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Year Published: 2019

Individual behaviour and resource use of thermally stressed brook trout Salvelinus fontinalis portend the conservation potential of thermal refugia

Individual aggression and thermal refuge use were monitored in brook trout Salvelinus fontinalis in a controlled laboratory to determine how fish size and personality influence time spent in forage and thermal habitat patches during periods of thermal stress. On average, larger and more exploratory fish initiated more aggressive...

White, Shannon L.; Kline, B.C.; Hitt, Nathaniel; Wagner, Tyler

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Year Published: 2019

Observations of American Shad Alosa sapidissima approaching and using a vertical slot fishway at the head-of-tide Brunswick Dam on the Androscoggin River, Maine

American Shad Alosa sapidissima have historically supported an important fishery along the Atlantic coastal waters of North America. However, the construction of dams reduced populations and restricted landings. Fishways are intended to mitigate obstacles to anadromous fish migrations, but a thorough evaluation of their efficiency is...

Weaver, Daniel M.; Brown, Michael; Zydlewski, Joseph D.

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Year Published: 2019

Age truncation of alewife in Lake Michigan

Empirical evidence has shown increased variability in harvest and recruitment of exploited fish populations, which can result directly from exploitation or indirectly from interactions between external drivers and the internal dynamics of age-structured populations. We investigated whether predation in a freshwater system could affect a prey fish...

Vidal, T.; Irwin, Brian J.; Madenjian, Charles P.; Wenger, S.J.

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Year Published: 2019

Fish assemblages in a Mississippi reservoir mudflat with low structural complexity

In shallow reservoirs, seasonal water drawdowns expose littoral areas and over time produce barren mudflats. When flooded, mudflats provide homogeneous substrates, turbid water, and eroding shorelines of limited ecological value. We hypothesized that in mudflats structurally complex habitats are occupied by more fish, smaller fish of a larger...

Hatcher, H. R.; Miranda, Leandro E.; Colvin, M. E.; Coppola, G.; Lashley, M. A.

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Year Published: 2019

Black bears alter movements in response to anthropogenic features with time of day and season

BackgroundWith the growth and expansion of human development, large mammals will increasingly encounter humans, elevating the likelihood of human-wildlife conflicts. Understanding the behavior and movement of large mammals, particularly around human development, is important for crafting effective conservation and management plans for these...

Zeller, Katherine A.; Wattles, David; Conlee, Laura; DeStefano, Stephen

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Year Published: 2019

Status of the Topeka shiner in Iowa

The Topeka shiner Notropis topeka is native to Iowa, Kansas, Minnesota, Missouri, Nebraska, and South Dakota and has been federally listed as endangered since 1998. Our goals were to determine the present distribution and qualitative status of Topeka shiners throughout its current range in Iowa and characterize the extent of decline in...

Pierce, Clay; Simpson, Nicholas T.; Bybel, Alexander P.; Zambory, Courtney L.; Weber, Michael J.; Roe, Kevin J.

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Year Published: 2019

Nest structure affects auditory and visual detectability, but not predation risk, in a tropical songbird community

Offspring mortality varies dramatically among species with critical demographic and evolutionary ramifications, yet the causes of this variation remain unclear. Nests are widely used for breeding across taxa and thought to influence offspring mortality risk. Traditionally, more complex, enclosed nest structures are thought to reduce offspring...

Mouton, James C.; Martin, Thomas E.

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Year Published: 2019

Replicated landscape genomics identifies evidence of local adaptation to urbanization in wood frogs

Native species that persist in urban environments may benefit from local adaptation to novel selection factors. We used double-digest restriction-side associated DNA (RAD) sequencing to evaluate shifts in genome-wide genetic diversity and investigate the presence of parallel evolution associated with urban-specific selection factors in wood frogs...

Loftin, Cyndy; Homola, Jared J.; Cammen, Kristina M.; Helbing, Caren C.; Birol, Inanc; Schultz, Thomas F.; Kinnison, Michael T.

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Year Published: 2019

Applications of emerging fisheries techniques for paddlefish

No abstract available. 

Gregory Whitledge; Richard Lance; Long, James M.; Neely, Ben; Jason Schooley

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Year Published: 2019

Cerulean Warbler (Setophaga cerulea) response to operational silviculture in the central Appalachian region

The Cerulean Warbler (Setophaga cerulea) is a species of conservation need, with declines linked in part to forest habitat loss on its breeding grounds. Active management of forests benefit the Cerulean Warbler by creating the complex structural conditions preferred by the species, but further research is needed to determine optimal silvicultural...

Nareff, Gretchen E.; Wood, Petra B.; Brown, Donald J.; Fearer, Todd; Larkin, Jeffery L.; Ford, W. Mark

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Year Published: 2019

Wildlife value orientation of landowners from five states in the upper midwest, USA

Five Upper Midwest states (Montana, North Dakota, South Dakota, Minnesota, Iowa) participated in a Plains and Prairie Landscape Conservation Cooperative (PPP-LCC) funded survey of landowners. All five surveys included a 13-item wildlife value orientation (WVO) scale to provide insight into how landowners in this region make land use decisions that...

Gigliotti, Larry M.; Sweikert, Lily A.

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Year Published: 2019

Land-use change and the ecological consequences of personality in small mammals

Many plants rely on animals for seed dispersal, but are all individuals equally effective at dispersing seeds? If not, then the loss of certain individual dispersers from populations could have cascade effects on ecosystems. Despite the importance of seed dispersal for forest ecosystems, variation among individual dispersers and whether land‐use...

Brehm, Allison M.; Mortelliti, Alessio; Maynard, George A.; Zydlewski, Joseph D.