Rangeland Ecology & Management
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- Library Collection RecordTo help local Niger government authorities and donor countries ameliorate conditions in the advent of drought, a rapid yet simple means to assess annual herbaceous production at the end of the rainy…Publication Date 1992-05-01
- Sahel
- Niger
- mathematical models
- prediction
- meteorological data
- regression analysis
- rain
- crop production
- biomass
- rangelands
- forage
- Library Collection RecordA total of 341 Utah rural land sales occurring between 1980 and 1987 were analyzed to identify and quantify the determinants of Utah rangeland and ranch prices. Two factors statistically influenced…Publication Date 1992-05-01
- valuation
- selling prices
- rural economy
- econometric models
- land values
- ranching
- prediction
- regression analysis
- rangelands
- Utah
- Library Collection RecordLow vigor of seedlings and stand failures plague many revegetation efforts in semiarid and arid rangelands. Phototoxicity, sandbur (Cenchrus incertus M.A. Curtis) competition, seedbed preparation (…Publication Date 1991-05-01
- plant residues
- Cenchrus incertus
- crop establishment
- seedbed preparation
- Eragrostis curvula
- allelopathy
- Quercus havardii
- seedlings
- nitrogen fertilizers
- vigor
- environmental factors
- Texas
- plant competition
- rangelands
- Library Collection RecordTwo experiments with steers were conducted to evaluate the influence of native forbs and shrubs on nitrogen utilization by cattle. Diets in Exp. 1 were blue grams (Bouteloua gracilis [H.B.K.]) (BG),…Publication Date 1992-03-01
- barley straw
- croton pottsii
- nitrogen retention
- Hordeum vulgare
- Sphaeralcea coccinea
- nitrogen metabolism
- Medicago sativa
- alfalfa
- alfalfa hay
- Atriplex canescens
- Croton
- hay
- steers
- cattle feeding
- Bouteloua gracilis
- shrubs
- rangelands
- nutritive value
- quality
- Cercocarpus montanus
- New Mexico
- beef cattle
- forage
- Library Collection RecordEven though the Wilderness Act of 1964 provided for continuation of livestock grazing after wilderness designation, there has been continued debate about the Forest Service's implementation of…Publication Date 1991-09-01
- land policy
- permits
- animal unit month
- coronado national forest
- Tonto National Forest
- USDA
- wilderness
- national forests
- multiple land use
- grazing intensity
- range management
- rangelands
- grazing
- Arizona
- Library Collection RecordSeed dormancy typically limits stand establishment of Indian ricegrass [Oryzopsis hymenoides (Roem. and Schult.) Ricker]. The mechanical and physiological mechanisms that contribute to dormancy must…Publication Date 1992-03-01
- embryo dormancy
- mechanical dormancy
- physiological dormancy
- dormancy
- testa
- revegetation plants
- Achnatherum hymenoides
- scarification
- seed treatments
- cooling
- stand establishment
- seed germination
- seed dormancy
- rangelands
- Library Collection RecordLine transect procedures were used to estimate density of lesser prairie-chicken (Tympanuchus pallidicinctus) in tebuthiuron-treated and untreated sand shinnery oak (Quercus havardii Rydb.)…Publication Date 1991-07-01
- tympanuchus pallidicinctus
- population ecology
- habitat destruction
- Phasianidae
- tebuthiuron
- population density
- Quercus havardii
- vegetation
- Texas
- range management
- seasonal variation
- botanical composition
- rangelands
- New Mexico
- Library Collection RecordPerennial plants collected from 5 north-central Arizona semiarid locations were assayed for tebuthiuron [N-5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl-N,N'-dimethylurea] and its metabolites…Publication Date 1991-05-01
- long term experiments
- herbicide residues
- metabolites
- Bouteloua eriopoda
- Bouteloua curtipendula
- tebuthiuron
- Poaceae
- Bouteloua gracilis
- shrubs
- semiarid zones
- application rates
- rangelands
- Arizona
- forage
- Library Collection RecordThe government must manage public rangeland in the face of alternative multiple use interests, including wildlife and domestic livestock production. The objectives of this study were to estimate a…Publication Date 1991-07-01
- linear programming
- mixed grazing
- production possibilities
- economic benefits
- production possibilities frontier
- marginal rates of substitution
- marginal returns
- animal production
- multiple land use
- cost-benefit analysis
- stocking rate
- Antilocapra americana
- biomass production
- Wyoming
- grazing intensity
- cattle
- range management
- rangelands
- forage
- Library Collection RecordFactors responsible for poor recruitment of blue oak (Quercus douglasii H. & A.) and valley oak (Q. lobata Nee) need to be determined on California hardwood rangelands so that management…Publication Date 1992-01-01
- shading
- Quercus lobata
- recruitment
- Quercus
- Quercus douglasii
- seedling emergence
- stand establishment
- seedlings
- California
- rangelands
- Library Collection RecordThis paper discusses the criteria needed for quantitative evidence of overgrazing and outlines some of the main pasture and external factors that promote overgrazing by herbivores. Overgrazing is…Publication Date 1991-09-01
- wool production
- econometric models
- animal production
- economic analysis
- stocking rate
- pastures
- sheep
- overgrazing
- cattle
- rangelands
- Library Collection RecordRange revegetation research has been dominated by empirical studies that provide some information about what works or does not work under a given set of conditions, but tell us little or nothing…Publication Date 1991-11-01
- semiarid grasslands
- ecological succession
- land restoration
- rangelands
- Library Collection RecordThe role of ungulate grazing in shaping rangeland ecosystems is well known relative to other important plant-animal interactions such as pollination, seed dispersal, granivory, and belowground…Publication Date 1991-11-01
- seed dispersal
- plant ecology
- land restoration
- rangelands
- Library Collection RecordInterest in evaluating theoretical considerations in traditional methods of determining range condition have increased recently with application of different analytical techniques. In this study, the…Publication Date 1991-07-01
- cluster analysis
- quantitative climax approach
- deserts
- land classification
- secondary succession
- spatial variation
- climax communities
- grasslands
- plant ecology
- ecological succession
- pastures
- biomass production
- botanical composition
- rangelands
- New Mexico
- forage
- Library Collection RecordDissatisfaction persists with current approaches to range condition and trend assessment. Sometimes assessed condition does not truly represent the past or the potential of range. One of the likely…Publication Date 1991-09-01
- ordination
- site factors
- classification
- plant ecology
- ecological succession
- vegetation
- environmental factors
- range management
- rangelands
- Library Collection RecordThe Water Erosion Prediction Project (WEPP) is a new water erosion prediction technology being developed by the USDA-Agricultural Research Service to replace the Universal Soil Loss Equation.…Publication Date 1991-05-01
- edaphic factors
- interception
- simulation models
- water erosion
- site factors
- soil types
- ground vegetation
- prediction
- steppes
- rain
- runoff
- prairies
- losses from soil
- rangelands
- canopy
- infiltration
- Library Collection RecordVegetation cover may afford many species of prey animals reduced risk of being detected and/or attacked by predators. In this study, feeding stations were provided for black-tailed jackrabbits (Lepus…Publication Date 1991-09-01
- predation
- Lepus californicus
- shrub cover
- risk
- foraging
- spatial variation
- herbivores
- shrubs
- rangelands
- feed intake
- Library Collection RecordThe concepts of relatively stable multiple states and thresholds or transitions between these states has received little attention in range management until recently. On North American rangelands…Publication Date 1991-09-01
- desert grasslands
- annual grasslands
- climax communities
- grasslands
- plant ecology
- ecological succession
- natural grasslands
- climatic zones
- range management
- rangelands
- United States
- grazing
- Library Collection RecordA micro-watershed design is presented for use in watershed research projects. The plot size is 5 m (1 X 5 m) and uses low cost materials for construction. This plot size is suitable for surface flow…Publication Date 1991-07-01
- surface water
- water flow
- microwatersheds
- watersheds
- soil erosion
- design
- watershed hydrology
- rangelands
- Library Collection RecordSeeding rangeland is a challenge for rangeland scientists, especially on those soils with tendency to crusting. Although some information is available on how soil conditioners affect emergence of…Publication Date 1992-05-01
- soil treatment
- polyacrylamide
- setaria macrostachya
- Sporobolus airoides
- sowing
- Bouteloua curtipendula
- Panicum antidotale
- crusts
- seedling emergence
- stand establishment
- Bothriochloa ischaemum
- range management
- rangelands
- New Mexico
- Library Collection RecordWe compared long-term historical and stochastically generated weather records in terms of their statistical attributes and effects on herbage yield and runoff forecasts calculated from model…Publication Date 1991-05-01
- yield forecasting
- hydrology models
- stochastic processes
- hydrologic data
- solar radiation
- simulation models
- prediction
- meteorological data
- air temperature
- runoff
- precipitation
- crop yield
- rangelands
- forage
- Library Collection RecordModels used to simulate plant growth and insect development on rangelands often assume that soil temperature is homogeneous over the entire area of interest. This simplifying assumption is made…Publication Date 1991-09-01
- statistics
- geostatistics
- rangeland soils
- Poa secunda
- soil depth
- soil temperature
- spatial variation
- temporal variation
- Bromus tectorum
- Idaho
- Artemisia tridentata
- plant communities
- plant litter
- rangelands
- Library Collection RecordBrush management for improving wildlife habitat in South Texas is important because of the economic value of wildlife. We determined vegetation responses to (1) roller chopping of guajillo (Acacia…Publication Date 1992-03-01
- Acacia rigidula
- Aloysia lycioides
- roller chopper
- discing
- Acacia berlandieri
- wildlife
- habitats
- brush control
- vegetation management
- Odocoileus virginianus
- Texas
- rangelands
- Library Collection RecordAppropriate application of significance tests in statistical analyses requires an explicit statement of hypothesis; a clear definition of the population(s) about which inferences are to be made; and…Publication Date 1992-05-01
- statistical inference
- research
- experimental design
- statistical analysis
- sampling
- rangelands
- Library Collection RecordRange condition is usually defined by similarity of current to climax or potential vegetation. It is often assumed that rangelands in low condition are biologically less productive than those in…Publication Date 1991-01-01
- seral stages
- site factors
- productivity
- pastures
- biomass production
- plant communities
- botanical composition
- rangelands
- Arizona
- forage
- Library Collection RecordSocial science research is an important tool for guiding development of education programs for owners of private rangelands. California oak woodland, a productive and extensive range type in…Publication Date 1990-03-01
- extension education
- attitudes and opinions
- private ownership
- surveys
- land management
- landowners
- land use
- Quercus
- California
- woodlands
- rangelands
- Library Collection RecordGreenhouse and field experiments were conducted to evaluate clopyralid formulations and triclopyr ester alone and in mixtures with clopyralid for control of honey mesquite. In the greenhouse,…Publication Date 1991-01-01
- foliar application
- basal dressings
- woody weeds
- herbicide mixtures
- clopyralid
- Prosopis glandulosa
- triclopyr
- brush control
- weed control
- chemical control
- application rates
- rangelands
- Library Collection RecordCrop coefficients (Kc) provide a means of relating evapotranspiration (ET) to standard references such as pan evaporation or other climatic based reference ET’s (ET = Kc*reference ET). They have been…Publication Date 1990-11-01
- lysimetry
- evaporation
- evapotranspiration
- measurements
- water requirements
- estimation
- transpiration
- South Dakota
- pastures
- Idaho
- Wyoming
- rangelands
- Library Collection RecordHarvesting trees for firewood in the oak hardwood rangelands of the western Sierra Nevada foothills creates slash that may be burned to improve livestock forage production or piled into brushpiles…Publication Date 1991-03-01
- economic analysis
- habitats
- hunting
- Quercus
- multiple land use
- fuelwood
- Callipepla californica
- brushwood
- slash
- pastures
- California
- cattle
- wildlife management
- range management
- rangelands
- grazing
- forage
- Library Collection RecordUnderstanding hydrologic processes on rangelands is essential to determine if water yield will increase through shrub management. Nine nonweighable lysimeters were monitored for 3 years to determine…Publication Date 1990-11-01
- lysimetry
- herbaceous vegetation
- Plains
- water balance
- interrill erosion
- hydrology
- ground cover
- Prosopis glandulosa
- watersheds
- soil water content
- shrubs
- Texas
- range management
- rangelands
- Library Collection RecordThe Bowen ratio/energy balance technique was used to estimate evaporation (E) from honey mesquite (Prosopis glandulosa Torr. var. glandulosa) as the difference in total E (plant and soil) between…Publication Date 1991-03-01
- bowen ratio/energy balance
- evaporation
- evapotranspiration
- sap flow
- ground cover
- Prosopis glandulosa var. glandulosa
- energy balance
- transpiration
- Texas
- rangelands
- Library Collection RecordThe measured runoff from a contour-ripped rangeland watershed is compared with hypothetical runoff based on KINEROS model simulations assuming that the watershed had not been treated. The results…Publication Date 1990-11-01
- ripping
- kinematics
- kineros model
- simulation models
- hydrology
- arid zones
- watersheds
- mathematical models
- runoff
- range management
- rangelands
- Arizona
- Library Collection RecordHeavy communal grazing pressure and rapid phytomass decomposition reduce shrub interspace cover in Somalia from 100% at the end of the growing season to 5% at the end of the dormant season. Intense…Publication Date 1990-11-01
- communal feeding
- interrill erosion
- hydrology
- watershed management
- ground cover
- watersheds
- Somalia
- sandy soils
- clay soils
- pastures
- grazing intensity
- shrubs
- plant litter
- rangelands
- livestock
- grazing
- infiltration
- Library Collection RecordHerbicides were applied aerially to honey mesquite (Prosopis glandulosa Torr.) in the Rolling Plains and Edwards Plateau land resource areas of Texas to evaluate efficacy during late season…Publication Date 1991-01-01
- aerial applications
- woody weeds
- timing
- application timing
- 2,4,5-T
- Prosopis glandulosa
- brush control
- weed control
- chemical control
- picloram
- application rates
- Texas
- rangelands
- Library Collection RecordPhenology of mesa dropseed [Sporobolus flexuosus (Thurb.) Rydb.] was studied from 1979 to 1987 on the Jornada Experimental Range in southern New Mexico. Growing season (March through November)…Publication Date 1991-01-01
- Sporobolus flexuosus
- Chihuahuan Desert
- crop growth stage
- Sporobolus
- deserts
- growth rate
- precipitation
- adaptability
- phenology
- rangelands
- pasture plants
- New Mexico
- plant height
- Library Collection RecordEight domestic sheep (Ovis aries L.) ewes were fitted with radio collars and tracked during the 1985 grazing season in Trysll, Hedmark County, southern Norway. The ewes were relocated 761 times…Publication Date 1991-01-01
- habitat selection
- activity
- Picea abies
- Dryopteris
- behavior
- behavior patterns
- grazing trials
- Norway
- summer
- diets
- sheep
- grazing behavior
- rangelands
- Library Collection RecordTwo changes in traditional range condition analyses are recom- mended: (1) to replace the terms excellent, good, fair, and poor with ecological equivalents of climax, late seral, mid-seral, and early…Publication Date 1990-11-01
- site class assessment
- assessment
- seral stages
- multiple land use
- site factors
- range management
- rangelands
- Library Collection RecordArmed saltbush [Atriplex acanthocarpa (Torr.) Wats.] and fourwing saltbush [A. canescens (Pursh) Nutt.] are browsed by livestock and white-tailed deer (Odocoileus virginianus Raf.). The objective of…Publication Date 1988-09-01
- atriplex acanthocarpa
- Atriplex canescens
- Odocoileus virginianus
- species
- digestibility
- semiarid zones
- Texas
- rangelands
- livestock
- forage
- plant height
- chemical constituents of plants
- Library Collection RecordFoliar sprays of 2,4-D [(2,4-dichlorophenoxy)acetic acid]), picloram (4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid), dicamba (3,6-dichloro-2-methoxy benzoic acid), or clopyralid (3,6-dichloro-2-…Publication Date 1988-11-01
- Chrysothamnus
- Weeds
- evaluation
- herbicides
- weed control
- species
- range management
- rangelands
- Utah
- Library Collection RecordThurber needlegrass (Stipa thurberiana Piper) is an important component of both forested and shrub-steppe communities of the Pacific Northwest and Great Basin regions, and little is known of its…Publication Date 1988-11-01
- Achnatherum thurberianum
- roots
- stocking rate
- regrowth
- Oregon
- range management
- phenology
- rangelands
- defoliation
- livestock
- grazing
- forage
- Library Collection RecordThe effects of temporary drought periods of semiarid regions were simulated by dehydration of germinating seeds of crested wheatgrass (Agropyron desertorum), Russian wildrye (Elymus junceus), alfalfa…Publication Date 1988-09-01
- Medicago sativa
- Astragalus cicer
- excision
- dehydration
- Psathyrostachys juncea
- roots
- Agropyron desertorum
- seedling emergence
- growth
- semiarid zones
- seed germination
- drought
- rangelands
- Library Collection RecordAverage ignition costs per ha for aerial and ground ignited prescribed burns in redberry juniper (Juniperus pinchotii)-mixed grass communities were compared to determine the feasibility of using…Publication Date 1988-09-01
- ignition devices and methods
- aerial methods
- Juniperus pinchotii
- economic analysis
- prescribed burning
- Texas
- range management
- rangelands
- Library Collection RecordLehmann lovegrass (Eragostis lehmanniana Nees) may be viewed as either an undesirable exotic invader or an important ground cover and forage plant on southwestern rangelands, depending on management…Publication Date 1988-09-01
- ground cover plants
- Weeds
- seedling emergence
- ecological succession
- mortality
- fires
- fire effects
- prescribed burning
- land restoration
- seed germination
- range management
- Eragrostis lehmanniana
- rangelands
- Arizona
- forage
- Library Collection RecordStocking rate effects on intensive-early stocked Kansas Flint Hills range were studied from 1982 through 1987. Rates were 2X, 2.5X, and 3X normal season-long stocking rates for 200-225 kg steers.…Publication Date 1988-11-01
- carbohydrates
- Kansas
- yields
- stocking rate
- winter
- Andropogon gerardii
- cattle
- rangelands
- grazing
- forage
- Library Collection RecordTall larkspur (Delphinium barbeyi) is a major cause of livestock death on mountain ranges. The influence of plant phenology, grazing site, and rumen fill on tall larkspur consumption was evaluated…Publication Date 1988-11-01
- consumption
- mountains
- mountain areas
- toxicity
- highlands
- site factors
- Delphinium barbeyi
- palatability
- rumen contents
- diet studies
- cattle
- rangelands
- Utah
- poisonous plants
- Library Collection RecordFireline intensity (kW/m) was measured on 61 plots of weeping lovegrass [Eragrostis curvula (Schrad.) Nees.] and tobosagrass [Hilaria mutica (Buckl.) Benth.] burned as headfires and backfires during…Publication Date 1988-09-01
- fireline intensity
- basal area
- Hilaria mutica
- Eragrostis curvula
- fires
- fire effects
- yields
- seeds
- prescribed burning
- land restoration
- Texas
- range management
- rangelands
- plant height
- Library Collection RecordTwenty-two adult, female mule deer (Odocoileus hemionus hemionus) were radio-collared with activity sensors and monitored with ground triangulation from mid-November through March, for 3 years (1982-…Publication Date 1988-11-01
- females
- habitat selection
- activity
- animal behavior
- feeding behavior
- Odocoileus hemionus
- rangelands
- ecology
- grazing
- Colorado
- Library Collection RecordContinuous or pulse doses of Yb-labeled feedstuffs with subsequent fecal sampling can be used to estimate digesta passage rates and fecal output in ruminants. However, the validity of such estimates…Publication Date 1988-09-01
- gastrointestinal motility
- analytical methods
- passage rates
- prediction
- feces composition
- digesta
- cattle
- range management
- rangelands
- feed intake
- Library Collection RecordPlant community and soil development were investigated on oil/gas drilling sites occupying both sagebrush and coniferous forest vegetation types in northwestern Wyoming. Sites ranged from 3 to 33…Publication Date 1988-09-01
- oil and gas wells
- coniferous forests
- soil analysis
- plant development
- disturbed soils
- plant community analysis
- reclamation
- ecological succession
- environmental impact reporting
- vegetation
- woody plants
- Wyoming
- rangelands
- Library Collection RecordGerminating seeds of crested wheatgrass (Agropyron desertorum), Russian wildrye (Elymus junceus), alfalfa (Medicago sativa), and cicer milkvetch (Astragalus cicer) were dehydrated for 4 days at -22…Publication Date 1988-09-01
- water uptake
- Medicago sativa
- Astragalus cicer
- excision
- dehydration
- Psathyrostachys juncea
- roots
- Agropyron desertorum
- seedling emergence
- species
- soil water content
- seed germination
- rangelands
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