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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.

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Year Published: 2019

Reserve design to optimize functional connectivity and animal density

Ecological distance-based spatial capture–recapture models (SCR) are a promising approach for simultaneously estimating animal density and connectivity, both of which affect spatial population processes and ultimately species persistence. We explored how SCR models can be integrated into reserve-design frameworks that explicitly acknowledge both...

Gupta, Amrita; Dilkina, Bistra; Morin, Dana; Fuller, Angela K.; Royle, Andy; Sutherland, Chris; Gomes, Carla

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Year Published: 2019

A general model of temporary aquatic habitat use: Water phenology as a life history filter

Temporary aquatic habitats are not widely appreciated fish habitat. However, fish navigate the transient waters of intertidal zones, floodplains, intermittent and ephemeral streams, lake margins, seasonally frozen lakes and streams, and anthropogenic aquatic habitats across the globe to access important resources. The selective pressures imposed...

Heim, Kurt C.; Falke, Jeffrey A.; McMahon, Thomas E.; Wipfli, Mark S.; Calle, Leonardo

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Year Published: 2019

Proximity to unconventional shale gas infrastructure alters breeding bird abundance and distribution

Unconventional shale gas development is a rapidly expanding driver of forest loss and fragmentation in the central Appalachian region. We evaluated the relationship between breeding passerine abundances and distance from shale gas development at a long-term (2008–2017) study site in northern West Virginia, USA. We examined responses of 27 species...

Farwell, Laura S.; Wood, Petra B.; Brown, Donald J.; Sheehan, James

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Year Published: 2019

Annual winter water level drawdowns limit shallow-water mussel densities in small lakes

Regulated water level fluctuations alter the physical, chemical, and biological environments in lakes. However, few studies have measured the effects of repeated annual winter drawdowns on freshwater mussel populations (Bivalvia: Unionida), and it is unknown whether drawdowns permanently constrain mussel populations to deeper depths or are...

Roy, Allison; Carmignani, Jason R.; Hazelton, Peter D.; Giard, Holly

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Year Published: 2019

Incorporating citizen science data in spatially explicit integrated population models

Information about population abundance, distribution, and demographic rates is critical for understanding a species’ ecology and for effective conservation and management. To collect data over large spatial and temporal extents for such inferences, especially for species with low densities or wide distributions, citizen science can be an efficient...

Sun, Catherine C.; Royle, Andy; Fuller, Angela K.

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Year Published: 2019

Potential for improving among-reader precision and accuracy of Walleye age estimates with minimal training

Within most resource management agencies, fish ages assigned by multiple readers are used to estimate age-based population metrics and to develop state or regional growth standards under the assumption that among-reader precision and accuracy are high. A cursory evaluation suggested that precision of age estimates among seven individuals who...

Dembkowski, Daniel J.; Isermann, Daniel A.; Koenigs, Ryan P.

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Year Published: 2019

Wild canid distribution and co-existence in a natural–urban matrix of the Pioneer Valley of Western Massachusetts

Although development and urbanization are typically believed to have negative impacts on carnivoran species, some species can successfully navigate an urban matrix. Sympatric carnivorans compete for limited resources in urban areas, likely with system-specific impacts to their distributions and activity patterns. We used automatically triggered...

LeFlore, Eric G.; Fuller, Todd K.; Finn, John T.; Organ, John F.; DeStefano, Stephen

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Year Published: 2019

Forest restoration, wildfire, and habitat selection by female mule deer

Decades of fire suppression, logging, and overgrazing have led to increased densities of small diameter trees which have been associated with decreases in biodiversity, reduced habitat quality for wildlife species, degraded foraging conditions for ungulates, and more frequent and severe wildfires. In response, land managers are implementing forest...

Roerick, Tanya M.; Cain, James W.; Gedir, J. V.

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Year Published: 2019

A three-pipe problem: Dealing with complexity to halt amphibian declines

Natural resource managers are increasingly faced with threats to managed ecosystems that are largely outside of their control. Examples include land development, climate change, invasive species, and emerging infectious diseases. All of these are characterized by large uncertainties in timing, magnitude, and effects on species. In many cases, the...

Converse, Sarah J.; Campbell Grant, Evan H.

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Year Published: 2019

Predicting hydrologic disturbance of streams using species occurrence data

Aquatic organisms have adapted over evolutionary time-scales to hydrologic variability represented by the natural flow regime of rivers and streams in their unimpaired state. Rapid landscape change coupled with growing human demand for water have altered natural flow regimes of many rivers and streams on a global scale. Climate non-stationarity is...

Fox, J.T.; Magoulick, Daniel D.

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Year Published: 2019

Effect of hydrologic, geomorphic, and vegetative conditions on avian communities in the Middle Rio Grande of New Mexico

We evaluated relationships among hydrogeomorphology, vegetation structure and composition, and avian communities among three subreaches of the San Acacia Reach of the Middle Rio Grande (MRG) River of New Mexico. The subreaches varied in degradation, with Subreach 1 being severely entrenched and hydrologically disconnected, Subreach 2 being the...

Hamilton, S. W.; King, Sammy L.; Dello Russo, G.