Rangeland Ecology & Management
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- Library Collection RecordNative pasture and Old World bluestems (Bothriochloa spp.) have contrasting herbage production characteristics that suggest potential for incorporation into a complementary forage system. We compared…Publication Date 2001-07-01
- growth periods
- costs and returns
- economic analysis
- liveweight gain
- stocking rate
- pastures
- profitability
- Oklahoma
- biomass production
- botanical composition
- grazing
- beef cattle
- forage
- mixed prairie
- complementary forages
- old world bluestem
- Bothriochloa
- livestock performance
- Library Collection RecordPopulations of an introduced woody weed, prickly acacia (Acacia nilotica (L.) Delile ssp. indica (Benth.) Brenan syn. Acacia arabica (Lam.) Willd. ssp. indica Benth.), were surveyed at 4 sites in…Publication Date 2001-07-01
- regeneration
- Weeds
- quarantine
- Queensland
- seed dispersal
- highlands
- rain
- seedlings
- pastures
- selective grazing
- woody plants
- rotational grazing
- sheep
- plant density
- introduced species
- browsing
- grazing
- plant height
- Life-stage profiles
- rainfall
- population dynamics
- regeneration
- cattle
- woody weeds
- Library Collection RecordStructural anti-quality characteristics are physical plant traits that reduce the performance and productivity of herbivores and quality of their agricultural products. Most structural anti-quality…Publication Date 2001-07-01
- shear strength
- animal injuries
- wool
- performance
- tensile strength
- foraging
- habitats
- plant morphology
- duration
- plant anatomy
- pastures
- digestibility
- sustainability
- botanical composition
- quality
- pasture plants
- literature reviews
- grazing
- feed intake
- bite size
- chewing
- canopy structure
- intake rate
- physical plant defenses
- spines
- Library Collection RecordThe greatest anti-quality associated with eastern temperature pasture grasses is the result of ergot alkaloids found in endophyte-infected (Neotyphodium ceonophialum) tall fescue (Festuca arundinacea…Publication Date 2001-07-01
- body temperature
- necrosis
- Claviceps
- Claviceps purpurea
- mutualism
- Phalaris arundinacea
- lactation
- Neotyphodium coenophialum
- sexual reproduction
- Festuca arundinacea
- Lolium perenne
- alkaloids
- Lolium multiflorum
- persistence
- seeds
- pastures
- growth rate
- literature reviews
- ergot alkaloids
- tall fescue
- ergotism
- perennial ryegrass
- reed canarygrass
- annual ryegrass
- Library Collection RecordRuminants are a diverse group of mammals, both domestic and wild species, that exhibit microbial fermentation prior to gastrointestinal activity. During the digestive process, glycosides and other…Publication Date 2001-07-01
- metabolites
- metabolism
- clinical aspects
- substrates
- symptoms
- glycosides
- chemical structure
- treatments
- nutrient availability
- phytotoxins
- pastures
- ruminants
- rumen fermentation
- range management
- rangelands
- pasture plants
- literature reviews
- forage
- poisonous plants
- ruminants
- cattle
- rumen microbes
- Library Collection RecordPredation by coyotes (Canis latrans) on livestock continues to plague producers in the United States. Agricultural interests are concerned about coyote predation because sheep inventories in the U.S.…Publication Date 1999-09-01
- territory
- working animals
- contraception
- trapping
- guard animals
- losses
- coyotes
- lambs
- predator-prey relationships
- llamas
- predation
- predator control
- population density
- hunting
- Western United States
- guard dogs
- population dynamics
- sheep
- wildlife management
- literature reviews
- Library Collection RecordThe effects of grazing, fertilizing, and seeding on persistence of herbaceous species was monitored by point quadrat about every second year from 1975 to 1989 in a low-fertility pasture in the aspen…Publication Date 1999-01-01
- change
- Medicago sativa
- Bromus inermis
- Festuca rubra
- grassland improvement
- sown grasslands
- ground cover
- Poa pratensis
- continuous grazing
- Saskatchewan
- rain
- pastures
- vegetation
- forbs
- rotational grazing
- botanical composition
- Library Collection RecordTwo small-plot grazing trials were conducted in the spring of 1996 and the winter of 1997 to determine whether sheep would differentially graze fourwing saltbush [Atriplex canescens (Pursh) Nutt.] on…Publication Date 1998-11-01
- Atriplex canescens
- gender differences
- palatability
- dioecy
- winter
- spring
- sheep
- biomass
- grazing
- feeding preferences
- Library Collection RecordIn continuous grazing systems the amount of herbage and its quality is a matter of primary concern. However, at moderate stocking, cattle grazing usually leads to the generation of patches differing…Publication Date 1998-11-01
- areas
- patches
- density
- Festuca arundinacea
- continuous grazing
- stocking rate
- pastures
- cattle
- nitrogen content
- biomass
- Argentina
- grazing
- feeding preferences
- plant height
- 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 RecordWe identified land uses, vegetation cover types, and landscape patterns associated with avian community diversity in 2 rural landscapes in a hardwood forest-tallgrass prairie ecotone that differ with…Publication Date 1999-09-01
- rural population
- suburban areas
- roads
- arable land
- patch size
- population change
- breeding places
- deciduous forests
- wild birds
- shrublands
- landscapes
- habitat selection
- ground cover
- land use
- population density
- ecotones
- grasslands
- brush control
- species diversity
- pastures
- Oklahoma
- wildlife management
- prairies
- Library Collection RecordCarefully-managed livestock grazing has been offered as a tool to improve the forage quality of graminoids on big game winter range. Formal testing of this theory has thus far been done using hand…Publication Date 2000-01-01
- Festuca idahoensis
- Pseudoroegneria spicata
- Carex geyeri
- stems
- Carex
- savannas
- Cervus elaphus
- rain
- stocking rate
- Oregon
- crude protein
- shrubs
- sheep
- in vitro digestibility
- biomass
- canopy
- grazing
- forage
- Library Collection RecordLivestock-guarding dogs are an effective way of protecting rangeland sheep from predators. However, open mountain/forest range and widely ranging sheep are factors that may make adaptation to…Publication Date 1999-07-01
- nocturnal activity
- social integration
- extensive livestock farming
- predation
- training (animals)
- cost-benefit analysis
- Norway
- sheep dogs
- dog breeds
- Great Pyrenees
- Ursus arctos
- pastures
- sheep
- Library Collection RecordWe documented behaviors of Great Pyrenees livestock-guarding dogs toward people, livestock, dogs, horses, reindeer, and bear to determine if they might be suitable for protecting livestock in Norway…Publication Date 1999-01-01
- Norway
- reindeer
- predators
- sheep dogs
- dog breeds
- aggression
- humans
- Ursus
- Gulo gulo
- Great Pyrenees
- Lynx
- sheep
- Library Collection RecordInvasion of pristine grasslands by caldén (Prosopis caldenia Burkart), and increased densities of this species in savannas are well-known vegetation changes in the semiarid region of central…Publication Date 1998-11-01
- landscape ecology
- Prosopis
- savanna woodlands
- ecological succession
- population dynamics
- rain
- shrubs
- sheep
- cattle
- Argentina
- grazing
- Library Collection RecordThe epidermal remains of 4 poisonous plant species that produce acute intoxication in ruminants were quantified by microhistological analysis in the gastro-intestinal content of sheep experimentally…Publication Date 1998-11-01
- Conium maculatum
- digestive tract
- Wedelia glauca
- Baccharis coridifolia
- Cestrum parqui
- Cestrum
- plant tissues
- poisoning
- cell walls
- rumen contents
- identification
- digestibility
- digesta
- sheep
- Argentina
- poisonous plants
- Library Collection RecordThe seasonal variations in nitrogen and phosphorus fractions and cations in 2 species of Atriplex common to Western Australia (Atriplex amnicola P.G. Wilson and Atriplex nummularia Lindl.) were…Publication Date 2000-01-01
- Atriplex amnicola
- plant proteins
- metal ions
- fractionation
- Atriplex nummularia
- Western Australia
- nutrient requirements
- solubility
- ambient temperature
- rain
- sodium
- species differences
- nitrogen
- potassium
- phosphorus
- sheep
- seasonal variation
- 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 RecordThe scientific study of rangelands in the western United States, started with the first collection of natural history specimens in the 18th century. Gradually over the 19th century, a basic catalog…Publication Date 2000-01-01
- land productivity
- Rocky Mountain region
- public domain
- history
- range condition
- sustainability
- sheep
- overgrazing
- range management
- rangelands
- Library Collection RecordCalibrated predictive relationships obtained from simple and multiple regression of thematic mapper or broad-band (BB) and 1.4 nm interval or narrow-band (NB) spectral data were evaluated for…Publication Date 1999-05-01
- Artemisia tripartita
- Balsamorhiza
- spectral analysis
- balsamorhiza saggitta
- Pseudoroegneria spicata
- wavelengths
- reflectance
- errors
- controlled grazing
- remote sensing
- multispectral imagery
- range condition
- Idaho
- sheep
- seasonal variation
- canopy
- 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 RecordThree trials were conducted to determine if low ingestion of some leafy spurge (Euphorbia esula L.) by sheep is primarily due to differences in sheep or in leafy spurge. In the first trial, pastures…Publication Date 1999-01-01
- organic compounds
- dried fodders
- lambs
- geographical variation
- weed palatability
- grassland improvement
- Euphorbia esula
- selective grazing
- Idaho
- sheep
- fertilizer
- feeding preferences
- North Dakota
- maturity stage
- Library Collection RecordGeneralized linear mixed models were used to obtain best linear unbiased predictions (BLUP's) of herbivore preferences for range plant species from expert knowledge contained in range site…Publication Date 1998-01-01
- deer
- resource utilization
- Edwards Plateau
- Cyperaceae
- mixed grazing
- interspecific competition
- legumes
- browse plants
- best linear unbiased prediction
- linear models
- forbs
- shrubs
- sheep
- goats
- cattle
- Texas
- grasses
- feeding preferences
- Library Collection RecordSpotted knapweed (Centaurea maculosa Lam.), an aggressive Eurasian forb, is replacing many native perennial grasses such as Idaho fescue (Festuca idahoensis Elmer.) on foothills of the Northern Rocky…Publication Date 1997-07-01
- Festuca idahoensis
- roots
- carbohydrates
- shoots
- weed control
- biomass production
- sheep
- Centaurea maculosa
- range management
- Montana
- plant competition
- grazing
- chemical constituents of plants
- 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 RecordIn sacco dry matter degradability (DMD) of the most commonly consumed range forages by llamas and sheep in the arid highlands of Bolivia was measured during the wet and dry seasons to determine if…Publication Date 1997-07-01
- in sacco dry matter degradation
- degradation
- Bolivia
- llamas
- highlands
- arid lands
- digestibility
- kinetics
- shrubs
- sheep
- grasses
- forage
- dry matter
- Library Collection RecordThe study determined the species components of the diets of small ruminants grazing mountain ranges of the Montseny Biosphere Reserve (Catalunya, NE Spain). Three mixed flocks of sheep and goats, led…Publication Date 1998-07-01
- montane forests
- Erica arborea
- Calluna vulgaris
- Quercus ilex
- heathlands
- mixed grazing
- Festuca
- Spain
- foraging
- feces composition
- selective grazing
- species differences
- forbs
- shrubs
- diets
- sheep
- goats
- rangelands
- grasses
- Library Collection RecordLeafy spurge (Euphorbia esula L), an aggressive Eurasian forb, is invading native upland ranges dominated by bluebunch wheatgrass (Pseudoroegneria spicata [Pursh] A. Love) and Idaho fescue (Festuca…Publication Date 1998-03-01
- Festuca idahoensis
- Pseudoroegneria spicata
- seed banks
- Euphorbia esula
- Idaho
- sheep
- plant density
- grazing
- plant height
- Library Collection RecordSpotted knapweed (Centaurea Maculosa Lam.), a Eurasian perennial forb, is replacing many native perennial grasses, such as Idaho fescue (Festuca idahoensis Elmer.), in foothills of the Northern Rocky…Publication Date 1997-07-01
- native plants
- Festuca idahoensis
- weed control
- seedlings
- Idaho
- plant communities
- sheep
- plant density
- Centaurea maculosa
- range management
- grazing
- Library Collection RecordResearch on diet selection is limited by inadequate techniques for determining botanical composition of diets. Our objective was to determine if near infrared reflectance spectroscopy (NIRS) of fecal…Publication Date 1998-07-01
- spectral analysis
- alfalfa
- alfalfa hay
- Euphorbia esula
- calibration
- feces
- infrared spectroscopy
- hay
- sheep
- goats
- feeding preferences
- Library Collection RecordThe objective of this study was to determine how rangeland hydrology of oak, juniper, bunchgrass and shortgrass vegetation types is altered by fire. The research was conducted at the Sonora…Publication Date 1997-03-01
- bunchgrass
- shortgrasses
- Aristida
- soil aggregates
- Juniperus ashei
- soil organic matter
- water yield
- Quercus virginiana
- woodland grasslands
- runoff
- prescribed burning
- sheep
- goats
- Texas
- sediment yield
- plant litter
- rangelands
- grazing
- infiltration
- grasses
- bulk density
- 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 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 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
- Library Collection RecordMost farms in the semi-arid region of Morocco are mixed cereal-livestock producers. Livestock, dominated by sheep, account for more than one third of farm income but production is far below potential…Publication Date 1998-05-01
- wool production
- Medicago polymorpha
- Medicago truncatula
- ley farming
- Morocco
- fallow
- lambs
- ewes
- liveweight gain
- body weight
- rain
- semiarid zones
- sheep
- drought
- grazing
- Library Collection RecordDepth to a root restricting layer affects both soil moisture and nutrient availability, resources strongly correlated to plant cover and production. We evaluated the potential of 2 electromagnetic…Publication Date 1998-07-01
- Artemisia tripartita
- Balsamorhiza
- Pseudoroegneria spicata
- autumn
- soil depth
- electrical conductivity
- controlled grazing
- spring
- sheep
- botanical composition
- Library Collection RecordGrazing system and stocking rate effects on standing crop of species and relative species composition of tallgrass prairies in north-central Oklahoma were evaluated from 1989 to 1993. Twelve…Publication Date 1998-03-01
- continuous grazing
- rain
- stocking rate
- pastures
- forbs
- rotational grazing
- Oklahoma
- prairies
- biomass
- botanical composition
- grasses
- Library Collection RecordSome have argued that federal grazing preferences or permits are a form of private property and should be recognized as such by the federal government. This viewpoint studies the grazing controversy…Publication Date 1997-07-01
- legal rights
- public domain
- pastures
- United States
- grazing
- Library Collection RecordSeasonal wildlife observations were made along transects on 2 pastures in late seral and 2 pastures in mid seral condition in southcentral New Mexico in non-drought and drought years (1993, 1994).…Publication Date 1997-11-01
- seral stages
- wild birds
- arid zones
- wildlife
- climax communities
- grasslands
- rain
- pastures
- shrubs
- drought
- botanical composition
- New Mexico
- Library Collection RecordSoil nutrients in topsoils (0-7.5 cm) on grazed hilly and steep land on 2 high country sheep farms with contrasting climate in the upper Waitaki district, South Island, New Zealand, were compared…Publication Date 1996-07-01
- cation exchange capacity
- upland soils
- topsoil
- New Zealand
- sown grasslands
- highlands
- pH
- sustainability
- sheep
- grazing
- Library Collection RecordThe perceived economic damage to forage crops in Montana attributed to native ungulates during 1992 was estimated using a mail survey of 2,200 randomly selected farms and ranches. The 1,120…Publication Date 1996-07-01
- farm surveys
- crop damage
- crop losses
- vertebrate pests
- compensation
- hay fields
- haystacks
- fields
- farm size
- Odocoileus virginianus
- pastures
- Antilocapra americana
- hay
- Odocoileus hemionus
- Cervus elaphus canadensis
- Montana
- Library Collection RecordLeafy spurge (Euphorbia esula L.) is a noxious weed on rangelands throughout the Northern Great Plains. Most of these ranges are grazed by cattle which do not use leafy spurge as forage. Although…Publication Date 1996-07-01
- profits
- cattle production
- fencing
- farm budgeting
- carrying capacity
- Euphorbia esula
- ranching
- cost-benefit analysis
- stocking rate
- selective grazing
- sheep
- Montana
- 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 RecordAbility to compete with alien weeds may be one factor enabling high-seral, native bunchgrasses to persist on degraded rangelands. This study examined the effect of competition from cheatgrass (Bromus…Publication Date 1995-09-01
- strain differences
- selection responses
- ecotypes
- Festuca idahoensis
- shoots
- Bromus tectorum
- pastures
- weight
- Oregon
- tillers
- biomass production
- plant competition
- rangelands
- plant height
- Library Collection RecordTarbush (Flourensia cernua DC.) contributes substantially to the Chihuahuan Desert shrub biomass, but is browsed sparingly by livestock. This study was designed to assess nutritional benefits and/or…Publication Date 1996-07-01
- pleuraphis mutica
- volatile fatty acids
- dose response
- leaves
- Flourensia
- rumen fluids
- water intake
- body weight
- fiber content
- crude protein
- digesta
- pH
- transit time
- sheep
- rumen fermentation
- grasses
- New Mexico
- dry matter
- feed intake
- Library Collection RecordFlourensia cernua DC. (tarbush) is a deciduous shrub with potential as a high-protein forage source for livestock. Twenty-four Polypay X Rambouillet wethers housed in metabolism crabs were used to…Publication Date 1996-07-01
- pleuraphis mutica
- cholesterol
- blood chemistry
- digestible protein
- nitrogen retention
- urea
- alfalfa
- nitrogen balance
- weed palatability
- leaves
- Flourensia
- body weight
- sheep
- grasses
- New Mexico
- dry matter
- feed intake
- Library Collection RecordThe effects of reducing sheep grazing on upland vegetation and wild herbivores was studied at 11 sites in the Scottish Highlands. Areas where sheep had been removed for periods of up to 25 years were…Publication Date 1996-07-01
- Scotland
- sward
- voles
- sheep manure
- ecological succession
- Cervus elaphus
- stocking rate
- prescribed burning
- plant communities
- sheep
- botanical composition
- rangelands
- canopy
- grazing
- plant height
- Library Collection RecordLehmann lovegrass (Eragrostis lehmanniana Nees) seed (germination 96%, dormant 0%) was used in 4 experiments to study the potential of sheep as a dispersal agent. Five, 4-year-old, ruminally…Publication Date 1997-01-01
- mastication
- sheep dung
- seed dispersal
- seeds
- selective grazing
- sheep
- in vitro digestibility
- rumen fermentation
- seed germination
- Eragrostis lehmanniana
- introduced species
- Library Collection RecordThe objective of this study was to evaluate the potential of near infrared reflectance spectroscopy (NIRS) for estimating botanical composition of esophageal extrusa samples. Spectral data were…Publication Date 1996-03-01
- sampling
- Andropogon gerardii
- esophagus
- infrared spectroscopy
- forbs
- diet
- Oklahoma
- digesta
- sheep
- cattle
- botanical composition
- grasses
- Library Collection RecordThirty-six weanling steer calves (avg wt = 174 +/- 14 kg) were grazed on either wheat, irrigated improved, or native rangeland pastures from December 1989 to December 1990. Irrigated improved…Publication Date 1995-11-01
- Triticum aestivum
- Festuca arundinacea
- irrigated pastures
- Cynodon dactylon
- grassland improvement
- liveweight gain
- Bothriochloa ischaemum
- yields
- chemical composition
- pastures
- diet
- steers
- digestibility
- New Mexico
- forage
- dry matter
- feed intake
- Elytrigia elongata
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