Newts are Toxic, but they were Pressured into it: Butch Brodie's Studies of Co-Evolutionary Arms Races

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Co-evolutionary processes can be studied in particular circumstances when the selective pressure and response trait are readily identifiable and variation in selective pressures is apparent. The coevolution of tetrodotoxin production in prey (newts) and toxin resistance (snakes) has been studied in the western USA. by describing coincident trait variation in a predator-prey system across a geographic mosaic of selective pressure, and linking genotypic and phenotypic variation, the mechanisms of at least one co-evolutionary phenomenon have been revealed.


Document Type: Research Article

Publication date: November 1, 2013

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  • In 2004, the South Australian Museum and the Royal Society of South Australia became partners in Southern Scientific Press. This led to the amalgamation of their two professional journals. The Transactions of the Royal Society of South Australia now incorporates the Records of the South Australian Museum.
    Transactions of the Royal Society of South Australia deals with natural history relating to South Australia
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