Mating patterns and a test for female mate choice in Etheostoma spectabile (Pisces, Percidae)

摘要: Neither size nor breeding color correlated with spawning success of male orangethroat darters, Etheostoma spectabile (Pisces, Percidae), under natural field conditions. When females were presented experimentally a simultaneous choice they spent no more time in proximity to large than small males, and subsequently likely spawn males. Females also displayed preference for bright versus dull Males did not differ significantly size. may lack sexual dimorphism as result the female ineffectiveness attempts monopolize females, or selection be increased females. are dwarfs because sperm competition. Contest competition among males appeared important initiating spawnings but many obtained by participating ongoing events. is an example sexually dimorphic species evident color.