Thermal limits for the establishment and growth of populations of the invasive apple snail Pomacea canaliculata

摘要: Pomacea canaliculata is a South American freshwater snail considered as one of the world’s worst invasive alien species. A temperature around 25 °C has usually been to be optimal for rearing P. canaliculata. Nevertheless, snails have not reared under wide range temperatures reveal optimum performance in terms population increase. We investigated effect on growth, survival and reproduction, estimating demographic parameters at which these are active (15–35 °C). No reproductive activity was evidenced 15 °C, probably explained by small sizes attained this temperature. Temperatures above did promote significant acceleration growth so higher will result reduction time reach maturity. In fact, from 25 30 °C began reproduction same age. report here first detrimental high that provoked decrease contribution next generation: viability eggs very low exposed constant water 35 °C were unable produce eggs. Our findings new environmental constraint could determinant limits species invaded regions, especially during coming decades, anticipating scenario predicted global warming.