Rangeland Ecology & Management
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Displaying 101 - 150 of 196 results
- Library Collection RecordThis research investigated the potential for using cattle grazing pressure (AU Mg-1 ha-1) and stocking rate (Animal Unit Days ha-1) for predicting basal scarring and browsing of lodgepole pine (Pinus…Publication Date 1998-07-01
- silvopastoral systems
- British Columbia
- Pinus contorta
- seedlings
- stocking rate
- grazing intensity
- browsing damage
- cattle
- trampling
- Library Collection RecordRotation grazing strategies have been proposed to increase stocking capacity, improve animal gains, and improve forage production and range condition. We compared continuous or season-long, 4-pasture…Publication Date 1997-11-01
- optimization
- ground cover
- producer prices
- beef
- liveweight gain
- continuous grazing
- root systems
- rain
- stocking rate
- forbs
- rotational grazing
- steers
- Wyoming
- grazing intensity
- biomass
- plant litter
- botanical composition
- grasses
- Library Collection RecordFor many grassland songbird species, pastures represent some of the best available breeding habitat in the Upper Midwest. Increasing interest in intensive rotational grazing (IRG) among midwestern…Publication Date 1996-07-01
- pheasants
- birds' nests
- Wisconsin
- wild birds
- stocking rate
- rotational grazing
- grazing intensity
- cattle
- Library Collection RecordIn a recent JRM article, Singer et al. (1994) report results of a willow (Salix spp.) study on the northern (ungulate winter) range of Yellowstone National Park (YNP) and immediate vicinity. The…Publication Date 1995-09-01
- stress response
- Yellowstone National Park
- national parks
- Salix
- browse plants
- winter
- tannins
- Wyoming
- grazing intensity
- Cervus elaphus canadensis
- grazing
- Library Collection RecordChanges in the vegetation and soil surface were assessed along a grazing intensity gradient on rangelands of the Punta Ninfas area in southern Argentina. Thirty-two transects were sampled in areas…Publication Date 1995-11-01
- woody weeds
- indicator species
- soil types
- steppes
- grazing intensity
- shrubs
- sheep
- overgrazing
- biomass
- Argentina
- botanical composition
- rangelands
- canopy
- grasses
- forage
- Library Collection RecordEmergence and survival of seedlings of lotus or narrowleaf trefoil (Lotus tenuis Waldst.) were monitored in 4 grazed pastures dominated by tall fescue (Festuca arundinacea Schreb.) for 2 successive…Publication Date 1996-11-01
- Lotus glaber
- Festuca arundinacea
- sown grasslands
- seedling emergence
- mortality
- air temperature
- rain
- cattle manure
- grazing intensity
- Argentina
- Library Collection RecordA 5 year study was conducted during 1988-1992 to quantify the effects of grazing date and frequency on total organic reserves of prairie sandreed [Calamovilfa longifolia (Hook.) Scribn.] and sand…Publication Date 1996-03-01
- etiolation
- grazing date
- organic matter
- Calamovilfa longifolia
- Andropogon hallii
- frequency
- rain
- stocking rate
- Nebraska
- rotational grazing
- grazing intensity
- grazing
- Library Collection RecordThe germinable seed bank in a grassland affects the succession of degraded range and the recolonization of disturbed sites, and must be understood to predict potential responses to management. The…Publication Date 1995-09-01
- soil surface
- seed banks
- Festuca campestris
- Alberta
- stocking rate
- grazing intensity
- seed germination
- prairies
- seasonal variation
- botanical composition
- grazing
- prairie soils
- Library Collection RecordGrazing can have a profound impact on soil water through its influence on infiltration via treading and on evapotranspiration through defoliation. Hydrologic changes in rangelands are most often…Publication Date 1995-11-01
- groundwater recharge
- grazing time
- soil depth
- evapotranspiration
- controlled grazing
- Alberta
- slope
- soil water content
- grazing intensity
- cattle
- grazing
- Library Collection RecordThe objective of this 2 year study was to identify the optimal height to graze Old World bluestem pasture in the Southern Great Plains under continuous stocking during the growing season. We…Publication Date 1996-11-01
- performance
- evaporation
- leaves
- roots
- stems
- liveweight gain
- continuous grazing
- ambient temperature
- Bothriochloa ischaemum
- rain
- steers
- crude protein
- grazing intensity
- Texas
- biomass
- forage
- plant height
- Library Collection RecordWe evaluated the impact of packstock grazing on a dry, upper timberline meadow. Horses were picketed on 15 m ropes for different durations, months, and frequencies over 3 summers. Before horse…Publication Date 1996-11-01
- stand density
- environmental impact
- wilderness
- meadows
- ground cover
- highlands
- horses
- grazing experiments
- natural grasslands
- grazing intensity
- plant communities
- Montana
- Library Collection RecordThis paper sets out that the dynamics of the Sahelian rangeland vegetation can be interpreted as a cusp catastrophe and that this interpretation offers a promising basis for the description and…Publication Date 1996-11-01
- Sahel
- ecological balance
- annuals
- semiarid grasslands
- mathematical models
- perennials
- rain
- grazing intensity
- plant communities
- rangelands
- forage
- Library Collection RecordSoil organic C, total N, extractable P, and salinity were evaluated after 12-16 years of protection from grazing in 2 native grassland sites which differed in frequency of soil waterlogging in the…Publication Date 1996-03-01
- flood meadows
- submergence
- inorganic phosphorus
- soil organic matter
- electrical conductivity
- site factors
- ratios
- grasslands
- soil salinity
- soil fertility
- forbs
- grazing intensity
- plant communities
- soil chemistry
- Argentina
- botanical composition
- grasses
- Library Collection RecordThe purpose of this research was to estimate the impacts of increased federal grazing fees on current holders of grazing permits on the Gila National Forest (GNF) in western New Mexico. A multi-…Publication Date 1997-01-01
- farm income
- fees
- grazing tenancy
- farm size
- economic impact
- ranching
- cost-benefit analysis
- linear models
- grazing intensity
- range management
- New Mexico
- beef cattle
- Library Collection RecordTwo 2-year trials were conducted to evaluate and compare frontal, continuous, and 2-paddock rotation grazing systems on 'Plains' Old World bluestem (Bothriochloa ischaemum (L.) Keng.).…Publication Date 1994-05-01
- grassland improvement
- controlled grazing
- liveweight gain
- Bothriochloa ischaemum
- stocking rate
- rotational grazing
- Oklahoma
- grazing intensity
- cattle
- seasonal variation
- Library Collection RecordMulti-variable analysis of grazing research has seen little conceptual development and even less application. To advance research on the multiple relationships of livestock grazing, computer-based…Publication Date 1994-03-01
- dynamic programming
- simulation models
- stocking rate
- growth
- grazing intensity
- grazing
- forage
- Library Collection RecordLocoweed poisoning generally occurs in early spring when other forage is dormant or in short supply and locoweed is the main green plant available to grazing livestock. The objective of this study…Publication Date 1994-07-01
- Oxytropis sericea
- stocking rate
- spring
- grazing intensity
- phenology
- New Mexico
- beef cattle
- forage
- maturity stage
- Library Collection RecordGrazing system and stocking rate effects on forage standing crop of tallgrass prairies in north-central Oklahoma were evaluated from 1989 to 1993. Twelve experimental units, consisting of pastures…Publication Date 1995-01-01
- air temperature
- rain
- stocking rate
- rotational grazing
- Oklahoma
- grazing intensity
- prairies
- biomass
- grasses
- forage
- Library Collection RecordTwo grazing trials were conducted in separate years on a 5.86 ha winter wheat (Triticum aestivum var. Chisholm) pasture divided into 10 experimental paddocks. Paddocks were differentially grazed with…Publication Date 1995-05-01
- winter wheat
- in vitro
- liveweight gain
- Oklahoma
- steers
- digestibility
- grazing intensity
- biomass
- grazing
- beef cattle
- feed intake
- Library Collection RecordA 2 year study in south central North Dakota determined the responses of (1) litter and root decomposition and nitrogen (N) release, and (2) soil N mineralization to grazing intensity. The treatments…Publication Date 1994-11-01
- nitrogen retention
- degradation
- rangeland soils
- biogeochemical cycles
- grazing experiments
- grazing intensity
- plant litter
- rangelands
- grasses
- North Dakota
- Library Collection RecordAn observed increase in winterfat (Ceratoides lanata (Pursh) J.T. Howell) on ungrazed rangeland suggests that this shrub may potentially be an important forage resource in the Northern Mixed Prairie…Publication Date 1995-05-01
- Saskatchewan
- rain
- Krascheninnikovia lanata
- growth
- grazing intensity
- biomass
- defoliation
- Library Collection RecordThis study was conducted for 2 consecutive growing seasons in a temperate region of Pakistan to determine a residual phytomass level necessary to adequately protect the soil against accelerated…Publication Date 1995-05-01
- sediments
- watershed management
- water erosion
- Pakistan
- rill erosion
- Pinus wallichiana
- Universal Soil Loss Equation
- rainfall simulators
- biomass production
- grazing intensity
- biomass
- canopy
- soil water
- Library Collection RecordEstimates of forage production for long-term ungrazed, lightly, moderately, and heavily grazed treatments (0, 20, 40, 60% removal of annual forage production) established in 1939 in shortgrass steppe…Publication Date 1994-03-01
- fluctuations
- steppes
- regression analysis
- rain
- biomass production
- grazing intensity
- semiarid zones
- botanical composition
- Colorado
- forage
- Library Collection RecordAn investigation was conducted to characterize the intensity and frequency of tiller defoliation in 'Plains' Old World bluestem (Bothriochloa ischaemum (L.) Keng) under frontal, continuous…Publication Date 1994-05-01
- frequency
- tussock grasslands
- Bothriochloa ischaemum
- stocking rate
- tillers
- grazing intensity
- browsing damage
- cattle
- defoliation
- grazing
- Library Collection RecordThis study was initiated to determine the effects of defoliation frequency (based on amount of growth present), intensity, and length of grazing season on quantity and quality of big bluestem (…Publication Date 1992-11-01
- carbohydrates
- persistence
- Missouri
- protein content
- cutting frequency
- Andropogon gerardii
- crude protein
- grazing intensity
- in vitro digestibility
- defoliation
- quality
- grazing
- simulation
- forage
- Library Collection RecordObservations suggest spring grazing of riparian areas is a good management strategy because of a reduced tendency for cattle to concentrate along streams during that season. In this study, June…Publication Date 1993-11-01
- riparian grasslands
- Idaho
- grazing intensity
- grazing
- beef cattle
- Library Collection RecordCattle grazing has been suggested as a principal cause for poor oak recruitment in California's hardwood rangelands. This study evaluated the effects of stock density and season of grazing on…Publication Date 1992-09-01
- crop damage
- recruitment
- Quercus douglasii
- seedlings
- stocking rate
- winter
- spring
- summer
- grazing intensity
- browsing damage
- California
- woodlands
- cattle
- range management
- seasonal variation
- grazing
- Library Collection RecordResearch was conducted at the Sonora Research Station during a 4-year period (1984 to 1988) to measure differences in herbaceous vegetation response between two 7-pasture 1-herd grazing systems.…Publication Date 1993-03-01
- ewes
- dry matter accumulation
- grazing trials
- ecological succession
- stocking rate
- pastures
- heifers
- growth rate
- grazing intensity
- Texas
- botanical composition
- grazing
- forage
- Library Collection RecordStocking rates and grazing strategies may alter botanical composition of rangeland vegetation by altering frequency and intensity of defoliation of individual plant species. We used long-interval…Publication Date 1993-03-01
- mixed pastures
- grazing trials
- stocking rate
- rotational grazing
- steers
- Pascopyrum smithii
- Bouteloua gracilis
- tillers
- grazing intensity
- botanical composition
- defoliation
- grazing
- forage
- Library Collection RecordCharacterization of standing herbaceous biomass on rangeland is complicated by both temporal and spatial variability that results from patchiness in vegetation. These patches often cause nonuniform…Publication Date 1992-05-01
- mixed pastures
- frequency distribution
- Buchloe dactyloides
- mathematical models
- spatial variation
- prediction
- temporal variation
- Bouteloua gracilis
- grazing intensity
- cattle
- biomass
- grazing
- plant height
- Library Collection RecordCattle at a light stocking rate of 0.17 to 0.18 AUM/ha over a 35-day grazing season in summer preferred to graze on lowland range sites, while elk in winter preferred upland range sites. We changed…Publication Date 1991-05-01
- animal competition
- sloping land
- foraging
- highlands
- lowlands
- habitats
- site factors
- soil types
- stocking rate
- pastures
- winter
- Wyoming
- grazing intensity
- Cervus elaphus canadensis
- grazing behavior
- cattle
- Library Collection RecordFour potential cattle grazing systems on summer range in the Sierra Nevada are compared in terms of deer harvest, number of hunters attracted, and the net economic value of hunting. Research on deer…Publication Date 1991-07-01
- net economic benefit
- national forests
- carrying capacity
- population density
- economic analysis
- hunting
- multiple land use
- pastures
- rotational grazing
- grazing intensity
- Odocoileus hemionus
- California
- cattle
- range management
- rangelands
- Library Collection RecordChanges in total biomass and botanical composition in a native pasture of the Flooding Pampa in the Salado River Basin (Province of Buenos Aires), under 3 grazing systems: spring-summer rest (…Publication Date 1991-09-01
- Paspalum dilatatum
- Sporobolus indicus
- bothriochloa laguroides
- seasonal grazing
- Bothriochloa
- floodplains
- continuous grazing
- yields
- rotational grazing
- natural grasslands
- biomass production
- grazing intensity
- seasonal variation
- Argentina
- botanical composition
- grazing
- grasses
- Library Collection RecordEven though the Wilderness Act of 1964 provided for continuation of livestock grazing after wilderness designation, there has been continued debate about the Forest Service's implementation of…Publication Date 1991-09-01
- land policy
- permits
- animal unit month
- coronado national forest
- Tonto National Forest
- USDA
- wilderness
- national forests
- multiple land use
- grazing intensity
- range management
- rangelands
- grazing
- Arizona
- Library Collection RecordGrazing systems and stocking rates are used to influence livestock grazing behavior with the intent of improving livestock and vegetation performance. In 1982, a study was initiated to determine…Publication Date 1991-05-01
- night grazing
- short-duration grazing
- grazing time
- distance travelled
- liveweight gain
- continuous grazing
- grazing trials
- stocking rate
- rotational grazing
- steers
- Wyoming
- grazing intensity
- grazing behavior
- grazing
- beef cattle
- Library Collection RecordThe government must manage public rangeland in the face of alternative multiple use interests, including wildlife and domestic livestock production. The objectives of this study were to estimate a…Publication Date 1991-07-01
- linear programming
- mixed grazing
- production possibilities
- economic benefits
- production possibilities frontier
- marginal rates of substitution
- marginal returns
- animal production
- multiple land use
- cost-benefit analysis
- stocking rate
- Antilocapra americana
- biomass production
- Wyoming
- grazing intensity
- cattle
- range management
- rangelands
- forage
- Library Collection RecordUneven distribution of livestock in large pastures results in some areas receiving more use than the average and some areas receiving little or no use. Six 2-ha experimental pastures on a shallow…Publication Date 1991-09-01
- grazing pressure
- twig diameter
- grazing strategy
- Acacia rigidula
- Acacia berlandieri
- stocking rate
- branches
- diameter
- pastures
- grazing intensity
- goats
- Texas
- canopy
- feeding preferences
- plant height
- Library Collection RecordVegetational response of a nine-paddock, short-duration grazing cell was compared to that of a continuous pasture for a 5-year period in southcentral New Mexico. Differences in vegetational response…Publication Date 1991-07-01
- grazing time
- vegetation cover
- standing crop
- stocking rate
- pastures
- vegetation
- Bouteloua gracilis
- biomass production
- grazing intensity
- cattle
- biomass
- range management
- botanical composition
- grazing
- New Mexico
- Library Collection RecordLittle is known about the chemical composition of throughfall, or the water that falls through, and drips from, the grass canopy of Rough Fescue Grassland during the grazing season. Water-extractable…Publication Date 1992-03-01
- chernozems
- soil organic matter
- monosaccharides
- organic acids and salts
- physicochemical properties
- Festuca campestris
- grasslands
- Alberta
- stocking rate
- chemical composition
- grazing intensity
- soil chemistry
- plant litter
- Library Collection RecordThe Kostiakov equation is of interest in rangeland hydrology because it is a simple 2 parameter equation with values of constants easy to determine from measured infiltration data, and because of its…Publication Date 1991-01-01
- mixed pastures
- hydrologic data
- Festuca
- grazing trials
- equations
- Alberta
- natural grasslands
- grazing intensity
- cattle
- prairies
- grazing
- infiltration
- soil water
- Library Collection RecordWe analyzed the response of the key habitat features and ground-foraging birds to 2 intensities of continuous grazing on sandy loam and clay soils in the Texas Coastal Bend during 1984-1985. Heavy…Publication Date 1990-01-01
- wildlife food plants
- sturnella magna
- birds
- Zenaida macroura
- Colinus virginianus
- population density
- habitats
- clay soils
- sandy loam soils
- grazing intensity
- cattle
- Texas
- grazing
- Library Collection RecordFew studies have dealt with measuring individual plant defoliations in the context of intensive grazing management. In May, July, and August of 1987, grazing trials were conducted to quantify the…Publication Date 1990-09-01
- feeding frequency
- grazing time
- leaf area
- Schizachyrium scoparium
- grazing trials
- Sorghastrum nutans
- Andropogon gerardii
- rotational grazing
- tillers
- grazing intensity
- grazing behavior
- prairies
- grazing
- beef cattle
- forage
- feeding preferences
- Library Collection RecordImpacts of long-term cattle grazing on litter and soil organic matter were assessed in mixed prairie, parkland fescue, and foothills fescue grasslands of Alberta, Canada. Grazing regimes were of…Publication Date 1991-01-01
- soil organic matter
- chernozemic soils
- solonetzic soils
- mixed pastures
- Festuca
- grazing trials
- Alberta
- natural grasslands
- grazing intensity
- cattle
- prairies
- plant litter
- grazing
- Library Collection RecordHeavy communal grazing pressure and rapid phytomass decomposition reduce shrub interspace cover in Somalia from 100% at the end of the growing season to 5% at the end of the dormant season. Intense…Publication Date 1990-11-01
- communal feeding
- interrill erosion
- hydrology
- watershed management
- ground cover
- watersheds
- Somalia
- sandy soils
- clay soils
- pastures
- grazing intensity
- shrubs
- plant litter
- rangelands
- livestock
- grazing
- infiltration
- Library Collection RecordThe key to managing Arizona chaparral depends on creating and maintaining brush-free or savanna-like habitats. Brush control using fire, chemicals, and mechanical methods has been tested previously;…Publication Date 1991-03-01
- chaparral
- chaparral soils
- Quercus turbinella
- manual weed control
- soil density
- biological control
- controlled grazing
- brush control
- soil fertility
- stocking rate
- vegetation
- regrowth
- grazing intensity
- goats
- range management
- browsing
- grazing
- Arizona
- Library Collection RecordA key to management of short duration grazing systems is maintaining proper rest periods for individual pastures, but information on the necessary length of rest periods for tallgrass prairie is…Publication Date 1991-03-01
- grazing time
- controlled grazing
- ecological succession
- stocking rate
- rotational grazing
- Oklahoma
- natural grasslands
- grazing intensity
- plant communities
- cattle
- prairies
- botanical composition
- grazing
- Library Collection RecordBasin big sagebrush (Artemisia tridentata Nutt ssp tridentata Beetle) often invades rangelands seeded to introduced grass species. Livestock grazing may enhance the invasion but the effects of…Publication Date 1990-03-01
- short-duration grazing
- size
- Agropyron desertorum
- population dynamics
- mortality
- pastures
- grazing intensity
- Artemisia tridentata
- plant density
- Utah
- grazing
- Library Collection RecordSimulated 8-pasture short duration grazing systems were studied in 1985-86 to determine the effect of grazing schedule and stocking rate on defoliation patterns of individual grass tillers of big…Publication Date 1990-03-01
- Schizachyrium scoparium
- controlled grazing
- stocking rate
- Andropogon gerardii
- rotational grazing
- Oklahoma
- tillers
- grazing intensity
- cattle
- defoliation
- grazing
- plant height
- Library Collection RecordLiveweight (LW) changes and behavior of growing rams were measured in 1981, 1982, 1985, and 1986 at the Timahdit Experiment Station in the Middle Atlas, Morocco, at stocking rates of 2.78, 4.17, and…Publication Date 1990-09-01
- rams
- Morocco
- selling prices
- production costs
- decision making
- stocking rate
- grazing intensity
- diets
- grazing behavior
- in vitro digestibility
- range management
- forage
- dry matter
- feed intake
- Library Collection RecordCombined grazing by black-tailed prairie dogs (Cynomys ludovicianus) and bison (Bison) produces and maintains a series of changes in the vegetation of prairie dog colonies. However, because their…Publication Date 1991-03-01
- grazing time
- Cynomys ludovicianus
- mixed pastures
- bison
- controlled grazing
- South Dakota
- vegetation
- grazing intensity
- nitrogen content
- prairies
- biomass
- range management
- botanical composition
- grazing