Ecosystems

Publications

Filter Total Items: 37,869
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Year Published: 2021

Survival and growth of suckers in mesocosms at three locations within Upper Klamath Lake, Oregon, 2018

Executive SummaryDue to high mortality in the first year or two of life, Lost River (Deltistes luxatus sp.) and Shortnose suckers (Chasmistes brevirostris sp.) in Upper Klamath Lake, Oregon rarely reach maturity. In 2015, the U.S. Fish and Wildlife Service began the Sucker Assisted Rearing Program (SARP) to improve early life survival before...

Burdick, Summer M.; Conway, Carla M.; Ostberg, Carl O.; Bart, Ryan J.; Elliott, Diane G.
Burdick, S.M., Conway, C.M., Ostberg, C.O., Bart, R.J., and Elliott, D.G., 2021, Survival and growth of suckers in mesocosms at three locations within Upper Klamath Lake, Oregon, 2018: U.S. Geological Survey Open-File Report 2021–1036, 18 p., https://doi.org/10.3133/ofr20211036.

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Year Published: 2021

The demographic and ecological factors shaping diversification among rare Astragalus species

AimEvolutionary radiations are central to the origin and maintenance of biodiversity, yet we rarely understand how they are jointly shaped by demography and ecological opportunity. Astragalus is the largest plant genus in the world and is disproportionately comprised of rare species restricted to narrow geographic and ecological regions...

Jones, Matthew Richard; Winkler, Daniel E.; Massatti, Robert

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Year Published: 2021

Implications of zoonoses from hunting and use of wildlife in North American arctic and boreal biomes: Pandemic potential, monitoring, and mitigation

The COVID-19 pandemic has re-focused attention on mechanisms that lead to zoonotic disease spillover and spread. Commercial wildlife trade, and associated markets, are recognized mechanisms for zoonotic disease emergence, resulting in a growing global conversation around reducing human disease risks from spillover associated with hunting, trade,...

Keatts, Lucy; Robards, Martin D.; Olson, Sarah H.; Hueffer, Karsten; Insley, Stephen; Joly, Damien O.; Kutz, Susan; Lee, David S.; Chetkiewicz, Cheryl-Lesley B.; Lair, Stephane; Preston, Nicholas D.; Pruvot, Martin; Ray, Justina C.; Reid, Donald; Sleeman, Jonathan M.; Stimmelmayr, Raphaela; Stephen, Craig; Walzer, Chris

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Year Published: 2021

Enigmatic near‐extirpation in a boreal toad metapopulation in northwestern Montana

North America's protected lands harbor biodiversity and provide habitats where species threatened by a variety of stressors in other environments can thrive. Yet disease, climate change, and other threats are not limited by land management boundaries and can interact with conditions within protected landscapes to affect sensitive populations. We...

McCaffery, Rebecca; Russell, Robin E.; Hossack, Blake R.

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Year Published: 2021

U.S. Geological Survey—Northern Prairie Wildlife Research Center 2019–20 research activity report

The mission of Northern Prairie Wildlife Research Center is to provide scientific information needed to conserve and manage the Nation’s natural capital for current and future generations, with an emphasis on migratory birds, Department of the Interior trust resources, and ecosystems of the Nation’s interior. This report provides an overview of...

Sherfy, Mark H.
Sherfy, M.H., ed., 2021, U.S. Geological Survey—Northern Prairie Wildlife Research Center 2019–20 research activity report: U.S. Geological Survey Circular 1481, 67 p., https://doi.org/10.3133/cir1481.

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Year Published: 2021

Anthropogenic edge effects in habitat selection by sun bears in a protected area

Wildlife populations in southeast Asia are increasingly experiencing a broad array of anthropogenic threats, and mammalian carnivores are particularly vulnerable. Populations of the Malayan sun bear Helarctos malayanus are estimated to have declined by 30% over the last 30 years from forest conversion to industrial plantations and...

Tee, T. L; van Manen, Frank T.; Kretzschmar, P.; Sharp, S. P.; Wong, S. T.; Gadas, S.; Ratnayeke, S.

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Year Published: 2021

Understanding sea lamprey populations in the Great Lakes prior to broad implementation of sea lamprey control

Control of invasive sea lamprey in the Great Lakes with a selective pesticide (lampricide) that targeted larval sea lamprey began in the late 1950's and continues to be one of the main methods for control. Although the Great Lakes Fishery Commission, which was formed with the mandate of controlling sea lamprey, often expresses the success of the...

Robinson, Kelly F.; Miehls, Scott M.; Siefkes, Michael J.

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Year Published: 2021

Optimal strategies for managing wildlife harvest under climate change

Wildlife populations are experiencing shifting dynamics due to climate and landscape change. Management policies that fail to account for non‐stationary dynamics may fail to achieve management objectives. We establish a framework for understanding optimal strategies for managing a theoretical harvested population under non‐stationarity. Building...

Tucker, Anna Maureen; Runge, Michael C.

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Year Published: 2021

Quantifying Great Lakes sea lamprey populations using an index of adults

Effective control of aquatic invasive species requires knowledge of the population throughout the infested area. Lake-wide assessments of invasive sea lampreys (Petromyzon marinus) are used to assess their status in the Laurentian Great Lakes, informing fisheries managers and decision makers in the sea lamprey control program. Initially...

Adams, Jean V.; Barber, Jessica M.; Bravener, Gale A; Lewandoski, Sean A

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Year Published: 2021

Assessment of wave attenuation, current patterns, and sediment deposition and erosion during winter storms by living shoreline structures in Gandys Beach, New Jersey

This study was conducted by the U.S. Geological Survey and Northeastern University in cooperation with the U.S. Fish and Wildlife Service and The Nature Conservancy. This report summarizes field investigation and analysis of waves, current patterns, and sediment deposition and erosion along the Gandys Beach, New Jersey, salt marsh vegetated...

Wang, Hongqing; Capurso, William D.; Chen, Qin; Zhu, Ling; Niemoczynski, Lukasz; Snedden, Gregg
Wang, H., Capurso, W., Chen, Q., Zhu, L., Niemoczynski, L., and Snedden, G., 2021, Assessment of wave attenuation, current patterns, and sediment deposition and erosion during winter storms by living shoreline structures in Gandys Beach, New Jersey: U.S. Geological Survey Open-File Report 2021–1040, 37 p., https://doi.org/10.3133/ofr20211040.

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Year Published: 2021

Estimates of food consumption rates for invasive Blue Catfish Ictalurus furcatus

As a prolific invasive species, Blue Catfish Ictalurus furcatus threaten native organisms in numerous estuarine and tidal freshwaters along the Atlantic coast of the United States. However, no published estimates of consumption rates are available for Blue Catfish in the scientific literature. This information is critical for development...

Schmitt, Joseph; Hilling, Corbin D.; Orth, Donald J.

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Year Published: 2021

A framework for allocating conservation resources among multiple threats and actions

Land managers decide how to allocate resources among multiple threats that can be addressed through multiple possible actions. Additionally, these actions vary in feasibility, effectiveness, and cost. We sought to provide a way to optimize resource allocation to address multiple threats when multiple management options are available, including...

Moore, Joslin L; Camaclang, Abbey E; Moore, Alana L.; Hauser, Cindy E; Runge, Michael C.; Picheny, Victor; Rumpff, Libby