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The Chimpanzees of Gombe: Patterns of Behavior
Dr. Goodall crowns her first quarter-century with the chimpanzees of Gombe by giving a comprehensive, up-to-date account of her work, a grand synthesis of animal behavior that presents a vast amount
Cultures in chimpanzees
It is found that 39 different behaviour patterns, including tool usage, grooming and courtship behaviours, are customary or habitual in some communities but are absent in others where ecological explanations have been discounted.
Kin selection, social structure, gene flow, and the evolution of chimpanzees.
Sequence variation patterns at two mitochondrial loci indicate historically high long-distance gene flow and clarify the relationships among three allopatric subspecies and imply that P. t.
Cultural variation among chimpanzee communities or unit-groups at nine long-term study sites was charted through a systematic, collaborative procedure in which the directors of the sites first agreed
Mortality rates among wild chimpanzees.
A synthetic life table for free-living chimpanzees, derived from data collected in five study populations, suggests the low mortality rate of human foragers relative to chimpanzees in the early adult years may partially explain why humans have evolved to senesce later than chimpanzees, and have a longer juvenile period.
Noninvasive paternity assignment in Gombe chimpanzees
While there is a positive relationship between male rank and reproductive success, it is demonstrated that a range of male mating strategies (possessiveness, opportunistic mating and consortships) can lead to paternity across all male ranks.
The influence of dominance rank on the reproductive success of female chimpanzees.
Given the foraging behavior of chimpanzees, high rank probably influences reproductive success by helping females establish and maintain access to good foraging areas rather than by sparing them stress from aggression.
Patterns of predation by chimpanzees on red colobus monkeys in Gombe National Park, 1982-1991.
Predatory patterns in wild chimpanzees are important evidence in the continuing debate about the role of hunting in the behavior of early hominids, and hunting showed a strong "binge" tendency from 1982 to 1991.
Female competition and male territorial behaviour influence female chimpanzees' ranging patterns
The results suggest that female ranging patterns are influenced by both feeding competition and male territorial behaviour, which supports the male-bonded model of the chimpanzee social system, over the bisexual or male-only community models.
Increased mortality and AIDS-like immunopathology in wild chimpanzees infected with SIVcpz
It is shown that SIVcpz, the immediate precursor of HIV-1, is pathogenic in free-ranging chimpanzees, and the prevailing view that all natural SIV infections are non-pathogenic is challenged and suggested to have a substantial negative impact on the health, reproduction and lifespan of chimpanzees in the wild.