The chytrid fungus Batrachochytrium dendrobatidis is non‐randomly distributed across amphibian breeding habitats

@article{Kriger2007TheCF,
  title={The chytrid fungus Batrachochytrium dendrobatidis is non‐randomly distributed across amphibian breeding habitats},
  author={Kerry Matthew Kriger and Jean-Marc Hero},
  journal={Diversity and Distributions},
  year={2007},
  volume={13}
}
  • K. Kriger, J. Hero
  • Published 1 November 2007
  • Environmental Science
  • Diversity and Distributions
The chytrid fungus Batrachochytrium dendrobatidis has been implicated as the causative agent of mass mortalities, population declines, and the extinctions of stream‐breeding amphibian species worldwide. While the factors that limit the distribution and abundance of B. dendrobatidis across large geographical regions are fairly well understood, little is known about the distribution of the fungus within localized areas such as individual catchments. The accurate identification of amphibian… 

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References

SHOWING 1-10 OF 68 REFERENCES

Transmission of Batrachochytrium dendrobatidis within and between amphibian life stages.

TLDR
Experimental evidence is presented that R. muscosa tadpoles can be infected by fungal zoospores and that they can transmit infection to each other and to postmetamorphic animals.

Historical Evidence of Widespread Chytrid Infection in North American Amphibian Populations

TLDR
To investigate the global distribution, historical occurrence, and infectiousness of this pathogen, postmetamorphic and adult amphibians collected between 1895 and 2001 from 25 countries were examined for the presence of chytrid fungi in the epidermis.

Ecology of Chytridiomycosis in Rainforest Stream Frog Assemblages of Tropical Queensland

TLDR
The data indicate that at the landscape level, environmental conditions have strong effects on host-pathogen dynamics and interact with species-specific behavior or immune function and may be important underlying determinants of chytridiomycosis epizootics and emergence.

Emerging infectious disease as a proximate cause of amphibian mass mortality.

TLDR
It is indicated that chytridiomycosis causes high mortality in post-metamorphic R. muscosa population declines, and that the disease threatens this species with extirpation at numerous sites in California's Sierra Nevada.

Inconclusiveness of Chytridiomycosis as the Agent in Widespread Frog Declines

TLDR
The case has not yet been made conclusively that the chytrid fungus Batrachochytrium dendrobatidis is the primary agent responsible for widespread declines in amphibian populations, particularly rainforest frog populations in Australia and Central America, but it remains unclear whether the pathogen is novel where declines have occurred.

Physiology of Batrachochytrium dendrobatidis, a chytrid pathogen of amphibians.

TLDR
The zoospore activity, physiology and protease production of B. dendrobatidis is investigated to help understand the epidemiology of this pathogen, which is implicated in severe population declines on several continents.

Survival of Batrachochytrium dendrobatidis in Water: Quarantine and Disease Control Implications

TLDR
It is shown that B. dendrobatidis will survive in tap water and in deionized water for 3 and 4 weeks, respectively, and the knowledge that water can remain infective for up to 7 weeks is important for the formulation of disease control and quarantine strategies for the management of water that has been in contact with amphibians.

Evidence for disease-related amphibian decline in Colorado

Effect of season and temperature on mortality in amphibians due to chytridiomycosis.

TLDR
Chytridiomycosis is a major cause of mortality in free-living and captive amphibians in Australia and mortality rate increases at lower temperatures.
...