Rangeland Ecology & Management
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- 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
- Library Collection RecordState and transition (ST) descriptions of rangeland vegetation dynamics provide information on current perceptions of explicit causes of change in dominant vegetation. Structural attributes of ST…Publication Date 1997-07-01
- simulation models
- vegetation
- range management
- rangelands
- Library Collection RecordThe abundance of woody plants on grasslands and savannas often is controlled by the availability of water and its location in soil. Water availability to plants is limited by precipitation, but the…Publication Date 1997-05-01
- prediction
- plant ecology
- water availability
- soil water balance
- carbon dioxide
- atmosphere
- greenhouse effect
- stomata
- C4 grasses
- rain
- transpiration
- shrubs
- rangelands
- literature reviews
- grasses
- plant height
- Library Collection RecordA new typology shows that the notion of rangeland carrying capacity has considerable ambiguity even under conditions of high environmental certainty. When these environmental conditions are highly…Publication Date 1997-09-01
- equilibrium
- decision analysis
- knowledge
- carrying capacity
- estimation
- stocking rate
- range management
- rangelands
- Library Collection RecordSquirreltail's [Elymus elymoides (Raf.) Swezey + Sitanion hystrix (Nutt.) J.G. Smith] ready germination, rapid reproductive maturity, capacity for cool-temperature growth, self-pollinated mating…Publication Date 1998-05-01
- Elymus elymoides
- seral stages
- reclamation
- ecological succession
- fires
- fire effects
- rangelands
- Library Collection RecordActinorhizal plants are a diverse group of trees and shrubs that have the ability to form a dinitrogen-fixing symbiosis with Frankia bacteria. Actinorhizal plants are found throughout the world and…Publication Date 1997-01-01
- nitrogen fixation
- nodulation
- Frankia
- root nodules
- nitrogen fixing trees
- leaves
- mycorrhizal fungi
- symbiosis
- stems
- lignin
- Western United States
- browse plants
- ecological succession
- fiber content
- crude protein
- shrubs
- in vitro digestibility
- rangelands
- literature reviews
- Library Collection RecordActinorhizal plants are a diverse group of trees and shrubs that have the ability to form a dinitrogen-fixing symbiosis with Frankia bacteria. Actinorhizal plants are found throughout the world and…Publication Date 1997-01-01
- nitrogen fixation
- nodulation
- Frankia
- root nodules
- nitrogen fixing trees
- leaves
- mycorrhizal fungi
- symbiosis
- stems
- lignin
- Western United States
- browse plants
- ecological succession
- fiber content
- crude protein
- shrubs
- in vitro digestibility
- rangelands
- literature reviews
- 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 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 RecordFourteen treatments of nitrogen (N) and phosphorus (P) fertilizers were applied in an overgrazed eight rangeland in northern Mexico, during 1990 and 1991. Eight treatments were applied using ammonium…Publication Date 1996-07-01
- ammonium nitrate
- urea
- phosphorus fertilizers
- cost-benefit analysis
- protein content
- Mexico
- ammonium sulfate
- yields
- rain
- water-use efficiency
- digestibility
- crude protein
- application rates
- rangelands
- forage
- Library Collection RecordEstablishment of blue grama (Bouteloua gracilis [H.B.K.] Lag ex. Steud.) depends on adequate precipitation at critical times and on reduced competition from associated vegetation. These conditions…Publication Date 1995-11-01
- clones
- basal area
- vegetative propagation
- seedlings
- Bouteloua gracilis
- Wyoming
- biomass
- rangelands
- chemical constituents of plants
- Library Collection RecordRepeat photography is a valuable tool for demonstrating the effects over time of climate, management and other variables on range and forest lands. This bibliography lists 175 publications using…Publication Date 1996-01-01
- bibliographies
- photography
- forests
- Western United States
- vegetation types
- ecological succession
- rangelands
- Library Collection RecordThis paper sets out that the dynamics of the Sahelian rangeland vegetation can be interpreted as a cusp catastrophe and that this interpretation offers a promising basis for the description and…Publication Date 1996-11-01
- Sahel
- ecological balance
- annuals
- semiarid grasslands
- mathematical models
- perennials
- rain
- grazing intensity
- plant communities
- rangelands
- forage
- Library Collection RecordThere is a dearth of knowledge on the selection and utilization of Columbia milkvetch (Astragalus miser Dougl. ex Hook. var. serotinus) by grazing livestock on rangelands in British Columbia. Four…Publication Date 1996-05-01
- Astragalus miser
- miserotoxin
- poisoning
- British Columbia
- highlands
- woodland grasslands
- grasslands
- calves
- Pinus contorta
- palatability
- fiber content
- rain
- selective grazing
- forbs
- beef cows
- crude protein
- rangelands
- grasses
- Library Collection RecordThree annual applications of a factorial combination of N (0, 40, 80, 120 kg ha-1), P (0, 25 kg ha-1) and K (0, 100 kg ha-1) were applied to Florida flatwoods range where 45 plant species were…Publication Date 1996-11-01
- potassium fertilizers
- panicum oligosanthes
- Solidago
- Eupatorium
- solidage fistulosa
- euthamia minor
- stand density
- phosphorus fertilizers
- Schizachyrium scoparium
- species diversity
- ecological succession
- rain
- nitrogen fertilizers
- Florida
- forbs
- plant communities
- application rates
- biomass
- rangelands
- Library Collection RecordSuccessful managers of federal rangelands in the next century will have to implement politically supportable policies that address both forage and non-forage values. To do so will require an…Publication Date 1996-01-01
- public opinion
- public domain
- surveys
- multiple land use
- Oregon
- wildlife management
- range management
- rangelands
- United States
- Library Collection RecordIn much of the west, seasonal rangeland provides important foraging opportunities for wild and domestic ungulates during times when forage is often limited. We studied the use of foraging areas by…Publication Date 1996-01-01
- terrain
- Cervus elaphus
- Oregon
- plant communities
- Odocoileus hemionus
- botanical composition
- rangelands
- beef cattle
- altitude
- Library Collection RecordSustaining rangeland ecosystems is as much a social process as an ecological one. It requires application of many of the same principles as those used in planning for wildlife reserves, but the…Publication Date 1996-03-01
- zoning
- dairy farming
- open spaces
- conservation easements
- conservation
- ranching
- sustainability
- California
- rangelands
- Library Collection RecordThe USDA-Water Erosion Prediction Project (WEPP) is a new technology based on the fundamentals of hydrology, soil physics, plant science, hydraulics, and erosion mechanics. WEPP hydrology includes…Publication Date 1995-11-01
- green and ampt equation
- soil physics
- water erosion
- Prosopis glandulosa
- mathematical models
- ground vegetation
- prediction
- computer simulation
- watershed hydrology
- runoff
- soil water content
- Texas
- rangelands
- canopy
- Library Collection RecordMicrowave radar is a potentially useful tool for monitoring the condition of the rangeland. A study was conducted in a mixed prairie community at the Agriculture Canada Research Substation at Onefour…Publication Date 1994-09-01
- radar
- radar backscatter
- oversowing
- aerial photography
- Psathyrostachys juncea
- remote sensing
- Agropyron cristatum
- Alberta
- land restoration
- range management
- botanical composition
- rangelands
- canopy
- grazing
- Library Collection RecordAnnual grasslands in the Pacific Northwest are being invaded by Eurasian weeds, such as yellow starthistle (Centaurea solstitialis L.). Plant-plant interactions influence community dynamics and plant…Publication Date 1994-11-01
- plant weight
- root length
- intraspecific competition
- interspecific competition
- Centaurea solstitialis
- seedlings
- Bromus tectorum
- length
- weight
- introduced species
- plant competition
- rangelands
- Library Collection RecordCompetitive bidding is an acceptable way to determine an efficient price to both buyer and seller. The quasi-competitive bid structure used to price federal forage and lessor-provided services on the…Publication Date 1994-03-01
- rent
- valuation
- production costs
- rangelands
- grazing
- New Mexico
- forage
- Library Collection RecordA defoliation study was conducted on a fair condition, clayey range site that is potentially dominated by northern wheatgrass (Agropyron dasystachyum (Hook.) Scribn.) in south-central Saskatchewan.…Publication Date 1994-07-01
- Elymus lanceolatus
- leaves
- roots
- Saskatchewan
- biomass production
- rangelands
- defoliation
- Library Collection RecordA Stipa-bouteloua community, cultivated in the autumn of 1928 and abandoned in the spring of 1932, reverted to a community dominated by needle-and-thread (Stipa comata Trin. and Rupr.). An exclosure…Publication Date 1994-01-01
- abandoned land
- soil organic matter
- Hesperostipa comata
- soil properties
- Alberta
- Bouteloua gracilis
- prairies
- range management
- botanical composition
- rangelands
- Library Collection RecordEfficient sampling of standing crop is necessary to avoid unreasonable lays of time in the field. The objective of this study was to determine efficiency of different size and shape quadrats for…Publication Date 1994-01-01
- bouteloua hirsuta
- clipping
- variance
- Schizachyrium scoparium
- Calamovilfa longifolia
- Andropogon hallii
- Nebraska
- sampling
- rangelands
- Library Collection RecordConcern for nonpoint source pollution from rangelands has increased the need to monitor and predict amounts of soil erosion that may enter streams from adjacent rangelands. This study was undertaken…Publication Date 1994-01-01
- soil physical properties
- sediments
- soil erosion
- Universal Soil Loss Equation
- Revised Universal Soil Loss Equation
- water quality
- rangelands
- Library Collection RecordA 2 year study in south central North Dakota determined the responses of (1) litter and root decomposition and nitrogen (N) release, and (2) soil N mineralization to grazing intensity. The treatments…Publication Date 1994-11-01
- nitrogen retention
- degradation
- rangeland soils
- biogeochemical cycles
- grazing experiments
- grazing intensity
- plant litter
- rangelands
- grasses
- North Dakota
- Library Collection RecordLimited research has been directed towards characterizing the phenotypic and genotypic variability of different traits in North American plant species. This study was conducted to estimate the degree…Publication Date 1994-01-01
- genetic variance
- agronomic traits
- heritability
- Agropyron
- plant morphology
- South Dakota
- rangelands
- North Dakota
- Library Collection RecordRange condition score or classification does not tell us, in a general sense, much of what managers and the public want to know about rangelands. Range condition is not a reliable indicator, across…Publication Date 1995-05-01
- rangeland soils
- terminology
- soil erosion
- ecological succession
- sustainability
- rangelands
- Library Collection RecordRangelands with histories of overgrazing are frequently depauperate of native grasses. Occasionally, remnant native grasses are found surviving in these areas. We hypothesized that these survivors…Publication Date 1994-01-01
- patterns
- Festuca idahoensis
- adaptation
- growth
- Oregon
- range management
- rangelands
- defoliation
- grazing