@article{fdi:010066203, title = {{C}ondition dependence of male and female reproductive success : insights from a simultaneous hermaphrodite}, author = {{J}anicke, {T}. and {C}hapuis, {E}lodie}, editor = {}, language = {{ENG}}, abstract = {{S}exually selected traits are predicted to show condition dependence by capturing the genetic quality of its bearer. {I}n separate-sexed organisms, this will ultimately translate into condition dependence of reproductive success of the sex that experiences sexual selection, which is typically the male. {S}uch condition dependence of reproductive success is predicted to be higher in males than females under conditions promoting intense sexual selection. {F}or simultaneous hermaphrodites, however, sex allocation theory predicts that individuals in poor condition channel relatively more resources into the male sex function at the expense of the female function. {T}hus, male reproductive success is expected to be less condition dependent than female reproductive success. {W}e subjected individuals of the simultaneously hermaphroditic snail {P}hysa acuta to two feeding treatments to test for condition dependence of male and female reproductive success under varying levels of male-male competition. {C}ondition dependence was found for female, but not for male, reproductive success, meaning that selection on condition is relatively stronger through the female sex function. {T}his effect was consistent over both male-male competition treatments. {D}ecomposition of male and female reproductive performance revealed that individuals in poor condition copulated more in their male role, indicating an increased male allocation to mate acquisition. {T}hese findings suggest that sex-specific condition dependence of reproductive success is at least partially driven by condition-dependent sex allocation. {W}e discuss the implications of condition-dependent sex allocation for the evolution of sexually selected traits in simultaneous hermaphrodites.}, keywords = {{C}ondition ; food availability ; genic capture ; mating behavior ; sex allocation ; sexual selection ; simultaneous hermaphrodites}, booktitle = {}, journal = {{E}cology and {E}volution}, volume = {6}, numero = {3}, pages = {830--841}, ISSN = {2045-7758}, year = {2016}, DOI = {10.1002/ece3.1916}, URL = {https://www.documentation.ird.fr/hor/fdi:010066203}, }