Considerable interspecific variation in female social relationships occurs in gregarious
primates, particularly with regard to agonism and cooperation between females and to the …

Primates, like other mammals, exhibit an annual reproductive pattern that ranges from strictly
seasonal breeding to giving birth in all months of the year, but factors mediating this …

This comprehensive introductory text integrates evolutionary, ecological, and demographic
perspectives with new results from field studies and contemporary noninvasive molecular …

Physical anthropologists use the term “fallback foods” to denote resources of relatively poor
nutritional quality that become particularly important dietary components during periods …

The concept of carrying capacity is fundamental in determining a species' density and
biomass, which enter into the equations used in ecological theory to predict species diversity …

This book describes one of our closest relatives, the orangutan, and the only extant great
ape in Asia. It is increasingly clear that orangutan populations show extensive variation in …

Predictions of ecological models on female social relationships (van Schaik 1989) and their
links with food distribution and the potential competitive regime are used to analyze the …

We tested the effects of age, sex, and season on the nutritional strategies of a group of
mountain gorillas (Gorilla beringei) in the Bwindi Impenetrable National Park, Uganda …

Accurate estimates of mass and size are important in a wide range of research questions in
population and evolutionary biology, and yet such data are still rare for wild primates. This …

Hypotheses about the evolution of gregariousness and social organisation in primates are
based on ecological explanations as well as on social factors such as conspecific threat …