Assortative mating can limit the evolution of phenotypic plasticity
2014 (English)In: Evolutionary Ecology, ISSN 0269-7653, E-ISSN 1573-8477, Vol. 28, no 6, 1057-1074 p.Article in journal (Refereed) Published
Phenotypic plasticity, the ability to adjust phenotype to the exposed environment, isoften advantageous for organisms in heterogeneous environments. Although the degrees ofplasticity appear limited in nature, many studies have reported low costs of plasticity invarious species. Existing studies argue for ecological, genetic, or physiological costs orselection eliminating plasticity with high costs, but have not considered costs arising fromsexual selection. Here, we show that sexual selection caused by mate choice can impede theevolution of phenotypic plasticity in a trait used for mate choice. Plasticity can remain low tomoderate even in the absence of physiological or genetic costs, when individualsphenotypically adapted to contrasting environments through plasticity can mate with eachother and choose mates based on phenotypic similarity. Because the non-choosy sex (i.e.,males) with lower degrees of plasticity are more favored in matings by the choosy sex (i.e.,females) adapted to different environments, directional selection toward higher degrees ofplasticity is constrained by sexual selection. This occurs at intermediate strengths of femalechoosiness we tested. Our results demonstrate that mate choice is a potential source of anindirect cost to phenotypic plasticity.
Place, publisher, year, edition, pages
Springer, 2014. Vol. 28, no 6, 1057-1074 p.
assortative mating, disruptive selection, magic trait, mate choice, phenotypic diversification, phenotypic plasticity, sexual selection, individual-based model
Ecology Evolutionary Biology Other Mathematics
IdentifiersURN: urn:nbn:se:umu:diva-87674DOI: 10.1007/s10682-014-9728-5ISI: 000344075200006OAI: oai:DiVA.org:umu-87674DiVA: diva2:710344