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Zoo Biology - 2022 - Curry - Body mass and growth rates in captive chimpanzees Pan troglodytes cared for in African.pdf (1.03 MB)

Body mass and growth rates in captive chimpanzees (Pan troglodytes ) cared for in African wildlife sanctuaries, zoological institutions, and research facilities

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posted on 2022-07-18, 16:00 authored by Bryony Curry, Aimee DraneAimee Drane, Rebeca Atencia, Yedra Feltrer, Glyn Howatson, Thalita Calvi, Christopher Palmer, Sophie Moittié, Steve Unwin, Joshua C. Tremblay, Meg M. Sleeper, Michael L. Lammey, Stephen-Mark Cooper, Michael StembridgeMichael Stembridge, Rob Shave

 Captive chimpanzees (Pan troglodytes) mature earlier in body mass and have a greater growth rate compared to wild individuals. However, relatively little is known about how growth parameters compare between chimpanzees living in different captive environments. To investigate, body mass was measured in 298 African sanctuary chimpanzees and was acquired from 1030 zoological and 442 research chimpanzees, using data repositories. An analysis of covariance, adjusting for age, was performed to assess same-sex body mass differences between adult sanctuary, zoological, and research populations. Piecewise linear regression was performed to estimate sex-specific growth rates and the age at maturation, which were compared between sexes and across populations using extra-sum-of-squares F tests. Adult body mass was greater in the zoological and resarch populations compared to the sanctuary chimpanzees, in both sexes. Male and female sanctuary chimpanzees were estimated to have a slower rate of growth compared with their zoological and research counterparts. Additionally, male sanctuary chimpanzees were estimated to have an older age at maturation for body mass compared with zoological and research males, whereas the age at maturation was similar across female populations. For both the zoological and research populations, the estimated growth rate was greater in males compared to females. Together, these data contribute to current understanding of growth and maturation in this species and suggest marked differences between the growth patterns of chimpanzees living in different captive environments. 


Natural Sciences and Engineering Research Council of Canada; International Doctoral Fellowship, University of British Columbia Okanagan; Canadian Foundation for Innovation


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Zoo Biology




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Curry, B.A., Drane, A.L., Atencia, R., Feltrer, Y., Howatson, G., Calvi, T., Palmer, C., Moittie, S., Unwin, S., Tremblay, J.C. and Sleeper, M.M., (2022) 'Body mass and growth rates in captive chimpanzees (Pan troglodytes) cared for in African wildlife sanctuaries, zoological institutions, and research facilities', Zoo Biology. DOI: 10.1002/zoo.21718

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Cardiff Met Affiliation

  • Cardiff School of Sport and Health Sciences

Cardiff Met Authors

Aimee Drane Stephen-Mark Cooper Mike Stembridge

Cardiff Met Research Centre/Group

  • Cardiovascular Physiology

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