Els Ton

TL;DR: It is shown that rainforest anthrax is a persistent and widespread cause of death for a broad range of mammalian hosts and predicted that this pathogen will accelerate the decline and possibly result in the extirpation of local chimpanzee populations.

TL;DR: The ritualized behavioural display and collection of artefacts at particular locations observed in chimpanzee accumulative stone throwing may have implications for the inferences that can be drawn from archaeological stone assemblages and the origins of ritual sites.

TL;DR: The IUCN SSC Ape Populations, Environments and Surveys (A.P.E.S) database as mentioned in this paper was created as a repository for data on great apes and other primate taxa.

TL;DR: Chimpanzee terrestrial nocturnal activity appears widespread yet infrequent, which suggests a consolidated sleeping pattern, and it is suggested that chimpanzee noCTurnal activity is flexible, enabling them to respond to changing environmental factors.

TL;DR: In this paper, a dataset of 17,109 chimpanzee survey transects (10,929 km) across nine countries and linked them to a range of social and ecological variables, and found that the western chimpanzee seemed to persist within three social-ecological configurations: first, rainforest habitats with a low degree of human impact, second, steep areas, and third, areas with high prevalence of hunting taboos.