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  • Predatory Behavior of Pine Martens
    Although the composition of diets of pine marten (Martes americana) is well studied (see Zielinski et al., 1983) direct observations of marten predatory behavior are rare. During a 15-month investigation of marten ecology at Sagehen Creek, California (Spencer et al., 1983; Zielinski et al., 1983), we sometimes observed marten in acts of predation. Observations involved five marked marten and one ...
  • Marten Habitat Preferences in the Northern Sierra Nevada
    Escalating harvest of remnant old-growth forests in the Pacific Northwest has precipitated concern for marten (Martes amaericana) as an old-growth dependent species (Meslow et al. 1981). Although recent studies have increased our understanding of marten habitat requirements (Koehler adn Hornocker 1977, Soutiere 1979, Steventon and Major 1982), little in-depth research has been done in the Pacific states. Also, the influences ...
  • Relationship Between Food Habits & Activity Patterns of Pine Martens
    Pine martens (Martes americana) consume a variety of food types annually but seasonal foraging is restricted to a subset of available prey. Winter foods include chickarees (Tamiasciurus douglasii), voles (Microtus spp.), snowshoe hares (Lepus americanus), and flying squirrels (Glaucomys sabrinus), whereas ground-dwelling sciurids (Spermophilus spp. and Eu- tamias spp.) comprise the bulk of the diet during the remainder of the ...
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