Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

Reducing Complex Diets to Simple Rules: Food Selection by Olive Baboons

Robert A. Barton and Andrew Whiten
Behavioral Ecology and Sociobiology
Vol. 35, No. 4 (1994), pp. 283-293
Published by: Springer
Stable URL: http://www.jstor.org/stable/4601011
Page Count: 11
  • Download ($43.95)
  • Cite this Item
Reducing Complex Diets to Simple Rules: Food Selection by Olive Baboons
Preview not available

Abstract

Determinants of diet in free-ranging baboons Papio anubis were investigated. Foods and non-foods differed significantly in chemical composition, the former being higher in protein and lower in fibre and phenolics. Within the range of items selected, biomass was found to be the single most important factor affecting percentage of total intake and time spent feeding (Figure 1). When this effect of biomass was statistically controlled, independent effects of chemical composition (primarily protein content) and harvesting rate were found. However, while the harvesting rates of foods were positively related to their percentage contribution to total intake, they were either uncorrelated, or, in one case, actually negatively correlated with the percentage of feeding time. A post-hoc model based on Charnov's (1976) marginal value theorem is developed to account for these latter results, and direct evidence for rate-maximising patch use is then presented. It is argued that the apparent complexity of primate diets may in large part be reducible to relatively simple optimization criteria.

Page Thumbnails

  • Thumbnail: Page 
[283]
    [283]
  • Thumbnail: Page 
284
    284
  • Thumbnail: Page 
285
    285
  • Thumbnail: Page 
286
    286
  • Thumbnail: Page 
287
    287
  • Thumbnail: Page 
288
    288
  • Thumbnail: Page 
289
    289
  • Thumbnail: Page 
290
    290
  • Thumbnail: Page 
291
    291
  • Thumbnail: Page 
292
    292
  • Thumbnail: Page 
293
    293