Date of Award:

5-1-1984

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Biology

Department name when degree awarded

Biology Ecology

Committee Chair(s)

James A. Gessaman

Committee

James A. Gessaman

Committee

J. MacMahon

Committee

J. Malechek

Abstract

The northern pocket gopher, Thomomys talpoides, is probably not able to maintain nitrogen (N) balance in winter in northern Utah if it eats only belowground plant material typical of that found in the caches it makes. Gophers burrowing 10 h/day would meet about 81% of their daily N requirement on such a diet, which has a true N digestibility of 49.0%, and a biological value of 90.6%. However, gophers could easily meet N requirements in winter by consuming material only slightly higher in N than cached material. High-N material (both plant and animal matter) is probably available to most gophers, making it unlikely that these animals are protein limited.

Share

COinS