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Invasive African clawed frog Xenopus laevis in southern South America: key factors and predictions

Authordc.contributor.authorLobos, Gabriel 
Authordc.contributor.authorCattan Ayala, Pedro es_CL
Authordc.contributor.authorEstades Marfán, Cristián es_CL
Authordc.contributor.authorJaksic, Fabian M. es_CL
Cita de ítemdc.identifier.citationStudies on Neotropical Fauna and Environment Vol. 48, No. 1, 1–12en_US
Identifierdc.identifier.otherDOI: 10.1080/01650521.2012.746050
General notedc.descriptionArtículo de publicación ISIen_US
Abstractdc.description.abstractThe African clawed frog Xenopus laevis is one of the most widely distributed amphibians in the world. It has invaded an area of approximately 21,200 km2 since its naturalization in Chile in the early 1980s. Currently, there is scant knowledge on the factors and processes underlying its distributional pattern.We constructed a bioclimatic niche model considering areas susceptible to be invaded (coarse model). At a local scale, we explored topographic, ecological, and anthropic variables, to identify which of these have the greatest predictive power for the expansion of this African species in southern South America. Not surprisingly, the projection of the distribution of Xenopus laevis laevis in southern Africa had the highest probabilities associated with the mediterranean area of the Cape region. From the habitat projection on southern South America, we predict high habitat suitability for this species in the mediterranean region of Chile. Nonetheless, the coastal desert of northern Chile, the Atlantic coasts of Argentina (32◦ to 54◦ S), Uruguay, southern Brazil, the north-central part of Argentina (22◦ to 35◦ S) and the central-southern region of Bolivia, are potentially suitable as well. At a local scale, we confirm that lentic aquatic environments, with slow drainage and murky waters, highly connected, human-disturbed, and part of an irrigation system of small streams and canals, account for the highest probabilities of successful establishment of X. laevis within the area of invasion. Based on our habitat suitability models, we expect the African clawed frog to invade farther north and farther south in Chile.We warn that the pet trade and subsequent release of African clawed frog to the wild pose a serious invasion risk to other countries of the southern cone of South America.en_US
Publisherdc.publisherTaylor & Francisen_US
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.uri*
Keywordsdc.subjectinvasion risken_US
Títulodc.titleInvasive African clawed frog Xenopus laevis in southern South America: key factors and predictionsen_US
Document typedc.typeArtículo de revistaen_US

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