Proximate Causes of Natal Dispersal in Female Yellow-bellied Marmots, Marmota flaviventris
Issue Date
2011-01-01Author
Armitage, Kenneth
Van Vuren, Dirk H.
Ozgul, Arpat
Oli, Madan K.
Publisher
Ecological Society of America
Type
Article
Article Version
Scholarly/refereed, publisher version
Rights
Copyright by the Ecological Society of America. This is the publisher's version, also available electronically from http://www.esa.org/esa/.
Metadata
Show full item recordAbstract
We investigated factors influencing natal dispersal in 231 female yearling yellow-bellied marmots (Marmota flaviventris) using comprehensive analysis of 10 years (1983–1993) of radiotelemetry and 37 years (1963–1999) of capture–mark–recapture data. Only individuals whose dispersal status was verified, primarily by radiotelemetry, were considered. Univariate analyses revealed that six of the 24 variables we studied significantly influenced dispersal: dispersal was less likely when the mother was present, amicable behavior with the mother and play behavior were more frequent, and spatial overlap was greater with the mother, with matriline females, and with other yearling females. Using both univariate and multivariate analyses, we tested several hypotheses proposed as proximate causes of dispersal. We rejected inbreeding avoidance, population density, body size, social intolerance, and kin competition as factors influencing dispersal. Instead, our results indicate that kin cooperation, expressed via cohesive behaviors and with a focus on the mother, influenced dispersal by promoting philopatry. Kin cooperation may be an underappreciated factor influencing dispersal in both social and nonsocial species.
ISSN
0012-9658Collections
Citation
Armitage, Kenneth; Van Vuren, Dirk H.; Ozgul, Arpat; Oli, Madan K. 2011. Proximate causes of natal dispersal in female yellow-bellied marmots, Marmota flaviventris. Ecology 92:218-227. http://dx.doi.org/10.1890/10-0109.1
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