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Year Published: 2018

Burrowing owls: Happy urbanite or disgruntled tenant?

No abstract available.

Boal, Clint W.; Dykstra, Cheryl R.; Conway, Courtney J.

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Year Published: 2018

Assessing historical and projected carbon balance of Alaska: A synthesis of results and policy/management implications

We summarize the results of a recent interagency assessment of land carbon dynamics in Alaska, in which carbon dynamics were estimated for all major terrestrial and aquatic ecosystems for the historical period (1950–2009) and a projection period (2010–2099). Between 1950 and 2009, upland and wetland (i.e., terrestrial) ecosystems of the state...

McGuire, A. David; Genet, Hélène; Lyu, Zhou; Pastick, Neal J.; Stackpoole, Sarah M.; Birdsey, Richard; D'Amore, David; He, Yujie; Rupp, T. Scott; Striegl, Robert G.; Wylie, Bruce K.; Zhou, Xiaoping; Zhuang, Qianlai; Zhu, Zhiliang

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Year Published: 2018

Fitness consequences of interspecific nesting associations among cavity-nesting birds

Interspecific aggregations of prey may provide benefits by mitigating predation risk, but they can also create costs if they increase competition for resources or are more easily detectable by predators. Variation in predation risk and resource availability may influence the occurrence and fitness effects of aggregating in nature. Yet tests of...

Mouton, James C.; Martin, Thomas E.

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Year Published: 2018

Long-term spotlight surveys of American alligators in Mississippi, USA

Accurate population estimates and assessments of trajectory are an essential part of harvest management for game species and conservation action plans for protected species. Long-term monitoring can lead to ecological understanding by identifying biotic and abiotic drivers of population dynamics. Spotlight surveys are a widely used method to...

Strickland, Bradley A.; Vilella, Francisco; Flynt, Ricky D.

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Year Published: 2018

What is the value of wild bee pollination for wild blueberries and cranberries, and who values it?

Pollinator conservation efforts and growing interest in wild bee pollination have increased markedly in the last decade, making it increasingly important to have clear and practical estimates of the value of pollinators to agriculture. We used agricultural statistics, socio-economic producer surveys, and agronomic field research data to estimate...

Hoshide, Aaron K.; Drummond, Francis A.; Stevens, Thomas H.; Venturini, Eric M.; Hanes, Samuel P.; Sylvia, Martha M.; Loftin, Cynthia S.; Yarborough, David E.; Averill, Anne L.

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Year Published: 2018

Evaluation of key scientific issues in the report, “State of the mountain lion—A call to end trophy hunting of America’s lion”

In their recently published report, State of the Mountain Lion: A Call to End Trophy Hunting of America’s Lion, the Humane Society of the United States suggested that mountain lion (Puma concolor) hunting should be abolished in the United States. The report claims this recommendation is based on scientific arguments that demonstrate the...

Cain, James W.; Mitchell, Michael S.
Cain, J.W., III, and Mitchell, M.S., 2018, Evaluation of key scientific issues in the report, “State of the mountain lion—A call to end trophy hunting of America’s lion”: U.S. Geological Survey Open-File Report 2018-1128, 14 p., https://doi.org/10.3133/ofr20181128.

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Year Published: 2018

Forecasting effects of angler harvest and climate change on smallmouth bass abundance at the southern edge of their range

Climate change will affect stream systems in numerous ways over the coming century. Globally, streams are expected to experience changes in temperature and flow regime. Previous work has indicated that these changes will likely affect fish distributions, but little work has been conducted examining population level effects of climate change on...

Middaugh, Christopher R.; Magoulick, Daniel D.

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Year Published: 2018

An individual-based model for predicting dynamics of a newly established Mexican wolf (Canis lupus baileyi) population—Final report

Project SummaryThe Mexican wolf recovery team proposed to establish other populations of Mexican wolves (Canis lupus baileyi) in the Southwest (U.S. Fish and Wildlife Service, 1982). We were tasked to conduct an extensive simulation modeling exercise to determine release strategies (in conjunction with management actions) that best predict...

Gedir, Jay V.; Cain, James W.
Gedir, J.V., and Cain, J.W., III, 2018, An individual-based model for predicting dynamics of a newly established Mexican wolf (Canis lupus baileyi) population—Final report: U.S. Geological Survey Open-File Report 2018-1126, 16 p., https://doi.org/10.3133/ofr20181126.

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Year Published: 2018

Nest tree use by Southern flying squirrels in fragmented midwestern landscapes

Southern flying squirrels (Glaucomys volans; SFS) nest in naturally formed cavities in snags and hardwoods found in mature, oak (Quercus spp.)–hickory (Carya spp.) forests. Intensive forest fragmentation of the Midwest United States limits the number of available nesting trees. We quantified annual nest‐site selection patterns by...

Zweep, James S.; Jacques, Christopher N.; Jenkins, Sean E.; Klaver, Robert W.; Dubay, Shelli A.
Zweep, J. S., Jacques, C. N., Jenkins, S. E., Klaver, R. W. and Dubay, S. A. (2018), Nest tree use by southern flying squirrels in fragmented Midwestern landscapes. Wildl. Soc. Bull.. . doi:10.1002/wsb.901

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Year Published: 2018

Piscivore diet shifts and trophic level change after Alewife establishment in Lake Champlain

Invasions and deliberate introductions of new prey species are likely to affect prey choice and trophic level of resident predators. Rainbow Smelt (Osmerus mordax) and Alewife (Alosa pseudoharengus) are common prey fish species in lakes throughout North America either as native or non‐native species. The establishment of Alewife in the 2000s in a...

Simonin, Paul W.; Rudstam, Lars G.; Parrish, Donna; Pientka, Bernard; Sullivan, Patrick J.

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Year Published: 2018

The influence of angler values, involvement, catch orientation, satisfaction, agency trust, and demographics on support for habitat protection and restoration versus stocking in publicly managed waters

Resource managers benefit from knowledge of angler support for fisheries management strategies. Factors including angler values (protection, utilitarian, and dominance), involvement (attraction, centrality, social, identity affirmation, and expression), catch-related motivations (catching some, many, and big fish, and keeping fish), satisfaction,...

Schroeder, Susan A.; Fulton, David C.; Altena, Eric; Baird, Heather; Dieterman, Douglas J.; Jennings, Martin

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Year Published: 2018

Effects of temperature and precipitation on grassland bird nesting success as mediated by patch size

Grassland birds are declining faster than any other bird guild across North America. Shrinking ranges and population declines are attributed to widespread habitat loss and increasingly fragmented landscapes of agriculture and other land uses that are misaligned with grassland bird conservation. Concurrent with habitat loss and degradation,...

Zuckerberg, Benjamin; Ribic, Christine; McCauley, Lisa A.