Behavioral flexibility and the evolution of primate social states.

Comparative approaches to the evolution of primate social behavior have typically involved two distinct lines of inquiry. One has focused on phylogenetic analyses that treat social traits as static, species-specific characteristics; the other has focused on understanding the behavioral flexibility o...

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Main Authors: Karen B Strier, Phyllis C Lee, Anthony R Ives
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4254976?pdf=render
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author Karen B Strier
Phyllis C Lee
Anthony R Ives
author_facet Karen B Strier
Phyllis C Lee
Anthony R Ives
author_sort Karen B Strier
collection DOAJ
description Comparative approaches to the evolution of primate social behavior have typically involved two distinct lines of inquiry. One has focused on phylogenetic analyses that treat social traits as static, species-specific characteristics; the other has focused on understanding the behavioral flexibility of particular populations or species in response to local ecological or demographic variables. Here, we combine these approaches by distinguishing between constraining traits such as dispersal regimes (male, female, or bi-sexual), which are relatively invariant, and responding traits such as grouping patterns (stable, fission-fusion, sometimes fission-fusion), which can reflect rapid adjustments to current conditions. Using long-term and cross-sectional data from 29 studies of 22 species of wild primates, we confirm that dispersal regime exhibits a strong phylogenetic signal in our sample. We then show that primate species with high variation in group size and adult sex ratios exhibit variability in grouping pattern (i.e., sometimes fission-fusion) with dispersal regime constraining the grouping response. When assessing demographic variation, we found a strong positive relationship between the variability in group size over time and the number of observation years, which further illustrates the importance of long-term demographic data to interpretations of social behavior. Our approach complements other comparative efforts to understand the role of behavioral flexibility by distinguishing between constraining and responding traits, and incorporating these distinctions into analyses of social states over evolutionary and ecological time.
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spelling doaj.art-9cb065e76b41445aa557b6a9e5ff7e732022-12-22T01:29:25ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-01912e11409910.1371/journal.pone.0114099Behavioral flexibility and the evolution of primate social states.Karen B StrierPhyllis C LeeAnthony R IvesComparative approaches to the evolution of primate social behavior have typically involved two distinct lines of inquiry. One has focused on phylogenetic analyses that treat social traits as static, species-specific characteristics; the other has focused on understanding the behavioral flexibility of particular populations or species in response to local ecological or demographic variables. Here, we combine these approaches by distinguishing between constraining traits such as dispersal regimes (male, female, or bi-sexual), which are relatively invariant, and responding traits such as grouping patterns (stable, fission-fusion, sometimes fission-fusion), which can reflect rapid adjustments to current conditions. Using long-term and cross-sectional data from 29 studies of 22 species of wild primates, we confirm that dispersal regime exhibits a strong phylogenetic signal in our sample. We then show that primate species with high variation in group size and adult sex ratios exhibit variability in grouping pattern (i.e., sometimes fission-fusion) with dispersal regime constraining the grouping response. When assessing demographic variation, we found a strong positive relationship between the variability in group size over time and the number of observation years, which further illustrates the importance of long-term demographic data to interpretations of social behavior. Our approach complements other comparative efforts to understand the role of behavioral flexibility by distinguishing between constraining and responding traits, and incorporating these distinctions into analyses of social states over evolutionary and ecological time.http://europepmc.org/articles/PMC4254976?pdf=render
spellingShingle Karen B Strier
Phyllis C Lee
Anthony R Ives
Behavioral flexibility and the evolution of primate social states.
PLoS ONE
title Behavioral flexibility and the evolution of primate social states.
title_full Behavioral flexibility and the evolution of primate social states.
title_fullStr Behavioral flexibility and the evolution of primate social states.
title_full_unstemmed Behavioral flexibility and the evolution of primate social states.
title_short Behavioral flexibility and the evolution of primate social states.
title_sort behavioral flexibility and the evolution of primate social states
url http://europepmc.org/articles/PMC4254976?pdf=render
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