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Invasive species are well documented to impact native species where they are introduced. In the Santa Monica Mountains, a native species of amphibian, the California newt (Taricha torosa) possesses a neurotoxin, tetrodotoxin (TTX) that is considered a chemical defense against predation but also appears to facilitate ecological processes and specifically affect freshwater macroinvertebrate behavior...
Toxic or noxious substances often serve as a means of chemical defense for numerous taxa. However, such compounds may also facilitate ecological or evolutionary processes. The neurotoxin, tetrodotoxin (TTX), which is found in newts of the genus Taricha, acts as a selection pressure upon predatory garter snakes, is a chemical cue to conspecific larvae, which elicits antipredator behavior, and may also...
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