Rangeland Ecology & Management
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- Library Collection RecordThe decline of traditional pastoral systems has highlighted the problem of managing shrub encroachment on successional shrublands in the Mediterranean region, especially in marginal habitats. A long-…Publication Date 2007-09-01
- Calicotome villosa
- fire
- grazing
- herbicides
- Mediterranean
- Sarcopoterium spinosum
- Library Collection RecordIncreases of velvet mesquite (Prosopis velutina Woot.) in southwestern grasslands might have been caused by livestock consumption of fuels that once burned with sufficient frequency and intensity to…Publication Date 2007-09-01
- burn
- exotic grasses
- foliage volume
- fuels
- grazing
- livestock
- Library Collection RecordThe spread of the invasive, Eurasian spotted knapweed (Centaurea maculosa Lam.) across the northwestern United States would be reduced if livestock regularly consumed it. We determined if white-face…Publication Date 2007-09-01
- behavior
- grazing
- intake
- Library Collection RecordInvasion of rangeland by exotic forage species threatens ecosystem structure and function and can cause catastrophic economic losses. Herbicide treatments often are the focus of management efforts to…Publication Date 2007-05-01
- Chinese bush cloer
- disturbance ecology
- fire ecology
- grazing
- management
- heterogeneity
- herbivory
- invasion
- macro-ecology
- Sericea lespedeza
- Library Collection RecordThe objectives of the current study were to determine the amounts of above- and below-ground plant biomass production, P uptake by forage, and P concentration of cool-season grass forage as…Publication Date 2007-05-01
- forage quality
- grazing
- root length diversity
- rotational stocking
- Library Collection RecordThe presence of grazing cattle near open waterways has created environmental concerns related to the potential for water contamination. In Florida the removal of cattle from grazing landscapes or…Publication Date 2007-01-01
- forage
- grazing
- beef cattle
- stocking density
- Library Collection RecordRanch management practices aimed at cattle and pasture vegetation have the potential to impact other animals as well, including nontarget organisms. Soil-inhabiting nematodes are often used as…Publication Date 2007-01-01
- bioindicators
- grazing
- nontarget organisms
- pastures
- ranch management
- richness
- trophic structure
- Library Collection RecordHousing developments are replacing ranches in the southwestern United States, with potentially significant but little-studied ecological effects. We counted grasshoppers (Orthoptera: Acrididae) and…Publication Date 2006-11-01
- Acrididae
- fire
- forbs
- grasslands
- grazing
- livestock
- mesquite
- oak
- Library Collection RecordFire and grazing are interactive disturbance processes that are important to the structure and function of grassland ecosystems. Studies of nitrogen (N) availability report different effects…Publication Date 2006-11-01
- shifting mosaic
- grazing
- herbivory
- N availability
- net N mineralization
- Library Collection RecordScaled quail (Callipepla squamata pallida Vigors) are closely associated with semidesert grasslands of the southwestern United States, and populations have declined by as much as 50% since 1960.…Publication Date 2006-05-01
- Callipepla squamata
- grazing
- livestock
- exotic grasses
- semidesert grassland
- Chihuahuan desertscrub
- Library Collection RecordPrairie dogs (Cynomys spp.) have been labeled keystone species because of the role they play as disturbance creators and ecosystem engineers in the western grasslands of North America. Most studies…Publication Date 2006-01-01
- Cynomys gunnisoni
- Cynomys ludovicianus
- shoot nitrogen
- grazing
- Library Collection RecordBotanical composition of mule deer and elk diets in winter, spring, summer, and autumn was studied during 1998 and 1999 on woodland rangeland in north-central New Mexico using microhistological…Publication Date 2005-07-01
- rangelands
- forage
- wildlife
- competition
- grazing
- Library Collection RecordA dense mountain big sagebrush (Artemisia tridentata Nutt. ssp. vaseyana [Rydb] Beetle) canopy suppresses understory vegetation. Rambouillet ewes with high and low dietary preferences for mountain…Publication Date 2005-07-01
- bitterbrush
- diet selection
- grazing
- sheep
- Library Collection RecordCattle grazing is often implicated as a factor that reduces vegetative cover and the abundance of important forage plants for wildlife. Recent declines in northern Arizona populations of pronghorn (…Publication Date 2005-05-01
- Arizona grassland
- grazing
- horizontal cover
- plant composition
- plant cover
- semiarid grasslands
- Library Collection RecordIntroduction and subsequent invasion of smooth brome (Bromus inermis Leyss.) into native cool- and warm-season grassland communities has become problematic where presence of native species is…Publication Date 2005-03-01
- cool-season grasses
- grazing
- prescribed fire
- microbial biomass
- mycorrhizae
- Library Collection RecordOptimum habitat condition is a concept typically used for wildlife rather than livestock. The definition for optimal livestock habitat will vary with management objectives. Abiotic factors, such as…Publication Date 2005-03-01
- distribution
- grazing
- foraging
- behavioral mechanisms
- management
- Library Collection RecordForage quality and quantity are important factors affecting livestock production from grazing lands. ‘‘Greenness’’ has been proposed as an indicator of herbage quality in semiarid environments,…Publication Date 2005-03-01
- northern Great Plains
- grazing
- forage nutritive quality
- rangelands
- Montana
- Library Collection RecordMontezuma quail (Cyrtonyx montezumae Vigors) are closely associated with oak woodlands (Quercus spp.). Livestock grazing and cover availability are considered important factors affecting Montezuma…Publication Date 2004-09-01
- Arizona
- Cyrtonyx montezumae
- grazing
- habitat selection
- livestock
- Madrean evergreen woodland
- Montezuma quail
- Library Collection RecordStubble height regulations are frequently used to manage livestock grazing of herbaceous riparian vegetation. The objective of this study was to determine the impact of stubble height, time of…Publication Date 2004-09-01
- grazing
- clipping
- stubble height
- compensatory growth
- Library Collection RecordManagement of feral horses grazing on Atlantic and Gulf coast barrier islands requires information on seasonal habitat preferences and distribution of important forage species to maintain stable…Publication Date 2004-05-01
- barrier island
- forage
- grazing
- North Carolina
- preferential habitat utilization
- seasonal utilization
- Library Collection RecordA 2-year study was conducted at the Agriculture and Agri-Food Canada Stavely Range Substation, Alberta. The objective was to quantify and simulate the soil water status of small grassland watersheds…Publication Date 2004-03-01
- grazing
- model performance
- moisture budget
- Library Collection RecordThe federal grazing fee is currently set using the Public Rangeland Improvement Act (PRIA) fee formula established in 1978 and modified in 1986. The formula is adjusted annually using indices of…Publication Date 2003-11-01
- market prices
- public lands
- public policy
- economic analysis
- estimation
- grazing
- grazing leases
- forage values
- public lands grazing
- grazing permits
- Public Rangeland Improvement Act (PRIA)
- Library Collection RecordTrue mountain mahogany (Cercocarpus montanus Raf.) provides nutritional winter forage for big game species in the mountain brush zone. To determine browsing effects, animal use, percent vegetation…Publication Date 2003-11-01
- Utah
- canopy
- Cercocarpus montanus
- browsing
- wildlife food habits
- plant characteristics
- utilization
- grazing
- big game
- winter range
- herbivory
- mountain brush
- exclosures
- moose
- deer
- elk
- pronghorn
- Library Collection RecordWe investigated the use of prairie dog towns by cattle (Bos taurus) on the shortgrass steppe of northeastern Colorado by conducting surveys of cattle and vegetation from June to August 1999. Cattle…Publication Date 2003-09-01
- Vulpia
- shortgrass steppe
- Aristida purpurea var. longiseta
- Cynomys ludovicianus
- Sphaeralcea coccinea
- vegetation cover
- habitat preferences
- Buchloe dactyloides
- Carex
- Pascopyrum smithii
- Bouteloua gracilis
- prairies
- botanical composition
- grazing
- Colorado
- beef cattle
- feeding preferences
- cattle
- prairie dogs
- shortgrass steppe
- Library Collection RecordLivestock grazing in riparian areas is an important management issue on both private and public lands. A study was initiated in northeastern Oregon to evaluate the economic and ecological impacts of…Publication Date 2003-09-01
- cow-calf operations
- bioeconomic models
- input costs
- livestock prices
- public lands
- production costs
- riparian areas
- water supply
- feeding behavior
- Oregon
- precipitation
- spatial distribution
- range management
- grazing
- beef cattle
- Library Collection RecordA growth function for range calves is estimated using a polynomial function of calf age that accounts for weather variation, sex, prior calf weights relative to a norm, and a compensatory gain factor…Publication Date 2003-09-01
- slaughter weight
- herd size
- cow-calf operations
- birth weight
- geographical variation
- carrying capacity
- production costs
- liveweight gain
- calves
- gender differences
- Hereford
- profitability
- feed supplements
- precipitation
- grazing
- Arizona
- beef cattle
- optimal calf sale weight
- livestock supplementation effects
- livestock marketing
- polynomial age growth function
- rainfall
- Library Collection RecordThe objective of this study was to identify and model environmental and management factors associated with cattle feces deposition patterns across annual rangeland watersheds in the Sierra Nevada…Publication Date 2003-09-01
- dry seasons
- wet season
- cattle manure
- forage quality
- watershed hydrology
- slope
- linear models
- defecation
- aspect
- water supply
- animal preferences
- water troughs
- California
- spatial distribution
- range management
- seasonal variation
- grazing
- beef cattle
- water quality
- pathogens
- grazing distribution
- watershed management
- Library Collection RecordCommunity-level (per unit area) and individual tiller reproductive biomass inside and outside of long-term exclosures on the northern winter range of Yellowstone National Park, USA were compared.…Publication Date 2003-09-01
- Yellowstone National Park
- bison
- seed productivity
- Cervus elaphus
- winter
- Antilocapra americana
- tillering
- Wyoming
- grazing intensity
- biomass
- botanical composition
- rangelands
- defoliation
- literature reviews
- grasses
- grasslands
- ungulates
- grazing
- clipping
- seed production and yield
- Yellowstone National Park
- literature reviews
- Library Collection RecordTo quantify the effects of season of use on beef cattle distribution relative to the riparian area, 52 cow/calf pairs were used to evaluate 1) early summer grazing (mid-June to mid-July), and 2) late…Publication Date 2003-07-01
- water requirements
- late summer
- lactation
- early summer
- streams
- nutrient content
- highlands
- water intake
- riparian areas
- calves
- ambient temperature
- forage quality
- stocking rate
- beef cows
- Oregon
- summer
- spatial distribution
- range management
- seasonal variation
- botanical composition
- grazing
- beef cattle
- feeding preferences
- beef cattle
- distribution patterns
- riparian areas
- season of use
- vegetation utilization
- Library Collection RecordNative grasslands are a sink for atmospheric CO2 sequestration, but ways for extending site-specific CO2 flux measurements to a regional scale are lacking. Objectives of this study were to determine…Publication Date 2003-07-01
- carbon sequestration
- biogeochemical cycles
- evapotranspiration
- remote sensing
- carbon dioxide
- leaf area index
- vegetation
- precipitation
- shrubs
- semiarid zones
- prairies
- biomass
- range management
- seasonal variation
- botanical composition
- grazing
- North Dakota
- global carbon cycle
- rangelands
- Bowen ratio
- remote sensing
- sequestration
- Library Collection RecordMany alfalfa (Medicago spp.) cultivars have limited ability to persist under grazing and therefore, a key step in incorporating alfalfa into pastures and rangelands is choosing a grazing tolerant…Publication Date 2003-05-01
- grazing tolerance
- range improvement
- Medicago sativa subsp. falcata
- Medicago sativa nothosubsp. varia
- biological resistance
- strain differences
- cold tolerance
- basal area
- hybrids
- selection criteria
- mortality
- cultivars
- environmental factors
- grazing
- North Dakota
- Medicago sativa spp. falcata
- mob-grazing
- cold tolerance
- grazing tolerance
- Library Collection RecordHighly intensive stocking of dairy cattle on continuously grazed pasture coupled with liberal applications of commercial fertilizer can lead to increased losses of agricultural nutrients, which is a…Publication Date 2003-05-01
- farm size
- dairy cows
- soil nutrient balance
- nutrient management
- dairy farm management
- agricultural runoff
- pollution control
- simulation models
- costs and returns
- production costs
- fertilizer application
- stocking rate
- nitrogen
- phosphorus
- application rates
- Texas
- grazing
- stocking density
- manure
- nutrient losses
- nitrogen
- phosphorus
- economics
- Library Collection RecordTimber milkvetch (TMV, Astragalus miser Dougl. ex Hook var. serotinus) is widely distributed on rangelands in the southern interior of British Columbia, Canada. It synthesizes large quantities of…Publication Date 2003-05-01
- symptoms
- metabolic detoxification
- glycosides
- lactation number
- protein concentrates
- disease incidence
- disease severity
- acute course
- chronic diseases
- rumen bacteria
- animal age
- Astragalus miser
- miserotoxin
- rumen fluids
- poisoning
- British Columbia
- phytotoxins
- heifers
- beef cows
- feed supplements
- protein supplements
- grazing
- poisonous plants
- poisonous plants
- Astragalus miser var. serotinus
- detoxification
- protein supplements
- Library Collection RecordThe development of successful regional or national invasive weed control programs is often hampered by the way the problem is approached. Typically weed control programs are developed and evaluated…Publication Date 2003-01-01
- Aphthona
- Aphthona nigriscutis
- Aphthona lacertosa
- perennial weeds
- teamwork
- biological control agents
- USDA
- integrated pest management
- economic impact
- biological control
- Euphorbia esula
- ranching
- cost-benefit analysis
- invasion
- herbicides
- weed control
- South Dakota
- chemical control
- Wyoming
- sheep
- range management
- botanical composition
- Montana
- grazing
- North Dakota
- biological control
- Aphthona
- Weeds
- invasive species
- success
- integrated pest management
- Library Collection RecordFood habits of plains vizcacha (Lagostomus maximus), greater rhea (Rhea americana) and cattle (Bos taurus) in the Parana? River Delta, Argentina, were studied over 2 years using microhistological…Publication Date 2003-01-01
- Rhea
- Prosopis nigra
- Rhea americana
- ecological competition
- Lagostomus maximus
- vertebrate pests
- forage legumes
- wetlands
- feces composition
- forbs
- diet
- shrubs
- cattle
- seasonal variation
- Argentina
- botanical composition
- pasture plants
- grazing
- grasses
- diet composition
- herbivory
- Lagostomus maximus
- Paraná River Delta
- Rhea americana
- Library Collection RecordThe value of public land forage has been of key interest since grazing fees were first established on federal lands. Additionally, knowing the value of rangeland forage is important for assessing the…Publication Date 2002-09-01
- grazing permits
- quality of life
- leasing
- land values
- estimation
- rangelands
- United States
- grazing
- forage
- forage values
- grazing fees
- grazing leases
- hedonic models
- contingent valuation
- public lands grazing
- Library Collection RecordWater is an important nutrient for livestock production and is often provided on rangelands directly from ponds or dugouts. Cattle may defecate and urinate into the water thereby adding nutrients and…Publication Date 2002-09-01
- microbial contamination
- protozoal infections
- nematode infections
- Giardia
- Cryptosporidium
- Trichostrongylus
- Nematodirus
- algae and seaweeds
- ponds
- salinity
- British Columbia
- liveweight gain
- calves
- palatability
- Alberta
- cattle manure
- water supply
- water troughs
- stocking rate
- beef cows
- feedlots
- steers
- prairies
- water quality
- grazing
- beef cattle
- ponds
- dugouts
- weight gain
- water intake
- Library Collection RecordIntegrating use of seedings of perennial cool-season grasses with native range is used to increase available forage and for maintaining a high plane of nutrition for grazing livestock. Our goal was…Publication Date 2002-09-01
- Elytrigia intermedia subsp. intermedia
- protein content
- liveweight gain
- Agropyron cristatum
- cultivars
- seedlings
- crude protein
- Pascopyrum smithii
- precipitation
- in vitro digestibility
- biomass
- seasonal variation
- Montana
- plant competition
- grazing
- beef cattle
- Agropyron spp. Pascopyron smithii
- Elytrigia intermedia
- Hycrest
- Luna
- Rosana
- crude protein
- digestibility
- standing crop
- Library Collection RecordA grazing system which allows cattle to select a season-long diet more nearly meeting their nutrient requirements should facilitate optimal weight gains. A study was conducted near Mandan, N. D.…Publication Date 2002-09-01
- native ranges
- Bromus inermis
- Agropyron desertorum
- protein content
- liveweight gain
- fiber content
- chemical composition
- pastures
- Pascopyrum smithii
- in vitro digestibility
- botanical composition
- grazing
- beef cattle
- feeding preferences
- North Dakota
- animal behavior
- crested wheatgrass
- western wheatgrass
- smooth bromegrass
- Library Collection RecordThe competitiveness of plants within a community is dictated to some extent by their association with microorganisms in the soil. That association is affected by root exudates and possibly by their…Publication Date 2002-07-01
- Phleum pratense
- Koeleria macrantha
- carboxylic acids
- decreaser species
- increaser species
- Hesperostipa comata
- Psathyrostachys juncea
- root exudates
- Festuca campestris
- invasion
- Agropyron cristatum
- seedlings
- Pascopyrum smithii
- Bouteloua gracilis
- plant competition
- invasive species
- grazing
- grasses
- organic acids
- native grasses
- introduced grasses
- soil quality
- soil chemical properties
- Library Collection RecordImproper livestock grazing practices in western U.S. riparian areas may reduce the nutrient and pollutant removal function of riparian communities, resulting in degradation of surface water quality.…Publication Date 2002-07-01
- filter strips
- stem density
- sediment deposition
- particle size
- mowing
- riparian grasslands
- overland flow
- surface roughness
- sediments
- water erosion
- ground cover
- rainfall simulators
- plant density
- plant litter
- grazing
- trampling
- Colorado
- beef cattle
- Vegetation filter strip
- stem density
- rainfall simulation
- NPS pollution
- grazing
- trampling
- Library Collection RecordThe Walker Basin Allotment grazing system in central Arizona is designed to allocate resource use under elk (Cervus elaphus L.) and cattle (Bos taurus L.) grazing. The grazing system was designed to…Publication Date 2002-07-01
- feeding habits
- stubble
- topography
- woodland grasslands
- rotational grazing
- Pascopyrum smithii
- Cervus elaphus canadensis
- wildlife management
- canopy
- grazing
- Arizona
- beef cattle
- plant height
- Arizona
- deferred grazing
- paired-plot
- rest rotation
- stubble height
- western wheatgrass
- Library Collection RecordPlains larkspur (Delphinium geyeri Greene) is a major cause of cattle deaths in the northern Great Plains of Wyoming and Colorado. We examined the amount and timing of larkspur ingestion by grazing…Publication Date 2002-07-01
- delphinium geyeri
- weather
- mineral content
- protein content
- fiber content
- voluntary intake
- selective grazing
- Wyoming
- phenology
- grazing
- grasses
- beef cattle
- chemical constituents of plants
- poisonous plants
- maturity stage
- diterpenoid alkaloids
- toxic plants
- diet selection
- cattle grazing
- methyllycaconitine
- alkaloids
- Library Collection RecordEarly weaning of calves can improve reproduction of beef cows, and would be of no detriment to calf growth if the diet is adequate. Digestible energy intake could be limiting, however, when calves…Publication Date 2002-07-01
- early weaning
- concentrates
- Medicago sativa
- alfalfa
- alfalfa hay
- calf feeding
- body condition
- liveweight gain
- calves
- body weight
- pastures
- beef cows
- hay
- Argentina
- grazing
- Calf growth
- calf diet
- calf supplementation
- beef cattle
- Library Collection RecordIn recent years livestock death losses from poisonous plants in the western United States have averaged about 2-3% annually. A review of 36 grazing studies in North America shows poisonous plant…Publication Date 2002-05-01
- Oxytropis
- deserts
- avoidance conditioning
- Oxytropis sericea
- controlled grazing
- poisonous weeds
- woodland grasslands
- Western United States
- grasslands
- continuous grazing
- stocking rate
- range management
- livestock
- Delphinium
- cattle
- sheep
- goats
- grazing
- poisonous plants
- economics
- Library Collection RecordMultiple generations of rhizome-connected tillers stabilize soils and produce measurable amounts of herbage on sandy rangeland throughout the world. However, little is known about the dynamics of…Publication Date 2002-03-01
- rhizomes
- buds
- Calamovilfa longifolia
- vegetative propagation
- shoots
- length
- Nebraska
- weight
- tillering
- seasonal variation
- grazing
- Calamovilfa longifolia
- warm-season grass
- clonal growth
- reproduction threshold
- tiller dynamics
- Library Collection RecordComputer simulation was used to determine the effects of wild elk (Cervus elaphus) on available forage, cattle herd size, and ranch gross margin in southwestern Montana beef cow-calf production…Publication Date 2002-03-01
- leasing
- livestock numbers
- interspecific competition
- simulation models
- ranching
- habitats
- hunting
- production costs
- stocking rate
- Cervus elaphus canadensis
- wildlife management
- range management
- Montana
- grazing
- beef cattle
- forage
- range economics
- Library Collection RecordThe influence of night grazing on feeding behavior, nutrition and performance of cattle was studied. Twenty-four steers weighing 367 kg (SD = 76) grazed either from 0900 to 1900 (day grazers), 2100…Publication Date 2002-03-01
- Niger
- rumination
- physical activity
- weight losses
- fiber content
- dry seasons
- diet
- steers
- digestibility
- cattle
- nitrogen content
- seasonal variation
- grazing
- feed intake
- cattle
- forage intake
- night grazing
- Sahel
- Library Collection RecordIn August 1994, wildfire burned 6,500 ha of native Dry Mixed Prairie in southeastern Alberta. The following year, a study was initiated to monitor the recovery of major plant communities. Burning was…Publication Date 2002-03-01
- Koeleria macrantha
- Elymus lanceolatus
- Hesperostipa comata
- wildfire management
- Agropyron
- ground cover
- fires
- fire effects
- Alberta
- forbs
- Pascopyrum smithii
- Bouteloua gracilis
- precipitation
- biomass production
- grazing intensity
- prairies
- drought
- range management
- plant litter
- botanical composition
- canopy
- grazing
- grasses
- beef cattle
- Stipa
- composition
- forage
- litter
- preference
- production
- topography
- Library Collection RecordAn understanding of the impacts of grazing during and following drought on rangeland ecosystems is critical for developing effective drought management strategies. This study was designed to examine…Publication Date 2002-03-01
- pascopyron smithii
- primary productivity
- drought tolerance
- stocking rate
- Pascopyrum smithii
- Bouteloua gracilis
- tillering
- growth rate
- leaf water potential
- xylem water potential
- drought injury
- tillers
- biomass production
- Montana
- grazing
- soil water
- water stress
- Bouteloua gracilis
- Pascopyrum smithii
- production
- rainout shelter
- rest
- water potential