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Measuring Terrestrial Area of Habitat (AOH) and Its Utility for the IUCN Red List

  • Thomas M. Brooks
  • , Stuart L. Pimm
  • , H. Resit Akçakaya
  • , Graeme M. Buchanan
  • , Stuart H.M. Butchart
  • , Wendy Foden
  • , Craig Hilton-Taylor
  • , Michael Hoffmann
  • , Clinton N. Jenkins
  • , Lucas Joppa
  • , Binbin V. Li
  • , Vivek Menon
  • , Natalia Ocampo-Peñuela
  • , Carlo Rondinini
  • International Union for Conservation of Nature and Natural Resources
  • University of the Philippines
  • University of Tasmania
  • Duke University
  • Royal Society for the Protection of Birds
  • BirdLife International
  • University of Cambridge
  • South African National Parks
  • Stellenbosch University
  • IUCN Red List Unit
  • Zoological Society of London Institute of Zoology
  • IPÊ (Instituto de Pesquisas Ecológicas; Institute for Ecological Research)
  • Microsoft USA
  • Duke Kunshan University
  • Wildlife Trust of India
  • Swiss Federal Institute of Technology Zurich
  • University of Rome La Sapienza

Research output: Contribution to journalReview articlepeer-review

308 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)977-986
Number of pages10
JournalTrends in Ecology and Evolution
Volume34
Issue number11
DOIs
StatePublished - Nov 2019

Keywords

  • IUCN Red List
  • area of habitat
  • area of occupancy
  • extent of occurrence
  • extent of suitable habitat
  • range map

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