Footfall patterns, stride length and speed of vertical climbing in spider monkeys (Ateles fusciceps robustus) and woolly monkeys (Lagothrix lagotricha)

Folia primatologica; international journal of primatology
Karin Isler

Abstract

Vertical climbing is central to theories surrounding the locomotor specialisations of large primates. In this paper, we present spatiotemporal gait parameters obtained from video recordings of captive spider monkeys (Ateles fusciceps robustus) and woolly monkeys (Lagothrix lagotricha) in semi-natural enclosures, with the aim of discovering the influence of body weight and differences in general locomotor behaviour on vertical climbing kinematics on various substrates. Results show that there are only few differences between gait parameters of climbing on thin trees, vertical and oblique ropes, while climbing on large-diameter trees differs considerably, reflecting the higher costs of locomotion on the latter. At the same speed, Ateles takes longer strides and the support phase takes a smaller percentage of cycle duration than in Lagothrix. Footfall patterns are more diverse in Ateles and include a higher proportion of ipsilateral limb coupling. Compared to other primates, the gait characteristics of vertical climbing of atelines most closely resemble those of African apes.

Citations

Mar 1, 2006·Primates; Journal of Primatology·Pablo R Stevenson
Apr 14, 2006·Folia primatologica; international journal of primatology·Karin Isler, Cyril C Gruter
Apr 13, 2011·American Journal of Physical Anthropology·Jandy B Hanna, Daniel Schmitt
Dec 5, 2018·The Journal of Experimental Biology·Michael C GranatoskyJandy Hanna
Oct 19, 2019·American Journal of Physical Anthropology·Noah T DunhamJesse W Young
Nov 2, 2020·Morphologie : Bulletin De L'Association Des Anatomistes·L S AndradeL C Prasanna

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