Predicting the ecological impacts of a new freshwater invader: functional responses and prey selectivity of the ‘killer shrimp’,Dikerogammarus villosus, compared to the nativeGammarus pulex

Predicting the ecological impacts of a new freshwater invader: functional responses and prey selectivity of the ‘killer shrimp’,Dikerogammarus villosus, compared to the nativeGammarus pulex