Morphometric, Behavioral, and Genomic Evidence for a New Orangutan Species.

Details

Serval ID
serval:BIB_C61F769FC0B1
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Morphometric, Behavioral, and Genomic Evidence for a New Orangutan Species.
Journal
Current Biology
Author(s)
Nater A., Mattle-Greminger M.P., Nurcahyo A., Nowak M.G., de Manuel M., Desai T., Groves C., Pybus M., Sonay T.B., Roos C., Lameira A.R., Wich S.A., Askew J., Davila-Ross M., Fredriksson G., de Valles G., Casals F., Prado-Martinez J., Goossens B., Verschoor E.J., Warren K.S., Singleton I., Marques D.A., Pamungkas J., Perwitasari-Farajallah D., Rianti P., Tuuga A., Gut I.G., Gut M., Orozco-terWengel P., van Schaik C.P., Bertranpetit J., Anisimova M., Scally A., Marques-Bonet T., Meijaard E., Krützen M.
ISSN
1879-0445 (Electronic)
ISSN-L
0960-9822
Publication state
Published
Issued date
2017
Peer-reviewed
Oui
Volume
27
Number
22
Pages
3487-3498.e10
Language
english
Abstract
Six extant species of non-human great apes are currently recognized: Sumatran and Bornean orangutans, eastern and western gorillas, and chimpanzees and bonobos [1]. However, large gaps remain in our knowledge of fine-scale variation in hominoid morphology, behavior, and genetics, and aspects of great ape taxonomy remain in flux. This is particularly true for orangutans (genus: Pongo), the only Asian great apes and phylogenetically our most distant relatives among extant hominids [1]. Designation of Bornean and Sumatran orangutans, P. pygmaeus (Linnaeus 1760) and P. abelii (Lesson 1827), as distinct species occurred in 2001 [1, 2]. Here, we show that an isolated population from Batang Toru, at the southernmost range limit of extant Sumatran orangutans south of Lake Toba, is distinct from other northern Sumatran and Bornean populations. By comparing cranio-mandibular and dental characters of an orangutan killed in a human-animal conflict to those of 33 adult male orangutans of a similar developmental stage, we found consistent differences between the Batang Toru individual and other extant Ponginae. Our analyses of 37 orangutan genomes provided a second line of evidence. Model-based approaches revealed that the deepest split in the evolutionary history of extant orangutans occurred ∼3.38 mya between the Batang Toru population and those to the north of Lake Toba, whereas both currently recognized species separated much later, about 674 kya. Our combined analyses support a new classification of orangutans into three extant species. The new species, Pongo tapanuliensis, encompasses the Batang Toru population, of which fewer than 800 individuals survive. VIDEO ABSTRACT.

Keywords
Pongo tapanuliensis, Sundaland, Tapanuli orangutan, conservation, gene flow, great apes, morphometrics, phylogeography, population genomics, taxonomy
Pubmed
Web of science
Create date
15/11/2017 11:03
Last modification date
20/08/2019 15:41
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