Locomotor ecology of wild orangutans (Pongo pygmaeus abelii) in the Gunung Leuser Ecosystem, Sumatra, Indonesia: a multivariate analysis using log-linear modelling

American Journal of Physical Anthropology
Susannah K S Thorpe, Robin H Crompton

Abstract

The large body mass and exclusively arboreal lifestyle of Sumatran orangutans identify them as a key species in understanding the dynamic between primates and their environment. Increased knowledge of primate locomotor ecology, coupled with recent developments in the standardization of positional mode classifications (Hunt et al. [1996] Primates 37:363-387), opened the way for sophisticated multivariate statistical approaches, clarifying complex associations between multiple influences on locomotion. In this study we present a log-linear modelling approach used to identify key associations between orangutan locomotion, canopy level, support use, and contextual behavior. Log-linear modelling is particularly appropriate because it is designed for categorical data, provides a systematic method for testing alternative hypotheses regarding interactions between variables, and allows interactions to be ranked numerically in terms of relative importance. Support diameter and type were found to have the strongest associations with locomotor repertoire, suggesting that orangutans have evolved distinct locomotor modes to solve a variety of complex habitat problems. However, height in the canopy and contextual behavior do not directly infl...Continue Reading

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Citations

Sep 17, 2010·Primates; Journal of Primatology·Shota KanamotoMasato Nakatsukasa
Aug 5, 2009·Proceedings of the National Academy of Sciences of the United States of America·Susannah K S ThorpeRobin H Crompton
Apr 18, 2012·Proceedings of the National Academy of Sciences of the United States of America·Adam van CasterenA Roland Ennos
Apr 19, 2007·Biology Letters·S K S ThorpeR McN Alexander
Sep 22, 2010·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Robin Huw CromptonSusannah K S Thorpe
Mar 19, 2014·Journal of Human Evolution·Thomas S KraftNathaniel J Dominy
Sep 10, 2015·Proceedings of the National Academy of Sciences of the United States of America·Nathan M YoungZeresenay Alemseged
May 15, 2016·Journal of Human Evolution·David J GreenPhilipp Gunz
Jul 22, 2009·Journal of Anatomy·Motoharu OishiMasao Asari
Aug 2, 2006·Journal of Anatomy·Karin IslerRobin H Crompton
Jun 10, 2006·Journal of Anatomy·R C PayneK D'Août
Aug 10, 2011·American Journal of Physical Anthropology·J P Myatt, S K S Thorpe
Aug 24, 2012·American Journal of Primatology·Kirsten L ManduellSusannah K S Thorpe
Apr 7, 2011·American Journal of Physical Anthropology·Kirsten L ManduellSusannah K S Thorpe
Sep 4, 2013·American Journal of Physical Anthropology·David J Green
Feb 15, 2013·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Biren A PatelJason M Organ
Oct 24, 2014·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·David J GreenPhilipp Gunz
Nov 6, 2009·American Journal of Physical Anthropology·Erin R VogelNathaniel J Dominy
Jan 22, 2015·American Journal of Physical Anthropology·David J GreenPhilipp Gunz
Oct 18, 2013·American Journal of Physical Anthropology·Trenton W Holliday, Lukáš Friedl
Apr 1, 2016·Scientific Reports·Huaiqing Deng, Jiang Zhou
Sep 30, 2014·American Journal of Physical Anthropology·Mary L BlanchardRobin H Crompton
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May 6, 2016·Journal of Human Evolution·Adam van CasterenPeter W Lucas
Jul 15, 2015·PloS One·Jackie ChappellSusannah K S Thorpe
Jan 20, 2005·Journal of Human Evolution·Tanya Suzanne Carey, Robin Huw Crompton
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Aug 5, 2015·American Journal of Physical Anthropology·Nicole Squyres, Valerie Burke DeLeon
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Nov 9, 2018·American Journal of Physical Anthropology·Liza J Shapiro, Addison D Kemp
Apr 18, 2006·American Journal of Physical Anthropology·Susannah K S Thorpe, Robin H Crompton
Sep 27, 2007·American Journal of Primatology·Helga H Peters, Lesley J Rogers

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