Better Alone Than in Bad Company: Trophic Ecology of Co-Occurring Invasive and Native Crayfish.

ABSTRACT: The North American signal crayfish, Pacifastacus leniusculus, is one of the most successful invasive crayfish species in Europe. Its broad trophic niche and ability to exploit various food sources across different trophic levels, coupled with the spread of lethal crayfish disease, pose significant threats to native crayfish populations. However, documentation of co-occurrence between invasive signal crayfish and native crayfish in invaded freshwater ecosystems remains rare, and research on their coexistence remains limited. In an Italian stream, signal crayfish coexist with native, white-clawed crayfish, Austropotamobius pallipes. This study investigated the trophic ecology of signal crayfish and white-clawed crayfish at sites where they co-occurred versus those where they oc

SUBMITTER: Ghia D 

PROVIDER: S-EPMC12076067 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature