Austral Amphibians: Gondwanan relicts in peril

Jean-Marc Hero, J. Dale Roberts, Conrad J. Hoskin, Katrin Lowe, Edward Narayan, Phillip J. Bishop

Research output: Book chapter/Published conference paperChapter (peer-reviewed)

Abstract

Over 30% of Australasian amphibians are currently threatened with extinction. While habitat loss, introduced species and disease have been identified as major threats, the impacts of climate change are understudied. Threatened frogs fall into distinct biogeographical and ecological groupings that can be linked to specific threats (e.g. mountain top endemics and climate change; stream-dwelling wet forest frogs and disease; and small island endemics and feral pests). The impacts of climate changes over millions of years has isolated specific species into climatic refugia (resulting in restricted geographic ranges), which combined with the ecological traits of these species (e.g. small clutchsize) dramatically increases extinction risk. Australasian frogs demonstrates intrinsic links between biogeographic history, species ecology and conservation status. The solutions to most threats are clear at a broad level, stop land clearing, reduce CO2 emissions and control feral animals; however, declines linked to the disease chytridiomycosis are not easily resolved. Chytridiomycosis is not a universal threat and understanding the causes of variation in impact is critically important. While the threats of land clearing, disease, and introduced species are regional and/or species specific, the impacts of climate change must be examined carefully as all species are likely to affected. Here we cover these issues for Australasian frogs, presenting regional examples that highlight threats and avenues for future research and management.
Original languageEnglish
Title of host publicationAustral Ark
Subtitle of host publicationThe state of wildlife in Australia and New Zealand
EditorsAdam Stow, Norman Maclean, Gregory I. Holwell
Place of PublicationCambridge
PublisherCambridge University Press
Chapter21
Pages440-466
Number of pages27
Edition1st
ISBN (Electronic)9781316190852
ISBN (Print)9781107033542
Publication statusPublished - 2015

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  • Cite this

    Hero, J-M., Roberts, J. D., Hoskin, C. J., Lowe, K., Narayan, E., & Bishop, P. J. (2015). Austral Amphibians: Gondwanan relicts in peril. In A. Stow, N. Maclean, & G. I. Holwell (Eds.), Austral Ark: The state of wildlife in Australia and New Zealand (1st ed., pp. 440-466). Cambridge University Press.