The Effects of Perceived Mating Opportunities on Patterns of Reproductive Investment by Male Guppies
Luke T Barrett, Jonathan P Evans, Clelia Gasparini
PLoS One | PUBLIC LIBRARY SCIENCE | Published : 2014
Males pay considerable reproductive costs in acquiring mates (precopulatory sexual selection) and in producing ejaculates that are effective at fertilising eggs in the presence of competing ejaculates (postcopulatory sexual selection). Given these costs, males must balance their reproductive investment in a given mating to optimise their future reproductive potential. Males are therefore expected to invest in reproduction prudently according to the likelihood of obtaining future matings. In this study we tested this prediction by determining whether male reproductive investment varies with expected future mating opportunities, which were experimentally manipulated by visually exposing male g..View full abstract
Awarded by Marie Curie International Outgoing Fellowship within the European Community
Awarded by Australian Research Council
This research was funded by a student grant to L. T. B. from the School of Animal Biology at the University of Western Australia, a Marie Curie International Outgoing Fellowship within the 7th European Community Framework Programme (grant no. 272613) to C. G., and a Discovery Grant from the Australian Research Council to J.P.E. (grant no. DP120100773). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.