La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Low humidity is a failed treatment option for chytridiomycosis in the critically endangered southern corroboree frog (2015)
Auteurs :	Laura A. Brannelly, Auteur ; Lee Berger, Auteur ; Gerry Marrantelli, Auteur ; Lee F. Skerratt, Auteur
Type de document :	Article
Dans :	Wildlife Research (42(1) 2015)
Article en page(s) :	44-49
Langues:	Anglais
Résumé :	Context. One of the major drivers of the current worldwide amphibian decline and extinction crisis is the spread of the amphibian chytrid fungus, Batrachochytrium dendrobatidis (Bd). Captive assurance colonies may be the only lifeline for some species. Current antifungal chemotherapies can be effective for clearing infection but may have detrimental side effects. The only non-chemotherapeutic treatment that has been clinically tested is heat, which is impractical for cold-adapted species. The fungus does not survive desiccation, and therefore a plausible alternative non-chemotherapeutic treatment would be a low-humidity regimen. Aims. We tested the efficacy of a low-humidity treatment regimen for treating Bd-infected animals of the critically endangered species Pseudophryne corroboree. This species has high tolerance of dry environments, and is thus an ideal candidate for this treatment trial. Methods. Forty frogs were exposed to 1 x 10(6) zoospores. At three weeks after exposure access to water was reduced to once daily for 10 days for

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