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GAP Analysis Predicted Distribution Map

Western Harvest Mouse (Reithrodontomys megalotis)

Species Code: REME

Breeding Range Map The green area shows the predicted habitats for breeding only. © NatureMapping Program + enlarge map Predicted breeding range = Core Habitat = Marginal Habitat   photo by US Forest Service Fact Sheet: Basic | Advanced 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.   Observations | Historic GAP points

Habitat

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
Design by Tim Knight; Photo: