Active-Season Dynamics of a Population of Zapus hudsonius in Michigan

Publisher Website
Google Scholar
Abstract
Active-season dynamics of a population of Z. hudsonius in Michigan were studied by livetrapping at weekly intervals. Population parameters were estimated using the mark-ecapture model of Jolly (1965) and Seber (1965). Reproductive activity was greatest in early and mid-June and late July-early Aug. Survival rate estimates were lower during May and June than during subsequent months. Individual growth rates were positive during the majority of the summer but became extremely high in Sept. and Oct., just prior to hibernation. Previous categorizations of Zapus as K-strategists may not be appropriate.