Improvements to the Red List Index.
作者： Stuart HM Butchart , H Resit Akçakaya , Janice Chanson , Jonathan EM Baillie , Ben Collen
DOI: 10.1371/JOURNAL.PONE.0000140
关键词: Conservation science 、 Statistics 、 IUCN Red List 、 Biology 、 Ecology 、 Red List Index 、 Living Planet Index 、 Value (computer science) 、 Biodiversity 、 Endangered species 、 Extinction
摘要: The Red List Index uses information from the IUCN to track trends in projected overall extinction risk of sets species. It has been widely recognised as an important component suite indicators needed measure progress towards international target significantly reducing rate biodiversity loss by 2010. However, further application RLI (to non-avian taxa particular) revealed some shortcomings original formula and approach: performs inappropriately when a value zero is reached; values are affected frequency assessments; newly evaluated species may introduce bias. Here we propose revision formula, recommend how it should be applied order overcome these shortcomings. Two additional advantages revisions that assessment errors not propagated through time, level can determined well this over time.
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