Invasive species can decrease biodiversity and drive resident species to the brink of extinction. But how do these interlopers fare so well in unfamiliar territory? One idea is that they’ve escaped their enemies, for example, the parasites that keep them in check on their home turf. But a study in the journal Biology Letters [Jaimie Dick et al, http://bit.ly/dnRRRl ] suggests that notion doesn’t always stand up. Because at least one kind of invasive shrimp is an even bigger pest when it has a parasite on board. [More]
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