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Behavioral Drive versus Behavioral Inertia in Evolution: A Null Model Approach

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dc.contributor.author Huey, Raymond B. en_US
dc.contributor.author Hertz, Paul E. en_US
dc.contributor.author Sinervo, B. en_US
dc.date.accessioned 2004-11-04T06:16:56Z en_US
dc.date.accessioned 2007-06-13T19:58:44Z
dc.date.available 2004-11-04T06:16:56Z en_US
dc.date.available 2007-06-13T19:58:44Z
dc.date.issued 2003-03 en_US
dc.identifier.citation Huey R. B., Hertz P. E. and Sinervo B. 2003. American Naturalist. 161(3): 357-366. en_US
dc.identifier.issn 0003-0147 en_US
dc.identifier.uri http://hdl.handle.net/1773/2016 en_US
dc.description.abstract Some biologists embrace the classical view that changes in behavior inevitably initiate or drive evolutionary changes in other traits, yet others note that behavior sometimes inhibits evolutionary changes. Here we develop a null model that quantifies the impact of regulatory behaviors (specifically, thermoregulatory behaviors) on body temperature and on performance of ectotherms. We apply the model to data on a lizard (Anolis cristatellus) and show that thermoregulatory behaviors likely inhibit selection for evolutionary shifts in thermal physiology with altitude. Because behavioral adjustments are commonly used by ectotherms to regulate physiological performance, regulatory behaviors should generally constrain rather than drive evolution, a phenomenon we call the “Bogert effect.” We briefly review a few other examples that contradict the classical view of behavior as the inevitable driving force in evolution. Overall, our analysis and brief review challenge the classical view that behavior is invariably the driving force in evolution, and instead our work supports the alternative view that behavior has diverse—and sometimes conflicting—effects on the directions and rates at which other traits evolve. en_US
dc.format.extent 164387 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.publisher University of Chicago Press en_US
dc.subject Anolis cristatellus en_US
dc.subject behavior en_US
dc.subject clines en_US
dc.subject null model en_US
dc.subject stasis en_US
dc.subject thermoregulation en_US
dc.title Behavioral Drive versus Behavioral Inertia in Evolution: A Null Model Approach en_US
dc.type Article en_US


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