First Advisor

Richard B. Forbes

Date of Publication

8-5-1974

Document Type

Thesis

Degree Name

Master of Arts (M.A.) in Biology

Department

Biology

Language

English

Subjects

Chipmunks

DOI

10.15760/etd.2262

Physical Description

1 online resource (56 p.)

Abstract

Cluster analysis of a large body of data on 180 Oregon specimens of Eutamias minimus and E. amoenus suggest that overall length of skull, basal length of skull and length of palate are taxonomically critical. If their sum is less than 71.3 millimeters the animal is E. minimus. If the sum is greater than 72.7 millimeters the animal is E. amoenus. If the sum is between 71.3 and72.7 millimeters, other factors must be considered before the animal can be identified. Of the 180 specimens, there were 60 E. minimus, 114 E. amoenus, 2 hybrids, 2 unidentifiable and 2 mismatched skulls and skins.

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Persistent Identifier

http://archives.pdx.edu/ds/psu/15286

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