Journal
TRENDS IN ECOLOGY & EVOLUTION
Volume 34, Issue 11, Pages 977-986Publisher
CELL PRESS
DOI: 10.1016/j.tree.2019.06.009
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The International Union for Conservation of Nature (IUCN) Red List of Threatened Species includes assessment of extinction risk for 98 512 species, plus documentation of their range, habitat, elevation, and other factors. These range, habitat and elevation data can be matched with terrestrial land cover and elevation datasets to map the species' area of habitat (AOH; also known as extent of suitable habitat; ESH). This differs from the two spatial metrics used for assessing extinction in the IUCN Red List criteria: extent of occurrence (EOO) and area of occupancy (AOO). AOH can guide conservation, for example, through targeting areas for field surveys, assessing proportions of species' habitat within protected areas, and monitoring loss and fragmentation. We recommend that IUCN Red List assessments document AOH wherever practical.
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