Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 42999
Possible behavioural, energetic and demographic effects of displacement of red-throated divers Possible behavioural, energetic and demographic effects of displacement of red-throated divers
This report comprises the main points of discussion and agreement during a workshop, held in Edinburgh in May 2017, to discuss how displacement might affect individuals and the Red-throated diver population; with additional information added by the scientists following the workshop.
Authors
Volker Dierschke, Robert W. Furness, Carrie E. Gray, Ib Krag Petersen, Joel A. Schmutz, Ramunas Zydelis, Francis Daunt
Developing a translational ecology workforce Developing a translational ecology workforce
We define a translational ecologist as a professional ecologist with diverse disciplinary expertise and skill sets, as well as a suitable personal disposition, who engages across social, professional, and disciplinary boundaries to partner with decision makers to achieve practical environmental solutions. Becoming a translational ecologist requires specific attention to obtaining...
Authors
Mark W. Schwartz, J. Kevin Hiers, Frank W. Davis, Gregg Garfin, Stephen T. Jackson, Adam J. Terando, Connie A. Woodhouse, Toni Lyn Morelli, Matthew A. Williamson, Mark W. Brunson
Interactions among invasive plants: Lessons from Hawai‘i Interactions among invasive plants: Lessons from Hawai‘i
Most ecosystems have multiple-plant invaders rather than single-plant invaders, yet ecological studies and management actions focus largely on single invader species. There is a need for general principles regarding invader interactions across varying environmental conditions, so that secondary invasions can be anticipated and managers can allocate resources toward pretreatment or...
Authors
Carla M. D’Antonio, Rebecca Ostertag, Susan Cordell, Stephanie G. Yelenik
Forecasting consequences of changing sea ice availability for Pacific walruses Forecasting consequences of changing sea ice availability for Pacific walruses
The accelerating rate of anthropogenic alteration and disturbance of environments has increased the need for forecasting effects of environmental change on fish and wildlife populations. Models linking projections of environmental change with behavioral responses and bioenergetic effects can provide a basis for these forecasts. There is particular interest in forecasting effects of...
Authors
Mark S. Udevitz, Chadwick V. Jay, Rebecca L. Taylor, Anthony S. Fischbach, William S. Beatty, Shawn R. Noren
Overview of avian toxicity studies for the Deepwater Horizon Natural Resource Damage Assessment Overview of avian toxicity studies for the Deepwater Horizon Natural Resource Damage Assessment
The Oil Pollution Act of 1990 establishes liability for injuries to natural resources because of the release or threat of release of oil. Assessment of injury to natural resources resulting from an oil spill and development and implementation of a plan for the restoration, rehabilitation, replacement or acquisition of natural resources to compensate for those injuries is accomplished...
Authors
Steven J. Bursian, C. R. Alexander, Dave Cacela, Fred L. Cunningham, Karen M. Dean, Brian S. Dorr, Christine K. Ellis, Celine A.J. Godard-Codding, Christopher G. Guglielmo, Katie C. Hanson-Dorr, Kendall E. Harr, Katherine A. Healy, Michael J. Hooper, Katherine E. Horak, John P. Isanhart, Lisa V. Kennedy, Jane E. Link, Ivan Maggini, John K. Moye, Christina R. Perez, Chris A. Pritsos, Susan A. Shriner, Kinberly A. Trust, Peter L. Tuttle
Molybdenum isotope fractionation during adsorption to organic matter Molybdenum isotope fractionation during adsorption to organic matter
Organic matter is of emerging interest as a control on molybdenum (Mo) biogeochemistry, and information on isotope fractionation during adsorption to organic matter can improve interpretations of Mo isotope variations in natural settings. Molybdenum isotope fractionation was investigated during adsorption onto insolubilized humic acid (IHA), a surrogate for organic matter, as a function...
Authors
Elizabeth K. King, Steven S. Perakis, Julie C. Pett-Ridge
Investigating seagrass in Toxoplasma gondii transmission in Florida (Trichechus manatus latirostris) and Antillean (T. m. manatus) manatees Investigating seagrass in Toxoplasma gondii transmission in Florida (Trichechus manatus latirostris) and Antillean (T. m. manatus) manatees
Toxoplasma gondii is a feline protozoan reported to cause morbidity and mortality in manatees and other marine mammals. Given the herbivorous nature of manatees, ingestion of oocysts from contaminated water or seagrass is presumed to be their primary mode of infection. The objectives of this study were to investigate oocyst contamination of seagrass beds in Puerto Rico and determine the
Authors
Heidi M. Wyrosdick, Richard W. Gerhold, Chunlei Su, Antonio A. Mignucci-Giannoni, Robert K. Bonde, Alycia Chapman, Carla Riviera-Perez, Jessica Martinez, Debra L. Miller
Toward an effective practice of translational ecology Toward an effective practice of translational ecology
No abstract available.
Authors
Stephen T. Jackson, Gregg Garfin, Carolyn A.F. Enquist
Normalized difference vegetation index as an estimator for abundance and quality of avian herbivore forage in arctic Alaska Normalized difference vegetation index as an estimator for abundance and quality of avian herbivore forage in arctic Alaska
Tools that can monitor biomass and nutritional quality of forage plants are needed to understand how arctic herbivores may respond to the rapidly changing environment at high latitudes. The Normalized Difference Vegetation Index (NDVI) has been widely used to assess changes in abundance and distribution of terrestrial vegetative communities. However, the efficacy of NDVI to measure...
Authors
Kyle R. Hogrefe, Vijay P. Patil, Daniel R. Ruthrauff, Brandt W. Meixell, Michael E. Budde, Jerry W. Hupp, David H. Ward
Do observed levels of exploitation from consumption-oriented and trophy-oriented fisheries reduce relative stock densities of Muskellunge below target levels in northern Wisconsin? Do observed levels of exploitation from consumption-oriented and trophy-oriented fisheries reduce relative stock densities of Muskellunge below target levels in northern Wisconsin?
Muskellunge anglers desire to catch large fish, and release rates by recreational anglers often approach 100% (Isermann et al. 2011). Muskellunge are also a culturally significant fish for Chippewa tribes and support a subsistence spearing fishery in Wisconsin’s Ceded Territory (Erickson 2007). Although Muskellunge populations within the state’s Ceded Territory are exposed to both...
Authors
Matthew D. Faust, Michael J. Hansen
Weekly summer diet of gray wolves (Canis lupus) in northeastern Minnesota Weekly summer diet of gray wolves (Canis lupus) in northeastern Minnesota
Wolves (Canis lupus) are opportunistic predators and will capitalize on available abundant food sources. However, wolf diet has primarily been examined at monthly, seasonal, or annual scales, which can obscure short-term responses to available food. We examined weekly wolf diet from late June to early October by collecting scats from a single wolf pack in northeastern Minnesota. During...
Authors
Thomas D. Gable, Steve K. Windels, John G. Bruggink, Shannon Barber-Meyer
Evidence for migratory spawning behavior by morphologically distinct Cisco (Coregonus artedi) from a small inland lake Evidence for migratory spawning behavior by morphologically distinct Cisco (Coregonus artedi) from a small inland lake
Conservation and management of rare fishes relies on managers having the most informed understanding of the underlying ecology of the species under investigation. Cisco (Coregonus artedi), a species of conservation concern, is a cold-water pelagic fish that is notoriously variable in morphometry and life history. Published reports indicate, at spawning time, Cisco in great lakes may...
Authors
Alexander J. Ross, Brian Weidel, Mellisa Leneker, Christopher T. Solomon