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Zusatztext Every herpetologist interested in introduced species will need this book, and find it an inspiration for further study. Applied Herpetology 2004, Vo.2 No.1 Informationen zum Autor Sir Christopher Lever is an established historian and author of a series of well-respected monographs and more popular natural history books. He specialises in vertebrates that have been introduced to geographical areas other than their native ones. Previous books include 'Naturalized Mammals of the World' and 'Naturalized Birds of the World', published by Longman, and 'Naturalized Fishes of the World', published by Academic Press. MA (Cantab), Fellow of the Linnean Society of London, Member of the IUCN (World Conservation Union) Species Survival Commission, Member of the Council of Ambassadors of WWF (Worldwide Fund for Nature). Klappentext This book describes how the various alien reptiles and amphibians now living in the wild throughout the world were first introduced, how they subsequently became naturalized, their present distribution and status in those countries to which they were introduced, and their ecological and socio-economic impact on the native biota and local economies. Many species have had a more or less neutral impact, being neither beneficial nor harmful. However, several have had a positive ecological or socio-economic impact, while some such as the cane toad, have had an extremely destructive effect.The criteria for inclusion of a species are that it should have been imported from its natural range to a new country by human agency--either accidentally or deliberately--and that it should currently be established in the wild in self-maintaining and self-perpetuating populations unsupported by and independent of mankind. Zusammenfassung Lever describes the introduction of each reptile and amphibian now living outside its natural range as a result of deliberate or accidental movement by humans.The impact (positive or negative) these alien species have had on the regions to which they have been introduced is also discussed. Inhaltsverzeichnis 1. Reptilia Testudinata (turtles, terrapins and tortoises) Crocodilia (alligators, crocodiles, caimans and gharials) Squamata (lizards and snakes) 2. Amphibia Anura (frogs and toads) Caudata (newts and salamanders) Appendix References Index ...
