Measuring Terrestrial Area of Habitat (AOH) and Its Utility for the IUCN Red List.
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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 risk 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 habitat loss and fragmentation. We recommend that IUCN Red List assessments document AOH wherever practical.
SubjectIUCN Red List
area of habitat
area of occupancy
extent of occurrence
extent of suitable habitat
Conservation of Natural Resources
Published Version (Please cite this version)10.1016/j.tree.2019.06.009
Publication InfoBrooks, Thomas M; Pimm, Stuart L; Akçakaya, H Resit; Buchanan, Graeme M; Butchart, Stuart HM; Foden, Wendy; ... Rondinini, Carlo (2019). Measuring Terrestrial Area of Habitat (AOH) and Its Utility for the IUCN Red List. Trends in ecology & evolution, 34(11). pp. 977-986. 10.1016/j.tree.2019.06.009. Retrieved from https://hdl.handle.net/10161/23520.
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Stuart L. Pimm
Doris Duke Distinguished Professor of Conservation Ecology in the Nicholas School of the Environment and Earth Sciences
Stuart Pimm is a world leader in the study of present-day extinctions and what can be done to prevent them. His research covers the reasons why species become extinct, how fast they do so, the global patterns of habitat loss and species extinction and, importantly, the management consequences of this research. Pimm received his BSc degree from Oxford University in 1971 and his Ph.D. from New Mexico State University in 1974. Pimm is the author of over 350 scientific papers and five books. He i
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