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  • Cited by 7
  • Print publication year: 2019
  • Online publication date: November 2019

9 - Demography and life history of five chimpanzee communities in Taï National Park

Summary

Demography and life-history data provide key information for our interpretation of the evolution and ecology of a species. Gathering reliable data can be a challenge, especially in species with long life spans such as the great apes. Only long-term field projects can compile trustworthy demography data, allowing us to access life-history measures. Here, we present the demography of four communities of wild chimpanzees (North, South, Middle and East Groups) located in Taï National Park, Côte d’Ivoire, following observations of individual chimpanzees for almost 40 years. We will provide demography data on birth, mortality, community size, age and sex ratios, among others, and translate these into life-history measures related to reproductive strategies (age of mother at birth of first infant, interbirth interval, etc.) and fitness (reproductive success, longevity, etc.). A comparison with available data from other long-term chimpanzee study sites will be made and we will discuss the life-history adaptations of Taï chimpanzees to the challenges they are facing.

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