GAP Analysis Predicted Distribution Map

Black Rat (Rattus rattus)

Species Code: RARA

Click to enlarge Range map

= 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

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

The Black Rat is primarily associated with human habitation, mostly around wharves in coastal cities and along bays and coast where there is a zone of beach grass and tidal debris. It doesn't compete well with the Norwegian Rat.

Range is limited to the coast and Columbia River on the west side and the Wenatchee area on the east. Core zones were all of the lowest elevation. Good habitat is developed area in all zones where it is known to occur. On the west side, low elevation rivers, estuaries, and beaches are good.

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