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Morphometric, behavioral, and genomic evidence for a new orangutan species

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Lameira_2017_CurrentBiology_MorphoBehaveGeno_AAM.pdf (1.584Mb)
Date
20/11/2017
Author
Nater, Alexander
Mattle-Greminger, Maja P.
Nurcahyo, Anton
Nowak, Matthew G.
de Manuel, Marc
Desai, Tariq
Groves, Colin
Pybus, Marc
Sonay, Tugce Bilgin
Roos, Christian
R. Lameira, Adriano
Wich, Serge A.
Askew, James
Davila-Ross, Marina
Fredriksson, Gabriella
de Valles, Guillem
Casals, Ferran
Prado-Martinez, Javier
Goossens, Benoit
Verschoor, Ernst J.
Warren, Kristin S.
Singleton, Ian
Marques, David A.
Pamungkas, Joko
Perwitasari-Farajallah, Dyah
Rianti, Puji
Tuuga, Augustine
Gut, Ivo G.
Gut, Marta
Orozco-terWengel, Pablo
van Schaik, Carel P.
Bertranpetit, Jaume
Anisimova, Maria
Scally, Aylwyn
Marques-Bonet, Tomas
Meijaard, Erik
Krützen, Michael
Keywords
Great apes
Taxonomy
Tapanuli orangutan
Sundaland
Morphometrics
Population genomics
Gene flow
Phylogeography
Conservation
Pongo tapanuliensis
BF Psychology
QH301 Biology
QH426 Genetics
DAS
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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.
Citation
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 , R. Lameira , A , 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 2017 , ' Morphometric, behavioral, and genomic evidence for a new orangutan species ' , Current Biology , vol. 27 , no. 22 . https://doi.org/10.1016/j.cub.2017.09.047
Publication
Current Biology
Status
Peer reviewed
DOI
https://doi.org/10.1016/j.cub.2017.09.047
ISSN
0960-9822
Type
Journal article
Rights
© 2017 Elsevier Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.cub.2017.09.047
Description
This work was financially supported by University of Zurich (UZH) Forschungskredit grants FK-10 (M.P.M.-G.), FK-15-103 (A. Nater), and FK-14-094 (T.B.S.), Swiss National Science Foundation grant 3100A-116848 (M.K.and C.P.v.S.), the Leakey Foundation (M.P.M.-G.), the A.H. Schultz Foundation (M.K. and M.P.M.-G.), UZH Research Priority Program “Evolution in Action” (M.K.), Arcus Foundation grant G-PGM-1411-1112 (E.M.), Australian National University (ANU) research fund (A. Nurcahyo), an ANU Vice Chancellor Travel Grant (A. Nurcahyo), Australia Awards Scholarship-DFAT (A. Nurcahyo), ERC Starting Grant 260372 (T.M.-B.), EMBOYIP 2013 (T.M.-B.), MINECOBFU2014-55090-P, BFU2015-7116-ERC, BFU2015-6215-ERCU01, and MH106874 (T.M.-B.), Fundacio Zoo Barcelona (T.M.-B.), Julius–Klaus Foundation (M.K.), MINECO/FEDERBFU2016-77961-P (J.B. and M.P.), Gates Cambridge Trust (T.D.), and the Department of Anthropology at the University of Zurich.
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  • University of St Andrews Research
URL
https://doi.org/10.1016/j.cub.2017.11.020
URI
http://hdl.handle.net/10023/16375

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