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Evolution of increased phenotypic diversity enhances population performance by reducing sexual harassment in damselflies.

Takahashi, Yuma; Kagawa, Kotaro; Svensson, Erik LU and Kawata, Masakado (2014) In Nature Communications 5.
Abstract
The effect of evolutionary changes in traits and phenotypic/genetic diversity on ecological dynamics has received much theoretical attention; however, the mechanisms and ecological consequences are usually unknown. Female-limited colour polymorphism in damselflies is a counter-adaptation to male mating harassment, and thus, is expected to alter population dynamics through relaxing sexual conflict. Here we show the side effect of the evolution of female morph diversity on population performance (for example, population productivity and sustainability) in damselflies. Our theoretical model incorporating key features of the sexual interaction predicts that the evolution of increased phenotypic diversity will reduce overall fitness costs to... (More)
The effect of evolutionary changes in traits and phenotypic/genetic diversity on ecological dynamics has received much theoretical attention; however, the mechanisms and ecological consequences are usually unknown. Female-limited colour polymorphism in damselflies is a counter-adaptation to male mating harassment, and thus, is expected to alter population dynamics through relaxing sexual conflict. Here we show the side effect of the evolution of female morph diversity on population performance (for example, population productivity and sustainability) in damselflies. Our theoretical model incorporating key features of the sexual interaction predicts that the evolution of increased phenotypic diversity will reduce overall fitness costs to females from sexual conflict, which in turn will increase productivity, density and stability of a population. Field data and mesocosm experiments support these model predictions. Our study suggests that increased phenotypic diversity can enhance population performance that can potentially reduce extinction rates and thereby influence macroevolutionary processes. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature Communications
volume
5
publisher
Nature Publishing Group
external identifiers
  • pmid:25034518
  • wos:000340623400013
  • scopus:84904644481
ISSN
2041-1723
DOI
10.1038/ncomms5468
project
BECC
language
English
LU publication?
yes
id
3b245382-7fc6-4d53-b5c8-da93bd8143fd (old id 4582137)
date added to LUP
2014-09-09 15:06:10
date last changed
2017-11-19 03:52:05
@article{3b245382-7fc6-4d53-b5c8-da93bd8143fd,
  abstract     = {The effect of evolutionary changes in traits and phenotypic/genetic diversity on ecological dynamics has received much theoretical attention; however, the mechanisms and ecological consequences are usually unknown. Female-limited colour polymorphism in damselflies is a counter-adaptation to male mating harassment, and thus, is expected to alter population dynamics through relaxing sexual conflict. Here we show the side effect of the evolution of female morph diversity on population performance (for example, population productivity and sustainability) in damselflies. Our theoretical model incorporating key features of the sexual interaction predicts that the evolution of increased phenotypic diversity will reduce overall fitness costs to females from sexual conflict, which in turn will increase productivity, density and stability of a population. Field data and mesocosm experiments support these model predictions. Our study suggests that increased phenotypic diversity can enhance population performance that can potentially reduce extinction rates and thereby influence macroevolutionary processes.},
  articleno    = {4468},
  author       = {Takahashi, Yuma and Kagawa, Kotaro and Svensson, Erik and Kawata, Masakado},
  issn         = {2041-1723},
  language     = {eng},
  publisher    = {Nature Publishing Group},
  series       = {Nature Communications},
  title        = {Evolution of increased phenotypic diversity enhances population performance by reducing sexual harassment in damselflies.},
  url          = {http://dx.doi.org/10.1038/ncomms5468},
  volume       = {5},
  year         = {2014},
}