Signal Crayfish - Pacifastacus leniusulus

When talk about invasive species includes mention of their parasites, stories usually focus on an absence of the later. In fact, when species invade new habitats, one of their biggest advantages is liberation from their usual “bugs.” There are several ways that invasive species escape their parasites, and studies show that relatively few are replaced by parasites native to invaded ecosystems . This means…

American Coot threatened by invasive snail.

The introduced of non-native species are one of the biggest threats to aquatic ecosystems, and their impacts are only made worse when pathogens come along for the ride. One example of this is the Eurasian faucet snail, a species that has been implicated in massive die-offs of waterfowl across the northeast. The Faucet Snail First of all, the exotic mollusk isn’t exactly…