نتایج جستجو برای: iucn red list

تعداد نتایج: 261354  

Journal: :Oryx 2023

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Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Holly P Jones Nick D Holmes Stuart H M Butchart Bernie R Tershy Peter J Kappes Ilse Corkery Alfonso Aguirre-Muñoz Doug P Armstrong Elsa Bonnaud Andrew A Burbidge Karl Campbell Franck Courchamp Philip E Cowan Richard J Cuthbert Steve Ebbert Piero Genovesi Gregg R Howald Bradford S Keitt Stephen W Kress Colin M Miskelly Steffen Oppel Sally Poncet Mark J Rauzon Gérard Rocamora James C Russell Araceli Samaniego-Herrera Philip J Seddon Dena R Spatz David R Towns Donald A Croll

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...

2008
H. Resit AKÇAKAYA Stuart H. M. BUTCHART Georgina M. MACE Simon N. STUART Craig HILTON-TAYLOR

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...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2006
Liana N Joseph Scott A Field Chris Wilcox Hugh P Possingham

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...

Journal: :Turkish journal of biodiversity 2021

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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