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Winter survival shaped by forage abundance and snow depth for a long-distance migratory ungulateNARA Subscribed
Adult survival is a crucial factor influencing the population dynamics of caribou ( Rangifer tarandus ), yet its relationship with environmental variables remains poorly understood. We explored linkages among lichen abundance (the primary winter forage), snow depth, and overwinter survival of adult female caribou in the Western Arctic Herd (WAH), a large population of barren-ground caribou ( R. t. granti ) in northwest Alaska....
Evidence for an Adaptive, Large‐Scale Range Shift in a Long‐Distance Terrestrial MigrantNARA Subscribed
Long‐distance migrations are a striking, and strikingly successful, adaptation for highly mobile terrestrial animals in seasonal environments. However, it remains an open question whether migratory animals are more resilient or less resilient to rapidly changing environments. Furthermore, the mechanisms by which animals adapt or modify their migrations are poorly understood. We describe a dramatic shift of over 500 km in the w...
Accurately quantifying species’ area requirements is a prerequisite for effective area‐based conservation. This typically involves collecting tracking data on species of interest and then conducting home‐range analyses. Problematically, autocorrelation in tracking data can result in space needs being severely underestimated. Based on the previous work, we hypothesized the magnitude of underestimation varies with body mass, a r...
TRY plant trait database – enhanced coverage and open accessNARA Subscribed
Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodivers...
Aim Elucidating patterns in species responses to habitat fragmentation is an important focus of ecology and conservation, but studies are often geographically restricted, taxonomically narrow or use indirect measures of species vulnerability. We investigated predictors of species presence after fragmentation using data from studies around the world that included all four terrestrial vertebrate classes, thus allowing direct int...
Mechanistic insights into landscape genetic structure of two tropical amphibians using field‐derived resistance surfacesNARA Subscribed
Conversion of forests to agriculture often fragments distributions of forest species and can disrupt gene flow. We examined effects of prevalent land uses on genetic connectivity of two amphibian species in northeastern Costa Rica. We incorporated data from field surveys and experiments to develop resistance surfaces that represent local mechanisms hypothesized to modify dispersal success of amphibians, such as habitat‐specifi...
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