Rangeland Ecology & Management
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- Library Collection RecordCheatgrass (Bromus tectorum L.) dominates large tracts of rangeland in the western United States. Previous research has demonstrated the competitive nature of this species; however, the mechanisms…Publication Date 1990-09-01
- density
- leaf area
- growth periods
- roots
- root shoot ratio
- Agropyron desertorum
- root systems
- seedlings
- Bromus tectorum
- length
- growth rate
- biomass
- plant competition
- Library Collection RecordA 4-year study was conducted on Cross Timbers range in north-central Oklahoma. Conventional seasonlong grazing (SLS) of stocker cattle was compared to intensive-early season stocking (IES). Stocking…Publication Date 1990-03-01
- forests
- liveweight gain
- stocking rate
- pastures
- vegetation
- Oklahoma
- prairies
- defoliation
- grazing
- beef cattle
- forage
- Library Collection RecordCombined grazing by black-tailed prairie dogs (Cynomys ludovicianus) and bison (Bison) produces and maintains a series of changes in the vegetation of prairie dog colonies. However, because their…Publication Date 1991-03-01
- grazing time
- Cynomys ludovicianus
- mixed pastures
- bison
- controlled grazing
- South Dakota
- vegetation
- grazing intensity
- nitrogen content
- prairies
- biomass
- range management
- botanical composition
- grazing
- Library Collection RecordAtrazine [6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diamine] can be used to modify species composition of naturally subirrigated Sandhills meadows. The potential for ground water…Publication Date 1988-09-01
- groundwater contamination
- dispersion
- herbicide residues
- physicochemical properties
- atrazine
- herbicides
- Nebraska
- runoff
- vegetation
- kinetics
- range management
- Library Collection RecordA rising plate meter (RPM) and ocular estimation of herbage fresh weight (OCES) were compared as double sampling methods to measure herbage dry weight (DWT) in a mountain meadow grazed by cattle (0,…Publication Date 1989-01-01
- mountains
- mountain areas
- meadows
- measurements
- highlands
- estimation
- California
- biomass
- range management
- forage
- Library Collection RecordThe effects of N fertilization on spotted knapweed (Centaurea maculosa Lamarck) and competing vegetation were studied at 2 sites in western Montana during 1981 through 1984. The N was applied 1 time…Publication Date 1989-05-01
- Centaurea maculosa
- crested wheatgrass
- quackgrass
- Agropyron cristatum
- Agropyron repens
- biomass
- yield
- Library Collection RecordAbove- and belowground net primary production (ANPP and BNPP) were compared between a 30-year-old crested wheatgrass site and an adjacent native shortgrass prairie. ANPP was estimated using…Publication Date 1989-03-01
- roots
- Agropyron cristatum
- Wyoming
- prairies
- biomass
- grasses
- 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 RecordHealthy meadow communities generally have excellent soil binding properties. However, belowground characteristics of these communities have seldom been evaluated. In 4 meadow community types (CTs) we…Publication Date 1989-07-01
- Carex douglasii
- poa nevadensis
- gradients
- Carex nebrascensis
- rooting depth
- Poa
- Juncus
- Juncus balticus
- meadows
- Carex
- plant ecology
- root systems
- length
- plant communities
- spatial distribution
- biomass
- Nevada
- soil water regimes
- Library Collection RecordPatterns of end-of-season standing crop were evaluated during a 4-year period on an oak-bunchgrass range site under short-duration grazing in northern Mexico. Patterns were determined as a function…Publication Date 1989-01-01
- crop management
- Mexico
- stocking rate
- biomass
- range management
- grazing
- Library Collection RecordA lightweight quadrat frame for backcountry vegetation sampling is described. The frames are constructed of aluminum and disassemble for easy packing. The cost per frame is about $15. This material…Publication Date 1988-07-01
- backpacking
- frames
- equipment
- vegetation
- sampling
- rangelands
- Library Collection RecordFourwing saltbush [Atriplex canescens (Pursh) Nutt.] seedlings from 4 western Texas tetraploid populations were established in uniform nurseries at San Angelo, Barnhart, and Marfa, Texas, in 1981 to…Publication Date 1987-07-01
- digestible organic matter
- phenotype
- ecotypes
- leaves
- flowers
- stems
- genetic variation
- Atriplex canescens
- mortality
- adaptation
- environmental factors
- phosphorus
- nutrient contents of plants
- crude protein
- land restoration
- Texas
- biomass
- phenology
- nutritive value
- canopy
- Library Collection RecordThe forage disk meter, a double sampling device used to predict forage biomass, has been used extensively on improved pastures, but its use on rangelands has not been investigated thoroughly.…Publication Date 1987-09-01
- discs
- meters
- calibration
- Kansas
- regression analysis
- sampling
- biomass
- botanical composition
- rangelands
- forage
- Library Collection RecordThe objective of this research was to determine the effects of selected vegetation, soil, rock, and slope variables on infiltration of semiarid rangelands with slope gradients ranging from 0-70%.…Publication Date 1988-05-01
- rocks
- correlation
- semiarid soils
- rangeland soils
- soil depth
- hydrology
- vegetation
- slopes
- range management
- infiltration
- New Mexico
- soil water
- Library Collection RecordProbabilities of detecting frequency differences based on data obtained by random sampling were determined by computer simulation. Artificial, monotypic populations of known frequency were generated…Publication Date 1987-09-01
- hypothesis testing
- probability analysis
- frequency distribution
- computer simulation
- vegetation
- sampling
- botanical composition
- rangelands
- Library Collection RecordBroom snakeweed (Gutierrezia sarothrae [Pursh] Britt. and Rusby) has increased in density and distribution on many southwestern ranges. The objective of this study was to determine root and shoot…Publication Date 1988-01-01
- roots
- shoots
- Gutierrezia sarothrae
- seedlings
- growth rate
- establishment
- biomass
- New Mexico
- Library Collection RecordTotal nonstructural carbohydrates (TNC) and nitrogen (N) in 'WW-Spar' (Bothriochloa ischaemum) and 'Caucasian' (B. caucasica) Old World bluestems were monitored in field…Publication Date 1987-07-01
- reserve materials
- sheaths
- concentration
- specific leaf weight
- total nonstructural carbohydrates
- seasonal growth
- leaves
- roots
- carbohydrates
- stems
- vegetation management
- Bothriochloa ischaemum
- Bothriochloa bladhii
- vigor
- nitrogen
- biomass
- Library Collection RecordCalculated reflectance factors and vegetation indices derived from radiometric reflectance measurements were used in regression analyses to test for a single relationship between canopy reflectance…Publication Date 1987-07-01
- reflectance
- radiometry
- remote sensing
- Agropyron desertorum
- leaf area index
- pastures
- vegetation
- rangelands
- canopy
- dry matter
- North Dakota
- Library Collection RecordMost arid and semiarid rangeland plants form a mycorrhizal symbiosis with certain fungi through which the host plants absorb water and nutrients from the soil. Small mammals are known to disperse…Publication Date 1988-07-01
- mycorrhizal fungi
- spore dispersal
- symbiosis
- arid zones
- wildlife
- ecological succession
- vegetation
- mammals
- Oregon
- semiarid zones
- rangelands
- Library Collection RecordUnderstanding the temporal response of vegetation to selected livestock grazing strategies is necessary for the continued maintenance or increased productivity of rangelands. Vegetation cover and…Publication Date 1988-03-01
- plant community analysis
- plant ecology
- ecological succession
- grazing experiments
- grazing intensity
- Texas
- biomass
- rangelands
- livestock
- grazing
- Library Collection RecordSoil ingestion ratios were estimated for 2 primary herbivore species utilizing a sagebrush ecosystem in southeastern Idaho to determine the relative importance of soil and vegetation pathways in…Publication Date 1988-03-01
- Idaho
- vegetation
- Lepus
- ingestion toxicity
- Antilocapra americana
- soil ingestion
- trace elements
- pollution
- Library Collection RecordChanges in vegetation under yearlong grazing were compared with those under the Santa Rita grazing system, a rotation system designed for southwestern US rangelands where 90% of the forage is…Publication Date 1988-07-01
- yield response functions
- grasslands
- vegetation
- rotational grazing
- semiarid zones
- plant density
- range management
- grazing
- Arizona
- Library Collection RecordTrends in canopy-coverage of vegetation and bare ground were measured inside and outside exclosures on recent burns within three-pasture rest-rotation and season-long grazing systems over a 10-year…Publication Date 1987-09-01
- ground cover
- ecological succession
- vegetation
- cattle
- Montana
- grazing
- Library Collection RecordResearch was initiated at the Texas Experimental Ranch in 1981 to quantify the effects of 2 stocking densities, equivalent to 14- and 42-paddock rotational grazing (RG) treatments, on aboveground…Publication Date 1987-05-01
- stocking rate
- rotational grazing
- cattle
- Texas
- biomass
- rangelands
- grazing
- forage
- Library Collection RecordAbove- and belowground biomass dynamics of 'WW-Spar' (Bothriochloa ischaemum) and 'Caucasian' (B. caucasica) Old World bluestems were monitored under field conditions during…Publication Date 1986-07-01
- plant physiology
- roots
- plant morphology
- Bothriochloa ischaemum
- Bothriochloa bladhii
- water-use efficiency
- Oklahoma
- growth rate
- biomass
- rangelands
- forage
- Library Collection RecordStudies have shown a negative relationship between stocking rate and animal performance in conventional grazing systems. However, short-duration grazing (SDG) proponents state that stocking rates can…Publication Date 1986-05-01
- Parkinsonia
- cercidium floridum
- annual fluctuations
- carbon
- Prosopis juliflora
- deserts
- biogeochemical cycles
- plant analysis
- nitrogen
- biomass
- plant litter
- seasonal variation
- rangelands
- Arizona
- chemical constituents of plants
- Library Collection RecordTraditional methods of monitoring brush canopies such as ground survey and aerial photography are not cost effective for large areas. This experiment compared photo-estimated brush canopy closure to…Publication Date 1986-05-01
- brushwood and scrub
- multispectral scanning system
- Landsat
- biomass determination
- remote sensing
- brush control
- indexes
- vegetation
- Texas
- rangelands
- canopy
- Library Collection RecordStudies on several wild and domestic ungulates suggest that large grazers attain higher maximum forage intake rates but require relatively higher forage biomass to do so. In this study, forage intake…Publication Date 1987-01-01
- bison
- boreal forests
- foraging
- Alberta
- biomass
- range management
- ecology
- feed intake
- Library Collection RecordSeasonal nitrogen dynamics were documented in an undisturbed sand shinnery oak (Quercus havardii) community and in similar areas treated with tebuthiuron 3 years and 6 years prior to sampling in 1981…Publication Date 1986-09-01
- residual effects
- field tests
- above-ground biomass
- below-ground biomass
- nitrogen metabolism
- tebuthiuron
- sandy soils
- weed control
- Quercus havardii
- soil chemistry
- Texas
- biomass
- seasonal variation
- rangelands
- Library Collection RecordThis study examines the impact of long-tailed vole (Microtus longicaudus) and deer mouse (Peromyscus maniculatus) population changes and their feeding behavior on shrub populations and the resulting…Publication Date 1987-01-01
- plant damage
- Peromyscus maniculatus
- microtus longicaudus
- Peromyscus
- Microtus
- ecosystems
- plant ecology
- steppes
- population dynamics
- woody plants
- herbivores
- Wyoming
- Artemisia tridentata
- biomass
- plant litter
- rangelands
- Library Collection RecordThe dry-weight-rank (DWR) method for determining species composition of tallgrass prairie vegetation was compared to hand clipping. Species composition estimates for the 2 methods were similar in 3…Publication Date 1986-05-01
- vegetation sampling
- species
- vegetation
- sampling
- Oklahoma
- prairies
- botanical composition
- rangelands
- dry matter
- Library Collection RecordSome high-elevation summer ranges in southwestern Utah are characterized by a dominance of grass and low-value forbs. A reference area of forb dominance provides a striking contrast to these grass…Publication Date 1986-09-01
- long term experiments
- regenerative ability
- vegetation
- mountain grasslands
- sheep
- Utah
- grazing
- Library Collection RecordLive and standing dead biomass, standing crop, and total nitrogen, within each component, were measured in a big sacaton (Sporobolus wrightii Monro) grassland in southeastern Arizona for 3 years to…Publication Date 1985-05-01
- Sporobolus wrightii
- Sporobolus
- soil
- biomass determination
- grasslands
- vegetation
- nitrogen content
- Texas
- grazing
- New Mexico
- Arizona
- Library Collection RecordThe reduction in extent of riparian forests in the southwestern United States has been a topic of recent concern. The effect of dams on downstream river flow and the consequent modification of the…Publication Date 1985-03-01
- water conservation
- Populus fremontii
- Populus
- riparian forests
- vegetation
- Arizona
- Library Collection RecordIn the northern Great Basin, populations of black-tailed jackrabbits (Lepus californicus) are cyclic, reaching high densities at approximately 10-year intervals. This project examined impacts of…Publication Date 1986-03-01
- Lepus californicus
- ground cover
- population density
- steppes
- Chrysothamnus viscidiflorus
- Krascheninnikovia lanata
- Idaho
- Lepus
- plant communities
- biomass
- rangelands
- ecology
- grazing
- Library Collection RecordTerminal infiltration rates under sagebrush canopies were about 35% higher than interspace areas at 3 study sites in northern New Mexico. Differences in infiltration rates among strata may largely be…Publication Date 1986-03-01
- deserts
- sediments
- ground cover
- tebuthiuron
- brush control
- chemical control
- runoff
- vegetation
- Artemisia tridentata
- rangelands
- canopy
- infiltration
- New Mexico
- soil texture
- Library Collection RecordEstablishment of forage grasses depends upon their ability to compete for resources in the critical seedling establishment phase. Desirable native grass species are generally considered to be more…Publication Date 1985-11-01
- forage crops
- Bothriochloa
- C4 photosynthesis
- leaf area
- plant morphology
- perennials
- seedlings
- growth
- biomass
- grasses
- water stress
- Library Collection RecordNest site selection of the mountain plover (Charadrius montanus) was studied on the Charles M. Russell National Wildlife Refuge, Montana, during 1982. Vegetative characteristics of 26 nest sites, all…Publication Date 1985-05-01
- Charadriidae
- charadrius montanus
- charles m. russell national wildlife refuge, montana
- wildlife
- habitats
- vegetation
- Montana
- Library Collection RecordExpressing the effects of grazing animals on herbage requires explicitly defined variables describing herbage growth and herbage disappearance, as well as variables describing net changes in herbage…Publication Date 1986-01-01
- mathematics and statistics
- growth analysis
- regeneration
- biomass determination
- vegetation
- livestock
- grazing
- Library Collection RecordMuch of the farmland in the Canadian Prairie region has been abandoned over the years and allowed to revert to weedy cover and eventually to grassland. While some of the changes in vegetation during…Publication Date 1985-11-01
- agricultural land
- abandoned land
- soil organic matter
- grasslands
- reclamation
- ecological succession
- Saskatchewan
- Alberta
- vegetation
- semiarid zones
- land restoration
- soil chemistry
- rangelands
- Library Collection RecordTotal production of aboveground biomass on a 238-ha watershed was not affected when big sagebrush (Artemisia tridentata) was controlled by aerial application of 2,4-D (2,4-dichlorophenoxyacetic acid…Publication Date 1986-03-01
- plant propagation
- aerial spraying
- 2,4-D
- grassland improvement
- pesticide application
- watersheds
- brush control
- Wyoming
- Artemisia tridentata
- biomass
- botanical composition
- rangelands
- grasses
- Library Collection RecordBiomass components of mesquite (Prosopis juliflora (Swartz) DC) and palo verde (Cercidium floridum (Benth)) soil-plant systems were collected during spring, winter, and fall for 3 years to study the…Publication Date 1986-03-01
- Parkinsonia
- cercidium floridum
- annual fluctuations
- carbon
- Prosopis juliflora
- deserts
- biogeochemical cycles
- plant analysis
- nitrogen
- biomass
- plant litter
- seasonal variation
- rangelands
- Arizona
- chemical constituents of plants
- Library Collection RecordThe effects of grazing management systems on plant communities in the Great Basin are largely unknown. This study is a quantitative description of the response of vegetation from 1973 to 1983 on the…Publication Date 1986-03-01
- dominant species
- responses
- ecological succession
- vegetation
- rotational grazing
- plant communities
- range management
- botanical composition
- Nevada
- rangelands
- grazing
- Library Collection RecordThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made…Publication Date 1984-09-01
- climax communities
- classification
- vegetation
- Library Collection RecordBasal cover and standing crop of herbaceous vegetation were measured during 1979 and 1980 at 0.3-m intervals along transects radiating from individual lotebush canopies in each cardinal direction.…Publication Date 1984-07-01
- Ziziphus
- vegetation
- Texas
- Library Collection RecordThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made…Publication Date 1984-09-01
- Peromyscus
- reclaimed land
- vegetation
- herbivores
- Wyoming
- Library Collection RecordAgropyron smithii populations exposed to 3 controlled SO2 concentrations were defoliated either once or twice during the growing season at a light and a heavy intensity. The intensity and frequency…Publication Date 1985-01-01
- sulfur dioxide
- growth
- Pascopyrum smithii
- biomass
- defoliation
- Library Collection RecordAbused rangelands dominated by introduced cool-season grasses and warm-season shortgrasses are common over much of the Mixed Prairie. Native decreaser species are primarily warm-season grasses and…Publication Date 1985-01-01
- pastures
- Nebraska
- prescribed burning
- vegetation
- prairies
- Library Collection RecordAnnual and perennial plant vegetation was sampled following a controlled burn (1981) and a wildfire (1980) in the Upper Sonoran Desert near Phoenix, Ariz. Perennial plant composition 1 year after…Publication Date 1984-11-01
- Upper Sonoran Desert
- Controlled Burn
- Shoot Surviviers
- Sprouters
- seeders
- Brittle Brush
- Encelia farinosa
- Invader Species
- Stickweed
- Stephanomeria exigua
- Four O'Clock
- Mirabilis bigelovii
- Bulldog Canyon
- herbaceous plants
- Woody Perennials
- vegetation responses
- Cacti
- Short Term
- annuals
- plant composition
- wildfire
- fire
- perennials
- vegetation
- Arizona
- Library Collection RecordSmall mammal populations were sampled annually over 4 years in native plant communities and improved rangeland types. All species of rodents were relatively less abundant where western wheatgrass was…Publication Date 1984-07-01
- rodents
- vegetation
- wildlife management
- rangelands
- Utah
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