Vol. 12 (1988)
Grand Teton Np Report

Field Metabolic Rates and Cohort Analysis in Microtine Rodents

Norman C. Negus
University of Utah
Patricia J. Berger
University of Utah
Aelita J. Pinter
University of New Orleans

Published 1988-01-01

Abstract

The 1988 field season turned out to be a most unusual year. Extreme drought conditions prevailed for the entire growing season following an early melt-off. This provided an unprecedented opportunity to analyze cohort responses to an extreme environmental fluctuation in Microtus montanus. The basic objectives of this study are to analyze cohort responses to environmental fluctuations and to compare the energetic expenditures in two species of microtine rodents, Microtus montanus and Microtus logicaudus.