Ecology: Global warming and amphibian losses

@article{Alford2007EcologyGW,
  title={Ecology: Global warming and amphibian losses},
  author={Ross A. Alford and Kay S. Bradfield and Stephen John Richards},
  journal={Nature},
  year={2007},
  volume={447},
  pages={E3-E4}
}
Arising from: J. A. Pounds et al. 439, 161–167 (2006)10.1038/nature04246; Pounds et al. replyIs global warming contributing to amphibian declines and extinctions by promoting outbreaks of the chytrid fungus Batrachochytrium dendrobatidis? Analysing patterns from the American tropics, Pounds et al. envisage a process in which a single warm year triggers die-offs in a particular area (for instance, 1987 in the case of Monteverde, Costa Rica). However, we show here that populations of two frog… 

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References

SHOWING 1-10 OF 13 REFERENCES
Climate change and outbreaks of amphibian chytridiomycosis in a montane area of Central Spain; is there a link?
TLDR
This analysis uses long-term observations on amphibian population dynamics in the Peñalara Natural Park, Spain, to investigate the link between climate change and chytridiomycosis and shows that rising temperature is linked to the occurrence of chyTrid-related disease, consistent with theChytrid-thermal-optimum hypothesis.
Widespread amphibian extinctions from epidemic disease driven by global warming
TLDR
It is shown that a recent mass extinction associated with pathogen outbreaks is tied to global warming, and it is proposed that temperatures at many highland localities are shifting towards the growth optimum of Batrachochytrium, thus encouraging outbreaks.
Linking global warming to amphibian declines through its effects on female body condition and survivorship
TLDR
Climate warming can act on wild temperate zone amphibians by deleteriously affecting their physiology, during and after hibernation, causing increased female mortality rates and decreased fecundity in survivors.
Complex causes of amphibian population declines
TLDR
Climate-induced reductions in water depth at oviposition sites have caused high mortality of embryos by increasing their exposure to UV-B radiation and, consequently, their vulnerability to infection, indicating the role of large-scale climatic patterns involving the tropical Pacific.
Emerging infectious disease and the loss of biodiversity in a Neotropical amphibian community.
  • K. Lips, Forrest Brem, J. P. Collins
  • Environmental Science, Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 2006
TLDR
An outbreak of chytridiomycosis in Panama is described and it is argued that this infectious disease has played an important role in amphibian population declines and the high virulence and large number of potential hosts of this emerging infectious disease threaten global amphibian diversity.
Epidemic Disease and the Catastrophic Decline of Australian Rain Forest Frogs
In the montane rain forests of eastern Australia at least 14 species of endemic, stream-dwelling frogs have disappeared or declined sharply (by more than 90%) during the past 15 years. We review
Lack of Evidence for Epidemic Disease as an Agent in the Catastrophic Decline of Australian Rain Forest Frogs
Recent concern about declining amphibian populations has stimulated an extensive effort to quantify the population status of amphibians throughout the world, and to elucidate the causal factors
Structure and dynamics of a rainforest frog (Litoria genimaculata) population in northern Queensland
TLDR
The data suggest that Litoria genimaculata uses Birthday Creek largely or exclusively as a reproductive habitat, and the extent to which this species uses habitats away from stream environments remains to be determined.
FUNGAL PATHOGEN CAUSES COMPETITIVE AND DEVELOPMENTAL STRESS IN LARVAL AMPHIBIAN COMMUNITIES
TLDR
The results suggest that chytridiomycosis may impact Bufo and Hyla directly by reducing life-history performance and increasing developmental instability, and indirectly by inducing interspecific competitive effects in mixed-species environments.
Responding to Amphibian Loss
In their Policy Forum "Confronting amphibian declines and extinctions" (7 July, p. 48), J. R. Mendelson III and colleagues offer a strategy for "stopping" the widespread losses of frogs, toads, and
...
1
2
...