Rangeland Ecology & Management
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- Library Collection RecordConcerns for the future of California's oak-woodlands have intensified the need to better understand how different overstory species affect herbage standing crops and species frequencies. Data…Publication Date 1991-07-01
- topography
- understory
- woodland grasslands
- site factors
- Quercus douglasii
- Quercus wislizeni
- Pinus sabiniana
- annual grasslands
- ceanothus cuneatus
- herbage standing crop
- plant ecology
- species diversity
- ecological succession
- biomass production
- plant communities
- California
- botanical composition
- forage
- Library Collection RecordSeasonal grazing trials, conducted over 3 years at the Hopland Field Station in Mendocino County, Calif., tested the effects of 2 seasonal grazing strategies on within- and between-year production…Publication Date 1992-01-01
- Quercus douglasii
- annual grasslands
- grazing trials
- savannas
- selective grazing
- California
- sheep
- seasonal variation
- botanical composition
- grazing
- Library Collection RecordThe Sandy Ridge Site of southern New Mexico was studied to determine the dependance of total standing crop and components of standing crop on range condition rating. Total standing crop which…Publication Date 1991-11-01
- Prosopis glandulosa
- ecological succession
- botanical composition
- rangelands
- New Mexico
- forage
- Library Collection RecordChanges in total biomass and botanical composition in a native pasture of the Flooding Pampa in the Salado River Basin (Province of Buenos Aires), under 3 grazing systems: spring-summer rest (…Publication Date 1991-09-01
- Paspalum dilatatum
- Sporobolus indicus
- bothriochloa laguroides
- seasonal grazing
- Bothriochloa
- floodplains
- continuous grazing
- yields
- rotational grazing
- natural grasslands
- biomass production
- grazing intensity
- seasonal variation
- Argentina
- botanical composition
- grazing
- grasses
- Library Collection RecordThe accuracy of microhistological techniques for analysis of herbivore diets was evaluated with cattle, sheep, and Angora goats fed grass, forb, and shrub mixtures of known botanical compositions.…Publication Date 1992-03-01
- feces analysis
- assessment
- feces composition
- shrubs
- diets
- sheep
- goats
- cattle
- botanical composition
- grasses
- New Mexico
- forage
- feeding preferences
- Library Collection RecordLive oak (Quercus virginiana Mill.) competes with herbaceous plants, but provides browse and mast for white-tailed deer (Odocoileus virginianus Zimmerman). We determined the effects of treating live…Publication Date 1991-09-01
- grassland improvement
- nutritional status
- browse
- Quercus virginiana
- foraging
- tebuthiuron
- woodland grasslands
- weed control
- yields
- Odocoileus virginianus
- biomass production
- Texas
- botanical composition
- browsing
- grasses
- forage
- feeding preferences
- Library Collection RecordThis study investigated the effect of grazing by California bighorn sheep (Ovis canadensis californiana) on plant community structure. Over 28 months from 1977 to 1979, bighorn diet consisted of 79…Publication Date 1991-09-01
- Ovis canadensis
- Ovis canadensis californiana
- community ecology
- British Columbia
- grasslands
- plant ecology
- species diversity
- ecological succession
- feces composition
- vigor
- plant communities
- shrubs
- botanical composition
- grazing
- grasses
- forage
- feeding preferences
- Library Collection RecordInstantaneous intake rate (IIR) and instantaneous nutrient intake rate (INIR) by tame white-tailed deer (Odocoileus virginianus) of 9 common browse species in south Texas were studied to determine if…Publication Date 1991-11-01
- browse plants
- Odocoileus virginianus
- Texas
- botanical composition
- browsing
- 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 RecordThe effect of late-autumn cattle grazing on plant biomass was examined in a western Great Plains cottonwood riparian zone prone to catastrophic flooding every 5-8 years. Following 1 year of pre-…Publication Date 1991-07-01
- autumn
- Populus
- floodplains
- Spartina
- Spartina pectinata
- environmental impact
- community ecology
- Populus deltoides subsp. monilifera
- standing biomass
- community composition
- riparian grasslands
- Salix
- leaves
- controlled grazing
- plant ecology
- flooding
- riparian buffers
- biomass production
- cattle
- biomass
- botanical composition
- grazing
- Colorado
- forage
- 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 RecordTallgrass prairies are an important forage resource in the eastern Central Great Plains. The effect of spring burning, fertilization, and atrazine [6-chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-…Publication Date 1992-05-01
- plant cultural practices
- Bromus inermis
- crop quality
- atrazine
- Poa pratensis
- fires
- fire effects
- nitrogen fertilizers
- Nebraska
- Sorghastrum nutans
- Andropogon gerardii
- prairies
- biomass
- range management
- botanical composition
- Library Collection RecordVegetational response of a nine-paddock, short-duration grazing cell was compared to that of a continuous pasture for a 5-year period in southcentral New Mexico. Differences in vegetational response…Publication Date 1991-07-01
- grazing time
- vegetation cover
- standing crop
- stocking rate
- pastures
- vegetation
- Bouteloua gracilis
- biomass production
- grazing intensity
- cattle
- biomass
- range management
- botanical composition
- grazing
- New Mexico
- Library Collection RecordAerial phytomass and litter dynamics of a grassland steppe in Patagonia, Argentina, were studied at either monthly or bimonthly intervals for 2 years. This area is characterized by a cold and wet…Publication Date 1990-03-01
- Poa
- Bromus
- Poa ligularis
- festuca pallescens
- rytidosperma virescens
- bromus setifolius
- hordeum comosum
- Hordeum
- Festuca
- steppes
- population dynamics
- pastures
- Poaceae
- biomass production
- range management
- Argentina
- botanical composition
- 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 RecordClearing and thinning of caatinga vegetation in northeastern Brazil are viewed as methods of optimizing forage and wood production. Our study compared the botanical composition of goat diets relative…Publication Date 1990-11-01
- tropical forests
- caatinga
- thinning
- goat feeding
- deciduous forests
- silvopastoral systems
- clearcutting
- woodland grasslands
- pastures
- natural grasslands
- diets
- goats
- Brazil
- biomass
- seasonal variation
- botanical composition
- canopy
- forage
- Library Collection RecordBotanical and chemical compositions of Angora goat (Capra hircus) diets, determined with esophageally cannulated animals, were studied with and independent of a cattle-sheep-goat herd in a short-…Publication Date 1990-03-01
- nutrient intake
- chemical composition
- pastures
- crude protein
- diets
- goats
- in vitro digestibility
- Texas
- botanical composition
- nutritive value
- grazing
- Library Collection RecordA 2-year experiment was conducted to determine the effect of 27 years of continuous grazing at moderate (7 ha/cow/yr) (MC) and heavy (5 ha/cow/yr) (HC) rates of stocking on seasonal diet selection…Publication Date 1990-07-01
- nutrient intake
- protein content
- stocking rate
- crude protein
- dietary supplements
- diets
- cattle
- in vitro digestibility
- seasonal variation
- botanical composition
- grazing
- forage
- Library Collection RecordDietary composition and quality, activity budgets, and foraging behavior of tame mule deer (Odocoileus hemionus hemionus) were monitored in winter to ascertain the effects of prior summer use of…Publication Date 1990-05-01
- overwintering
- snow
- foraging
- Odocoileus hemionus
- Odocoileus
- diet studies
- goats
- wildlife management
- botanical composition
- Utah
- browsing
- Library Collection RecordDiet composition, performance, and production of calves and lambs grazing in combination were contrasted between a repeated-seasonal (RSG) (May-Sept.) and a 16-subunit, 1-herd high-performance short-…Publication Date 1990-07-01
- mixed grazing
- lambs
- mixed pastures
- controlled grazing
- liveweight gain
- calves
- grazing trials
- South Dakota
- stocking rate
- diets
- botanical composition
- feeding preferences
- Library Collection RecordIt is common in range science to base stocking rate estimates on range sites as units of forage production. However, little is known about how diet composition, quality, and intake may differ by…Publication Date 1990-03-01
- availability
- grazing pressure
- clay loam soils
- nutrient intake
- site factors
- pastures
- sandy loam soils
- heifers
- diets
- grazing behavior
- in vitro digestibility
- botanical composition
- nutritive value
- forage
- Library Collection RecordUtilization patterns of cattle were related to pasture characteristics in a nonrandom and complex manner. Six mixed brush pastures on the Rio Grande Plains (244-356 ha) that were topographically flat…Publication Date 1991-03-01
- consumption patterns
- availability
- mixed pastures
- foraging
- environmental factors
- grazing behavior
- spatial distribution
- cattle
- plant density
- Texas
- range management
- botanical composition
- grazing
- grasses
- forage
- Library Collection RecordThe phenology of 75 plant species belonging to an Artemesia tridentata Nutt./Agropyron spicutum (Pursh.) Scribn. & Smith plant community in southern British Columbia was recorded in 1978 and 1979…Publication Date 1990-07-01
- temporal distribution
- Pseudoroegneria spicata
- distribution
- British Columbia
- adaptation
- soil water content
- growth rate
- Artemisia tridentata
- plant communities
- spatial distribution
- drought
- range management
- phenology
- botanical composition
- forage
- Library Collection RecordA key to management of short duration grazing systems is maintaining proper rest periods for individual pastures, but information on the necessary length of rest periods for tallgrass prairie is…Publication Date 1991-03-01
- grazing time
- controlled grazing
- ecological succession
- stocking rate
- rotational grazing
- Oklahoma
- natural grasslands
- grazing intensity
- plant communities
- cattle
- prairies
- botanical composition
- grazing
- Library Collection RecordLittle information is available on goat nutrition and diet selection on shrub-dominated ranges. This study examined the botanical and nutritive composition of Angora and Spanish goat diets, and…Publication Date 1990-03-01
- alfalfa
- alfalfa hay
- digestible energy
- Quercus havardii
- fiber content
- pastures
- tannins
- hay
- crude protein
- feed supplements
- diets
- goats
- in vitro digestibility
- Texas
- botanical composition
- nutritive value
- forage
- feed intake
- Library Collection RecordThree rates of dried sewage sludge (22.5, 45.0, and 90.0 Mg (megagrams) ha-1), were applied to a degraded semiarid grassland site on the Upper Rio Puerto Watershed in west-central New Mexico. Various…Publication Date 1990-07-01
- heavy metals
- sewage sludge
- semiarid soils
- soil amendments
- grassland improvement
- population density
- soil fertility
- Gutierrezia sarothrae
- yields
- trace elements
- nutrient contents of plants
- Bouteloua gracilis
- growth rate
- botanical composition
- New Mexico
- forage
- Library Collection RecordChanges in herbaceous plant density and canopy cover of creosotebush (Larrea tridentata Sesse & Moc. ex DC) and associated shrubs following brush control treatments were measured in Sonoran and…Publication Date 1991-03-01
- land imprinting
- railing
- Chihuahuan Desert
- Sonoran Desert
- Larrea tridentata
- xerophytes
- tillage
- manual weed control
- discing
- deserts
- tebuthiuron
- brush control
- Mexico
- forbs
- shrubs
- plant density
- botanical composition
- canopy
- grasses
- Arizona
- Library Collection RecordShort-duration grazing (SDG) has been purported to increase forage production and utilization compared to other grazing systems, and thus can sustain higher stocking rates. This study was designed to…Publication Date 1990-03-01
- availability
- stocking rate
- pastures
- cattle
- plant density
- Texas
- botanical composition
- grazing
- forage
- Library Collection RecordImproved carrying capacity of grasslands has been attributed to the effect of time-controlled grazing with high animal density, which can be achieved by increased stocking rates as well as by fencing…Publication Date 1990-11-01
- stress response
- mixed pastures
- Festuca
- controlled grazing
- grazing trials
- root systems
- Alberta
- stocking rate
- regrowth
- natural grasslands
- cattle
- prairies
- crop yield
- botanical composition
- grazing
- 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 RecordA wheel-point apparatus and hand-held computer are operated by one person for logging, checking, and summarizing of plant data. The point cover method is modified to record plant community…Publication Date 1989-01-01
- computer techniques
- methodology
- plant community analysis
- stand structure
- plant cover
- sampling
- botanical composition
- Library Collection RecordHand separation of roots of 2 or more plants species from soil cores is a tedious and labor-intensive task. Our objective was to determine whether near-infrared reflectance spectroscopy (NIRS) could…Publication Date 1988-11-01
- Elytrigia repens
- mixed pastures
- Medicago sativa
- Elytrigia intermedia subsp. intermedia
- Pseudoroegneria spicata
- biomass determination
- Psathyrostachys juncea
- roots
- carbohydrates
- Agropyron cristatum
- infrared spectroscopy
- Poaceae
- botanical composition
- Library Collection RecordReplicated populations of 5 shrub species were monitored over a 3-year period to assess community responses to intensive browsing by Spanish-type goats. Response variables included stem density, stem…Publication Date 1989-09-01
- productivity
- goats
- botanical composition
- Utah
- Library Collection RecordA study was conducted in the Texas Rolling Plains to test the hypotheses that short-duration grazing increases plant density and diversity in grasslands. Densities of 9 species of winter annual forbs…Publication Date 1989-09-01
- annuals
- rotational grazing
- grazing intensity
- Texas
- botanical composition
- Library Collection RecordChanges in community composition of 2 grassland sites exposed to a flood of unusual intensity and duration were investigated in the Flooding Pampa. These grasslands are subject almost annually to…Publication Date 1988-11-01
- flora
- plant community analysis
- floodplains
- grasslands
- flooding
- cattle
- Argentina
- botanical composition
- grazing
- forage
- Library Collection RecordThe relationship between leafy spurge (Euphorbia esula L.) and the species composition of mixed-grass prairie was examined on both a large scale, within a 200-km2 area, and on a local scale, within a…Publication Date 1989-03-01
- Manitoba
- disturbed soils
- Euphorbia esula
- prairies
- botanical composition
- Library Collection RecordVegetation community response is an important factor determining the potential for improvement of rangeland dormant season forage availability through implementation of grazing systems. Heavy…Publication Date 1989-01-01
- vegetation types
- dominant species
- Somalia
- plant communities
- botanical composition
- grazing
- Library Collection RecordVegetation and soils were evaluated on 5 different-aged, mechanically treated and seeded pinyon-juniper sites and compared to adjacent untreated areas. Plant cover was significantly changed after…Publication Date 1989-03-01
- botanical composition
- Pinus
- Juniperus
- removal
- Utah
- Library Collection RecordGrazing was eliminated from the Appleton-Whittell Research Ranch Sanctuary, located in south-central Arizona, in 1968. Long-term changes in canopy cover of vegetation were evaluated between 1969 and…Publication Date 1989-07-01
- recovery
- ecosystems
- pastures
- grazing intensity
- plant communities
- semiarid zones
- botanical composition
- grazing
- Arizona
- Library Collection RecordA field study was conducted from 1981 through 1986 on an established stand of grass and legume species on topsoiled coalmine spoils in northwest Colorado to evaluate the effects of N and P…Publication Date 1989-07-01
- fodder legumes
- residual effects
- phosphorus fertilizers
- crop quality
- dry matter accumulation
- protein content
- coal mined land
- nitrogen fertilizers
- mountain grasslands
- crude protein
- growth rate
- plant density
- application rates
- range management
- crop yield
- botanical composition
- grasses
- Colorado
- forage
- Library Collection RecordThe concepts and use of several diversity assessments are presented and applied to a practical situation. Burning, mechanical methods of site preparation, and cattle grazing are common disturbances…Publication Date 1988-11-01
- shannon's diversity index
- simpson's diversity index
- forestry
- diversity
- plant ecology
- ecological succession
- Florida
- species
- prescribed burning
- Poaceae
- range management
- botanical composition
- Pinus
- grazing
- Library Collection RecordContinuous stocking usually leads to the formation of grazed patches. However, the effect of patches on the grassland community is related to their stability. Therefore, we studied the spatial…Publication Date 1988-11-01
- Festuca altaica
- plant community analysis
- danthonia parryi
- grasslands
- yields
- Alberta
- stocking rate
- botanical composition
- livestock
- grazing
- forage
- Library Collection RecordSecondary brush species (found as minor components of the climax community and those from lower seral stages) have increased after most prescribed burns on the Edwards Plateau of Texas. Originally,…Publication Date 1989-07-01
- land clearance
- Rhus
- rhus lanceolata
- Juniperus ashei
- Quercus
- topography
- brush control
- ecological succession
- prescribed burning
- plant communities
- plant density
- Texas
- range management
- botanical composition
- Library Collection RecordAn algorithm was developed to conduct bite-count sampling employing a programmable pocket computer. The BASIC program was successfully employed to collect forage selection data on rangeland livestock…Publication Date 1989-09-01
- computer software
- botanical composition
- forage
- Library Collection RecordThe comparative yield (CY) method for estimating pasture dry weight and the dry-weight-rank (DWR) method for determining species composition were applied in a variety of arid vegetation types by…Publication Date 1988-09-01
- Northern Territory
- arid zones
- dry matter accumulation
- prediction
- yields
- monitoring
- botanical composition
- rangelands
- geographical distribution
- Library Collection RecordDense stands of small trees restrict understory production and provide suitable habitat for tsetse-fly in many areas in Tanzania. Three methods (ring barking, cut stump and frilling) of applying a…Publication Date 1989-07-01
- stump sprays
- frilling
- combretum molle
- combretum ternifolium
- combretum binderanum
- Combretum
- black soils
- woody weeds
- 2,4-D
- herbicide mixtures
- 2,4,5-T
- brush control
- vegetation management
- sandy soils
- Tanzania
- weed control
- chemical control
- range management
- botanical composition
- Library Collection RecordSpring application of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] (1.1 kg ha-1 a.i.), burning, and nitrogen (33 kg ha-1 as ammonium nitrate) were evaluated alone and in all…Publication Date 1987-09-01
- atrazine
- grassland improvement
- fertilizer application
- ecological succession
- nitrogen
- prescribed burning
- Oklahoma
- Poaceae
- prairies
- botanical composition
- Library Collection RecordEight field trials [early August 1983 (EAUG83), late August 1983 (LAUG83), early November 1983 (ENOV83), early January 1984 (EJAN84), May 1984 (MAY84), late July 1984 (LJUL84), late August 1984 (…Publication Date 1987-11-01
- fertilizer application
- nitrogen
- digestion
- steers
- digesta
- kinetics
- Bouteloua gracilis
- rumen fermentation
- botanical composition
- rangelands
- grazing
- New Mexico
- forage
- feed intake
- 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 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