Advisor

Richard B. Forbes

Date of Award

8-8-1977

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Biology

Department

Biology

Physical Description

1 online resource, digitized manuscript.

Subjects

Squirrels -- Oregon -- Portland

DOI

10.15760/etd.2539

Abstract

Populations of diurnal tree squirrels in the Portland area were located by mail surveys, personal interviews, and field inspections. Pine squirrels were found to reside in thickly wooded residential areas with dense understories and running water nearby. Western gray squirrels occupied habitats in relatively quiet residential neighborhoods, in areas well supplied with mast crops. Western fox squirrels were found to coexist with gray squirrels in their preferred habitat, and also to thrive in park settings with few mast trees and high activity and noise levels. In areas occupied by both fox and gray squirrels, dominant-subordinate relationships were noted. Each species tolerated the others.

Persistent Identifier

http://archives.pdx.edu/ds/psu/16114

Included in

Biology Commons

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