Rangeland Ecology & Management
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- Library Collection RecordWinterfat (Eurotia lanata (Pursh) Moq.) diaspores harvested from 1 Canadian and 2 USA sites were imbibed at 0, 5, 10, and 20 degrees C. It was hypothesized that imbibition temperature affects seed…Publication Date 1999-05-01
- cold tolerance
- imbibition
- seed weight
- ambient temperature
- Saskatchewan
- Krascheninnikovia lanata
- Wyoming
- botanical composition
- Colorado
- Library Collection RecordChronic overgrazing in the central Andes alters vegetation and may cause erosion and loss of productivity, but quantitative studies are lacking. We measured the relative influence of environmental…Publication Date 1999-09-01
- transhumance
- socioeconomic
- soil organic matter
- grazing time
- ground cover
- controlled grazing
- species diversity
- range condition
- dry seasons
- wet season
- slope
- aspect
- stocking rate
- mountain grasslands
- precipitation
- sheep
- biomass
- Argentina
- botanical composition
- altitude
- Library Collection RecordPerformance of cow-calf (Bos taurus) and ewe-lamb (Ovisaries) units was compared under multispecies versus single-species grazing and deferred-rotation versus continuous stocking during a 10-year…Publication Date 1999-09-01
- grazing season
- land productivity
- mixed grazing
- seasons
- lambs
- ewes
- performance
- liveweight gain
- calves
- continuous grazing
- stocking rate
- beef cows
- rotational grazing
- Utah
- Library Collection RecordSevere livestock losses caused by tall larkspur (Delphinium spp.) consumption have caused many producers to try various preventative measures, including the use of mineral-salt supplementation. The…Publication Date 1998-09-01
- dose response
- dosage
- training (animals)
- poisoning
- Delphinium barbeyi
- dietary mineral supplements
- barley
- cattle
- Utah
- feed intake
- Library Collection RecordIdaho fescue (Festuca idahoensis Elmer), a palatable native perennial bunchgrass, has persisted on degraded sagebrush-steppe despite invasion by alien plants, excessive livestock grazing, and…Publication Date 1999-03-01
- stress factors
- Bromus
- Festuca idahoensis
- disturbed soils
- competitive ability
- steppes
- rain
- seedlings
- Oregon
- plant communities
- seed germination
- temperature
- biomass
- botanical composition
- altitude
- 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 RecordThis investigation was to determine the carrying capacity of the Southern Plains mixed-grass prairie by measuring vegetation and yearling steer gain responses to 2 replicates of 3 different grazing…Publication Date 1999-11-01
- ground cover
- carrying capacity
- liveweight gain
- rain
- stocking rate
- winter
- Oklahoma
- steers
- summer
- sustainability
- botanical composition
- beef cattle
- Library Collection RecordWoody perennials have invaded semiarid grasslands throughout the Southwestern United States. This invasion was coupled with decreased grass cover and increased runoff and soil erosion. Fire, which…Publication Date 2000-01-01
- weather
- water erosion
- ground cover
- semiarid grasslands
- ecotones
- brush control
- runoff
- prescribed burning
- shrubs
- soil chemistry
- nitrogen content
- losses from soil
- botanical composition
- 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 RecordThe objective of this research was to determine, on a seasonal basis, the relative preferences of cattle for 7 native grasses and d crested wheatgrass (Agropyron desertorum (Fischer ex Link)Schultes…Publication Date 1998-09-01
- vegetative growth
- flowering
- dormancy
- Agropyron desertorum
- fiber content
- selective grazing
- Oregon
- crude protein
- cattle
- plant density
- biomass
- phenology
- plant litter
- botanical composition
- grazing
- feeding preferences
- Library Collection RecordWe evaluated the species composition of soil seed banks from 9 farms (36 pastures total) located in the northeast United States. Our objective was to quantify the soil seed bank composition of…Publication Date 2000-01-01
- Northeastern United States
- Trifolium repens
- seed banks
- Poa pratensis
- cutting
- rotational grazing
- cattle
- seed germination
- biomass
- botanical composition
- Library Collection RecordSquirreltail [Elymus elymoides (Raf.) Swezey] is a native cool-season grass that has been observed to invade rangelands dominated by the weedy annual grasses, cheatgrass (Bromus tectorum L.) and…Publication Date 1998-09-01
- net assimilation rate
- greenhouses
- Taeniatherum caput-medusae
- Elymus elymoides
- colonizing ability
- Pseudoroegneria spicata
- leaf area
- seedling growth
- roots
- ratios
- Agropyron desertorum
- shoots
- seedlings
- Bromus tectorum
- Idaho
- growth rate
- biomass
- Utah
- Colorado
- dry matter
- 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 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 RecordDespite large efforts to generate and extend management innovations for rangeland operators, little is known about the degree to which practices are used. We determined what influenced use of 26…Publication Date 1999-01-01
- socioeconomic status
- innovation adoption
- farm surveys
- farmers' income
- livestock numbers
- public domain
- ranching
- range management
- Utah
- Library Collection RecordChanging social values and advances in ecological knowledge determine native seed policy for revegetating range and forest lands. Natural resource managers are shifting from seeding introduced…Publication Date 1998-11-01
- government agencies
- seed sources
- land policy
- seed collection
- sowing
- mined soils
- wildfire management
- reclamation
- species diversity
- seeds
- range management
- botanical composition
- Nevada
- rangelands
- Library Collection RecordThe effect of the growing season and topographic zone on biomass production, protein content, cell content (CC), lignin, cellulose, hemicellulose, digestibility (DMD), and mineral element…Publication Date 1998-09-01
- cellulose
- cells
- nutrient deficiencies
- Spain
- hemicellulose
- mineral content
- legumes
- semiarid grasslands
- lignin
- protein content
- fiber content
- sodium
- slope
- forbs
- phosphorus
- digestibility
- cattle
- phenology
- seasonal variation
- botanical composition
- nutritive value
- grasses
- Library Collection RecordBoth the Society for Range Management's (1995) Task Group on Unity in Concepts and Terminology (UCT) and the Natural Resources Conservation Service (1997) have recommended use of the ecological…Publication Date 1999-11-01
- land classification
- semi-desert scrub
- landscape ecology
- geographic information systems
- texture
- pinyon-juniper
- semiarid grasslands
- fire ecology
- slope
- range management
- botanical composition
- Utah
- Library Collection RecordEstimates of forage use are often the basis for important management decisions (e.g., determining carrying capacity and setting stocking rates). Using both hypothetical and field data, we examine the…Publication Date 1999-03-01
- sample plot technique
- data analysis
- representative sampling
- estimation
- yields
- plant communities
- Cervus elaphus canadensis
- rangelands
- Utah
- forage
- Library Collection RecordTo define alfalfa crop loss from depredating mule deer, the spotlight count and paired plot techniques were applied in 12 fields located throughout Utah. Protected and grazed plots were used to…Publication Date 1998-01-01
- enumeration
- crop losses
- alfalfa
- Odocoileus hemionus
- Utah
- Library Collection RecordPatterns of bison (Bison bison L.) grazing were examined in a 2-year study on a tallgrass prairie site in Oklahoma subjected to a seasonally and spatially variable burning regime. Mixed groups of…Publication Date 1998-05-01
- area
- bulls
- bison
- gender differences
- selective grazing
- prescribed burning
- Oklahoma
- prairies
- biomass
- seasonal variation
- botanical composition
- Library Collection RecordDiets of bison (Bison bison L.) were examined using microhistological fecal analysis in a 2-yr study on a tallgrass prairie site in northcentral Oklahoma. Graminoids comprised at least 98% of the…Publication Date 1998-07-01
- bison
- Carex
- selective grazing
- forbs
- Oklahoma
- prairies
- seasonal variation
- botanical composition
- grasses
- Library Collection RecordAshe juniper (Junius ashei, Buckholz) is increasing on most sites across the Edwards Plateau of Texas. It is the purpose of this investigation to document the influence of Ashe juniper tree size on…Publication Date 1997-09-01
- browse line
- light penetration
- size
- Juniperus ashei
- understory
- Odocoileus virginianus
- stocking rate
- goats
- Texas
- plant litter
- botanical composition
- canopy
- browsing
- grasses
- 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 RecordMaintaining native plant diversity, detecting exotic species, and monitoring rare species are becoming important objectives in rangeland conservation. Four rangeland vegetation sampling techniques…Publication Date 1998-03-01
- Minnesota
- exotics
- steppes
- species diversity
- range condition
- South Dakota
- sampling
- Wyoming
- prairies
- botanical composition
- rangelands
- grazing
- Colorado
- Library Collection RecordThe effects of fall and spring sheep use on cover components and recovery following a change in seasonality of grazing practices, were studied within long-term grazing treatments of three-tip…Publication Date 1998-05-01
- Artemisia tripartita
- Balsamorhiza
- timing
- ground cover
- controlled grazing
- stocking rate
- Idaho
- semiarid zones
- sheep
- plant density
- botanical composition
- rangelands
- canopy
- grazing
- Library Collection RecordThe larkspur mirid (Hopplomachus affiguratus) is host specific to tall larkspur (Delphinium barbeyi Huth). These insects suck cell solubles from leaves and reproductive racemes, causing flowers to…Publication Date 1997-07-01
- hopplomachus affiguratus
- prevention
- damage
- biological control agents
- leaves
- poisoning
- flowers
- Delphinium barbeyi
- cattle
- Utah
- grazing
- feeding preferences
- poisonous plants
- Library Collection RecordDiet botanical composition, fecal nitrogen percent, and fecal phosphorus percent were determined seasonally during 1991 and 1992 for 3 cattle breeds (Barzona, Brangus, Beefmaster) grazing late-seral…Publication Date 1998-05-01
- rain
- Brangus
- Beefmaster
- beef breeds
- barzona
- selective grazing
- breed differences
- cattle
- seasonal variation
- botanical composition
- New Mexico
- Library Collection RecordWe studied the diets of desert mule deer (Odocoileus hemionus crooki Mearns) at 3 sites in Arizona and collated this information with that of previous diet studies of desert mule deer across their…Publication Date 1997-09-01
- odocoileus hemionus crooki
- xerophytes
- browse plants
- diet
- Odocoileus hemionus
- seasonal variation
- botanical composition
- Arizona
- Library Collection RecordA series of summer grazing studies were conducted to evaluate cattle consumption of preflowering tall larkspur (Delphinium barbeyi [Huth] or D. occidentale [Wats.] Wats.) on mountain rangeland in…Publication Date 1997-07-01
- concentration
- Delphinium occidentale
- leaves
- alkaloids
- poisoning
- flowers
- Delphinium barbeyi
- Idaho
- cattle
- range management
- Utah
- grazing
- Colorado
- poisonous plants
- Library Collection RecordWe studied resource partitioning between cattle and deer (Odocoileus virginianus Boddaert) within replicated treatments of continuous and short-duration grazing at heavy and moderate stocking rates.…Publication Date 1997-11-01
- interspecific competition
- browse plants
- continuous grazing
- Odocoileus virginianus
- stocking rate
- species differences
- forbs
- rotational grazing
- cattle
- Texas
- seasonal variation
- botanical composition
- grasses
- feeding preferences
- 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 studied cattle and deer diet quality within replicated grazing treatments of continuous and short-duration grazing at heavy and moderate stocking rates. The study was conducted at the Welder…Publication Date 1997-11-01
- energy content
- protein content
- continuous grazing
- Odocoileus virginianus
- stocking rate
- species differences
- rotational grazing
- crude protein
- in vitro digestibility
- range management
- botanical composition
- beef cattle
- feeding preferences
- 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 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 RecordExtensive rangelands and other vegetation types that we know today formed while atmospheric carbon dioxide (CO2) concentration was low (50 to 75% of today's concentration). Fossil fuel burning…Publication Date 1997-11-01
- long term experiments
- C3 plants
- respiration
- plant-water relations
- C4 plants
- biogeochemical cycles
- stomatal conductance
- plant ecology
- carbon dioxide
- atmosphere
- photosynthesis
- species differences
- biomass production
- botanical composition
- rangelands
- literature reviews
- grazing
- grasses
- Library Collection RecordGrasslands of northern Tierra del Fuego sustain 1 sheep/ha and are very extensively managed, with flocks roaming freely in large paddocks (2,000-4,000 ha). This system requires knowledge of landscape…Publication Date 1998-01-01
- lamb production
- ecotypes
- Poa
- extensive livestock farming
- indicator species
- landscape ecology
- ground cover
- soil fertility
- mortality
- stocking rate
- natural grasslands
- plant communities
- sheep
- Argentina
- botanical composition
- soil water
- Library Collection RecordTemporal changes in land use, vegetation cover types, and landscape structure were examined in a hardwood forest-tallgrass prairie ecotone in northern Oklahoma using a Geographic Information System.…Publication Date 1997-05-01
- deciduous forests
- landscape ecology
- geographic information systems
- ground cover
- land use
- population density
- species diversity
- Oklahoma
- natural grasslands
- prairies
- botanical composition
- Library Collection RecordWildfire in the growing season is relatively frequent and interest is increasing in using growing-season fire in management of tallgrass prairie. However, the influence of fire in the growing season…Publication Date 1998-01-01
- seral stages
- wildfire management
- loam soils
- ecological succession
- fires
- fire effects
- old fields
- prescribed burning
- forbs
- Oklahoma
- biomass production
- plant communities
- prairies
- botanical composition
- grasses
- 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 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 RecordMany studies have reported nitrogen (N) fertilization of rangeland, but few have reported changes in botanical composition, which may be as important as changes in forage production, or were…Publication Date 1998-07-01
- long term experiments
- grassland improvement
- cost-benefit analysis
- rain
- nitrogen fertilizers
- stocking rate
- forbs
- Pascopyrum smithii
- Bouteloua gracilis
- Wyoming
- application rates
- biomass
- botanical composition
- grasses
- Library Collection RecordMost rangelands in northern Nuevo Leon, Mexico, have been grazed intensely for more than 10 years simultaneously by cattle and white-tailed deer (Odocoileus virginianus texanus). There is a lack of…Publication Date 1997-05-01
- chaparral
- browse plants
- continuous grazing
- species diversity
- Odocoileus virginianus
- diet
- rotational grazing
- natural grasslands
- cattle
- seasonal variation
- botanical composition
- Library Collection RecordKnowing that sheep or goats can be used to control brush we quantified pasture changes during and after brush control. Over an 8-year period we measured the effects of control (no soil amendment),…Publication Date 1997-03-01
- liming
- West Virginia
- forage legumes
- phosphorus fertilizers
- brush control
- soil pH
- grazing experiments
- sheep
- goats
- application rates
- botanical composition
- Library Collection RecordSeasonal changes in the botanical composition of diets and protein quality of forages consumed by cottontail rabbits (Sylvilagus floridanus) were monitored on disturbed and undisturbed upland…Publication Date 1997-09-01
- protein quality
- essential amino acids
- deciduous forests
- disturbed soils
- highlands
- Sylvilagus floridanus
- habitats
- protein content
- range condition
- chemical composition
- diet
- Oklahoma
- prairies
- seasonal variation
- botanical composition
- forage
- maturity stage
- Library Collection RecordPhysical and chemical traits of grass tillers can be strongly correlated. Understanding such patterns would help define physiological development of tillers and changes in quality of forage in…Publication Date 1998-05-01
- Bouteloua
- Schizachyrium scoparium
- chlorophyll
- Calamovilfa longifolia
- ash
- hemicellulose
- cell walls
- Andropogon hallii
- lignin
- protein content
- fiber content
- Nebraska
- weight
- tillers
- in vitro digestibility
- botanical composition
- forage
- dry matter
- maturity stage
- Library Collection RecordRiparian ecosystems are the final terrestrial zone before runoff water enters a stream. They provide the last opportunity to decrease non-point source pollution delivery to streams by removing…Publication Date 1998-05-01
- stand density
- riparian buffers
- rain
- runoff
- botanical composition
- infiltration
- simulation
- Colorado
- Library Collection RecordEvaluating seedbank ecology is critical for understanding plant community development and successional patterns and for identifying factors regulating population dynamics. The relationships among…Publication Date 1998-01-01
- chilling requirement
- Sporobolus cryptandrus
- soil depth
- seed banks
- Carex
- seedling emergence
- plant ecology
- sandy soils
- range condition
- Nebraska
- forbs
- seed germination
- prairies
- botanical composition
- grasses
- Library Collection RecordSeed production of big sagebrush (Artemisia tridentata Nutt.) plants established from containerized seedlings was compared to plants established by direct seeding. A garden of 'Hobble Creek…Publication Date 1997-11-01
- seed production
- container-grown plants
- root systems
- mortality
- Artemisia tridentata
- biomass
- Utah
- Library Collection RecordDespite extensive coverage and long-term use, the extent to which shadscale [Atriplex confertifolia (Torr. &Frem.) Wats.] community dynamics are driven by grazing rather than by climate and…Publication Date 1998-03-01
- artemisia spinescens
- Hilaria
- Sporobolus cryptandrus
- Achnatherum hymenoides
- Atriplex confertifolia
- rain
- Krascheninnikovia lanata
- sheep
- biomass
- seasonal variation
- Utah
- canopy
- grazing
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