Locomotor versatility in the white-handed gibbon (Hylobates lar): a spatiotemporal analysis of the bipedal, tripedal, and quadrupedal gaits

Journal of Human Evolution
Evie VereeckePeter Aerts

Abstract

This study gives a qualitative and quantitative description of the different terrestrial locomotor modes of a group of white-handed gibbons (Hylobates lar) from the Wild Animal Park Planckendael, Belgium. The gibbons were filmed during voluntary locomotion on a grassy and smooth substrate and on a pole. These video images allowed us to define seven different gait types, based on spatial and temporal footfall patterns. Consequent digitization of the video images (n = 254) yielded duty factors, stride lengths, and stride frequencies of the fore- and hind limbs during locomotion at a wide range of speeds. These spatiotemporal gait characteristics were regressed against velocity, and the regression lines of the different gait types were compared. In addition, gibbon bipedalism was compared with bonobo (Pan paniscus) and human bipedalism. Gibbons appear to be very versatile animals, using a bipedal, tripedal, or quadrupedal gait during terrestrial travel with an overlapping speed range. The spatiotemporal characteristics of these gaits are largely similar, although they have clearly distinct footfall patterns. Bipedal walking on the pole is slightly different from terrestrial bipedalism, but differences between substrate types (gras...Continue Reading

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Citations

Aug 13, 2011·Biology Letters·Anthony J ChannonEvie E Vereecke
May 8, 2010·Journal of Anatomy·Anthony J ChannonEvie E Vereecke
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Apr 4, 2018·Proceedings of the National Academy of Sciences of the United States of America·Elaine E KozmaHerman Pontzer
Jun 15, 2018·Proceedings. Biological Sciences·Peter AertsEvie Vereecke
Jul 17, 2019·Journal of Anatomy·Marissa L BoettcherAdam Hartstone-Rose
Apr 24, 2020·Journal of Human Evolution·Biren A PatelTea Jashashvili
Jul 22, 2006·The Journal of Experimental Biology·Evie E VereeckePeter Aerts
Sep 9, 2006·Journal of Human Evolution·Evie E VereeckePeter Aerts
Jan 14, 2020·Cells, Tissues, Organs·Sawa TakeuchiHiroo Kumakura

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