GAP Analysis Predicted Distribution Map

Red-legged Frog   Rana aurora

Species code: RAAU

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Metadata (Data about data or how the map was made)

= Core Habitat
= Marginal Habitat

Predicted Distribution
Amphibians do not migrate as some birds and mammals, so the colored areas depict the predicted range for the Red-legged Frog year-round. The habitats were identified using 1991 satellite imagery, other datasets and experts throughout the state, as part of the Washington Gap Analysis Project.

Distribution and Habitat Requirements
habitat 524 picture Outside the breeding season, the Red-legged frog spends a lot of time away from water and is frequently found along streams adjacent to woodlands (Leonard et al., 1993). This species is a pond breeder and needs quiet waters and aquatic vegetation for egg attachment. This frog breeds in floodplain pools in the open areas of riparian hardwood forests. If residual downed logs from a former conifer stand of trees and wetlands are present, it is possible that it may also inhabit stands of alder trees.

All the ecoregions west of the Cascades with marginal extensions into the East Central Cascades and Southeast Cascades were selected. West of the Cascades crest, all zones up to and including the Western Hemlock zone were core. The Interior Douglas-fir, Grand Fir and Interior Western Hemlock zones were marginal.

Lakes, rivers and riparian areas were good habitats. All open- and closed-canopy hardwood, hardwood/conifer, and conifer forests and all low-density developed residential areas including parks, golf courses, and wooded forests surrounded by development were considered suitable if adequate microhabitats were present.

Other maps & Information:
  • NatureMapping observations throughout the year
  • Links to pictures and other information about this species

Translated from the Washington Gap Analysis Amphibians and Reptiles Volume by Karen Dvornich

Webpage designed by Dave Lester.