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Article: Data on ethology detailed by researchers at Florida International University.(Report)
- Article from:
- Science Letter
- Article date:
- November 17, 2009
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"The strong impact of non-native predators in aquatic systems is thought to relate to the evolutionary naivete of prey. Due to isolation and limited dispersal, this naivete may be relatively high in freshwater systems," scientists in the United States report (see also Ethology).
"In this study, we tested this notion by examining the antipredator response of native mosquitofish, Gambusia holbrooki, to two non-native predators found in the Everglades, the African jewelfish, Hemichromis letourneuxi, and the Mayan cichlid, Cichlasoma urophthalmus. We manipulated prey naivete by using two mosquitofish populations that varied in their experience with the recent ...