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Endemic Infection of the Amphibian Chytrid Fungus in a Frog Community Post-Decline

Show simple item record Retallick, Richard W. McCallum, Hamish Speare, Rick 2016-05-09T18:00:12Z 2016-05-09T18:00:12Z 2004-10-05
dc.identifier.citation Retallick, R. W., McCallum, H., & Speare, R. (2004). Endemic Infection of the Amphibian Chytrid Fungus in a Frog Community Post-Decline. PLoS Biology PLoS Biol, 2(11). es_CR
dc.description.abstract The chytrid fungus Batrachochytrium dendrobatidis has been implicated in the decline and extinction of numerous frog species worldwide. In Queensland, Australia, it has been proposed as the cause of the decline or apparent extinction of at least 14 high-elevation rainforest frog species. One of these, Taudactylus eungellensis, disappeared from rainforest streams in Eungella National Park in 1985–1986, but a few remnant populations were subsequently discovered. Here, we report the analysis of B. dendrobatidis infections in toe tips of T. eungellensis and sympatric species collected in a mark-recapture study between 1994 and 1998. This longitudinal study of the fungus in individually marked frogs sheds new light on the effect of this threatening infectious process in field, as distinct from laboratory, conditions. We found a seasonal peak of infection in the cooler months, with no evidence of interannual variation. The overall prevalence of infection was 18% in T. eungellensis and 28% in Litoria wilcoxii/jungguy, a sympatric frog that appeared not to decline in 1985–1986. No infection was found in any of the other sympatric species. Most importantly, we found no consistent evidence of lower survival in T. eungellensis that were infected at the time of first capture, compared with uninfected individuals. These results refute the hypothesis that remnant populations of T. eungellensis recovered after a B. dendrobatidis epidemic because the pathogen had disappeared. They show that populations of T. eungellensis now persist with stable, endemic infections of B. dendrobatidis. es_CR
dc.language.iso en_US es_CR
dc.publisher Public Library of Science es_CR
dc.subject Batrachochytrium dendrobatidis es_CR
dc.subject endemic infections es_CR
dc.subject Amphibian Chytrid Fungus es_CR
dc.subject frog communities es_CR
dc.subject infecciones endémicas es_CR
dc.subject Anfibio hongo quítrido es_CR
dc.subject comunidades de ranas es_CR
dc.subject frogs es_CR
dc.subject ranas es_CR
dc.title Endemic Infection of the Amphibian Chytrid Fungus in a Frog Community Post-Decline es_CR
dc.type Article es_CR

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