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Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/6143
Title: Spatiotemporal activity patterns of Merriam kangaroo rats (Dipodomys merriami)
Authors: Behrends, Philip R.
Advisor: Daly, Martin
Department: Psychology
Keywords: Psychology;Psychology
Publication Date: Apr-1984
Abstract: <p>Using radiotelemetry, the spatiotemporal surface activity patterns of the Merriam kangaroo rat (pipodomys merriami) were studied in relation to several physiological and ecological factors. It was found that males were more active than females during the breeding season but not otherwise. Females' surface activity varied in relation to reproductive condition with estrous females most active, pregnant and lactating females intermediate, and anestrous females least active. D. merriami home range sizes were sexually monomorphic in all seasons and ranged in size from 0.03 to 1.16 ha. The majority of activity, however, was restricted to an area of about 0.03 ha. Animals exhibited substantial range overlap with females overlapping males more than other females. No difference was apparent for males. Ranges remained relatively stable in location with only a few animals making substantial shifts. Day burrows, of which animals used several, were regularly distributed so that nearest-neighbors tended to be at maximal distances. As with spatial overlap, females' nearest-neighbors tended to be males.</p> <p>These findings contribute to the natural history of D. merriami and to the study of small mammal social systems. These findings also suggest that this species may have a more complex social structure than heretofore thought.</p>
URI: http://hdl.handle.net/11375/6143
Identifier: opendissertations/1474
2219
1269183
Appears in Collections:Open Access Dissertations and Theses

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