This paper discusses the bearing of variations in certain aspects of social structure on the
survival and reproductive success of individuals. Possible factors limiting the female's size …

Gahtlan explicit and succinct statement of the supposed function of these two mechanisms
was that of Zuckerman [1932]:«The main factor that determines social groupings in sub …

In order to explain the variation in primate social systems, socio-ecology has focussed on
the role of ecological factors to explain female associations and relationships and on the …

The aim of this review is to present a coherent explanation of the ultimate causation and the
evolution of primary social systems. The explanation is based on the assumption that social …

This chapter examines attempts to integrate several of the preceding hypotheses into a more
general theory of social structure. It presents a few hypotheses relating to other aspects of …

Attempts to explain differences in the size and structure of primate groups have argued that
they are a consequence of variation in the intensity of feeding competition caused by …

Recently published field data on non‐human primate ecology and social behavior has
stimulated much discussion of the control exercised by different environments upon social …

Primate males have only recently returned to the center stage of socioecological research.
This review surveys new studies that examine variation in the behavior of adult males and …

Dominance hierarchies are presumed to evolve by individual selection from an evolutionary
compromise between intraspecific competition for resources and for mates. The hypothesis …

Social groups are maintained by communication between individuals, which is brought
about by a series of largely innately determined gestures and responses. The way in which …