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Title: Postcranial Skeletal Differences in Free‐Range and Captive‐Born Primates

Skeletal morphology is important in evolutionary, genetic, developmental, physiological, and functional studies. Although samples from free‐ranging individuals may be preferable, constraints of sample size, demography, or conservation status may necessitate the inclusion of captive‐born individuals. Captivity may be associated with physical, physiological, or behavioral differences that may affect skeletal form. This study assesses differences in postcranial skeletal form between free‐range and captive‐bornMacaca mulattaandSaguinus oedipus. Samples included free‐rangeM. mulattafrom Cayo Santiago (Caribbean Primate Research Center) and captive‐born macaques from the Wisconsin National Primate Research Center.S. oedipussamples included free‐range born and captive‐born individuals from the Oak Ridge Associated Universities Marmoset Research Center. Twenty‐four dimensions of various bones, including the scapula, upper limb, innominate and lower limb, were recorded for adults. Age of epiphyseal closure was recorded for immature captive‐bornM. mulatta. Analysis of variance and principal component analyses tested significant differences between free‐range born and captive‐born individuals in each species. Significant differences were present in size and shape of postcrania between free‐range and captive‐born within taxa. Free‐range macaques were larger than captive‐born macaques, but this pattern did not consistently carry over to theSaguinussamples. Shape differences, while present throughout the skeleton, were especially prominent in the scapula. Differences in developmental timing, nutrition, and physical activity can be expected to contribute to the observed differences in postcranial skeletal form. These differences should be considered when captive‐born primates are included in morphological or evolutionary studies. Anat Rec, 2018. © 2018 Wiley Periodicals, Inc. Anat Rec, 302:761–774, 2019. © 2018 Wiley Periodicals, Inc.

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Author(s) / Creator(s):
Publisher / Repository:
Wiley Blackwell (John Wiley & Sons)
Date Published:
Journal Name:
The Anatomical Record
Page Range / eLocation ID:
p. 761-774
Medium: X
Sponsoring Org:
National Science Foundation
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