Conflict avoidance among rhesus monkeys: coping with short-term crowding

  title={Conflict avoidance among rhesus monkeys: coping with short-term crowding},
  author={Peter G. Judge and FRANS B. M. Waal},
  journal={Animal Behaviour},
Abstract Abstract. Two contrasting models were examined, each of which predicts a relationship between space and aggression in primates. A 'spatial density' model predicts that as spatial densities increase aggressive responses also increase. A more recent 'coping model' suggests that, over long periods of time, animals will adapt to crowded conditions by increasing appeasement behaviour and allogrooming to reduce social tension and the incidence of aggression. This study evaluated these models… 

Long-tailed macaques avoid conflicts during short-term crowding

It is suggested that long-tailed macaques adopt a “conflict-avoidance strategy” during short-term crowding to reduce the risk of severe aggression in an environment where interindividual distances are small by simply decreasing the level of activity.

Rhesus monkey behaviour under diverse population densities: coping with long-term crowding

Relationships between females and males were characterized by a coping pattern in which animals modified their behaviour in ways that may decrease aggression under crowded conditions, and female relationships with kin and non-kin were characterizedby increases in both aggression and friendly interactions as density increased.

Coping with Acute Crowding by Cebus apella

Intense aggression, play, and social grooming decreased significantly in crowded conditions, suggesting that capuchins avoid social encounters if spatially confined, and their strategy for coping with acute crowding via a decrease in all forms of social behavior is intermediate between chimpanzee and macaque strategies in similar experiments.

Effect of spatial crowding on aggressive behavior in a bonobo colony

Comparing the aggressive repertoire of a well-established bonobo colony during a crowded period in winter with those that occurred during an uncrowded control period in summer confirms the hypothesis that bonobos cope with the increase in tension created by crowding (medium-term duration) by applying a tension-reduction strategy.

Inhibition of social behavior in chimpanzees under high‐density conditions

This first study to investigate the short‐term effects of high population density on captive chimpanzees found a general decrease in adult social activity, including agonistic behavior, which can be interpreted as an inhibition strategy to reduce opportunities for conflict when interindividual distances are reduced.

Chimpanzees Cope with Temporary Reduction of Escape Opportunities

The ability to rapidly adopt an appropriate strategy and to inhibit aggression during such restriction seems to confirm findings of chimpanzees under high density conditions, and suggest that the chimpanzees may adopt a selective inhibition strategy when escape opportunities are limited.