It is very successful and adaptable, and is an invasive species in many areas. Recent studies show that it is not impacted by the herbicide atrazine. Chytridiomycosis was detected in museum specimens of this species dating back to 1938, and it is hypothesized that the international trade in this species might have introduced this fungal disease to other regions of the world. The disease does not appear to have any detrimental affect on populations of this species.
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