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- W2566147168 abstract "Eighteen pine marten (Martes americana) stomachs and 29 intestinal tracts, collected between October 1983 and March 1984 from northern Colorado, were examined for food items. Voles ( Microtus spp.) occurred most frequently, followed by shrews ( Sorex spp.), insects, and vegetative matter. The pine marten (Martes americana) inhabits mature stands of coniferous forests of North America (Lensink et al. 1955, Marshall 1951). Although the pine marten is an important furbearer in many states, few studies have specifically examined winter food habits (Hargis and McCullough 1984, Zielinski et al. 1983, Lensink et al. 1955, Cowan and Mackay 1950). Winter is a critical period when many food items are unavailable and prey populations reach yearly lows. Lensink et al. (1955) reported that changes in the abundance or availability of food may be reflected in movements, productivity, and choice of habitat. The objectives of this study were to identify winter foods and their frequencies in the diet with respect to availability. Study Area and Methods The study area is in the Roosevelt National Forest 29 km west of Rustic, Larimer County, Colorado. Elevation ranged from 3168 to 3780 m. The trap sites were dominated by Engelmann spruce (Picea engelmannii) and subalpine fir (Abies lasiocarpa). The main understory vegetation consisted of vaccinium (Vaccinium spp.). The study was conducted from October 1983 to March 1984. The winter was severe with greater snowfall and colder temperatures than average. Thirty-two martens were collected using conibear and leghold traps. Food samples were taken from both the stomach and intestine. Samples were analyzed using the procedure described by Johnson and Hanson (1977). Reference collections were used to identify diagnostic bones, teeth, hair, or feathers. Hair impressions were used when no other fragments were identifiable (Moore et al. 1974). Prey items were identified to genus whenever possible. Percent occurrence (number of occurrences of a prey item/ total number of stomachs or intestines X 100) was determined for each prey item." @default.
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- W2566147168 date "1986-01-01" @default.
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- W2566147168 title "Winter food habits of the pine marten in Colorado" @default.
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