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Semelhante a A brief introduction to Batrachochytrium salamandrivorans (Bsal) and the threat to southeastern taxa
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A brief introduction to Batrachochytrium salamandrivorans (Bsal) and the threat to southeastern taxa
- 1. First Southern Appalachians Batrachochytrium salamandrivorans (Bsal) mee6ng
- 3. History • First discovered in The Netherlands (2013) • Reduced infected popula6ons to less than 4%
- 4. Effects on salamanders • Mul6focal superficial erosions and deep ulcera6ons all over the body • Death generally occurs in under 2 weeks aNer a short episode of anorexia, apathy, and ataxia
- 8. Threat to southern Appalachian species • Martel et al. (2014) tested 35 species across all amphibian orders
- 9. Threat to southern Appalachian species • Threat-‐ moderate • Temp of most habitat is outside of ideal growth range • 1 of 3 Hynobs contracted Bsal • Habitat of S. keyserlingii-‐ terrestrial but breed in permanent pools
- 10. Sirenidae • Threat -‐ moderate • Only species tested does contract Bsal, but is tolerant
- 11. Ambystoma6ds • Threat-‐ low • 2 species tested-‐ both tolerant • Larvae suscep6bility untested
- 12. Salamandrids • Threat-‐ extremely high • Nearly all species died from infec6on • Large popula6ons and wide spread-‐ can serve as a reservoir • Both terrestrial and aqua6c forms give this species the ability to rapidly spread Bsal
- 13. Waterdogs and amphiumas • ???
- 14. Dusky and climbing salamanders • Threat-‐ High • Bsal was lethal in Hydromantes, which is very similar ecologically to Aneides • Desmogs are endemic widely spread and ecologically diverse
- 15. Woodland Plethodon6ds • Threat-‐ moderate due simply to the number of species • Plethodon glu:nosus was immune
- 16. Splerpines • Threat-‐ low to moderate • Gyrinophilus was immune • Again, very diverse
- 17. Conclusions • Bsal has the poten6al to decimate southern Appalachian salamander diversity and density • The biggest threats appear to be to red spo[ed newts, green salamanders, and the dusky salamanders • We need a lot more data and conserva6on strategy