What triggers ecological risk assessments for *Cherax destructor* in the United States?
Answer
Potential impact on native ecosystems
When the Common Yabby (*Cherax destructor*) is identified outside of Australia, such as in the United States, its presence necessitates immediate ecological risk assessments. These screenings are performed by environmental agencies, including bodies like the U.S. Fish and Wildlife Service, to evaluate the potential negative impacts this introduced species might have on the established native ecosystems. The focus shifts from natural thriving to mitigating potential harm from invasive establishment.
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