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Management efforts for endangered species are enhanced by knowledge of the causes and extent of demographic variation, but this information is often lacking even when abundance is well known. We developed an integrated population model to study the dynamics of the only remnant population of endangered whooping cranes (Grus americana) in North America, 1977–2013. Despite much conservation attention...
Habitat fragmentation and the creation of extensive edges have been postulated as causes of higher nest predation in many species of birds. In this study we tested the hypothesis that predation on upland duck nests was influenced by proximity to habitat edges in a fragmented agricultural landscape of the Canadian prairies. Nest success was independent of distance to wetland edge, road edge, or different...
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