| widespread occurrence of the chytrid fungus batrachochytrium dendrobatidis on oregon spotted frogs (rana pretiosa). | the pathogen batrachochytrium dendrobatidis (bd) has been associated with amphibian declines in multiple continents, including western north america. we investigated bd prevalence in oregon spotted frog (rana pretiosa), a species that has declined across its range in the pacific northwest. polymerase chain reaction analysis of skin swabs indicated that bd was prevalent within populations (420 of 617 juvenile and adults) and widespread among populations (36 of 36 sites) where we sampled r. pretio ... | 2009 | 19526269 |