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ORIGINAL ARTICLE doi:10.1111/j.1558-5646.2007.00038.x
 

Summary: ORIGINAL ARTICLE
doi:10.1111/j.1558-5646.2007.00038.x
RAPID ADAPTATION TO A NOVEL HOST
IN A SEED BEETLE (CALLOSOBRUCHUS
MACULATUS): THE ROLE OF SEXUAL
SELECTION
Claudia Fricke,1,2,3
and G ¨oran Arnqvist1,4
1Evolutionary Biology Centre, Department of Ecology and Evolution, Animal Ecology, Uppsala University, Norbyv¨agen
18D, SE-752 36 Uppsala, Sweden
2E-mail: C.Fricke@uea.ac.uk
3Centre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ,
United Kingdom
4E-mail: Goran.Arnqvist@ebc.uu.se
Received June 7, 2006
Accepted October 19, 2006
Rapid diversification is common among herbivorous insects and is often the result of host shifts, leading to the exploitation of
novel food sources. This, in turn, is associated with adaptive evolution of female oviposition behavior and larval feeding biology.
Although natural selection is the typical driver of such adaptation, the role of sexual selection is less clear. In theory, sexual
selection can either accelerate or impede adaptation. To assess the independent effects of natural and sexual selection on the

  

Source: Arnqvist, Göran - Department of Animal Ecology, Uppsala Universitet

 

Collections: Environmental Sciences and Ecology