Habitat-specific variation in life-history traits, clonal population structure and parasitism in a freshwater snail (Potamopyrgus antipodarum)

aetiology age age differences ciclo vital digenea disease prevalence ecologia ecologie ecology edad etiologia etiologie freshwater fishes habitat habitats host parasite relations intermediate hosts life cycle life history new zealand nueva zelandia peces de agua dulce poisson d'eau douce population structure structure de la population