Rangeland Ecology & Management
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Displaying 101 - 150 of 392 results
- Library Collection RecordGrazing strategies should be designed to maintain vigorous populations of plant species critical for livestock production, wildlife habitat, and/or ecosystem functions. Treatments consisting of 5- to…Publication Date 1999-09-01
- early summer
- timing
- Schizachyrium scoparium
- Calamovilfa longifolia
- Andropogon hallii
- sandy soils
- mortality
- stocking rate
- selective grazing
- Nebraska
- rotational grazing
- summer
- tillers
- grazing intensity
- cattle
- botanical composition
- defoliation
- Library Collection RecordThe recent expansion of juniper into sagebrush steppe communities throughout the semiarid Intermountain West is most frequently attributed to the reduced role of fire, introduction and overstocking…Publication Date 1999-11-01
- dendrochronology
- growth rings
- artemisia arbuscula
- Festuca idahoensis
- Pinus ponderosa
- fire ecology
- Juniperus occidentalis
- rain
- stocking rate
- Oregon
- grazing intensity
- semiarid zones
- grasses
- Library Collection RecordGrazing behavior of livestock may be altered when grass swards are lodged by trampling or wind and rain. We used a balanced change-over design to investigate the effects of lodging on the ingestive…Publication Date 1999-09-01
- lodging
- Festuca arundinacea
- biting rates
- animal preferences
- feeding behavior
- selective grazing
- beef cows
- tillers
- grazing intensity
- plant density
- biomass
- dry matter
- plant height
- Library Collection RecordThe objective of this study was to determine if leaf area index (LAI) or visual obstruction (VO) could be used in an efficient double-sampling format for estimating total above-ground standing crop…Publication Date 1999-09-01
- equipment
- stand density
- measurements
- range condition
- leaf area index
- stocking rate
- Nebraska
- grazing intensity
- biomass
- rangelands
- Library Collection RecordConcern over the humane treatment and diminishing numbers of feral horses (Equus caballus) led to their protection under the Wild Free-Roaming Horse and Burro Act of 1971. The potential for rapid…Publication Date 1999-03-01
- opportunity costs
- feral herds
- wildlife
- horses
- linear models
- stocking rate
- sward destruction
- species differences
- forbs
- steers
- Wyoming
- grazing intensity
- shrubs
- range management
- grasses
- Library Collection RecordThis study was prompted by concerns that expansion of elk (Cervus canadensus) ranges upward into subalpine grasslands might be damaging green fescue (Festuca viridula Vasey) meadows in Mount Rainier…Publication Date 1999-03-01
- Festuca viridula
- lupinus latifolius
- Festuca
- Lupinus
- Washington
- mountain grasslands
- grazing intensity
- Cervus elaphus canadensis
- biomass
- canopy
- Library Collection RecordPocket gophers are important disturbance agents in rangelands, yet little is known about how plant responses to gopher disturbances vary with grazing and topography. We measured the spatial…Publication Date 1999-11-01
- Opuntia polyacantha
- Thomomys talpoides
- ground cover
- species diversity
- rain
- pastures
- grazing intensity
- botanical composition
- Library Collection RecordBig sagebrush (Artemisia tridentata Nutt.) declined from ungulate browsing during the first half of the twentieth century on the Northern Yellowstone Winter Range. It was our objective to compare…Publication Date 1999-07-01
- Wyoming
- grazing intensity
- slopes
- Artemisia tridentata
- plant communities
- Odocoileus hemionus
- browsing damage
- shrubs
- Cervus elaphus canadensis
- canopy
- forage
- Library Collection RecordIn the semi-arid Northern Great Plains, seeded cool-season grasses are primarily recommended for spring and fall grazing because their nutritive quality is perceived as too low to support acceptable…Publication Date 1999-05-01
- native grasslands
- physical activity
- Bromus inermis
- sown grasslands
- Agropyron desertorum
- liveweight gain
- duration
- stocking rate
- steers
- Pascopyrum smithii
- grazing intensity
- rangelands
- grazing
- North Dakota
- Library Collection RecordBecause of its high palatability and sustained levels of forage quality, antelope bitterbrush (Purshia tridentata Pursh DC) is one of the most desired shrubs on western U.S. rangelands. Bitterbrush…Publication Date 1999-03-01
- Purshia tridentata
- fire ecology
- mortality
- rain
- pastures
- selective grazing
- grazing intensity
- in vitro digestibility
- range management
- phenology
- seasonal variation
- botanical composition
- grazing
- grasses
- beef cattle
- plant height
- maturity stage
- Library Collection RecordEastern gamagrass (Tripsacum dactyloides (L.) L.) is a perennial warm-season bunchgrass that starts growth earlier in the spring than most other warm-season grasses. This suggests that combining…Publication Date 1999-11-01
- Tripsacum dactyloides
- Tripsacum
- protein content
- liveweight gain
- Bothriochloa ischaemum
- rain
- stocking rate
- Oklahoma
- grazing intensity
- in vitro digestibility
- biomass
- botanical composition
- nutritive value
- grazing
- beef cattle
- plant height
- maturity stage
- Library Collection RecordPrior simulation analysis of cattle fever tick population dynamics has indicated that fixed rotation, short duration grazing (SDG) systems could mediate the spread of ticks among pastures if rest…Publication Date 1998-09-01
- life cycle
- simulation models
- Boophilus
- tick infestations
- mortality
- duration
- stocking rate
- rotational grazing
- grazing intensity
- range management
- seasonal variation
- beef cattle
- Library Collection RecordGrazing cattle on forest plantations in the interior of British Columbia (B.C.) is a common practice, but its impact on soil compaction is not well documented. This study evaluated the effects of…Publication Date 1999-11-01
- resistance to penetration
- British Columbia
- sown grasslands
- Pinus contorta
- forest plantations
- grazing intensity
- grazing
- infiltration
- soil compaction
- bulk density
- beef cattle
- Library Collection RecordA 10-year riparian grazing study was conducted on a cold, mountain meadow riparian system in central Idaho in response to cattle grazing-salmonid fisheries conflicts. Six pastures were established…Publication Date 1999-05-01
- seral stages
- stream erosion
- Salix
- streams
- riparian buffers
- Idaho
- forbs
- grazing intensity
- shrubs
- cattle
- plant litter
- botanical composition
- canopy
- grasses
- Library Collection RecordRunoff and sediment yield were evaluated on a sandplain dominated by woody perennial shrubs in north-western NSW, Australia. The site was bladeploughed; and some plots were grazed by sheep and cattle…Publication Date 1997-03-01
- blade plowing
- New South Wales
- crusts
- hydrology
- semiarid grasslands
- soil erosion
- runoff
- grazing intensity
- shrubs
- sediment yield
- range management
- Library Collection RecordAn analytical method for classifying ecological types was developed and tested for mountain meadows in central Nevada. Six ecological types were identified by plot sampling of vegetation and soil-…Publication Date 1997-05-01
- meadows
- indicator species
- land forms
- soil degradation
- soil temperature
- ecotones
- slope
- grazing intensity
- biomass
- botanical composition
- rangelands
- canopy
- soil compaction
- soil texture
- altitude
- Library Collection RecordA grazing study was initiated in the foothills of southwestern Alberta on the rough fescue grasslands (Festuca campestris (Rydb.) in 1949 comparing various grazing intensities. In 1992, soil samples…Publication Date 1998-01-01
- soil aggregates
- color
- A horizons
- grassland condition
- soil density
- organic matter
- soil temperature
- Festuca campestris
- Alberta
- phosphorus
- pH
- grazing intensity
- cattle
- nitrogen content
- prairie soils
- soil water
- Library Collection RecordExpert judgment, standardized in a meaningful format, can be used to identify research/survey needs and to characterize areas of (dis)agreement in species responses, associated traits, and factors…Publication Date 1998-05-01
- experts
- probability analysis
- plants
- prescribed burning
- grazing intensity
- Texas
- range management
- Library Collection RecordWe documented vegetation dynamics (April 1986-July 1989) as part of a larger study to understand botanical composition and nutritional components of cattle and deer diets under 2 grazing systems (…Publication Date 1997-11-01
- continuous grazing
- rain
- Odocoileus virginianus
- stocking rate
- forbs
- rotational grazing
- grazing intensity
- cattle
- Texas
- biomass
- seasonal variation
- botanical composition
- grasses
- feeding preferences
- Library Collection RecordWe tested the hypothesis that nutrient content of bluebunch wheatgrass (Agropyron spicatum [Pursh] Scribn. &Smith) either cattle grazed in the spring, rested from cattle grazing for a full year,…Publication Date 1997-09-01
- Pseudoroegneria spicata
- nutrient content
- range condition
- Cervus elaphus
- winter
- rotational grazing
- grazing intensity
- seasonal variation
- Montana
- Library Collection RecordShortgrass rangeland, dominated by blue grama (Bouteloua gracilis [H.B.K.] Lag. ex Steud), was grazed at 3 intensities, equivalent to mean stocking rates of 16.7, 23.0, and 36.5 heifer-days ha-1,…Publication Date 1998-07-01
- long term experiments
- ground cover
- liveweight gain
- stocking rate
- heifers
- sustainability
- grazing intensity
- biomass
- plant litter
- botanical composition
- Colorado
- Library Collection RecordIndicators of nutrient intake were compared for beef steers grazing tallgrass prairie managed with continuous grazing or 8-paddock short-duration grazing. Two replicates of each grazing system were…Publication Date 1998-01-01
- duodenum
- flow
- feeding level
- dietary protein
- organic matter
- continuous grazing
- range condition
- feces composition
- stocking rate
- rotational grazing
- Oklahoma
- steers
- digestibility
- digesta
- grazing intensity
- nitrogen content
- prairies
- forage
- feed intake
- Library Collection RecordA study on Conservation Reserve Program (CRP) land was established in southeastern Nebraska to determine the effect of dormant-season management on subsequent-year growth rates and yields of…Publication Date 1998-07-01
- mowing
- harvest date
- developmental stages
- grassland improvement
- Schizachyrium scoparium
- stocking rate
- Nebraska
- Panicum virgatum
- prescribed burning
- Andropogon gerardii
- tillering
- grazing intensity
- plant height
- Library Collection RecordIn this study the impact of a rotation grazing system on the soil and vegetation of a Stipa-Bouteloua-Agropyron community in the mixed prairie ecoregion was compared with the ungrazed treatment in…Publication Date 1997-11-01
- Elymus lanceolatus
- Hesperostipa comata
- Alberta
- rain
- chemical composition
- rotational grazing
- Bouteloua gracilis
- grazing intensity
- soil chemistry
- biomass
- range management
- plant litter
- botanical composition
- Library Collection RecordThe effect of livestock grazing on organic and N in rangeland soils is not well defined. In this study on sandy rangeland in western Oklahoma, we sampled 8 pastures moderately grazed by cattle and 8…Publication Date 1997-09-01
- soil analysis
- carbon
- soil fertility
- nutrient uptake
- forbs
- Oklahoma
- biomass production
- grazing intensity
- plant communities
- nitrogen content
- plant litter
- botanical composition
- rangelands
- grasses
- Library Collection RecordMonitoring shrubland vegetation change is important to rangeland assessment. Methods used to document shrubs vary with the intended use of information and the unit of observation. This study…Publication Date 1998-03-01
- volume
- Krascheninnikovia lanata
- Bouteloua gracilis
- grazing intensity
- plant communities
- plant density
- defoliation
- canopy
- New Mexico
- Library Collection RecordNative warm-season grass mixtures have been established on the Southern Plains under the USDA Conservation Reserve Program. We studied responses to N fertilizer on such pastures in western Oklahoma…Publication Date 1998-07-01
- Bouteloua curtipendula
- grassland improvement
- ground cover
- nitrogen fertilizers
- stocking rate
- Oklahoma
- Bouteloua gracilis
- grazing intensity
- application rates
- biomass
- range management
- botanical composition
- beef cattle
- forage
- Library Collection RecordA biophysical model, GRAZE, is used to simulate beef forage performance for stocker steers pastured on common bermudagrass. Eight alternative stocking rates, ranging from low to high grazing…Publication Date 1997-09-01
- biophysical simulation model
- Arkansas
- uncertainty
- Cynodon dactylon
- risk
- simulation models
- costs and returns
- grassland improvement
- market prices
- production costs
- liveweight gain
- rain
- stocking rate
- steers
- grazing intensity
- forage
- 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 1998-03-01
- clearcutting
- British Columbia
- Pinus contorta
- mortality
- seedlings
- stocking rate
- grazing intensity
- browsing damage
- cattle
- 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 RecordThis 10-year study was designed to evaluate vegetation response to increasing stocking rates under rotational stocking (3 days graze, 51 days rest) and long-term rest. The 4 stocking rate treatments…Publication Date 1997-07-01
- stocking rate
- rotational grazing
- Texas
- range management
- botanical composition
- livestock
- 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 RecordVisitors to the Big Cimarron Watershed in the Uncompahgre National Forest, Colorado, had varying attitudes about cattle grazing. Without cuing, 9% of all visitors listed livestock as a source of…Publication Date 1996-01-01
- public opinion
- visitors
- uncompahgre national forest
- multiple land use
- livestock
- grazing
- Colorado
- 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