Date of Award

1972

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Biology

Department

Biology

Physical Description

1 online resource (13 leaves, maps, 28 cm.)

Subjects

Pikas

DOI

10.15760/etd.1117

Abstract

Pikas from four colonies in the Cascade Mountains of Oregon were examined. Two colonies were chosen from within the geographical distribution of two nominal subspecies. A discriminate analysis of morphological measurements taken from the specimens showed that each colony could be distinguished from each other. Each colony studied showed more intra-colony similarity than inter-colony similarity regardless of distance separating the colonies or subspecies designations. The results indicate that the validity of subspecies designations for this species can be questioned.

Description

Portland State University. Dept. of Biology.

Persistent Identifier

http://archives.pdx.edu/ds/psu/9837

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