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Consequences of Habitat Fragmentation on Age Structure and Life History in a Tortoise Population
César Aponte, Guillermo R. Barreto and John Terborgh
Vol. 35, No. 4 (Dec., 2003), pp. 550-555
Published by: Association for Tropical Biology and Conservation
Stable URL: http://www.jstor.org/stable/30043077
Page Count: 6
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We studied changes in a population of red-footed Amazonian tortoises, Geochelone carbonaria, consequent to isolation in an insular forest fragment. Altered age structure, population density, and body growth rate are shown here for the first time to be associated responses. Age structure was strongly biased toward juveniles and growth rates were reduced compared to the mainland. Our data suggest that density-dependent processes induced by habitat fragmentation changed demography and life history parameters in a scant 16 years.
Biotropica © 2003 Association for Tropical Biology and Conservation