Long bone diaphyseal shape follows different ontogenetic trajectories in captive and wild gorillas

American Journal of Physical Anthropology
Stephanie L CaningtonChristopher B Ruff

Abstract

A number of studies have demonstrated the ontogenetic plasticity of long bone diaphyseal structure in response to mechanical loading. Captivity should affect mechanical loading of the limbs, but whether captive apes grow differently than wild apes has been debated. Here, we compare captive and wild juvenile and adult Gorilla to ascertain whether growth trajectories in cross-sectional diaphyseal shape are similar in the two environments. A sample of young juvenile (n = 4) and adult (n = 10) captive Gorilla gorilla gorilla specimens, with known life histories, were compared with age-matched wild G.g. gorilla (n = 62) and G. beringei beringei (n = 75) in relative anteroposterior to mediolateral bending strength of the femur, tibia, and humerus. Cross sections were obtained using peripheral quantitative CT. Captive and wild adult G.g. gorilla differed in bending strength ratios for all three bones, but these differences were not present in young juvenile G.g. gorilla. In comparisons across taxa, captive juvenile G.g. gorilla were more similar to wild G.g. gorilla than to G.b. beringei, while captive adult G.g. gorilla were more similar in shape to G.b. beringei in the hind limb. Captive and wild G. gorilla follow different ontogene...Continue Reading

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Citations

Mar 4, 2020·American Journal of Physical Anthropology·Peter A Stamos, Timothy D Weaver
Sep 2, 2020·American Journal of Physical Anthropology·Christine M HarperAdam D Sylvester
Jan 19, 2021·American Journal of Physical Anthropology·Kaya G ZelaznyChristopher B Ruff
Dec 29, 2020·American Journal of Physical Anthropology·Jason A NadellKris Kovarovic
Jun 12, 2019·Journal of Human Evolution·D MarchiC B Ruff
Apr 13, 2021·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Christine M HarperAdam D Sylvester
Jul 3, 2021·Animals : an Open Access Journal From MDPI·Aroa CasadoJosep Maria Potau
Oct 23, 2021·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Ellianna H ZackKenneth D Angielczyk

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