Fission-Fusion Dynamics in Southern Muriquis (Brachyteles arachnoides) in Continuous Brazilian Atlantic Forest

Show simple item record Coles, Rebecca C. Lee, Phyllis C. Talebi, Mauricio [UNIFESP] 2016-01-24T14:17:51Z 2016-01-24T14:17:51Z 2012-02-01
dc.identifier.citation International Journal of Primatology. New York: Springer, v. 33, n. 1, p. 93-114, 2012.
dc.identifier.issn 0164-0291
dc.description.abstract Fission-fusion social dynamics, the spatiotemporal variance in subunit size, composition, and cohesion, are the subject of considerable interest owing to their complex nature and widespread appearance in the primate order. We here aim to describe the nature of fission-fusion dynamics in a population of egalitarian southern muriquis inhabiting a relatively undisturbed extension of mildly seasonal Brazilian Atlantic forest to provide insights into the functions of fission-fusion dynamics and to examine the constraints on and opportunities for associations among individuals. We collected instantaneous scan samples and ad libitum data over a total of 13 mo in 2 yr (1599 observation hours) on subunit size at 2 spatiotemporal scales (party and nomadic party), party composition, spatial cohesion, and the behavioral context of fission-fusion events. These southern muriquis exhibited high levels of fission-fusion with significant variation in party size, cohesion, and composition. the group was weakly cohesive with a small mean party size (3.74 adults, 5.32 all individuals) and nomadic party size (13.73 adults, 19.38 all individuals). Mixed parties were the most frequently observed party type, although the high frequency of all-male parties suggests strong relationships based on philopatry and a mating strategy under scramble competition. We compare fission-fusion dynamics across populations of Brachyteles and highlight the striking continuum of these dynamics in the genus. We make interspecific comparisons with Ateles and Pan, with well documented high levels of fission-fusion, and demonstrate interspecific variation and convergence in grouping patterns. en
dc.description.sponsorship University of Cambridge
dc.description.sponsorship Margot Marsh Biodiversity Foundation
dc.description.sponsorship Conservation International Brazil
dc.description.sponsorship Idea Wild
dc.description.sponsorship Manfred Hermsen Stiftung Foundation, Bremen, Germany
dc.description.sponsorship British Airways Assisting Conservation Bureau
dc.description.sponsorship Downing College and University of Cambridge, UK
dc.description.sponsorship WWF-Brazil
dc.format.extent 93-114
dc.language.iso eng
dc.publisher Springer
dc.relation.ispartof International Journal of Primatology
dc.rights Acesso restrito
dc.subject Brachyteles en
dc.subject Fission-fusion en
dc.subject Group cohesion en
dc.subject Party composition en
dc.subject Party size en
dc.title Fission-Fusion Dynamics in Southern Muriquis (Brachyteles arachnoides) in Continuous Brazilian Atlantic Forest en
dc.type Artigo
dc.contributor.institution Univ Stirling
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.contributor.institution Univ Cambridge
dc.description.affiliation Univ Stirling, Behav & Evolut Res Grp, Sch Nat Sci, Stirling FK9 4LA, Scotland
dc.description.affiliation Universidade Federal de São Paulo, Dept Ciencias Biol, São Paulo, Brazil
dc.description.affiliation Univ Cambridge, Dept Biol Anthropol, Cambridge CB2 1QH, England
dc.description.affiliationUnifesp Universidade Federal de São Paulo, Dept Ciencias Biol, São Paulo, Brazil
dc.identifier.doi 10.1007/s10764-011-9555-2
dc.description.source Web of Science
dc.identifier.wos WOS:000301979500006


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