Your search for Vegetation Type "Grazed Forest" resulted in 10 match(es).

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Title: Effects of cattle grazing upon chemical constituents within important forages for elk: Journal: Northwest Science; Authors: W. J. Dragt, and K. M. Havstad; Date: 1987; Summary: The effect of summer cattle grazing on the winter forage quality of bluebunch wheatgrass, Idaho fescue and rough fescue for elk within the Elkhorn Mountains of Montana was investigated. Forage quality was determined by comparing utilization and chemical constituents in relation to eight grass phenological stages (vegetative, boot, emerging seed heads, anthesis mature flowers, seed shatter, mature foliage, and fall regrowth). Cattle were grazed in a conservatively stocked three pasture deferred-rotation system. Utilization was measured bi-weekly from June-October of one year. After winter ...; Agrovoc Control Words: Grasses, Rangelands, Wildlife; View more details about this article

Title: Recent environmental changes inferred from the sediments of small lakes in Yellowstone's northern range: Journal: Journal of Paleolimnology; Authors: D. R. Engstrom, C. Whitlock, S. C. Fritz, and H. E. Wright; Date: 1991; Summary: The landscape history of the last 150 years was reconstructed by the examination of the sedimentary record of eight small lakes in the northern range of Yellowstone National Park. The purpose was to determine if changes could be attributed to grazing and other activities of elk, bison, and other large ungulates. Sediment core samples were taken from the deepest part of each lake. Samples were examined for pollen content, diatoms, lead-210 dating and geochemistry. ...; Agrovoc Control Words: Limnology, Rangelands, Wildlife; View more details about this article

Title: Runoff from simulated rainfall in 2 montane riparian communities: Journal: Journal of Range Management; Authors: G. W. Frasier, M. J. Trlica, W. C. Leininger, R. A. Pearce, and A. Fernald; Date: 1998; Summary: The effect of vegetation height on surface run-off was measured in June and July over two years along Sheep Creek on the Roosevelt National Forest in Colorado. Two sites (a sedge dominated northern exposure and a grass dominated southern exposure) received three clipping treatments (heavy clipping-removal of all biomass, clipping to 10 cm and no clipping). Rainfall simulation consisted of a dry run with 60 mm/hr followed by a wet run with 60 mm/hr. Plant and soil cover, species composition, stem density and surface roughness were measured after clipping but before rain simulation. Vegetation w ...; Agrovoc Control Words: Riparian zones, Rangelands, Grazing Land; View more details about this article

Title: Cattle grazing a riparian mountain meadow: Effects of low and moderate stocking density on nutrition, behavior, diet selection, and plant growth response: Journal: Journal of Animal Science; Authors: S. A. Huber, M. B. Judkins, L. J. Krysl, T. J. Svejcar, B. W. Hess, and D. W. Holcombe; Date: 1995; Summary: Steers were used to evaluate the effects of stocking density on grazing behavior, dietary selection, forage intake, digesta kinetics, and growth rates of Carex nebraskensis and Juncus balticus in a riparian pasture on upper Big Grizzly Creek in Plumas County, California. Prior to the study, the site was grazed for 2 weeks (June-August) as one pasture of a three-pasture rotational grazing system. Three experimental pastures were created with one of 3 treatments: no grazing (control), grazed to leave 1,500 kg forage/ha (low) and grazed to leave 1,000 kg forage/ha (moderate). Grazing by 12 rumin ...; Agrovoc Control Words: Riparian zones, Grazing, Stocking density; View more details about this article

Title: Dietary niche relationships among cervids relative to winter snowpack in northwestern Montana: Journal: Canadian Journal of Zoology; Authors: K. J. Jenkins, and R. G. Wright; Date: 1987; Summary: Winter diets of elk, white-tailed deer and moose in Glacier National Park (48â°47â€™ N, 114â° 16â€™ W) were measured to determine the effect of snow depth on dietary overlap and nutritional quality. Fecal samples from each species were collected in February for two years. Over the same time, samples of consumed forage species were collected to determine nutrient content. Each winterâ€™s severity was rated. ...; Agrovoc Control Words: Ungulates, Foraging, Dietary overlap; View more details about this article

Title: Resource partitioning and competition among cervids in the northern Rocky Mountains: Journal: Journal of Applied Ecology; Authors: K. J. Jenkins, and R. G. Wright; Date: 1988; Summary: Resource partitioning patterns for elk, moose and white-tailed deer in Glacier National Park, Montana, were documented during a mild and a harsh winter. Also, the effects of winter on interspecific competition and its role on niche relationships were investigated. Spatial distribution and habitat selection were observed from January to May for two years. Vegetation characteristics were collected in the summers previous to each winter. Snow depths to quantify severity of winter and fecal samples to determine forage preferences were collected. ...; Agrovoc Control Words: Ungulates, Rangelands, Competition; View more details about this article

Title: Effect of domestic cattle on the condition of female white-tailed deer in southern pine-bluestem forests, USA: Journal: Acta Theriologica; Authors: J. A. Jenks, and D. M. Leslie, Jr; Date: 2003; Summary: Effects of cattle stocking rates (heavy, moderate to light, and no grazing) on condition of white-tailed deer were measured by comparing physical condition of deer in Oklahoma and Arkansas. Female deer from each treatment area were harvested and necropsied in February and August of each year. ...; Agrovoc Control Words: Grazing systems, Rangelands, Ungulates; View more details about this article

Title: Competition in sympatric white-tail deer and cattle populations in southern pine forests of Oklahoma and Arkansas, USA: Journal: Acta Theriologica; Authors: J. A. Jenks, D. M. Leslie, Jr, R. L. Lochmiller, M. A. Melchiors, and F. T. McCollum, III; Date: 1996; Summary: For two years competitive interactions between cattle and white-tailed deer were studied to compare dietary characteristics in Oklahoma and Arkansas. Three grazing treatments (heavy, moderate to light, no grazing) were applied. Fecal samples were collected in October, February, May, and August. Dietary composition of plant material within feces was categorized by vegetation type. A dietary quality index was determined from nitrogen levels in fecal samples. ...; Agrovoc Control Words: Stocking rate, Ungulates, Competition; View more details about this article

Title: Managing fish and livestock on Idaho rangelands: Journal: Rangelands; Authors: W. S. Platts; Date: 1986; Summary: This paper is a synopsis of professional resource knowledge looking at Idaho's rangeland livestock-fishery resources from their historic development to the future, and discusses the importance of managing rangelands to produce the optimum mix of forage and fisheries resources. ...; Agrovoc Control Words: Riparian zones, Grazing, Inland Fisheries; View more details about this article

Title: Effects of clipping and sheep grazing on dyers woad: Journal: Journal of Range Management; Authors: N. E. West, and K. O. Farah; Date: 1989; Summary: This two year study in the Wellsville Mountains, Box Elder County, Utah compared the effects of mechanical clipping and grazing by sheep on dyers woad (Isatis tinctoria) characteristics. Grazing intensity varied from light (less than 40% grazed) to moderate (60% clipped) and severe (90% clipped). Plants were subject of varying clipping frequencies (1, 2, 3, and four times) from April to May. Vegetation measurements were taken before and after grazing and clipping treatments. ...; Agrovoc Control Words: Weeds, Rangelands, Grazing; View more details about this article

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