The habitat templet and life history strategies of pond skaters (Heteroptera: Gerridae): reproductive potential, phenology, and wing dimorphism

摘要: Reproductive traits, diapause, and wing dimorphism of four pond skater species occurring in central Alberta, Canada, are explained as adaptive responses to a complex habitat features. Species using temporary habitats had greater fecundity, but permanence alone was poor predictor reproductive longevity, preoviposition period, or rate. Fecundity longevity were significantly lower more variable direct than diapaused breeders. There no geographical annual variation suggesting that values observed good measures potential. Overwintered females from (Gerris buenoi Limnoporus dissortis) lived longer those permanent (G. comatus G. pingreensis), and, concomitantly, able spread reproduction over several ponds. Proportion summer-generation bugs breeding without diapause inversely related for the Gerris species, few nondiapause breeder...