Rangeland Ecology & Management
Get reliable science
Toggle Search
Result Type
Collection
Keywords
Document Type
Displaying 201 - 250 of 383 results
- Library Collection RecordIngestion of tall larkspur (Delphinium barbeyi L. Huth) is a major cause of cattle death on ranges where the plant occurs. The amount and timing of tall larkspur ingestion by grazing cattle was…Publication Date 1988-03-01
- alkaloids
- Delphinium barbeyi
- ingestion toxicity
- mountain grasslands
- grazing behavior
- cattle
- phenology
- rangelands
- Utah
- poisonous plants
- Library Collection RecordCattle preference for immature white locoweed (Oxytropis sericea Nutt.) seed pods reported in a previous intensive grazing study was confirmed using free-ranging cows under natural grazing conditions…Publication Date 1987-07-01
- pods
- native livestock
- habituation
- Oxytropis
- weed palatability
- leaves
- Oxytropis sericea
- poisonous weeds
- grazing behavior
- cattle
- feeding preferences
- Library Collection RecordManipulating stocking rate and duration of grazing is fundamental to range management. It has been claimed that rotation grazing systems will increase stocking capacity of range while maintaining or…Publication Date 1988-07-01
- economics
- Hesperostipa comata
- Agropyron
- liveweight gain
- stocking rate
- crop production
- rotational grazing
- Pascopyrum smithii
- Wyoming
- grazing intensity
- cattle
- range management
- grazing
- forage
- Library Collection RecordNutritional studies frequently require an estimate of animal diet digestibility, but current in vitro techniques require costly fistulated animals, and variation in rumen fluid activity often results…Publication Date 1988-07-01
- feed mixing
- cellulases
- rumen fluids
- histology
- Poaceae
- diet studies
- cattle
- in vitro digestibility
- Texas
- rangelands
- forage
- Library Collection RecordThe feasibility of using esophageal extrusa to monitor dietary tannin levels was studied using 4 shrub species (Purshia tridentata, Quercus gambelii, Cercocarpus montanus and Acer grandidentatum).…Publication Date 1987-09-01
- Acer saccharum subsp. grandidentatum
- mastication
- Quercus gambelii
- saliva
- phenolic compounds
- Purshia tridentata
- browse plants
- esophagus
- tannins
- crude protein
- cattle
- in vitro digestibility
- Utah
- Cercocarpus montanus
- Library Collection RecordLinear programming ranch models were constructed for size of ranch and species of livestock operation within 5 regions of Colorado. Options to improve existing ranch resources and regional forage…Publication Date 1987-11-01
- demand
- animal husbandry
- grazing on public land
- linear programming
- prices
- cattle
- Colorado
- forage
- Library Collection RecordUtilization of a crested wheatgrass pasture was studied at constant stocking rate (3 cattle/ha) in pastures of 1, 2, 4, and 8 ha, with herd sizes ranging from 3-24 head. Pasture utilization on a…Publication Date 1988-01-01
- livestock numbers
- Agropyron desertorum
- pastures
- grazing behavior
- cattle
- Utah
- feeding preferences
- Library Collection RecordA survey of the levels of the neurotoxic diterpenoid alkaloid methyllycaconitine (MLA) in low larkspur (Delphinium nuttallianum Pritz.) was conducted at 4 diverse rangeland sites in southern British…Publication Date 1988-05-01
- toxic substances
- alkaloids
- neurotoxins
- toxicity
- British Columbia
- poisonous weeds
- species
- cattle
- Delphinium
- chemical constituents of plants
- Library Collection RecordProfit maximizing combinations of livestock enterprises, plant control practices, and grazing management systems for ranches in the southern High Plains were examined. A typical ranch and a multi-…Publication Date 1987-11-01
- farm income
- linear programming
- timing
- grassland improvement
- ranching
- brush control
- Quercus havardii
- cattle
- Texas
- range management
- grazing
- New Mexico
- Library Collection RecordConcentrations and loadings (output, number day-1 km-2) of fecal coliform (FC) indicator bacteria were measured from 1979 through 1984 in streamflow from 13 forested watersheds under the following…Publication Date 1987-07-01
- Escherichia coli
- water pollution
- coliform bacteria
- grant county, oregon
- streams
- watersheds
- feces
- Oregon
- grazing intensity
- cattle
- water quality
- grazing
- Library Collection RecordTobosa (Hilaria mutica [Buckl.] Benth.) was seasonally grazed with cattle under high-density (2.1 to 5.1 animal unit/hectare [AU/ha]) rotation and low-density (0.33 and 0.39 AU/ha) continuous…Publication Date 1988-01-01
- crop quality
- Hilaria mutica
- arid zones
- liveweight gain
- stocking rate
- rotational grazing
- crude protein
- cattle
- rangelands
- grazing
- New Mexico
- forage
- Library Collection RecordA 16-paddock, cell-designed, rotational grazing (RG) system was initiated in March 1981 to evaluate the effects of RG on various vegetation response variables and cow/calf production. This 20-month…Publication Date 1987-07-01
- organic matter digestibility
- crop quality
- continuous grazing
- stocking rate
- pastures
- rotational grazing
- digestibility
- crude protein
- cattle
- Texas
- plant litter
- forage
- Library Collection RecordAn inexpensive esophageal fistula sleeve and plug cannula was constructed using 38-mm diameter PVC pipe with a 4-mm wall, a Babcock float rod, and laboratory rubber stoppers. The cannulae are easily…Publication Date 1987-07-01
- plastic pipes
- fistulation
- saliva
- cannulas
- rumen contents
- esophagus
- cattle
- 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 RecordA study was conducted in southeastern Montana to determine the effects of federal range grazing on cattle ranch average variable operating costs per animal unit. Data were obtained through personal…Publication Date 1986-07-01
- variable costs
- grazing on public land
- surveys
- ranching
- economic analysis
- production costs
- cattle
- Montana
- rangelands
- Library Collection RecordA tubular esophageal cannula was developed for use with cattle during extrusa collections. The purposes of the cannula were to reduce contraction of the fistula while the plug was out and to keep the…Publication Date 1987-05-01
- cannulas
- cannulation
- design
- fistula
- extrusion
- contraction
- esophagus
- cattle
- Library Collection RecordAn automated range-animal data acquisition system (ARADS) has been developed to collect individual animal data without human intervention. Records include date, time, identification, live-weight,…Publication Date 1987-05-01
- data collection
- automation
- computer techniques
- water use
- identification
- body weight
- sampling
- cattle
- range management
- Montana
- rangelands
- Library Collection RecordA study was conducted in 1981 and 1982 at the Dickinson Experiment Station Ranch Headquarters in the mixed grass prairie of western North Dakota to determine seasonal and daily cattle diets under a…Publication Date 1986-11-01
- crude fiber
- Hesperostipa comata
- Agropyron
- nutrient requirements
- controlled grazing
- digestibility
- Pascopyrum smithii
- Bouteloua gracilis
- diets
- cattle
- botanical composition
- nutritive value
- feeding preferences
- North Dakota
- Library Collection RecordCattle impact on riparian areas is dependent upon both their behavior and utilization of streamside vegetation. Development of grazing strategies for riparian environments would be enhanced by an…Publication Date 1986-05-01
- rest
- seasonal behavior
- streams
- highlands
- riparian buffers
- stocking rate
- animal behavior
- feeding behavior
- cattle
- Montana
- grazing
- Library Collection RecordAn 8-year (1961-1968) study at the San Joaquin Experimental Range, in the Sierra Nevada foothills in central California, compared continuous, repeated seasonal, and rotated seasonal grazing on native…Publication Date 1986-11-01
- annuals
- grasslands
- liveweight gain
- responses
- grazing experiments
- reproductive performance
- California
- cattle
- rangelands
- grazing
- Library Collection RecordThe influence of crude terpenoid content on in vitro organic matter digestibility (IVOMD) was determined for basin big sagebrush (Artemisia tridentata Nutt. ssp. tridentata), Wyoming big sagebrush (A…Publication Date 1987-05-01
- terpenoids
- Artemisia tridentata
- Odocoileus hemionus
- sheep
- cattle
- in vitro digestibility
- Montana
- Library Collection RecordDefoliation of intermediate wheatgrass (Agropyron intermedium by cattle was examined under seasonal and short-duration grazing. Tiller height, number of green leaves per tiller, phenological status,…Publication Date 1987-05-01
- grazing time
- Elytrigia intermedia subsp. intermedia
- stocking rate
- Washington
- pastures
- rotational grazing
- tillering
- grazing behavior
- cattle
- defoliation
- Library Collection RecordManagement of sympatric ungulates on multiple use lands requires knowledge of how species exploit resources available to them. We examined seasonal food habits, dietary overlap, and dietary quality…Publication Date 1987-01-01
- horses
- ungulates
- sympatric species
- resource partitioning
- feces composition
- Antilocapra americana
- Oregon
- grazing intensity
- diet studies
- grazing behavior
- cattle
- range management
- seasonal variation
- nutritive value
- Library Collection RecordWe investigated effects of fall burning of gulf cordgrass (Spartina spartinae) rangeland on winter diets and liveweight gains of cattle on the Texas Coastal Prairie during 1979-1981. Gulf cordgrass…Publication Date 1986-05-01
- crude protein
- spartina spartinae
- autumn
- Nassella leucotricha
- liveweight gain
- grazing trials
- pastures
- prescribed burning
- digestibility
- diets
- cattle
- Texas
- forage
- feeding preferences
- Library Collection RecordA study was conducted in 1982 and 1983 at the Dickinson Experiment Station, North Dakota, in the mixed grass prairie to determine the effects of short duration grazing (SDG) and repeated seasonlong…Publication Date 1986-11-01
- grazing time
- stocking rate
- plant communities
- cattle
- prairies
- range management
- botanical composition
- rangelands
- grazing
- forage
- North Dakota
- Library Collection RecordDiet crude protein and in vitro organic matter digestibility (IVOMD) of diets of esophageally fistulated steers were compared for a pasture grazed June to September ("summer" pasture) and…Publication Date 1986-11-01
- Florida
- prescribed burning
- digestibility
- crude protein
- cattle
- range management
- seasonal variation
- nutritive value
- grazing
- forage
- Library Collection RecordNumber and kinds of cattle trails may have a dramatic impact on relative amount of bare soil and subsequently on amount and rate of soil erosion. The objective of this study was to quantify the…Publication Date 1986-09-01
- trails
- types
- quantitative analysis
- density
- soil erosion
- rotational grazing
- cattle
- Texas
- grazing
- Library Collection RecordNine transects, in areas with different histories of cattle grazing, were established along the Blitzen River in Oregon. Counts of birds and measurements of vegetation were made in the summers of…Publication Date 1986-05-01
- birds
- Salix
- population density
- habitats
- riparian buffers
- species
- Oregon
- cattle
- grazing
- Library Collection RecordInfiltration rate and sediment production were measured over a 2-year period on an intensive rotationally grazed pasture. Measurements were taken prior to the movement of livestock onto the pasture,…Publication Date 1986-11-01
- intensive livestock farming
- hydrology
- sediments
- pastures
- rotational grazing
- sheep
- goats
- cattle
- Texas
- seasonal variation
- rangelands
- grazing
- infiltration
- Library Collection RecordElk (Cervus elaphus) and mule deer (Odocoileus hemionus) distribution and use of habitats shared with cattle (Bos spp.) on a ponderosa pine (Pinus ponderosa)-bunchgrass range in central Arizona was…Publication Date 1987-01-01
- habitat selection
- Pinus ponderosa
- Cervus elaphus
- Odocoileus hemionus
- grazing behavior
- cattle
- range management
- rangelands
- geographical distribution
- Arizona
- Library Collection RecordA 5-year study was conducted to evaluate the influences of rest-rotation, deferred-rotation, and season-long grazing systems on cattle diet botanical composition and quality and weight gains on…Publication Date 1987-01-01
- Oregon
- rotational grazing
- nutrient contents of plants
- animal nutrition
- mountain grasslands
- ruminants
- performance testing
- grazing intensity
- diet studies
- cattle
- grazing
- Library Collection RecordThis study evaluated the effects of heavy forage use in a rest-rotation grazing system on the basal-area growth and frequency of occurrence of native bunchgrasses from 1975 to 1984. None of these…Publication Date 1987-03-01
- Elymus elymoides
- Festuca idahoensis
- Pseudoroegneria spicata
- basal area
- Achnatherum thurberianum
- crop-weed competition
- growth
- rotational grazing
- Artemisia tridentata
- cattle
- botanical composition
- Nevada
- grazing
- Library Collection RecordForty-eight stocker cattle enterprises on tobosagrass, bluestem, and lovegrass pastures being bought and sold at different points in the seasonal cattle price cycle were evaluated to determine the…Publication Date 1987-05-01
- marketing
- farm management
- profits
- grassland improvement
- Hilaria mutica
- Eragrostis curvula
- optimization
- animal production
- ranching
- Bothriochloa ischaemum
- cattle
- Texas
- range management
- seasonal variation
- Library Collection RecordTebuthiuron, [N-(5-1,1-dimethyethyl-l1,3,4-thiadiazol-2-yl)-N,N′-dimethylurea], a root-absorbed pelleted herbicide, was broadcast onto sand shinnery oak (Quercus havardii) rangeland in west Texas,…Publication Date 1986-09-01
- herbicide residues
- water content
- residual effects
- tebuthiuron
- sandy soils
- weed control
- Quercus havardii
- digestibility
- diet studies
- cattle
- Texas
- rangelands
- nutritive value
- grazing
- forage
- Library Collection RecordSoil bulk density measurements were taken from pastures used for winter feeding to determine the effects of different stocking rates on soil compaction and recovery. Samples were taken from paired…Publication Date 1987-01-01
- animal feeding
- physicochemical properties
- soil density
- reclamation
- pastures
- soil water content
- cattle
- rangelands
- soil compaction
- bulk density
- trampling
- Library Collection RecordAlthough there have been several reports on the food habits of domestic herbivores in various semiarid regions of the world, there has been no previous report on the partitioning of forage resources…Publication Date 1987-01-01
- camels
- forage selection
- pastoralism
- arid zones
- Kenya
- sheep
- diet studies
- goats
- grazing behavior
- cattle
- range management
- seasonal variation
- rangelands
- Library Collection RecordInfiltration rate and sediment production were measured for 2 years on 3 pastures from an intensive rotational grazing system. The pastures were 32, 24, and 16 ha in size. Stocking rate was held…Publication Date 1986-11-01
- soil water relations
- hydrology
- sediments
- stocking rate
- pastures
- rotational grazing
- sheep
- goats
- cattle
- Texas
- grazing
- infiltration
- Library Collection RecordTwo aerial applications of 2,4,5-T [2,4,5-trichlorophenoxy) acetic acid] were applied to 3,634 ha of mesquite (Prosopis glandulosa Torr. var. glandulosa) dunelands in southern New Mexico. Herbicide…Publication Date 1986-07-01
- Coleoptera
- duneland
- tetralopha euphenella
- soil biology
- aerial spraying
- herbicide residues
- birds
- ecosystems
- 2,4,5-T
- arid zones
- Prosopis glandulosa var. glandulosa
- weight
- mammals
- cattle
- rangelands
- New Mexico
- forage
- Library Collection RecordFive oesophageal-fistulated steers were used to determine the botanical composition, on a quantitative basis, of the diet of freeranging cattle on an alpine range in Victoria, Australia. The steers…Publication Date 1986-09-01
- quantitative analysis
- Victoria (Australia)
- alpine grasslands
- grazing experiments
- plant communities
- diet studies
- cattle
- range management
- botanical composition
- grazing
- Library Collection RecordInfiltration rate decreased significantly and sediment production increased significantly on a site with a silty clay surface soil devoid of vegetation following periodic trampling typical of…Publication Date 1986-11-01
- damage
- soil aggregates
- microrelief
- soil properties
- hydrology
- rotational grazing
- cattle
- Texas
- rangelands
- bulk density
- trampling
- soil water
- Library Collection RecordA real-time system for recording grazing behavior in the field is described. A NEC 8201a portable computer was programmed to allow the incidence, duration, and sequence of behaviors to be recorded.…Publication Date 1987-05-01
- computers
- portable instruments
- recording
- data collection
- computer techniques
- California
- grazing behavior
- cattle
- Library Collection RecordUtilization studies conducted on a high mountain range determined the quantity and timing of white locoweed (Oxytropis sericea Nutt.) consumption by cattle. Paired plots (one caged and one grazed)…Publication Date 1986-07-01
- toxins
- utilization
- consumption
- mountains
- Oxytropis
- grazing behavior
- cattle
- rangelands
- Utah
- forage
- Library Collection RecordBluebunch wheatgrass (Agropyron spicatum (Pursh) Scribn. & Smith) was clipped at 4 phenological stages to compare forage quality of subsequent regrowth relative to nondefoliated plants. Following…Publication Date 1986-03-01
- Pseudoroegneria spicata
- British Columbia
- spring
- regrowth
- nutrient contents of plants
- cattle
- range management
- phenology
- nutritive value
- defoliation
- grazing
- forage
- Library Collection RecordA cattle diet study was conducted in the northern Black Hills of South Dakota and Wyoming. Forty-eight plants were identified in cattle fecal material. Grasses in the feces averaged 54%, forbs 17%,…Publication Date 1985-09-01
- forests
- understory vegetation
- habits
- feeding
- South Dakota
- animal nutrition
- Wyoming
- cattle
- grazing
- Library Collection RecordInadequate data have existed concerning cattle preferences for fourwing saltbush [Atriplex canescens (Pursh) Nutt.] on ranges where it is dominant, and concerning composition of cattle diets on the…Publication Date 1985-09-01
- feeding habits
- grasslands
- Atriplex canescens
- animal nutrition
- cattle
- seasonal variation
- Colorado
- Library Collection RecordThis paper tests 3 predictions that stem from the hypothesis that Angus heifers avoid stepping on crested wheatgrass (Agropyron cristatum) tussocks because the tussocks present an uneven surface upon…Publication Date 1985-05-01
- Agropyron cristatum
- grazing behavior
- cattle
- trampling
- Library Collection RecordThe intensity and pattern of cattle use of small riparian meadows were studied by periodically sampling vegetative standing crop and by continuously monitoring meadows with time-lapse photography.…Publication Date 1985-05-01
- riparian buffers
- Malheur National Forest
- Oregon
- cattle
- temperature
- grazing
- Library Collection RecordThe effects of 4 stocking rates (1.2, 1.6, 2.4, and 4.8 AUM/ha) on cattle production were examined, over a 35-year period, on a Rough Fescue (Festuca scabrella Torr.) Grassland. Forage productivity…Publication Date 1986-03-01
- Festuca altaica
- grasslands
- liveweight gain
- grazing trials
- Alberta
- stocking rate
- cattle
- botanical composition
- grazing
- Library Collection RecordSeasonal diets of native Columbian black-tailed deer (Odocoileus hemionus columbianus) and exotic axis deer (Axis axis axis), fallow deer (Dama dama dama), and cattle (Bos taurus) on Point Reyes…Publication Date 1985-09-01
- coasts
- coastal plant communities
- feeding habits
- rumen contents
- California
- Cervidae
- competition
- cattle
- botanical composition
- rangelands
- grazing
Pagination
- First page
- Previous page
- …
- 3
- 4
- 5
- 6
- 7
- …
- Next page
- Last page