• Deer and Elk Use on Foothill Rangelands in Northeastern Oregon

      Miller, R. F.; Krueger, W. C.; Vavra, M. (Society for Range Management, 1981-05-01)
      Forested foothills of the Wallowa Mountains in northeastern Oregon provide spring and early summer range for deer and elk. Deer and elk use varied both between plant communities and seasonally within plant communities. Plant species composition of big game diets also varied with season. Bunchgrass and logged communities collectively occupying 57% of the land area studied, provided 90% of the big game diet during spring and early summer. Grasses made up 52% of the diet, forbs 38%, and browse 10%. Timothy and western goatsbeard were the two most important species consumed by big game. Pellet groups did not reliably estimate the value of various communities to deer and elk for forage use.
    • Effects of Range Improvement on Roosevelt Elk Winter Nutrition

      Mereszczak, I. M.; Krueger, W. C.; Vavra, M. (Society for Range Management, 1981-05-01)
      Three pasture types dominate the Beneke Creek Wildlife Management Area on this Roosevelt elk winter range in northwestern Oregon. In winter, elk showed a strong preference for perennial ryegrass pastures that were hayed the previous summer and fall fertilized over bentgrass pastures also hayed and fertilized or unmanaged bentgrass pastures. These perennial ryegrass pastures provided forage that met minimal requirements for digestible protein and digestible energy all winter while both bentgrass pasture types were deficient in these nutrients through winter. Improvement of bentgrass pastures by conversion to ryegrass should result in higher rates of elk reproduction and better survival of offspring.