Mortality and fertility rates in humans and chimpanzees: how within-species variation complicates cross-species comparisons

http://onlinelibrary.wiley.com/doi/10.1002/ajhb.20890/epdf
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Links to Media http://onlinelibrary.wiley.com/doi/10.1002/ajhb.20890/epdf
Publication Type journal article
Creator Hawkes, Kristen
Other Author Smith, Ken R.; Robson, Shannen L.
Title Mortality and fertility rates in humans and chimpanzees: how within-species variation complicates cross-species comparisons
Date 2009-01-01
Description A grandmother hypothesis may explain why humans evolved greater longevity while continuing to end female fertility at about the same age as do the other great apes. With that grandmother hypothesis in mind, we sought to compare age-specific mortality and fertility rates between humans and chimpanzees, our closest living relatives, and found two puzzles. First, we expected that lower adult mortality in humans would be associated with slower senescence, but the rate of chimpanzee demographic aging falls within the human range. Second, we expected declines in age-specific fertility to be similar in the two species but instead of falling in the thirties as it does in women, fertility remains high into the forties in some chimpanzee populations. We report these puzzles using data from nine human populations and both wild and captive chimpanzees, and suggest that systematic differences in the heterogeneity of surviving adults may explain them.
Type InteractiveResource
Publisher Wiley-Blackwell
Journal Title American Journal of Human Biology
Volume 21
Issue 4
First Page 578
Last Page 586
DOI 10.1002/ajhb.20890
Language eng
Bibliographic Citation Hawkes, K., Smith, K. R., & Robson, S. L. (2009). Mortality and fertility rates in humans and chimpanzees: how within-species variation complicates cross-species comparisons. American Journal of Human Biology, 21(4), 578-86.
Rights Management (c) Wiley-Blackwell The definitive version is available at www3.interscience.wiley.com ; This is the pre-peer reviewed version of the following article: Hawkes, K., Smith, K. R., & Robson, S. L. (2009). Mortality and fertility rates in humans and chimpanzees: how within-species variation complicates Cross-species comparisons. American Journal of Human Biology, 21(4), 578-86, which has been published in final form at doi: 10.1002/ajhb.20890.
Format Medium application/html
Identifier uspace, 19332
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Date Created 2015-03-31
Date Modified 2015-03-31
ID 712891
Reference URL https://collections.lib.utah.edu/ark:/87278/s6s21bnc