Ecosystems

Publications

Filter Total Items: 38,125
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Year Published: 2021

The Everglades vulnerability analysis—Integrating ecological models and addressing uncertainty

The Everglades vulnerability analysis (EVA) is a project led by the U.S. Geological Survey in cooperation with the National Park Service and U.S. Army Corps of Engineers to accomplish one of the science goals of Restoration Coordination & Verification (RECOVER), a multiagency group responsible for providing scientific and technical evaluations...

D’Acunto, Laura E.; Romañach, Stephanie S.; Haider, Saira M.; Hackett, Caitlin E.; Nestler, Jennifer H.; Shinde, Dilip; Pearlstine, Leonard G.
D’Acunto, L.E., Romañach, S.S., Haider, S.M., Hackett, C.E., Nestler, J.H., Shinde, D., and Pearlstine, L.G., 2021, The Everglades vulnerability analysis—Integrating ecological models and addressing uncertainty: U.S. Geological Survey Fact Sheet 2021–3033, 4 p., https://doi.org/10.3133/fs20213033.

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Year Published: 2021

Energetic and health effects of protein overconsumption constrain dietary adaptation in an apex predator

Studies of predator feeding ecology commonly focus on energy intake. However, captive predators have been documented to selectively feed to optimize macronutrient intake. As many apex predators experience environmental changes that affect prey availability, limitations on selective feeding can affect energetics and health. We estimated the protein...

Rode, Karyn D.; Robbins, Charles T.; Stricker, Craig A.; Taras, Brian D.; Tollefson, Troy N

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Year Published: 2021

Timing and hydrological conditions associated with bigheaded carp movement past navigation dams on the upper Mississippi river

As the range of non-native bigheaded carps (Hypophthalmichthys spp.) continues to expand throughout river systems of the United States, managers are tasked with preventing or slowing the spread of these invasive species. Main stem navigation dams on the upper Mississippi River, long considered a deterrent to fish migration, may slow or...

Vallazza, Jon; Mosel, Kayle J.; Reineke, David M.; Runstrom, Ann L.; Larson, James H.; Knights, Brent C.

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Year Published: 2021

Informing wetland management with waterfowl movement and sanctuary use responses to human-induced disturbance

Long-term environmental management to prevent waterfowl population declines is informed by ecology, movement behavior and habitat use patterns. Extrinsic factors, such as human-induced disturbance, can cause behavioral changes which may influence movement and resource needs, driving variation that affects management efficacy. To better...

McDuie, Fiona; Lorenz, Austen; Klinger, Robert C.; Overton, Cory T.; Feldheim, Cliff L.; Ackerman, Joshua T.; Casazza, Michael L.

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Year Published: 2021

U.S. Geological Survey science for the Wyoming Landscape Conservation Initiative—2018 annual report

The Wyoming Landscape Conservation Initiative (WLCI) was established in 2007 as a collaborative interagency partnership to develop and implement science-based conservation actions. During the past 11 years, partners from U.S. Geological Survey (USGS), State and Federal land management agencies, universities, and the public have collaborated to...

Anderson, Patrick J.; Aldridge, Cameron L.; Alexander, Jason S.; Assal, Timothy J.; Aulenbach, Steven; Bowen, Zachary H.; Chalfoun, Anna D.; Chong, Geneva W.; Copeland, Holly; Edmunds, David R.; Germaine, Steve; Graves, Tabitha; Heinrichs, Julie A.; Homer, Collin G.; Huber, Christopher; Johnston, Aaron; Kauffman, Matthew J.; Manier, Daniel J.; McShane, Ryan R.; Eddy-Miller, Cheryl A.; Miller, Kirk A.; Monroe, Adrian P.; O'Donnell, Michael S.; Ortega, Anna; Walters, Annika W.; Wieferich, Daniel J.; Wyckoff, Teal B.; Zeigenfuss, Linda
Anderson, P.J., Aldridge, C.L., Alexander, J.S., Assal, T.J., Aulenbach, S., Bowen, Z.H., Chalfoun, A.D., Chong, G.W., Copeland, H., Edmunds, D.R., Germaine, S., Graves, T., Heinrichs, J.A., Homer, C.G., Huber, C.C., Johnston, A., Kauffman, M.J., Manier, D.J., McShan, R.R., Eddy-Miller, C.A., Miller, K.A., Monroe, A.P., O’Donnell, M.S., Ortega, A., Walters, A.W., Wieferich, D., Wyckoff, T.B., and Zeigenfuss, L., 2020, U.S. Geological Survey science for the Wyoming Landscape Conservation Initiative—2018 annual report: U.S. Geological Survey Open-File Report 2021–1067, 33 p., https://doi.org/10.3133/ofr20211067.

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Year Published: 2021

Evaluation of factors affecting migration success of adult sockeye salmon (Oncorhynchus nerka) in the Yakima River, Washington, 2020

A study was conducted during June–October 2020 to evaluate factors affecting the migration success of adult sockeye salmon (Oncorhynchus nerka) in the Yakima River, Washington. A total of 144 adult sockeye salmon were tagged and released during the study. Most fish (112 fish) were collected, tagged with passive integrated transponder (PIT), and...

Kock, Tobias J.; Hansen, Amy C.; Evans, Scott D.; Visser, Richard; Saluskin, Brian; Matala, Andrew; Hoffarth, Paul
Kock, T.J., Hansen, A.C., Evans, S.D., Visser, R., Saluskin, B., Matala, A., and Hoffarth, P., 2021, Evaluation of factors affecting migration success of adult sockeye salmon (Oncorhynchus nerka) in the Yakima River, Washington, 2020: U.S. Geological Survey Open-File Report 2021–1075, 30 p., https://doi.org/10.3133/ofr20211075.

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Year Published: 2021

The spatial-temporal relationship of blue-winged teal to domestic poultry: movement state modeling of a highly mobile avian influenza host

 Migratory waterfowl facilitate long distance dispersal of zoonotic pathogens and are increasingly recognized as contributing to the geographic spread of avian influenza viruses (AIV). AIV are globally distributed and have the potential to produce highly contagious poultry disease, economically impact both large-scale and backyard poultry...

Humphreys, John M.; Douglas, David C.; Ramey, Andrew M.; Mullinax, Jennifer M.; Soos, Catherine; Link, Paul T.; Walther, Patrick; Prosser, Diann

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Year Published: 2021

Taxonomic, temporal, and spatial variations in zooplankton fatty acid composition in Puget Sound, WA, USA

Fatty acid (FA) content and composition of zooplankton in Puget Sound, Washington (USA) was studied to investigate the nutritional quality of diverse zooplankton prey for juvenile salmon (Oncorhynchus spp.) in terms of their essential fatty acid (EFA) content. The study focus was on eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and...

Hiltunen, Minna; Strandberg, Ursula; Brett, Michael T.; Winans, Amanda K.; Beauchamp, David; Kotila, Miika; Keister, Julie E.

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Year Published: 2021

Response to Gard et al.'s (2021) Comments on the Critical Review “Polychlorinated Biphenyl Tissue-Concentration Thresholds for Survival, Growth, and Reproduction in Fish”

This response is offered to the critique by Gard et al. (2021) of our meta-analysis of polychlorinated biphenyl (PCB)-induced toxicity data in fish (Berninger and Tillitt 2019). Gard et al. (2021) offered numerous comments, the most substantive suggesting that 1) we should have added no-observable–adverse effect residue (NOAER) data from...

Berninger, Jason P.; Tillitt, Donald E.

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Year Published: 2021

Drivers of seedling establishment success in dryland restoration efforts

Restoration of degraded drylands is urgently needed to mitigate climate change, reverse desertification and secure livelihoods for the two billion people who live in these areas. Bold global targets have been set for dryland restoration to restore millions of hectares of degraded land. These targets have been questioned as overly ambitious, but...

Shackelford, Nancy; Paterno, Gustavo B.; Winkler, Daniel E.; Erickson, Todd E.; Leger, Elizabeth A.; Svejcar, Lauren N.; Breed, Martin F.; Faist, Akasha M.; Harrison, Peter L.; Curran, Michael F.; Guo, Qinfeng; Kirmer, Anita; Law, Darin J.; Mganga, Kevin; Munson, Seth M.; Porensky, Lauren M.; Quiroga, Raul Emiliano; Török, Péter; Wainwright, Claire E.; Abdullahi, Ali; Bahm, Matt A.; Ballenger, Elizabeth A.; Barger, Nichole; Baughman, Owen W.; Becker, Carina; Lucas-Borja, Manuel Esteban; Boyd, Chad S.; Burton, Carla M.; Burton, Philip J.; Calleja, Eman; Carrick, Peter J.; Caruana, Alex; Clements, Charlie D.; Davies, Kirk W.; Deák, Balázs; Drake, Jessica; Dullau, Sandra; Eldridge, Joshua; Espeland, Erin; Finn, Carol A.; Fick, Stephen E.; Garbowski, Magda; de la Riva, Enrique G.; Golos, Peter J.; Grey, Penelope A.; Heydenrych, Barry; Holmes, Patricia M.; James, Jeremy J.; Jonas-Bratten, Jayne; Kiss, Réka; Kramer, Andrea T.; Larson, Julie E.; Lorite, Juan; Mayence, C. Ellery; Merino-Martín, Luis; Miglécz, Tamás; Milton, Suanne Jane; Monaco, Thomas A.; Montalvo, Arlee M.; Navarro-Cano, Jose A.; Paschke, Mark W.; Peri, Pablo Luis; Pokorny, Monica L.; Rinella, Matthew J.; Saayman, Nelmarie; Schantz, Merilynn C.; Parkhurst, Tina; Seabloom, Eric W.; Stuble, Katharine L.; Uselman, Shauna M.; Valkó, Orsolya; Veblen, Kari E.; Wilson, Scott D.; Wong, Megan; Xu, Zhiwei; Suding, Katharine L.

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Year Published: 2021

Ignitions explain more than climate or weather in driving Santa Ana Wind fires

Autumn and winter Santa Ana wind (SAW)–driven wildfires play a substantial role in area burned and societal losses in southern California. Temperature during the event and antecedent precipitation in the week or month prior play a minor role in determining area burned. Burning is dependent on wind intensity and number of human-ignited fires. Over...

Keeley, Jon; Guzman-Morales, Janin; Gershunov, Alexander; Syphard, Alexandra D.; Cayan, Daniel; Pierce, David W; Flannigan, Michael; Brown, Tim J

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Year Published: 2021

Response of forage plants to alteration of temperature and spring thaw date: Implications for geese in a warming Arctic

Changes in summer temperatures in Arctic Alaska have led to longer and warmer growing seasons over the last three decades. Corresponding with these changes in climate, the abundance and distributions of geese have increased and expanded over the same period. We used an experimental approach to assess the response of goose forage plants to...

Flint, Paul L.; Meixell, Brandt W.