Why are there so many explanations for primate brain evolution?

RIM Dunbar, S Shultz - … of the Royal Society B: Biological …, 2017 - royalsocietypublishing.org
The question as to why primates have evolved unusually large brains has received much
attention, with many alternative proposals all supported by evidence. We review the main …

Social complexity and the fractal structure of group size in primate social evolution

RIM Dunbar, S Shultz - Biological Reviews, 2021 - Wiley Online Library
Compared to most other mammals and birds, anthropoid primates have unusually complex
societies characterised by bonded social groups. Among primates, this effect is …

Time as an ecological constraint

RIM Dunbar, AH Korstjens, J Lehmann… - Biological …, 2009 - Wiley Online Library
Conventional approaches to population biology emphasise the roles of climatic conditions,
nutrient flow and predation as constraints on population dynamics. We argue here that this …

Fission–fusion social systems as a strategy for coping with ecological constraints: a primate case

J Lehmann, AH Korstjens, RIM Dunbar - Evolutionary Ecology, 2007 - Springer
Fission–fusion social systems, in which members of a social community form frequently
changing subgroups, occur in a number of mammalian taxa. Such systems are assumed to …

Resting time as an ecological constraint on primate biogeography

AH Korstjens, J Lehmann, RIM Dunbar - Animal Behaviour, 2010 - Elsevier
Time constraints can limit an animal's potential to survive in a given habitat and the
maximum size of its group. Many studies have, therefore, investigated the ecological …

A geometric morphometric approach to the study of ecogeographical and clinal variation in vervet monkeys

A Cardini, AU Jansson, S Elton - Journal of Biogeography, 2007 - Wiley Online Library
Aim To examine and visualize clines in size and shape of Cercopithecus aethiops Linneus,
1758 (Primate, Cercopithecidae) skulls, and to investigate environmental factors which …

Within-species differences in primate social structure: evolution of plasticity and phylogenetic constraints

CA Chapman, JM Rothman - Primates, 2009 - Springer
Primate socioecological studies have attempted to derive general frameworks using the
average behavioural traits of species or genera to place them into categories. However, with …

Comparative Feeding Ecology of Two Communities of Chimpanzees (Pan troglodytes) in Kibale National Park, Uganda

KB Potts, DP Watts, RW Wrangham - International Journal of Primatology, 2011 - Springer
Several recent studies have documented considerable intraspecific and intrapopulation
ecological variation in primates. However, we generally lack an understanding of how such …

Fission-fusion and the evolution of hominin social systems

M Grove, E Pearce, RIM Dunbar - Journal of human evolution, 2012 - Elsevier
The course of hominin evolution has involved successive migrations towards higher
absolute latitudes over the past three million years. Poorer habitat quality further from the …

Small folivorous primate groups exhibit behavioral and physiological effects of food scarcity

TR Harris, CA Chapman, SL Monfort - Behavioral Ecology, 2010 - academic.oup.com
The influence of diet and food distribution on the socioecology of group-living species has
long been debated, particularly for primates. It has typically been assumed that folivorous …