Alien Freshwater Turtles in Greece: Citizen Science Reveals the Hydra-Headed Issue of the Pet Turtle Trade
2023
Konstantinos Kalaentzis | Christos Kazilas | Ilias Strachinis | Elias Tzoras | Petros Lymberakis
Citizen science is emerging as a powerful tool for the early detection of biological invasions. The exotic pet trade has been deemed as the most significant cause of establishment for reptiles, and among them, turtles have the highest number of introduction events. In Europe, at least 13 species of alien freshwater turtles have been recorded in the wild. In Greece, only two species of alien turtles have been reported, namely the American pond slider <i>Trachemys scripta</i> and the Florida cooter <i>Pseudemys floridana</i>. In this study, we provide an updated checklist of the alien freshwater turtles recorded in Greece, using citizen science, personal observations, and literature. Our results provide the first records for the country of five species, namely the Florida red-bellied cooter <i>Pseudemys nelsoni</i>, the Eastern river cooter <i>Pseudemys concinna</i>, the Chinese stripe-necked turtle <i>Mauremys sinensis</i>, the Chinese soft-shelled turtle <i>Pelodiscus sinensis,</i> and the Common snapping turtle <i>Chelydra serpentina</i> and new localities for <i>T. scripta</i>. Similar to the myth of the Lernaean Hydra (i.e., for every head chopped off, more would regrow), the pet turtle trade has been proven to have multiple heads.
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