Ecologists predict impact of climate change on vulnerable species

As climate changes, many species are spreading beyond their historical ranges. Here biologists announce a method to predict which species decline as a result. Testing the method in Ontario, Canada, lakes where bass species have expanded northward with increasing temperatures, small fishes and fishes which rarely occurred with bass species were most likely to be lost where bass recently established. The method can predict losses due to competition and predation in a variety of organisms.