Rangeland Ecology & Management
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- Library Collection RecordThere are several generalizations or assumptions concerning rangeland hydrology and erosion relationships found in the literature and in the management arena. These generalizations have found their…Publication Date 2002-11-01
- sheet erosion
- mixed-grass prairies
- tallgrass prairie
- rangeland soils
- Rocky Mountain region
- hydrology
- ground cover
- semiarid grasslands
- Artemisia
- mathematical models
- Carex
- brush control
- steppe soils
- range condition
- equations
- shortgrass prairie
- runoff
- rainfall simulators
- forbs
- soil water content
- plant communities
- California
- prairies
- biomass
- sediment yield
- plant litter
- botanical composition
- rangelands
- canopy
- infiltration
- grasses
- prairie soils
- rangeland hydrology
- infiltration
- erosion
- hydrologic modeling
- Library Collection RecordUndisturbed plant communities dominated by shrubs or trees are often left isolated within landscapes otherwise devoid of woody vegetation following large-scale disturbances such as wildfires. We…Publication Date 2002-11-01
- biogeography
- Phasianidae
- Centrocercus urophasianus
- biodiversity
- wildfire management
- arid grasslands
- habitats
- Purshia tridentata
- prediction
- species diversity
- ecological succession
- fires
- fire effects
- Artemisia tridentata
- plant communities
- California
- land restoration
- range management
- Nevada
- rangelands
- Artemisia tridentata Nutt.
- biological diversity
- disturbance
- Island Biogeography Theory
- succession
- terrestial habitat islands
- Library Collection RecordWe compared the herbage standing crop on 31 farms along a rainfall gradient in Namibia (southwestern Africa) in 1997 with the results attained for the same gradient by Walter (1939). We found that…Publication Date 2000-03-01
- Namibia
- environmental degradation
- desertification
- grasslands
- rain
- stocking rate
- biomass production
- overgrazing
- forage
- Africa
- rangelands
- historical records
- grazing
- rainfall
- Library Collection RecordEconomic impacts from federal grazing policy frequently figure in public debate about federal land in the American West. The spatial and economic level of aggregation at which impacts are estimated…Publication Date 2000-03-01
- rural economy
- income
- primary sector
- sectoral analysis
- grazing tenancy
- public domain
- economic impact
- stocking rate
- Idaho
- spatial distribution
- rangelands
- public lands
- grazing
- input/output models
- Library Collection RecordGrowing yearling steers on summer rangelands as part of a cow-calf-yearling operation would allow producers to maximize forage utilization, and selling yearling steers when forage was in short supply…Publication Date 2000-03-01
- topography
- liveweight gain
- ambient temperature
- rain
- phosphorus
- soybean meal
- dietary mineral supplements
- metabolizable energy
- steers
- barley
- in vitro digestibility
- protein supplements
- rangelands
- grazing
- beef cattle
- dry matter
- feed intake
- North Dakota
- Dry matter intake
- forage crude protein
- forage phosphorus
- ground barley
- Library Collection RecordTwenty-six, 0.04 ha macroplots were sampled on 9 range sites in southwestern Montana to compare successional scores and condition classifications of range condition analysis and United States Forest…Publication Date 2000-03-01
- seral stages
- ecological balance
- species diversity
- range condition
- ecological succession
- equations
- plant communities
- biomass
- Montana
- rangelands
- range condition
- seral stages
- plant communities
- succession
- Library Collection RecordWe surveyed the effectiveness of livestock guard dogs for reduc-ing predation on domestic sheep in Colorado during 1993. The number of producers using dogs increased from about 25 in 1986 to >159…Publication Date 2000-05-01
- Puma concolor
- livestock numbers
- coyotes
- lambs
- ewes
- predation
- guard dogs
- sheep dogs
- mortality
- Ursus americanus
- pastures
- rangelands
- Colorado
- Akbash
- black bears
- Canis latrans
- coyote
- dog
- Felis concolor
- Great Pyrenees
- Komondor
- mountain lion
- sheep
- Ursus americanus
- Library Collection RecordCryptosporidium parvumis a fecal borne protozoan parasite that can be carried by and cause gastrointestinal illness in humans, cattle, and wildlife. The illness, cryptosporidiosis, can be fatal to…Publication Date 2000-05-01
- movement
- Cryptosporidium parvum
- oocysts
- zoonoses
- water flow
- overland flow
- rain
- cattle manure
- slope
- California
- rangelands
- pathogens
- water quality
- fate and transport
- buffer strips
- Library Collection RecordFlea beetles (Aphthona spp.) were introduced into leafy spurge (Euphorbia esula L.)-infested rangeland in east-central North Dakota. The study objectives were to evaluate the effects of the…Publication Date 2000-05-01
- Aphthona czwalinae
- Aphthona
- Aphthona nigriscutis
- Aphthona lacertosa
- biological control
- ground cover
- Euphorbia esula
- range condition
- plant density
- biomass
- rangelands
- grasses
- North Dakota
- biological control
- Leafy spurge
- insects
- flea beetles
- range improvement
- Library Collection RecordCalifornia ranchers in urban Alameda and Contra Costa Counties, and in rural Tehama County, were surveyed to examine effects of increasing development, land use change, and attrition of the ranching…Publication Date 2000-07-01
- ranching
- land use
- land use planning
- urban areas
- rural areas
- farmers' attitudes
- beef production
- California
- rangelands
- land use change
- land trusts
- rangeland conversion
- ranch values
- Library Collection RecordRunoff hydrographs from 3 separate rainfall simulation runs at 11 different shortgrass prairie sites were evaluated to determine the hydrologic similarity within a single ecosystem at widely…Publication Date 2000-07-01
- loam soils
- clay soils
- steppe soils
- range condition
- rain
- South Dakota
- runoff
- sandy loam soils
- rainfall simulators
- Texas
- prairies
- biomass
- plant litter
- rangelands
- canopy
- New Mexico
- Colorado
- runoff
- rainfall simulation
- hydrograph
- time-to-peak
- Library Collection RecordLow soil nutrient status may be the major limiting factor to forage production in rangelands of the Mendoza plains 4 years out of 10. We studied vegetation responses to annual applications of N and P…Publication Date 2000-07-01
- phosphorus fertilizers
- economic analysis
- production costs
- soil fertility
- rain
- nitrogen fertilizers
- use efficiency
- biomass production
- application rates
- Argentina
- rangelands
- forage
- crude protein
- season rain-use efficiency
- nutrient use efficiency
- range fertilization economics
- Library Collection RecordWe evaluated the influence of supplemental barley and activated charcoal on the intake of sagebrush by lambs in individual pens. In 3 experiments, lambs were fed sagebrush (harvested and chopped to 2…Publication Date 2000-07-01
- alfalfa pellets
- artemisia tridentata subsp. vaseyana
- activated carbon
- chop length
- artemisia tridentata subsp. tridentata
- provenance
- lambs
- selective grazing
- energy intake
- terpenoids
- barley
- feed supplements
- Artemisia tridentata
- feed intake
- feeding preferences
- zero grazing
- sheep
- macronutrients
- terpenoids
- rangelands
- Library Collection RecordThis study examined the effects of late growing-season (September) wildfire on the subsequent production and species composition of upland Nebraska Sandhills prairie vegetation. Three paired-plots (…Publication Date 2000-07-01
- Cyperaceae
- Schizachyrium scoparium
- soil temperature
- fires
- fire effects
- Nebraska
- forbs
- plant communities
- biomass
- range management
- botanical composition
- rangelands
- grasses
- burning
- species composition
- herbage standing crop
- soil temperature
- Library Collection RecordThe decreased carrying capacity of Argentinian Flooding Pampa rangelands through the reduction of density of C3 grasses may be partially attributed to continuous stocking. The objective of this study…Publication Date 2000-09-01
- pampas
- C4 grasses
- C3 grasses
- Lolium multiflorum
- sown grasslands
- continuous grazing
- rotational grazing
- range management
- Argentina
- rangelands
- grasses
- beef cattle
- winter forage production
- temperate-humid rangeland
- grazing systems
- Lolium multiflorum
- Library Collection RecordEmerging hydrology-related issues in California grasslands have directed attention towards the need to understand subsurface water flow within a complex, dynamic system. Tensiometers and neutron…Publication Date 2000-09-01
- wetting front
- semiarid grassland soils
- subsurface flow
- soil profiles
- water flow
- evaporation
- water balance
- soil water potential
- watersheds
- rain
- watershed hydrology
- California
- rangelands
- soil water
- California rangelands
- subsurface flow
- water budget
- Library Collection RecordWe describe a method of close-range vertical photography and digital image analysis for measuring changes in total projective cover in perennial tussock grasslands of semi-arid Australia. Repeated…Publication Date 2000-11-01
- grassland condition
- Themeda triandra
- photography
- Western Australia
- ground photogrammetry
- ground cover
- image analysis
- semiarid grasslands
- accuracy
- estimation
- fires
- fire effects
- biomass
- bunchgrass
- northwest Australia
- permanent quadrats
- prescribed burning
- rangelands
- Themeda triandra Forsskal
- Library Collection RecordPresence of 2 large herbivores in the same rangeland makes assessment of proper stocking rates and management practices rather complex. This study evaluated composition and overlap of red deer and…Publication Date 2000-11-01
- mixed grazing
- Prosopis
- Cervus elaphus
- stocking rate
- species differences
- diet
- seasonal variation
- Argentina
- botanical composition
- rangelands
- beef cattle
- browsing
- intermediate feeders
- grass users
- rangeland use
- range diets
- multi-species programs
- Library Collection RecordSoil water studies for California rangelands have focussed on near-surface hydrologic processes, limiting our understanding of spatial-temporal dynamics of the water regime below the root zone. Soil…Publication Date 2001-01-01
- particle size analysis
- soil profiles
- trees
- grassland soils
- soil depth
- evapotranspiration
- vegetation types
- rain
- watershed hydrology
- slope
- aspect
- soil water content
- California
- seasonal variation
- rangelands
- grasses
- soil texture
- altitude
- California rangelands
- subsurface hydrology
- Library Collection RecordWoody cover, when expressed at the scale of the 207 km2 Cusenbary Draw basin, remained unchanged (approximately 23%) from 1955 to 1990. When expressed at the scale of range sites, woody cover…Publication Date 2001-03-01
- soil depth
- water yield
- water balance
- multiple use
- landscapes
- watershed management
- evapotranspiration
- Prosopis glandulosa
- brush control
- runoff
- woody plants
- precipitation
- spatial distribution
- Texas
- range management
- botanical composition
- Juniperus
- rangelands
- brush management
- evapotranspiration
- GIS and remote sensing
- hydrologic modeling
- semiarid rangelands
- Library Collection RecordIn Utah during the early 1990s it was theorized that substantive change was under way in the management of private grazing land. Change was thought to be spearheaded by grazing permittees who feared…Publication Date 2001-03-01
- part-time farming
- farm indebtedness
- farm surveys
- grazing tenancy
- public domain
- irrigated pastures
- risk
- investment
- land ownership
- ranching
- farmers' attitudes
- age
- range management
- rangelands
- Utah
- ranching
- hobby ranching
- land use
- technology transfer
- sustainable agriculture
- Library Collection RecordRangeland plant communities of the Intermountain West differ in their ecology and management requirements. Successful management of extensive areas at plant community-level resolution first requires…Publication Date 2001-03-01
- satellites
- Pinopsida
- resolution
- thematic mapper
- systeme probatoire d'observations de la terre
- irrigated conditions
- mapping
- Landsat
- artemisia arbuscula
- Purshia tridentata
- remote sensing
- satellite imagery
- multispectral imagery
- vegetation types
- Populus tremuloides
- Idaho
- Artemisia tridentata
- plant communities
- rangelands
- Cover type
- maximum likelihood
- multispectral
- rangelands
- remote sensing
- satellite imagery
- supervised classification|\vegetation
- Library Collection RecordTraditional theories of plant succession leading to a single equilibrium community are being re-evaluated. Alternative theories involving multiple steady states, and state-and-transition processes…Publication Date 2001-05-01
- groundwater
- ecosystems
- soil depth
- arid zones
- ground cover
- water table
- plant ecology
- ecological succession
- riparian buffers
- soil water content
- plant communities
- semiarid zones
- plant litter
- botanical composition
- rangelands
- riparian plant communities
- groundwater
- soil moisture
- state-and-transition models
- Library Collection RecordDrought and herbivory frequently influence North American rangelands. While these influences may temporarily reduce vegetative cover, their mutual influence on the available seedbanks which might…Publication Date 2001-05-01
- rooting depth
- plant development
- soil depth
- seed banks
- roots
- seedling emergence
- plant communities
- seed germination
- drought
- Montana
- rangelands
- browsing
- grazing
- water stress
- minirhizotron
- northern mixed-grass prairie
- seed banks
- Library Collection RecordThe objectives of this Colorado study were to assess primary reasons ranchers choose to stay or sell the ranch, compare the motivations for ranching between a traditional agriculturally based county…Publication Date 2001-07-01
- public domain
- geographical variation
- urban development
- urbanization
- surveys
- land ownership
- ranching
- land use
- farmers' attitudes
- issues and policy
- profitability
- rangelands
- Colorado
- rangeland policy
- regulation
- survey
- public lands
- urban development
- land use conversion
- Library Collection RecordLeafy spurge (Euphorbia esula L.), a widely established exotic, noxious, perennial weed, is a major threat to rangeland and wildland in the Upper Great Plains. A deterministic, bioeconomic model,…Publication Date 2001-07-01
- fencing
- simulation models
- costs and returns
- Euphorbia esula
- economic analysis
- weed control
- profitability
- sheep
- rangelands
- grazing
- grasses
- feed intake
- Euphorbia esula L.
- grazing
- economics
- Library Collection RecordStrategic supplement placement has been shown to be an effective tool to lure cattle to underutilized rangeland. The goal of this study was to determine where cattle grazed when supplement was placed…Publication Date 2001-07-01
- molasses
- global positioning systems
- sloping land
- spatial variation
- water availability
- pastures
- feed supplements
- spatial distribution
- cattle
- Montana
- rangelands
- grazing
- grasses
- distribution
- grazing
- behavior
- utilization
- Library Collection RecordLeafy spurge (Euphorbia esula L.) reduces northern Great Plains rangeland carrying capacity. Treatment strategies were evaluated that suppressed leafy spurge and facilitated establishment of mixtures…Publication Date 2001-07-01
- dry matter accumulation
- legumes
- Infestation
- glyphosate
- carrying capacity
- Euphorbia esula
- species diversity
- weed control
- Nebraska
- land restoration
- plant density
- establishment
- prairies
- botanical composition
- rangelands
- grasses
- prescribed fire
- grassland restoration
- imazapic
- glyphosate
- warm-season grasses
- cool-season grasses
- legumes
- invasive plants
- Library Collection RecordAlkaloids constitute the largest class of plant secondary compounds, occurring in 20 to 30% of perennial herbaceous species in North America. Alkaloid-containing plants are of interest, first because…Publication Date 2001-07-01
- binding
- morbidity
- physiology
- metabolism
- excretion
- antinutritional factors
- alkaloids
- toxicity
- phytotoxins
- mortality
- stocking rate
- selective grazing
- species differences
- rotational grazing
- feed supplements
- biomass production
- rumen fermentation
- rangelands
- pasture plants
- literature reviews
- chemical constituents of plants
- poisonous plants
- plant toxins
- forage quality
- diet selection
- grazing management
- Library Collection RecordThe anti-quality effects of the major groups of insects that utilize rangeland plants for food is discussed. The biology, ecology, geographical distribution and economic thresholds of grasshoppers,…Publication Date 2001-07-01
- rangelands
- insect pests
- nutritive value
- defoliation
- quality
- ecology
- Pogonomyrmex
- geographical distribution
- Orthoptera
- pasture plants
- literature reviews
- pest control
- biology
- pest management
- Lepidoptera
- Miridae
- grasshoppers
- hemilenca oliviae
- grasshoppers
- harvester ants
- range caterpillar
- big eyed bugs
- rangeland insects
- 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 RecordWe present a method for computerizing the transition rules of a state-and-transition model and then linking this model to a geographic information system. The resulting simulation characterizes…Publication Date 1999-01-01
- change
- expert systems
- ground cover
- woodland grasslands
- Quercus douglasii
- Pinus sabiniana
- Mediterranean climate
- grazing intensity
- shrubs
- California
- introduced species
- rangelands
- canopy
- grasses
- Library Collection RecordCharacterization of relationships between grazing and vegetation responses is difficult. Rapid and accurate measurement of pasture canopy characteristics would help clarify these relationships if…Publication Date 1999-07-01
- leaf angle
- rain
- leaf area index
- stocking rate
- Nebraska
- grazing intensity
- cattle
- rangelands
- canopy
- grazing
- grasses
- Library Collection RecordThis research addresses the hypothesis that grazing intensity during and following drought can dramatically alter community level, post-drought recovery patterns. Research was conducted during the…Publication Date 1999-09-01
- warm-season grasses
- cool-season grasses
- timing
- annuals
- perennials
- precipitation
- biomass production
- grazing intensity
- prairies
- drought
- Montana
- rangelands
- grasses
- forage
- soil water
- 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 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 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 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 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 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 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 RecordResults from 6 years of seeding trials in the Chihuahuan Desert indicated that establishment of introduced and native grass species responded directly to soil moisture at the 1.22 cm (0.5 in) depth,…Publication Date 1997-03-01
- forage production
- net present value
- valuation
- microclimate
- sowing
- seedbed preparation
- risk
- soil temperature
- economic analysis
- production costs
- arid lands
- stand establishment
- crop production
- Bouteloua gracilis
- Texas
- range management
- Eragrostis lehmanniana
- introduced species
- rangelands
- soil water
- Library Collection RecordEffective hydraulic conductivity (Ke) is an important parameter for the prediction of infiltration and runoff volume from storms. The Water Erosion Prediction Project (WEPP) model, which uses a…Publication Date 1997-05-01
- hydraulic conductivity
- lopes
- algorithms
- green and ampt equation
- water erosion
- mathematical models
- soil types
- prediction
- species diversity
- runoff
- slopes
- plant communities
- plant litter
- rangelands
- canopy
- Library Collection RecordPrivate rangeland lease rates have been used historically as an indication of the price of public grazing lease rates. The ability of these prices to adequately reflect short-term fluctuations in the…Publication Date 1997-03-01
- leasing
- price policy
- forage value index
- grazing tenancy
- prices
- production costs
- indexes
- regression analysis
- hay
- rangelands
- beef cattle
- Library Collection RecordFeral horse habitat selection patterns and forage attributes on available habitats were studied on public rangelands of southcentral Wyoming. Environmental assessments preceding roundup of excess…Publication Date 1997-07-01
- wild animals
- patterns
- habitat selection
- horses
- palatability
- Wyoming
- rangelands
- forage
- 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 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 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