Rylands, Anthony B.

Distributed in the Sundaland region (Thai-Malay Peninsula, Sumatra, Borneo, Java and adjacent smaller islands), langurs of the genus Presbytis are one of the most threatened groups of Asian primates. According to the IUCN Red List of Threatened Species, 24 of the 28 taxa (>85%) are threatened with extinction (listed as Critically Endangered, Endangered or Vulnerable). One taxon is classified as Near Threatened and one as Data Deficient. Only two Presbytis taxa are considered as Least Concern.

Back from the Brink celebrates the remarkable resolve of innumerable people and institutions to save the ever-rising numbers of threatened species. This volume highlights twenty-five species through spectacular photographs accompanied by descriptive profiles that mention species' threats, causes for their decline and the remarkable efforts that have saved them from extinction.

Here we report on the ninth iteration of the biennial listing of a consensus of the 25 primate species considered to be among the most endangered worldwide and the most in need of conservation measures. The 2016–2018 list of the world’s 25 most endangered primates has five species from Africa, six from Madagascar, nine from Asia, and five from the Neotropics. 

This report is the seventh iteration of the biennial listing of a consensus of the 25 primate species considered to be among the most endangered worldwide and the most in need of conservation measures. The list includes 5 species from Africa, 6 from Madagascar, 9 from Asia, and 5 from the Neotropics. This publication includes comprehensive information about the threats facing these primates, with bibliographic references cited in the text.