Policy ForumConservation

Averting Lemur Extinctions amid Madagascar's Political Crisis

Science  21 Feb 2014:
Vol. 343, Issue 6173, pp. 842-843
DOI: 10.1126/science.1245783

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  1. Male blue-eyed black lemur.

    Eulemur flavifrons in Sahamalaza–Iles Radama National Park.

    CREDIT: NORA SCHWITZER
  2. Lemur species richness-extinction risk index and priority conservation areas.

    Each species range was given a weighting according to its estimated extinction risk (the likelihood of a species becoming extinct in the near future, given current knowledge about population trends, range, and recent, current or projected threats, expressed by its 2012 IUCN Red List status (1, Least Concern; 2, Near Threatened; 3, Vulnerable or Data Deficient; 4, Endangered; 5, Critically Endangered). All lemur species' range weightings were summed to provide the richness-risk index, a composite measure of richness and estimated extinction risk. For example, where two Near Threatened species co-occur, there is a value of 4, and where two Critically Endangered species co-occur, the value is 10. The color spectrum represents the continuum from areas with low species richness and lower extinction risk to areas with high species richness and high extinction risk. Hatched areas indicate terrestrial protected areas. Green dots show locations of priority areas for lemur conservation digitized from the 2013 to 2016 conservation action plan (2).CAZ, Corridor Ankeniheny-Zahamena; COFAV, Corridor Fandriana-Vondrozo; TGK, Tsitongambarika. See supplementary materials for details.