Distribution Patterns of Tropical Plant Foods as an Evolutionary Stimulus to Primate Mental Development

Bibliographic Data

ID2455717
AuthorsKatharine Milton (Primate Conservation, corresponding author)
Year1981
Volume83
Issue3
Pages534-548
Publication date1981-09-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueAmerican Anthropologist (JOURNAL)
Journal identifiersISSN: 0002-7294 • E-ISSN: 1548-1433
PublisherWiley (PUBLISHER • GB)
DOI10.1525/aa.1981.83.3.02a00020
OpenAlexW2113940759
LanguageEN
Citations received97
References cited36

Primates are noted for their mental abilities but the selective basis for such traits has remained obscure. It is hypothesized that the element of predictability associated with the spatial and temporal distribution patterns of plant foods in tropical forests has served to stimulate mental development in primates taking much of their food from the first trophic level. Primates able to remember the locations and phenological patterns of a wide variety of plant foods could move directly to such foods when and where available without wasting time and energy in random search. This would enhance overall foraging success by lowering procurement costs associated with a varied and patchily distributed plant diet. Membership in a cohesive social unit, that utilized the same supplying area over many consecutive generations, would also enhance foraging success by serving to transmit important information about diet to close kin. Data on the foraging behavior of howler and spider monkeys are presented to test certain implications of this hypothesis. Similar selective pressures, but applied to foods from the second trophic level, may have been of critical importance in the mental development of hominids. [primates, evolution, intelligence, plant foods, Aleles, Alouatta

Biology · Foraging · Geography · Primate · Trophic level · Ecology · Primate Behavior and Ecology

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