![]() The Kanyawara data thus suggest an important downward revision in adult mortality rates for wild chimpanzees, but they do not challenge the existence of an important difference in adult mortality between humans and chimpanzees.įoragers Life history evolution Life table Wild chimpanzees.Ĭopyright © 2013 Elsevier Ltd. from non-A, non-B hepatitis patients was inoculated into chimpanzees and. The comparable adult mortality rate from a range of human foraging societies is ∼2%. 4 million deaths occur annually as a result of liver cirrhosis and cancer (23). We monitored births, deaths, immigrations, and emigrations in the community between 19. In this paper, I address the impact of hunting on the red colobus population at Ngogo. We present survivorship data from a relatively undisturbed and exceptionally large community of eastern chimpanzees (Pan troglodytes schweinfurthii) at Ngogo, Kibale National Park, Uganda. ![]() Life table data from Kanyawara indicate a mean mortality rate of 3.9% per year over the ages of 10-35, substantially less than the equivalent figure of 6.8% from a sample of other long-term chimpanzee study sites. dation by chimpanzees may be contributing to this decline. Kanyawara chimpanzees in this sample had a life expectancy at birth of 19 years, and individuals living to age 14 could expect to live for another 24 years. However, overall mortality rates were significantly lower than those reported from the long-term study sites of Gombe, Taï and Mahale. Sex differences in mortality at Kanyawara appeared similar to those reported from other sites. This community has shown modest growth over the past 25 years, avoiding some of the worst impacts of human contact. ![]() The comparable adult mortality rate from a range of human foraging societies is 2. Here we present a life table for chimpanzees living in the Kanyawara community of Kibale National Park, comprising 1129 individual risk years and 56 deaths. AIDS-like immunopathology in wild chimpanzees infected with. Life table data from Kanyawara indicate a mean mortality rate of 3.9 per year over the ages of 10-35, substantially less than the equivalent figure of 6.8 from a sample of other long-term chimpanzee study sites. Published mortality data, however, come primarily from chimpanzee populations that have recently suffered dramatic, human-induced declines, and exhibit rates of reproduction well below replacement. It is native to the Central African Republic, South Sudan, the Democratic Republic of the Congo, Uganda, Rwanda, Burundi, and Tanzania. Demographic data from wild chimpanzees are of considerable interest for understanding the evolution of the human life history. The eastern chimpanzee ( Pan troglodytes schweinfurthii) is a subspecies of the common chimpanzee. ![]()
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