Relatively few North American anurans overwinter in water and information is sparse on their movement from overwintering habitat to breeding sites. Oregon spotted frogs (Rana pretiosa) breed explosively in early spring and often overwinter submerged at sites that are distanced...
Habitat, late summer, Klickitat County, Washington More pictures of this frog's natural habitat in Washington and Oregon can be seen on the Northwest page. Short Video An Oregon Spotted frog sitting in a canal in southern Washington in late August. Description Size Adults are 1 3/4 - 4 inc...
The Columbia spotted frog (Rana luteiventris) is one of several amphibians in the Western United States experiencing population declines. The breeding, postbreeding, and overwintering habitat and ecology of this species were investigated in 10 study sites in northeastern Oregon from 1997 through 2004...
The Oregon spotted frog (Rana pretiosa) is a threatened species occurring in floodplains, ponds, and wetlands in the Pacific Northwest with a core range in Oregon, USA. All life stages of R. pretiosa are reliant on aquatic habitats, and inundation patterns across the phenological timeline can ...
Oregon Spotted Frog (Rana Pretiosa) Migration from an Aquatic Overwintering Site: Timing, Duration, and Potential Environmental CuesINTRODUCTIONAmphibians that breed explosively in early spring must leave their winter habitat to...doi:10.1637/0003-0031-184.1.87Bowerman, Jay...
Rana pretiosa (Oregon spotted frog). Aggregation and habitat useNo abstract available.C.J. RomboughC.A. Pearl
The stakeholders in the collaborative process have identified the need to; a) establish a baseline conditions for the Oregon spotted frog (Rana pretiosa) in the Baker River Watershed and; b) assess the effects of continuedproject operations on Oregon spotted frogs and their habitat. This study ...
Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for the Oregon Spotted FrogRachel Jacobson
Endangered and Threatened Wildlife and Plants; Threatened Status and Designation of Critical Habitat for Oregon Spotted Frog (Rana pretiosa)Michael Bean