extent and early retreat in CE 2018 and 2019 challenge previous notions that winter sea ice in the Bering Sea has been stable over the instrumental record, although long-term records remain limited. Here, we use a record of peat cellulose oxygen...
Effects of water level alteration on carbon cycling in peatlands
Yehui Zhong, Jiang Ming, Beth Middleton
2020, Ecosystem Health and Sustainability (6)
Globally, peatlands play an important role in the carbon (C) cycle. High water level is a key factor in maintaining C storage in peatlands, but water levels are vulnerable to climate change and anthropogenic disturbance. This review examines literature related to the effects of water level alteration on C cycling...
Endocrine disrupting activities and geochemistry of water resources associated with unconventional oil and gas activity
Christopher D. Kassotis, Jennifer S. Harkness, Phuc H. Vo, Danh C. Vu, Kate Hoffman, Katelyn M. Cinnamon, Jennifer N. Cornelius-Green, Avner Vengosh, Chung-Ho Lin, Donald E. Tillitt, Robin L. Kruse, Jane A. McElroy, Susan C. Nagel
2020, Science of the Total Environment (748)
The rise of hydraulic fracturing and unconventional oil and gas (UOG) exploration in the United States has increased public concerns for water contamination induced from hydraulic fracturing fluids and associated wastewater spills. Herein, we collected surface and groundwater samples across Garfield County, Colorado, a...
Drivers and consequences of apex predator diet composition in the Canadian Beaufort Sea
Katie R. N. Florko, Gregory W. Thiemann, Jeffrey F. Bromaghin
2020, Oecologia (194) 51-63
Polar bears (Ursus maritimus) rely on annual sea ice as their primary habitat for hunting marine mammal prey. Given their long lifespan, wide geographic distribution, and position at the top of the Arctic marine food web, the diet composition of polar bears can provide insights into temporal and spatial ecosystem...
Sacramento pikeminnow migration record
Dennis A. Valentine, Matthew J. Young, Frederick V. Feyrer
2020, Journal of Fish and Wildlife Management (11) 588-592
Sacramento Pikeminnow Ptychocheilus grandis is a potamodromous species endemic to mid- and low-elevation streams and rivers of Central and Northern California. Adults are known to undertake substantial migrations, typically associated with spawning, though few data exist on the extent of these migrations. Six Sacramento Pikeminnow implanted with passive integrated transponder tags in...
SurfRCaT: A tool for remote calibration of pre-existing coastal cameras to enable their use as quantitative coastal monitoring tools
Matthew P. Conlin, Peter N Adams, Benjamin Wilkinson, Gregory Dusek, Margaret L. Palmsten, Jenna A. Brown
2020, SoftwareX (12)
The Surf-camera Remote Calibration Tool (SurfRCaT) is a Python-based software application to calibrate and rectify images from pre-existing video cameras that are operating at coastal sites in the United States. The software enables remote camera calibration and subsequent image rectification by facilitating the remote-extraction of ground control points using airborne...
Fates and fingerprints of sulfur and carbon following wildfire in economically important croplands of California, U.S.
Anna L. Hermes, Brian A. Ebel, Sheila F. Murphy, Eve-Lyn S. Hinckley
2020, Science of the Total Environment (750)
Sulfur (S) is widely used in agriculture, yet little is known about its fates within upland watersheds, particularly in combination with disturbances like wildfire. Our study examined the effects of land use and wildfire on the biogeochemical “fingerprints,” or the quantity and chemical composition,...
Food matrix reference materials for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements: Collagens, flours, honeys, and vegetable oils
Arndt Schimmelmann, Haiping Qi, Philip J.H. Dunn, Federica Camin, Luana Bontempo, Doris Potocnik, Nives Ogrinc, Simon Kelly, James Carter, Aiman Abrahim, Lauren T Reid, Tyler B. Coplen
2020, Journal of Agricultural and Food Chemistry (68) 10852-10864
An international project developed, quality-tested, and measured isotope–delta values of 10 new food matrix reference materials (RMs) for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements to support food authenticity testing and food provenance verification. These new RMs, USGS82 to USGS91,...
Sediment export and impacts associated with river delta channelization compound estuary vulnerability to sea-level rise, Skagit River Delta, Washington, USA
Eric E. Grossman, Andrew W. Stevens, Peter Dartnell, Doug A George, David Finlayson
2020, Marine Geology (430)
Improved understanding of the budget and retention of sediment in river deltas is becoming increasingly important to mitigate and plan for impacts expected with sea level rise. In this study, analyses of historical bathymetric change, sediment core stratigraphy, and modeling are...
Trace and rare earth elements determination in milk whey from the Veneto region, Italy
Raffaelo Tedesco, Maria del Carmen Villoslada Hidalgo, Massimiliano Varde, Natalie Kehrwald, Carlo Barbante, Giulio Cozzi
2020, Food Control (121)
Multi-element analyses determine the content of 17 trace elements (Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Sr, Cd, Cs, Ba, Pb, U) and 14 rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, Lu,...
elfgen: A new instream flow framework for rapid generation and optimization of flow-ecology relations
Joseph D Kleiner, Elaina M Passero, Robert W. Burgholzer, Jennifer L. Krstolic, Durelle R Scott
2020, Journal of the American Water Resources Association (6) 949-966
Effective water resource management requires practical, data‐driven determination of instream flow needs. Newly developed, high‐resolution flow models and aquatic species databases provide enormous opportunity, but the volume of data can prove challenging to manage without automated tools. The objective of this study was to develop a...
Broadcasting regional call dialects has little influence on the effectiveness of call-broadcast surveys for marsh birds
Courtney J. Conway, Christopher P. Nadeau, Meaghan Conway
2020, Wetlands (40) 2055-2059
Emergent wetlands have declined in North America and, in response, many wetland-dependent animals have declined in abundance. For example, many species of secretive marsh birds in North America have declined during the last century. However, estimates of population decline and efforts to assess the effects of...
Concealment of juvenile bull trout in response to temperature, light, and substrate: Implications for detection
Russell F. Thurow, James Peterson, Gwynne L. Chandler, Christine M. Moffitt, Theodore C. Bjornn
2020, PLoS ONE (15)
Bull trout (Salvelinus confluentus) are challenging to detect as a result of the species cryptic behavior and coloration, relatively low densities in complex habitats, and affinity for cold, high clarity, low conductivity waters. Bull trout are also closely associated with the stream bed, frequently conceal in substrate, and this concealment behavior...
Utilization of multiple microbial tools to evaluate efficacy of restoration strategies to improve recreational water quality at a Lake Michigan Beach (Racine, WI)
Julie Kinzelman, Muruleedhara Byappanahalli, Meredith B. Nevers, Dawn Shively, Stephan Kurdas, Cindy H Nakatsu
2020, Journal of Microbiological Methods (178)
Hydro-meteorological conditions facilitate transport of fecal indicator bacteria (FIB) to the nearshore environment, affecting recreational water quality. North Beach (Racine, Wisconsin, United States), is an exemplar public beach site along Lake Michigan, where precipitation-mediated surface runoff, wave encroachment, stormwater and tributary outflow were demonstrated to contribute to beach advisories. Multiple...
Effect of fluvial discharges and remote non-tidal residuals on compound flood forecasting in San Francisco Bay
Babak Tehranirad, Liv M. Herdman, Kees Nederhoff, Li H. Erikson, Rob Cifelli, Greg Pratt, Michael Leon, Patrick L. Barnard
2020, Water (12)
Accurate and timely flood forecasts are critical for making emergency-response decisions regarding public safety, infrastructure operations, and resource allocation. One of the main challenges for coastal flood forecasting systems is a lack of reliable forecast data of large-scale oceanic and watershed processes and the combined effects of multiple hazards, such...
2020 Joint Agency Commercial Imagery Evaluation—Remote sensing satellite compendium
Shankar N. Ramaseri Chandra, Jon Christopherson, Kimberly A. Casey
2020, Circular 1468
The Joint Agency Commercial Imagery Evaluation (JACIE) is a collaboration between five Federal agencies that are major users and producers of satellite land remote sensing data. In recent years, the JACIE group has observed ever-increasing numbers of remote sensing satellites being launched. This rapidly growing wave of new systems creates...
Post-release survival of fallout Newell’s Shearwater fledglings from a rescue and rehabilitation program on Kauai, Hawaii
Andre F. Raine, Tracy Anderson, Megan Vynne, Scott Driskill, Helen Raine, Josh Adams
2020, Endangered Species Research (43) 39-50
Light attraction impacts nocturnally active fledgling seabirds worldwide and is a particularly acute problem on Kaua‘i (the northern-most island in the main Hawaiian Island archipelago) for the Critically Endangered Newell’s shearwater Puffinus newelli. The Save Our Shearwaters (SOS) program was created in 1979 to address this issue and to date has...
Wetland and hydric soils
Carl Trettin, Randall Kolka, Anne Marsh, Sheel Bansal, Eric Lilleskov, Patrick Megonigal, Marla Stelk, Graeme Lockaby, David D'Amore, Richard A. MacKenzie, Brian Tangen, Rodney A. Chimner, James Gries
2020, Book chapter, Forest and rangeland soils of the United States under changing conditions
Soil and the inherent biogeochemical processes in wetlands contrast starkly with those in upland forests and rangelands. The differences stem from extended periods of anoxia, or the lack of oxygen in the soil, that characterize wetland soils; in contrast, upland soils are nearly always oxic. As a result, wetland soil...
Great Plains
Charles H. Perry, Brian Tangen, Sheel Bansal
2020, Book chapter, Forest and rangeland soils of the United States under changing conditions
No abstract available....
Detection and measurement of land subsidence and uplift using Global Positioning System surveys and interferometric synthetic aperture radar, Coachella Valley, California, 2010–17
Michelle Sneed, Justin T. Brandt
2020, Scientific Investigations Report 2020-5093
Groundwater has been a major source of agricultural, recreational, municipal, and domestic supply in the Coachella Valley of California since the early 1920s. Pumping of groundwater resulted in groundwater-level declines as large as 50 feet (ft) or 15 meters (m) by the late 1940s. Because of concerns that the...
Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: A case study of bats
Kevin J. Olival, Paul M. Cryan, Brian R. Amman, Ralph S. Baric, David S. Blehert, Cara E. Brook, Charles H. Calisher, Kevin T. Castle, Jeremy T. H. Coleman, Peter Daszak, Jonathan H. Epstein, Hume Field, Winifred F. Frick, Amy T. Gilbert, David T. S. Hayman, S. Ip, William B Karesh, Christine K. Johnson, Rebekah C. Kading, Tigga Kingston, Jeffrey M. Lorch, Ian H. Mendenhall, Alison J. Peel, Kendra L. Phelps, Raina K. Plowright, DeeAnn M. Reeder, Jonathan D. Reichard, Jonathan M. Sleeman, Daniel G. Streicker, Jonathan S. Towner, Lin-Fa Wang
2020, PLoS Pathogens (9)
The COVID-19 pandemic highlights the substantial public health, economic, and societal consequences of virus spillover from a wildlife reservoir. Widespread human transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) also presents a new set of challenges when considering viral spillover from people to naïve wildlife and other animal populations....
Science to support water-resource management in the upper Roanoke River watershed
James S. Webber, John D. Jastram
2020, Fact Sheet 2020-3040
Flooding, excessive sedimentation, and high bacteria counts are among the most challenging water resource issues affecting the Upper Roanoke River watershed. These issues threaten public safety, impair the watershed’s living resources, and threaten drinking water supplies, though mitigation is costly and difficult to manage.Urban development, land disturbance, and changing climatic...
GeMS (Geologic Map Schema)—A standard format for the digital publication of geologic maps
U.S. Geological Survey National Cooperative Geologic Mapping Program
2020, Techniques and Methods 11-B10
IntroductionThis report describes and defines GeMS (for Geologic Map Schema), a new standardized database schema—that is, a database design—for the digital publication of geologic maps. It originally was intended for geologic mapping funded by the National Cooperative Geologic Mapping Program of the U.S. Geological Survey, but its use can be...
River channel response to dam removals on the lower Penobscot River, Maine, United States
Mathias J. Collins, Alice R. Kelley, Pamela J. Lombard
2020, River Research and Applications (36) 1778-1789
Most geomorphology studies of dam removals have focused on sites with appreciable quantities of stored sediments. There is great interest in channel responses to sediment releases because of potential effects on aquatic and riparian habitats and human uses of these areas. Yet, behind many dams in the Northeast U.S. and...
