| Presentation Detail
Behavior and Social Evolution Dosmann, Andy [1], Brooks, Katie [2], Mateo, Jill [1]. Phenotypic integration dictated by glucocorticoid receptors underlies adaptive animal personality in a wild mammal. Natural selection often produces phenotypic variation, but the role of natural selection in generating and maintaining individual differences in consistent, correlated behaviors, known as animal personality, remains unclear. Recent models explaining this pattern of behavioral variation propose that the physiological architecture underlying behavior plays a key role in how natural selection produces animal personality. Here we show that circulating glucocorticoids binding with glucocorticoid receptors dictate the relationships between multiple behaviors and innate immunity in Belding’s ground squirrels (Urocitellus beldingi). When we include glucocorticoid levels in an analysis of selection on the behaviors in a wild population of U. beldingi, correlational selection favors combinations of those traits in such a way that supports the evolutionary emergence and maintenance of animal personality.Together, these novel results clarify how natural selection operates on behavior and its physiological architecture to produce consistent, correlated behaviors in the wild.
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1 - The University of Chicago, Committee on Evolutionary Biology, 940 E. 57th St., Chicago, IL, 60637, USA
2 - The University of Chicago, 940 E. 57th St., Chicago, IL, 60637, USA
Keywords:
personality
Natural selection
Behavior
neuroendocrinology.
Presentation Type: Regular Oral Presentation
Session: 46
Location: Peruvian B/Snowbird Center
Date: Saturday, June 22nd, 2013
Time: 3:45 PM
Number: 46002
Abstract ID:625
Candidate for Awards:W.D. Hamilton Award for Outstanding Student Presentation |
