نتایج جستجو برای: endangered
تعداد نتایج: 14408 فیلتر نتایج به سال:
To develop effective management strategies for the recovery of threatened and endangered species, it is critical to identify those vital rates (survival and reproductive parameters) responsible for poor population performance and those whose increase will most efficiently change a population's trajectory. In actual application, however, approaches identifying key vital rates are often limited b...
Abstract Indigenous language endangerment is a global crisis, and in response, normative “endangered languages” narrative about the crisis has developed. Though seemingly beneficent accurate many of its points, this can also cause harm to communities by furthering colonial logics that repurpose languages as objects for wider society's consumption, while deemphasizing or even outright omitting e...
Evidence of inbreeding depression is commonly detected from the fitness traits of animals, yet its effects on population growth rates of endangered species are rarely assessed. We examined whether inbreeding depression was affecting Sierra Nevada bighorn sheep (Ovis canadensis sierrae), a subspecies listed as endangered under the U.S. Endangered Species Act. Our objectives were to characterize ...
Demographic data are essential to assessments of the status of endangered species. However, establishing an integrated monitoring program to obtain useful data on contemporary and future population trends requires both the identification of priority areas and populations and realistic evaluations of the kinds of data that can be obtained under different monitoring regimes. We analyzed all known...
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