Abstract:By imposing novel evolutionary pressures, biological invasions can favour rapid changes in intraspecific competitive mechanisms such as cannibalism. In their invasive range in Australia but not in their native range in South America, cane toads (Rhinella marina) exhibit high rates of cannibalism of embryos (eggs and hatchlings) by tadpoles. To explore the generality of such changes, we examined cannibalism in Japanese common toads (Bufo japonicus) on the islands of Honshu (native range) and Hokkaido (invasive … Show more
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