Selective predation on wing morphology in sympatric damselflies
Svensson, Erik LU
and Friberg, Magne
LU
(2007)
In American Naturalist
170(1).
p.101-112
- Abstract
- Although predation is thought to affect species divergence, 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 recognition. 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 Calopteryx virgo). Predation risk was almost three times higher for C. virgo, which has an... (More)
- Although predation is thought to affect species divergence, 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 recognition. 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 Calopteryx virgo). Predation risk was almost three times higher for C. virgo, which has an exaggerated degree of wing melanization, than it was for the less exaggerated, sympatric congener C. splendens. Selective predation on the exaggerated species C. virgo favored a reduction and redistribution of the wing melanin patch. There was evidence for nonlinear selection involving wing patch size, wing patch darkness, and wing length and width in C. splendens but weaker nonlinear selection on the same trait combinations in C. virgo. Selective predation could interfere with species divergence by sexual selection and may thus indirectly affect male interspecific interactions, reproductive isolation, and species coexistence in this genus. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/648179
- author
- Svensson, Erik
LU
and Friberg, Magne
LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- reproductive isolation, interspecific competition, correlational selection, indirect effects, speciation, species interactions
- in
- American Naturalist
- volume
- 170
- issue
- 1
- pages
- 101 - 112
- publisher
- University of Chicago Press
- external identifiers
-
- wos:000247527200011
- scopus:34250800830
- ISSN
- 0003-0147
- DOI
- 10.1086/518181
- language
- English
- LU publication?
- yes
- id
- fed9e666-2864-4749-b5a1-cc2780da25d9 (old id 648179)
- date added to LUP
- 2016-04-01 11:49:30
- date last changed
- 2023-01-02 23:55:46
@article{fed9e666-2864-4749-b5a1-cc2780da25d9,
abstract = {{Although predation is thought to affect species divergence, 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 recognition. 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 Calopteryx virgo). Predation risk was almost three times higher for C. virgo, which has an exaggerated degree of wing melanization, than it was for the less exaggerated, sympatric congener C. splendens. Selective predation on the exaggerated species C. virgo favored a reduction and redistribution of the wing melanin patch. There was evidence for nonlinear selection involving wing patch size, wing patch darkness, and wing length and width in C. splendens but weaker nonlinear selection on the same trait combinations in C. virgo. Selective predation could interfere with species divergence by sexual selection and may thus indirectly affect male interspecific interactions, reproductive isolation, and species coexistence in this genus.}},
author = {{Svensson, Erik and Friberg, Magne}},
issn = {{0003-0147}},
keywords = {{reproductive isolation; interspecific competition; correlational selection; indirect effects; speciation; species interactions}},
language = {{eng}},
number = {{1}},
pages = {{101--112}},
publisher = {{University of Chicago Press}},
series = {{American Naturalist}},
title = {{Selective predation on wing morphology in sympatric damselflies}},
url = {{http://dx.doi.org/10.1086/518181}},
doi = {{10.1086/518181}},
volume = {{170}},
year = {{2007}},
}