Ecosystems

Publications

Filter Total Items: 32,992
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Year Published: 2020

Impacts of periodic dredging on macroinvertebrate prey availability for benthic foraging fishes in central San Francisco Bay, California

BackgroundBecause of its importance for species covered under Federal Fishery Management Plans (FMPs), the San Francisco Bay (SFB) estuary has been designated as Essential Fish Habitat (EFH) under the Magnuson-Stevens Fishery Conservation and Management Act (MSA; 16 United States Code §18559b). Within this estuary, benthic macroinvertebrate...

De La Cruz, Susan E. W.; Woo, Isa; Hall, Laurie; Flanagan, Alison; Mittelstaedt, Hannah
De La Cruz, S.E.W., Woo, I., Hall, L., Flanagan, A., and Mittelstaedt, H., 2020, Impacts of periodic dredging on macroinvertebrate prey availability for benthic foraging fishes in central San Francisco Bay, California: U.S. Geological Survey Open-File Report 2020–1086, 96 p., https://doi.org/10.3133/ofr20201086.

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Year Published: 2020

U.S. Geological Survey sagebrush ecosystem research annual report for 2020

The sagebrush (Artemisia spp.) ecosystem extends across 251,473 square miles over portions of 13 western States. Affected by multiple stressors, including interactions among fire, invasive plants, and human land uses, this ecosystem has experienced significant loss, fragmentation, and degradation of landscapes once dominated by sagebrush. In turn...

Hanser, Steven E.; Wiechman, Lief A.
Hanser, S.E., and Wiechman, L.A., eds., 2020, U.S. Geological Survey sagebrush ecosystem research annual report for 2020: U.S. Geological Survey Circular 1470, 94 p., https://doi.org/10.3133/cir1470.

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Year Published: 2020

The effects of management practices on grassland birds—Sedge Wren (Cistothorus platensis)

Keys to Sedge Wren (Cistothorus platensis) management include providing tall, dense grasslands with moderate forb coverage and minimizing disturbances during the breeding season. Sedge Wrens have been reported to use habitats with 30–166 centimeters (cm) average vegetation height, 8–80 cm visual obstruction reading, 15–75 percent grass cover, 3–78...

Shaffer, Jill A.; Igl, Lawrence D.; Johnson, Douglas H.; Sondreal, Marriah L.; Goldade, Christopher M.; Parkin, Barry D.; Wooten, Travis L.; Euliss, Betty R.
Shaffer, J.A., Igl, L.D., Johnson, D.H., Sondreal, M.L., Goldade, C.M., Parkin, B.D., Wooten, T.L., and Euliss, B.R., 2020, The effects of management practices on grassland birds—Sedge Wren (Cistothorus platensis), chap. V of Johnson, D.H., Igl, L.D., Shaffer, J.A., and DeLong, J.P., eds., The effects of management practices on grassland birds: U.S. Geological Survey Professional Paper 1842, 21 p., https://doi.org/10.3133/pp1842V.

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Year Published: 2020

The effects of management practices on grassland birds—Lesser Prairie-Chicken (Tympanuchus pallidicinctus)

The key to Lesser Prairie-Chicken (Tympanuchus pallidicinctus) management is maintaining expansive sand shinnery oak (Quercus havardii) or sand sagebrush (Artemisia filifolia) grasslands. Within these grasslands, areas should contain short herbaceous cover for lek sites (that is, an area where male prairie-chickens gather to engage in courtship...

Jamison, Brent E.; Igl, Lawrence D.; Shaffer, Jill A.; Johnson, Douglas H.; Goldade, Christopher M.; Euliss, Betty R.
Jamison, B.E., Igl, L.D., Shaffer, J.A., Johnson, D.H., Goldade, C.M., and Euliss, B.R., 2020, The effects of management practices on grassland birds—Lesser Prairie-Chicken (Tympanuchus pallidicinctus), chap. D of Johnson, D.H., Igl, L.D., Shaffer, J.A., and DeLong, J.P., eds., The effects of management practices on grassland birds: U.S. Geological Survey Professional Paper 1842, 36 p., https://doi.org/10.3133/pp1842D.

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Year Published: 2020

Influenza A viruses remain infectious for more than seven months in northern wetlands of North America

In this investigation, we used a combination of field- and laboratory-based approaches to assess if influenza A viruses (IAVs) shed by ducks could remain viable for extended periods in surface water within three wetland complexes of North America. In a field experiment, replicate filtered surface water samples inoculated with duck swabs were...

Ramey, Andrew M.; Reeves, Andrew B.; Drexler, Judith Z.; Ackerman, Joshua T.; De La Cruz, Susan E. W.; Lang, Andrew S.; Leyson, Christina; Link, Paul T.; Prosser, Diann; Robertson, Gregory J.; Wight, Jordan; Youk, Sungsu; Spackman, Erica; Pantin-Jackwood, Mary; Poulson, Rebecca L.; Stallknecht, David E.

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Year Published: 2020

Drivers and consequences of apex predator diet composition in the Canadian Beaufort Sea

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 dynamics related to climate-...

Florko, Katie R. N.; Thiemann, Gregory W.; Bromaghin, Jeffrey F.

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Year Published: 2020

A global biophysical typology of mangroves and its relevance for ecosystem structure and deforestation

Mangrove forests provide many ecosystem services but are among the world’s most threatened ecosystems. Mangroves vary substantially according to their geomorphic and sedimentary setting; while several conceptual frameworks describe these settings, their spatial distribution has not been quantified. Here, we present a new global mangrove...

Thorley, Julia; Worthington, Thomas A.; zu Ermgassen, Philine S.E.; Friess, Daniel A.; Krauss, Ken; Lovelock, Catherine E.; Tingey, Rick; Woodroffe, Colin D.; Bunting, Pete; Cormier, N.; Lagomasino, David; Lucas, Richard; Murray, Nicholas J.; Sutherland, William J.; Spalding, Mark

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Year Published: 2020

Possibility for reverse zoonotic transmission of SARS-CoV-2 to free-ranging wildlife: A case study of bats

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...

Olival, Kevin J.; Cryan, Paul M.; Amman, Brian R.; Baric, Ralph S.; Blehert, David S.; Brook, Cara E.; Calisher, Charles H.; Castle, Kevin T.; Coleman, Jeremy TH; Daszak, Peter; Epstein, Jonathan H.; Field, Hume; Frick, Winifred F.; Gilbert, Amy T.; Hayman, David T.S.; Ip, Hon S.; Karesh, William B; Johnson, Christine K.; Kading, Rebekah C; Kingston, Tigga; Lorch, Jeffrey M.; Mendenhall, Ian H; Peel, Alison J.; Phelps, Kendra L; Plowright, Raina K.; Reeder, DeeAnn M; Reichard, Jonathan D.; Sleeman, Jonathan M.; Streicker, Daniel G.; Towner, Jonathan S.; Wang, Lin-Fa

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Year Published: 2020

Resolving species boundaries in the critically imperiled freshwater mussel species, Fusconaia mitchelli (Bivalvia: Unionidae)

Species are a fundamental unit of biology, and defining accurate species boundaries is integral to effective conservation and management of imperiled taxa. Freshwater mussels (Bivalvia: Unionidae) are among the most imperiled groups of organisms in North America, yet species boundaries remain uncertain for many taxa. The False Spike, ...

Smith, Chase H.; Johnson, Nathan; Havlik, Kaitlyn; Doyle, Robert D.; Randklev, Charles R.

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Year Published: 2020

Mass mortality in freshwater mussels (Actinonaias pectorosa) in the Clinch River, USA, linked to a novel densovirus

Freshwater mussels (order Unionida) are among the world’s most biodiverse but imperiled taxa. Recent unionid mass mortality events around the world threaten ecosystem services such as water filtration, nutrient cycling, habitat stabilization, and food web enhancement, but causes have remained elusive. To examine potential infectious causes of...

Richard, Jordon; Leis, Eric; Dunn, Christopher D.; Agbalog, Rose; Waller, Diane L.; Knowles, Susan; Putnam, Joel G.; Goldberg, Tony

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Year Published: 2020

Living with wildfire in the Squilchuck Drainage - Chelan County, Washington: 2020 data report

Research on the social dimensions of wildfire provides opportunities to understand how communities and the people who reside in those communities interact with the threat of wildfire. Overall, three findings from this project were particularly noteworthy. First, household survey results indicate that residents in the Squilchuck Drainage, Chelan...

Brenkert-Smith, Hannah; Champ, Patricia A.; Riley, Jon; Barth, Christopher M.; Donovan, Colleen; Meldrum, James R.; Wagner, Carolyn

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Year Published: 2020

Yellowstone Grizzly Bear investigations 2019 - Annual report of the Interagency Grizzly Bear Study Team

No abstract available.

van Manen, Frank T.; Haroldson, Mark A.; Karabensh, Bryn
van Manen, F. T., M. A. Haroldson, and B. E. Karabensh, editors. 2020. Yellowstone grizzly bear investigations 2019 - Annual report of the Interagency Grizzly Bear Study Team. U.S. Geological Survey, Bozeman, Montana, USA.