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vol. 170, no. 1 the american naturalist july 2007 Selective Predation on Wing Morphology
 

Summary: vol. 170, no. 1 the american naturalist july 2007
Selective Predation on Wing Morphology
in Sympatric Damselflies
Erik I. Svensson1,* and Magne Friberg2
1. Section for Animal Ecology, Ecology Building, Lund University,
SE-223 62 Lund, Sweden;
2. Department of Zoology, Stockholm University, SE-106 91
Stockholm, Sweden
Submitted August 25, 2006; Accepted January 18, 2007;
Electronically published May 21, 2007
abstract: Although predation is thought to affect species diver-
gence, the effects of predator-mediated natural selection on species
divergence and in nonadaptive radiations have seldom been studied.
Wing melanization in Calopteryx damselflies has important functions
in sexual selection and interspecific interactions and in species rec-
ognition. The genus Calopteryx and other damselfly genera have also
been put forward as examples of radiations driven by sexual selection.
We show that avian predation strongly affects natural selection on
wing morphology and male wing melanization in two congeneric
and sympatric species of this genus (Calopteryx splendens and Cal-

  

Source: Agrell, Jep - Department of Ecology, Lunds Universitet
Svensson, Erik - Department of Ecology, Lunds Universitet

 

Collections: Environmental Sciences and Ecology