Chytrid hits frogs harder in pristine environments

The devastation caused by Chytridiomycosis in amphibian species is well known, but recently a link was found between the strength of the disease and pristine environments. From Mongabay.com:

Examining tropical frog populations in Costa Rica, Australia, and Brazil's Atlantic Forest, the researchers found "that paradoxically, habitat loss is negatively associated with occurrence, prevalence, and infection intensity of [chytridiomycosis] in amphibian populations in the tropics." The finding goes against research of other animal diseases, which usually find that risk of disease increases in disturbed habitats. In this case the researchers suspect that either the lethal disease depends on the ecosystem having an undisturbed microclimate, or that a decline in amphibian diversity and abundance—due to habitat loss—slows the spread of the disease. The finding also explains why the presence of chytridiomycosis is often seen in higher altitudes where forest is less disturbed.

For the full article, click here. To see the study published in PNAS, click here.