A case of intercommunity lethal aggression by chimpanzees in an open and dry landscape, Issa Valley, western Tanzania.

ABSTRACT: Intercommunity (lethal) aggression is a familiar component of the behavioural repertoire of many forest-dwelling chimpanzee (Pan troglodytes) communities. However, until now, the absence of intercommunity attacks - including killings - in communities that live in open, mosaic environments has supported hypotheses of reduced resource competition in drier habitats, and informed referential models of early hominin social dynamics in a similar habitat. In June 2020, we observed the first instance of intercommunity lethal aggression, a male-committed infanticide, by the Issa chimpanzee community, which live in a savannah-mosaic habitat in the Issa Valley, western Tanzania. The carcass was recovered by researchers after it was abandoned by the attackers. Here, we give a detailed account of the e

SUBMITTER: Drummond-Clarke RC 

PROVIDER: S-EPMC10651548 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature