PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 806510

Activity patterns in a gelada monkey group.

I S Bernstein
View original source ↗Export metadata ↓

Abstract

Diurnal, temperature and weather influence on the activity profiles of a gelada monkey group were compared to similar data previously reported for pigtail monkeys. Each of these variables influenced gelada behavior and many effects similar to those reported for pigtails were noted. Females were once again more active in agonistic, sexual and grooming patterns. The one male units of gelada groups influenced many activity patterns, and the special role of bachelor males as a focus for immature animal activities was demonstrated. Although 'aunt' behavior was present, it was superceded by patterns of 'paternal' care.

Explore related subjects

AggressionAnimalsAnimals, NewbornBehavior, AnimalFeeding BehaviorFemaleGroomingHaplorhiniHousing, AnimalHumansLocomotionMaleMaternal BehaviorPaternal BehaviorPlay and PlaythingsPregnancySex FactorsSexual Behavior, AnimalSocial BehaviorSocial DominanceSpatial BehaviorTemperatureTheropithecusTime FactorsVocalization, AnimalWeatherJournal ArticleResearch Support, U.S. Gov't, P.H.S.

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

I S Bernstein. 1975. Activity patterns in a gelada monkey group.. https://doi.org/10.1159/000155661

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed1992

Costs of deception: cheaters are punished in rhesus monkeys (Macaca mulatta).

From a functional perspective, deception can evolve in animal populations but should be constrained by the costs associated with detection. It then follows that withholding information should be more prevalent as a form of deception than active falsification of information because of the relative difficulties associated with detecting cheaters. Empirical studies of deception have focused on the benefits of cheating but have provided no data on the costs associated with being detected as a cheater. I present results from field experiments on rhesus monkeys (Macaca mulatta) which show that individuals discovering food announce their discoveries by calling on 45% of all trials. Discoverers who failed to call, but were detected with food by other group members, received significantly more aggression than vocal discoverers. Moreover, silent female discoverers ate significantly less food than vocal females. This demonstrates that there are significant costs to withholding information. Such costs may constrain the frequency with which deception occurs in this and other populations.

Aggression↗