نتایج جستجو برای: iucn red list
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More than US$21 billion is spent annually on biodiversity conservation. Despite their importance for preventing or slowing extinctions and preserving biodiversity, conservation interventions are rarely assessed systematically for their global impact. Islands house a disproportionately higher amount of biodiversity compared with mainlands, much of which is highly threatened with extinction. Inde...
Recent attempts at projecting climate change impacts on biodiversity have used the IUCN Red List Criteria to obtain estimates of extinction rates based on projected range shifts. In these studies, the Criteria are often misapplied, potentially introducing substantial bias and uncertainty. These misapplications include arbitrary changes to temporal and spatial scales; confusion of the spatial va...
Effective detection of population trend is crucial for managing threatened species. Little theory exists, however, to assist managers in choosing the most cost-effective monitoring techniques for diagnosing trend. We present a framework for determining the optimal monitoring strategy by simulating a manager collecting data on a declining species, the Chestnut-rumped Hylacola (Hylacola pyrrhopyg...
Habitatlar üzerinde devam eden baskı ile artan nüfus, endüstriyel ve kentsel gelişim, tarım uygulamaları, istilacı türlerin tehditleri iklim değişikliğinin etkileri birlikte bugün tehlike altında olmayan birçok tür, gelecekte büyük olasılıkla tehdit altına girecektir. Bu nedenle olan ya da tüm türler için yaşayabilir popülasyonların sürdürülmesini sağlamak amacı ortaya koyulan eylemler, yerinde...
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