Ecosystems

Publications

Filter Total Items: 38,570
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Year Published: 2021

Assessment of variation in the detection and prevalence of blood parasites among sympatrically breeding geese in western Alaska, USA

Haemosporidian parasites may impact avian health and are subject to shifts in distribution and abundance with changing ecologic conditions. Therefore, understanding variation in parasite prevalence is important for evaluating biologically meaningful changes in infection patterns and associated population level impacts. Previous research in western...

Buchheit, Raymond M.; Schmutz, Joel; Reed, John A.; Uher-Koch, Brian D.; Ramey, Andrew M.

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Year Published: 2021

Megafires and thick smoke portend big problems for migratory birds

In 2020, the fire season affecting the western United States reached unprecedented levels. The 116 fires active in September consumed nearly 20,822 km2 (https://inciweb.nwcg.gov/accessible-view/ Accessed 2020-09-29) with eighty percent of this footprint (16,567 km2) from 68 fires occurring within California, Oregon, and Washington....

Overton, Cory T.; Lorenz, Austen; James, Eric P; Ahmadov, Ravan; Eadie, John M.; McDuie, Fiona; Petrie, Mark J.; Nicolai, Chris A.; Weaver, Melanie L; Skalos, Daniel A; Skalos, Shannon; Mott, Andrea Lynn; Mackell, Desmond Alexander; Kennedy, Anna; Matchett, Elliott L.; Casazza, Michael L.

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Year Published: 2021

Range eclipse leads to tenuous survival of a rare lizard species on a barrier atoll

Rediscovery of living populations of a species that was presumed to be extirpated can generate new narratives for conservation in areas suffering from losses in biodiversity. We used field observations and DNA sequence data to verify the rediscovery of the Critically Endangered scincid lizard Emoia slevini on Dåno′, an islet off the...

Richmond, Jonathan Q.; Wostl, Elijah; Reed, Robert; Fisher, R. N.

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Year Published: 2021

Evidence that copepod biomass during the larval period regulates recruitment of Lake Erie walleye

Walleye (Sander vitreus) is an economically and culturally important species in Lake Erie that has experienced large interannual variability in recruitment. We examined the importance of prey biomass during the larval period to walleye recruitment while also considering the importance of temperature. Using nine years of field data over a 22-year...

May, Cassandra J.; Budnik, R.; Ludsin, S.; O'Donnell, D.; Hood, James M.; Roseman, Edward F.; Marschall, E.

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Year Published: 2021

An opportunistic survey reveals an unexpected coronavirus diversity hotspot in North America

In summer 2020, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) was detected on mink farms in Utah. An interagency One Health response was initiated to assess the extent of the outbreak and included sampling animals from on or near affected mink farms and testing them for SARS-CoV-2 and non-SARS coronaviruses. Among the 365 animals...

Ip, Hon S.; Griffin, Kathryn M.; Messer, Jeffrey D.; Winzeler, Megan; Shriner, Susan A.; Killian, Mary Lea; Torchetti, Mia K.; DeLiberto, Thomas J.; Amman, Brian R.; Cossaboom, Caitlin M.; Harvey, R. Reid; Wendling, Natalie M.; Rettler, Hannah; Taylor, Dean; Towner, Jonathan S.; Behravesh, Casey Barton; Blehert, David S.

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Year Published: 2021

Identifying negative sentiment polarity in the Judas technique

In the context of conservation science and management, the Judas technique refers to outfitting an animal (a Judas animal) with a radio transmitter or other identifier so that its movements can be tracked to locate conspecifics. Although this term is commonly used, some consider it offensive due to historical associations of the word Judas with...

Fitzgerald, Austin Lee; Josimovich, Jillian Maureen; Robinson, Charlotte J.; Reed, Robert; Currylow, Andrea Faye

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Year Published: 2021

A riverscape approach reveals downstream propagation of stream thermal responses to riparian thinning at multiple scales

Hydrological connectivity in river networks influences their response to environmental changes as local effects may extend downstream via flowing water. For example, localized changes in riparian forest conditions can affect stream temperatures, and these effects may propagate downstream. However, studies evaluating stream temperature responses to...

Roon, David A.; Dunham, Jason B.; Torgersen, Christian E.

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Year Published: 2021

Exposure to Deepwater Horizon crude oil increases free cholesterol in larval red drum (Sciaenops ocellatus)

The 2010 Deepwater Horizon oil spill impacted over 2100 km of shoreline along the northern Gulf of Mexico, which coincided with the spawning season of many coastal species, including red drum (Sciaenops ocellatus). Red drum develop rapidly and are sensitive to crude oil exposure during the embryonic and larval periods. This study...

McGruer, Victoria; Khursigara, Alexis J.; Magnuson, Jason T.; Esbaugh, Andrew J.; Greer, Justin Blaine; Schlenk, Daniel

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Year Published: 2021

Iñupiaq knowledge of polar bears (Ursus maritimus) in the southern Beaufort Sea, Alaska

Successful wildlife management depends upon coordination and consultation with local communities. However, much of the research used to inform management is often derived solely from data collected directly from wildlife. Indigenous people living in the Arctic have a close connection to their environment, which provides unique opportunities to...

Rode, Karyn D.; Voorhees, Hannah; Huntington, Henry P.; Durner, George M.

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Year Published: 2021

Responses of migratory amphibians to barrier fencing inform the spacing of road underpasses: A case study with California tiger salamanders (Ambystoma californiense) in Stanford, CA, USA

Migratory amphibians are at high risk of negative impacts when roads intersect their upland and breeding habitats. Road mortality can reduce population abundance, survivorship, breeding, recruitment, and probability of long-term persistence. Increasingly, environmental planners recommend installation of under-road tunnels with barrier fencing to...

Brehme, Cheryl S.; Tracey, Jeff A.; Ewing, Brittany; Hobbs, Michael J; Launer, Alan E; Matsuda, Tritia; Adelsheim, Esther M. Cole; Fisher, R. N.

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Year Published: 2021

Making research relevant: Sharing climate change research with rangeland advisors to transform results into drought resilience

On the Ground• Public programs, strategies, and incentives to implement rangeland climate adaptation are more effective if they are tailored to local drought exposures, sensitivities, and adaptation opportunities. As such, local rangeland advisers who aid in climate adaptation are pivotal to the development of these resources.• We hosted a virtual...

Dinan, Maude; Adler, Peter B.; Bradford, John; Brunson, Mark; Elias, Emile; Felton, Andrew J; Greene, Christina; James, Jeremy J.; Suding, Katharine; Thacker, Eric

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Year Published: 2021

U.S. Geological Survey Great Lakes Science Forum—Summary of remaining data and science needs and next steps

A U.S. Geological Survey-led assessment of data gaps and science needs across the Great Lakes ecosystem indicated the following:• Expanded data collection or monitoring would provide basic ecosystem, social, and public health data to manage the Great Lakes system and to develop and test models and decision support tools.• New science and advanced...

Carl, Leon M.; Hortness, Jon E.; Strach, Russell M.
Carl, L.M., Hortness, J.E., and Strach, R.M., 2021, U.S. Geological Survey Great Lakes Science Forum—Summary of remaining data and science needs and next steps: U.S. Geological Survey Open-File Report 2021–1096, 4 p., https://doi.org/10.3133/ofr20211096.