• Factors Influencing the Selection of Resting Sites by Cattle on Shortgrass Steppe

      Senft, R. L.; Rittenhouse, L. R.; Woodmansee, R. G. (Society for Range Management, 1985-07-01)
      Spatial patterns of cattle resting behavior were investigated on shortgrass steppe. Resting was divided into daytime and nighttime categories. Sites selected for daytime resting during June through August were low-lying areas, fencelines, and stock-water area. Daytime resting during September through May occurred on south-facing slopes and lowland areas. Degree of use of warm slopes varied from month to month, peaking in midwinter. A significant portion of daytime resting occurred near water (23%) and fencelines (27%) at all times of the year. Resting at night during October through May occurred on south-facing slopes, low-lying areas, sites with sandy soils, and sites with high buffalo grass (Buchloe dactyloides) cover. During June through September, cattle preferred sites on east-facing slopes and on lowlands. Cattle rested near fencelines less at night than during the day. Patterns of and factors correlated to resting were different from those associated with grazing activity. Resting behavior was correlated with topographic variables, whereas previous work has shown grazing to be correlated with vegetation variables.
    • Forage Use by Cattle and Sheep Grazing Separately and Together on Summer Range in Southwestern Utah

      Ruyle, G. B.; Bowns, J. E. (Society for Range Management, 1985-07-01)
      Grazing trials were conducted on high elevation summer range in southwestern Utah, with cattle and sheep stocked separately and together in .4-ha paddocks. Vegetation measurements were taken before and after grazing treatments to quantify vegetation utilization as measured by several sampling techniques. Sheep removed less grass and more forbs and shrubs than cattle. Cattle showed a strong reluctance to browse mountain snowberry (Symphoricarpos oreophilus Gray) even when herbaceous forage was greatly reduced. In the common use grazing treatments, all 3 forage categories were well utilized. Cattle and sheep grazing together used more forage, especially mountain snowberry, than calculated from single use averages.