Ecological notes on Manitoba Napaeozapus insignis

Journal Article · Mon Jan 01 04:00:00 EST 1973 · Can. Field Natur., v. 87, no. 1, pp. 15-19

OSTI ID:4339404

Iverson, S L; Turner, B N

As part of a systematic sampling of small mammals within the control area of Whiteshell Nuclear Research Establishment of Atomic Energy of Canada Limited, twenty-six woodland jumping mice (Napaeozapus insignis frutectanus) were captured (1967--71) in a deciduous forest bordering the Winnipeg River and its tributary creeks. Only two specimens of this mammal have been previously reported from Manitoba, and both were from a coniferous forest. The specimens were captured where the dominant vegetation included hazelnut (Corylus cornuta), trembling aspen (Populus tremuloides), ash (Fraxinus nigra and F. pennsylvanica), oak (Quercus macrocarpa) and strawberry (Fragaria virginiana). All were captured on or near slopes and within 100 m of permanent flowing water. Males apparently emerge from hibernation in late May and are in reproductive condition, whereas females do not emerge until early June. There was no evidence of more than one litter per year, and young did not reproduce in their year of birth. Adults stored fat in August or early September. The species has a restricted distribution in this area, and apparently occurs in isolated groups. (auth)

• Research Organization: Atomic Energy of Canada Ltd., Pinawa, Manitoba
• NSA Number: NSA-29-026861
• OSTI ID: 4339404
• Journal Information: Can. Field Natur., v. 87, no. 1, pp. 15-19, Journal Name: Can. Field Natur., v. 87, no. 1, pp. 15-19; ISSN CAFNA
• Country of Publication: Canada
• Language: English

Related Subjects

*CANADA-- ECOLOGY
*MICE-- DISTRIBUTION
ENVIRONMENT
FORESTS
MAMMALS
N44500* --Environmental & Earth Sciences--Site Surveys
PLANTS
REPRODUCTION
SAMPLING
WR-1 REACTOR