GAP Analysis Predicted Distribution Map

Western Harvest Mouse (Reithrodontomys megalotis)

Species Code: REME

Legend: = Core Habitat = Marginal Habitat Breeding Range Map The green area shows the predicted habitats for breeding only. The habitats were identified using 1991 satellite imagery, other datasets and experts throughout the state, as part of the Washington Gap Analysis Project. Click to enlarge distribution map Map with historical museum records Other maps & Information: NatureMapping observations throughout the year Tracks NatureMapping silhouette Grade K-6: Fact Sheet Grade 7-12: Fact Sheet (Fact sheets and silhouettes available to purchase

The Western Harvest Mouse prefers dense vegetation (grass, weeds),usually near water. Typical habitats are marshes, meadows, ditch banks, boundaries of irrigated fields, brushy borders of streams and lakes, shrubby borders of wheat fields, fence rows, and roadside weeds. In the hotter, drier parts of eastern Washington, they seem limited to the margins of major water courses. Soil type is not a factor.

All steppe zones were core when they occurred in the Columbia Basin. For all but the Central Arid Steppe, agriculture, water/wetlands, and non-forested, except sparse vegetation, were good habitat. In the Central Arid Steppe, irrigated agriculture and water/wetlands were good.

Translated from the Washington Gap Analysis Mammal Volume by Dave Lester
Webpage designed by Dave Lester