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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Effects of food availability on serum insulin and lipid concentrations in free-ranging baboons
American Journal of Primatology, Volume 57, No. 1, Year 2002
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Description
The relationship between food availability and metabolic physiology was studied in groups of free-ranging baboons (Papio spp.) living in the Amboseli National Park and the Masai Mara National Reserve of Kenya. Three groups subsisted entirely on natural forage, while two other groups lived near tourist facilities and often consumed food wastes from these lodges. The refuse provided a very accessible food source with relatively high caloric density. Consumption of the refuse was associated with reduced locomotion. Sexually mature individuals from all five groups were sedated surreptitiously in the early morning and blood samples were collected. Compared to animals foraging exclusively in the wild, animals that supplemented their diet with the refuse items had two- to threefold elevations in serum insulin concentrations, as well as increased total cholesterol (C), HDL-C, and VLDL+LDL-C levels. No sex differences in physiological measures were observed except in body mass. Elevated serum insulin, and cholesterol and lipoprotein concentrations influence the development of cardiovascular disease and have been shown to be subject to dietary manipulation and exercise under controlled conditions. The present results suggest potentially deleterious effects of a highly accessible, calorically dense food source, and associated reduction of physical activity for baboons living in an otherwise natural environment. © 2002 Wiley-Liss, Inc.
Authors & Co-Authors
Kemnitz, Joseph W.
United States, Madison
Wisconsin National Primate Research Center
Sapolsky, Robert M.
Kenya, Nairobi
National Museums of Kenya
United States, Palo Alto
Stanford University
Altmann, Jeanne
Kenya, Nairobi
National Museums of Kenya
United States, Princeton
Princeton University
United States, Brookfield
Brookfield Zoo
Muruthi, Philip M.
Kenya, Nairobi
National Museums of Kenya
Kenya, Nairobi
African Wildlife Foundation
Mott, Glen E.
United States, San Antonio
The University of Texas at San Antonio
Stefanick, Marcia L.
United States, Palo Alto
Stanford University
Statistics
Citations: 52
Authors: 6
Affiliations: 7
Identifiers
Doi:
10.1002/ajp.1083
ISSN:
02752565
Research Areas
Food Security
Noncommunicable Diseases
Study Locations
Kenya