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Winter Weight Dynamics in Microtus Pennsylvanicus
A population of meadow voles (Microtus pennsylvanicus) 75 mi northeast of Winnipeg, Manitoba, Canada was live-trapped biweekly for two winters. From August to February of each year the meanExpand
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The Characterization of Vole Population Dynamics
The population cycles of meadow voles (Microtus pennsylvanicus) were studied in southeastern Manitoba, Canada, from 1968 to 1978 on a 32-ha old field and in surrounding boreal forest. Vole densityExpand
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THE ANNUAL CYCLE OF AGGRESSION IN MALE MICROTUS PENNSYLVANICUS, AND ITS RELATION TO POPULATION PARAMETERS'
Intraspecific aggression of male Microtus pennsylvanicus drummondii was ob- served in 320 10-minute paired encounters in a neutral arena, during 17 months. Voles were drawn from a populationExpand
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Breeding by Peromyscus in seasonal environments
Reproductive characteristics of Peromyscus maniculatus in Manitoba and Peromyscus leucopus in Ontario were compared in order to determine the extent to which breeding compensates for relatively shortExpand
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Ecology of red-backed voles (Clethrionomys gapperi) in a gradient of gamma radiation
Demographie d'une population de C. Gapperi entre 1967 et 1982 dans le voisinage du Centre de Recherche nucleaire de Whiteshell (Canada, Manitoba)
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Small-Mammal Distributions Across the Prairie-Forest Transition of Minnesota and North Dakota
Thirteen taxa of small mammals were collected in the continuous forest, aspen groves, riparian woodland and prairie areas of the prairie-forest transition. Mammals captured were placed in threeExpand
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Effects of castration on open-field behaviour and aggression in male meadow voles (Microtus pennsylvanicus)
A series of three experiments tested the hypothesis that castration would result in altered open-field behaviour and aggression in male meadow voles. The open-field behaviour of laboratory-rearedExpand
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Winter coexistence of voles in spruce forest: relevance of seasonal changes in aggression
Beginning in November 1973, numerous meadow voles (Microtus pennsylvanicus) moved onto a spruce forest grid occupied by red-backed voles (Clethrionomys gapperi). A resident meadow vole populationExpand
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Postnatal Growth and Development of Captive Franklin's Ground Squirrels (Spermophilus franklinii)
Growth and development of Franklin's ground squirrels (Spermophilus franklinii) were determined from 87 young raised by wild-caught females in the laboratory. Developmental stages appeared in theExpand
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UNDER-SNOW SHELTER FOR SMALL MAMMAL TRAPPING
The inexpensive, easily constructed shelter described allowed routine livetrapping of Microtus pennsylvanicus to continue successfully when temperatures fell as low as -35 C. It also provided sum-Expand
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