Abstract
Male and female chimpanzees from Gombe National Park, Tanzania (Pan troglodytes schweinfurthii) differ in live body weights but not in cranial capacity or fore-and hindlimb long bone lengths. Skeletal dimensions of the limbs and vertebral column indicate a mosaic of sex differences. Vertebral column measurements generally are greater in males. While linear measurements identify differences in the breadth and depth of the lower cervical and upper thoracic vertebrae, areal assessments show significant differences in weight-bearing surfaces throughout the thoracic and lumbar segments. These can be interpreted in terms of distribution of weight and body composition (i.e. amount of musculature).
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References
Doran, D. M. 1993. Sex differences in adult chimpanzee positional behavior: the influence of body size on locomotion and posture.Amer. J. Phys. Anthropol., 91: 99–115.
Doran, D. M.;Hunt, K. D. 1994. Comparative locomotor behavior of chimpanzees and bonobos. In:Chimpanzee Cultures,Wrangham,R. W.;McGrew,W. C.;de Waal,F. B. M.;Helting,P. G.;Marquart,L. A. (eds.), Harvard Univ. Press, Cambridge, Massachusetts, pp. 93–108.
Goodall, J. 1986.The Chimpanzees of Gombe: Patterns of Behavior. Harvard Univ. Press, Cambridge, Massachusetts.
Hunt, K. D. 1989. Positional behavior inPan troglodytes at the Mahale Mountains and the Gombe Stream National Parks, Tanzania. Ph.D. thesis, Univ. of Michigan, Michigan.
Hunt, K. D. 1991. Mechanical implications of chimpanzee positional behavior.Amer. J. Phys. Anthropol., 86: 521–536.
Hunt, K. D. 1992. Positional behavior ofPan troglodytes in the Mahale Mountains and Gombe Stream National Parks, Tanzania.Amer. J. Phys. Anthropol., 87: 83–105.
Jurmain, R. 1989. Trauma, degenerative disease, and other pathologies among Gombe chimpanzees.Amer. J. Phys. Anthropol., 80: 229–237.
Morbeck, M. E.;Galloway, A.;Zihlman, A. L. 1992. Gombe chimpanzee sex differences in the pelvis and observations of pubic and preauricular areas.Primates, 33: 129–132.
Morbeck, M. E.;Zihlman, A. L. 1989. Body size and proportions in chimpanzees, with special reference toPan troglodytes schweinfurthii from Gombe National Park, Tanzania.Primates, 30: 369–382.
Ruff, C. B.;Scott, W. W.;Liu, A. Y. -C. 1991. Articular and diaphyseal remodeling of the proximal femur with changes in body mass in adults.Amer. J. Phys. Anthropol., 86: 397–413.
Sanders, W. J. 1994. Function, allometry, and evolution of the Australopithecine lower precaudal spine. Ph.D. thesis, New York Univ., New York.
Schults, A. H. 1956. Postembryonic changes.Primatologia, 1: 887–964.
Schultz, A. H. 1961.Vertebral Column and Thorax, Primatologia IV (Lieferung 5). S. Karger, Basel/New York.
Shapiro, L. J. 1991. Functional morphology of the primate spine with special reference to orthograde posture and bipedal locomotion. Ph.D. thesis, State Univ. of New York, Stony Brook.
SPSS, 1998.SPSS-X User's Guide. SPSS, Chicago.
Wrangham, R. W.;Smuts, B. B. 1980. Sex differences in the behavioural ecology of chimpanzees in the Gombe National Park, Tanzania.J. Rep. Fertil. (suppl.), 28: 13–31.
Zihlman, A. L. in press. Natural history of apes: life history features in females and males. In:The Evolving Female: A Life History Perspective,Morbeck, M. E.; Galloway, A.; Zihlman, A. L. (eds.), Princeton Univ. Press, Princeton, New Jersey.
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Galloway, A., Morbeck, M.E. & Zihlman, A.L. Sex differences in the vertebral column of gombe chimpanzees. Primates 37, 443–455 (1996). https://doi.org/10.1007/BF02381378
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DOI: https://doi.org/10.1007/BF02381378