Rangeland Ecology & Management
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Displaying 101 - 150 of 578 results
- Library Collection RecordShrub fecundity is critical to long term persistence of fourwing saltbush (Atriplex canescens (Pursh) Nutt.) populations at our research site on the shortgrass steppe in Colorado. We conducted a 2-…Publication Date 2003-01-01
- utricle fill
- sex phenotype
- sex ratio
- sex expression
- flowering
- crown
- seed set
- steppes
- Atriplex canescens
- dioecy
- grazing intensity
- browsing damage
- cattle
- Colorado
- Atriplex canescens
- sex change
- nonflowering
- utricle fill
- cattle browsing
- Library Collection RecordElk sedge (Carex geyeri Boott) is one of the most important livestock and big game forages in many areas of the western U.S. It is one of the most prominent forage species in the diets of cattle and…Publication Date 2003-01-01
- Physocarpus opulifolius
- date
- Festuca
- Carex geyeri
- Carex
- protein content
- Pinus ponderosa
- fiber content
- Pseudotsuga menziesii
- chemical composition
- Oregon
- crude protein
- plant communities
- phenology
- seasonal variation
- botanical composition
- nutritive value
- forage
- Carex geyeri
- cattle
- graminoids
- nutrition
- phenology
- season
- Library Collection RecordFood habits of plains vizcacha (Lagostomus maximus), greater rhea (Rhea americana) and cattle (Bos taurus) in the Parana? River Delta, Argentina, were studied over 2 years using microhistological…Publication Date 2003-01-01
- Rhea
- Prosopis nigra
- Rhea americana
- ecological competition
- Lagostomus maximus
- vertebrate pests
- forage legumes
- wetlands
- feces composition
- forbs
- diet
- shrubs
- cattle
- seasonal variation
- Argentina
- botanical composition
- pasture plants
- grazing
- grasses
- diet composition
- herbivory
- Lagostomus maximus
- Paraná River Delta
- Rhea americana
- Library Collection RecordSummary * 1The success of large-scale cattle ranching in African savanna vegetation has often been limited by problems of bush encroachment and disease (in particular trypanosomiasis spread by tsetse…Publication Date 2003
- Bush encroachment
- East Africa
- grazing patterns
- Landsat TM
- remote sensing
- Vegetation classification
- indigenous encroaching species
- shrub encroachment
- cattle
- savanna
- commercial agriculture
- vegetation dynamics
- grazing
- mapping
- Landsat images
- Economic Aspects
- Africa
- Library Collection RecordWe constructed a simple simulation model (SESS) of the dynamics of forage growth and standing crop and cattle production to evaluate the ecological sustainability of management alternatives for…Publication Date 2003
- models
- simulation
- Grazinglands
- rangelands
- Semi-arid zones
- ANP
- sustainability
- range condition
- grazing
- Cattle reproduction
- forage quality
- cattle
- management
- plant production
- animal production
- soils
- rainfall
- rangeland condition
- Africa
- Library Collection RecordEast Africa contains areas with some of the greatest large mammal biodiversity on the planet. These areas are key natural resources for the economic development of the region. They are also key areas…Publication Date 2003
- Agro-pastoralism
- savanna
- simulation
- Dietary energy
- cash flow
- Ngorongoro Conservation Area
- pastoralism
- cattle
- game farming
- biodiversity
- socio-economic aspects
- ecosystem dynamics
- modelling
- household income studies
- Africa
- Library Collection RecordThe estimated number of tsessebes on a cattle and wildlife ranch in Zimbabwe decreased during 1995-1999 from 2209 to 435 animals. Existing records of rainfall, cattle management, wildlife numbers,…Publication Date 2003
- Tsessebe antelope
- population decline
- Damaliscus lunatus
- competition
- drought
- cattle
- vegetation dynamics
- forage quality
- Forage Quantity
- management
- Africa
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2002-12-01
- resource allocation
- natural history
- resource management
- British Columbia
- forage
- monitoring
- forest ecology
- wildlife
- habitats
- cattle
- rangelands
- range management
- grazing
- multiple land use
- Library Collection RecordKnowledge of livestock population dynamics is important to better understand functional attributes and development potential of pastoral production systems. With a focus on the Borana system of semi-…Publication Date 2002-09-01
- pastoralism
- Ethiopia
- risk assessment
- land use
- population dynamics
- mortality
- rain
- stocking rate
- cattle
- drought
- Borana
- pastoralism
- drought
- equilibrial/non-equilibrial systems
- risk management
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2002-08-01
- controlled grazing
- cattle
- rotational grazing
- prescribed burning
- grazing intensity
- stocking rate
- literature reviews
- brush control
- grazing trials
- economic analysis
- veld
- Zimbabwe
- Library Collection RecordAnecdotal evidence suggests that cattle fed alfalfa hay during the winter are inclined to graze locoweed on spring range. Two studies were conducted to compare the influence of feeding alfalfa hay vs…Publication Date 2002-07-01
- indolizidine alkaloids
- alfalfa
- alfalfa hay
- swainsonine
- Oxytropis sericea
- winter
- spring
- selective grazing
- beef cows
- hay
- diets
- prairies
- New Mexico
- Colorado
- feeding preferences
- poisonous plants
- Oxytropis sericea
- alfalfa hay
- grass hay
- cattle
- poisonous plants
- Library Collection RecordPoisonous plants that impair normal reproductive functions in livestock include Veratrum californicum Durand, lupines, ponderosa pine (Pinus ponderosa Dougl.), broom snakeweed (Gutierrezia sarothrae…Publication Date 2002-05-01
- teratogens
- abortion
- mechanism of action
- Oxytropis
- Astragalus
- alkaloids
- Lupinus
- controlled grazing
- Pinus ponderosa
- reproductive performance
- species differences
- cattle
- range management
- literature reviews
- poisonous plants
- poisonous plants
- lupine
- locoweed
- ponderosa pine
- reproduction
- management
- Library Collection RecordSnakeweeds (broom, Gutierrezia sarothrae (Pursh) Britt Rusby); and threadleaf, G. microcephala (DC.) Gray) fall into that class of poisonous weeds that seldom cause direct livestock losses because…Publication Date 2002-05-01
- adverse effects
- Gutierrezia
- rats
- rabbits
- gutierrezia microcephala
- carrying capacity
- poisonous weeds
- range condition
- palatability
- herbicides
- weed control
- Gutierrezia sarothrae
- prescribed burning
- plant communities
- sheep
- cattle
- range management
- plant competition
- New Mexico
- poisonous plants
- range weed
- livestock grazing
- broom snakeweed (Gutierrezia sarothrae (Pursh) Britt & Rusby)
- threadleaf snakeweed (Gutierrezia microcephala DC.) Gray)
- Library Collection RecordIn recent years livestock death losses from poisonous plants in the western United States have averaged about 2-3% annually. A review of 36 grazing studies in North America shows poisonous plant…Publication Date 2002-05-01
- Oxytropis
- deserts
- avoidance conditioning
- Oxytropis sericea
- controlled grazing
- poisonous weeds
- woodland grasslands
- Western United States
- grasslands
- continuous grazing
- stocking rate
- range management
- livestock
- Delphinium
- cattle
- sheep
- goats
- grazing
- poisonous plants
- economics
- Library Collection RecordThe influence of night grazing on feeding behavior, nutrition and performance of cattle was studied. Twenty-four steers weighing 367 kg (SD = 76) grazed either from 0900 to 1900 (day grazers), 2100…Publication Date 2002-03-01
- Niger
- rumination
- physical activity
- weight losses
- fiber content
- dry seasons
- diet
- steers
- digestibility
- cattle
- nitrogen content
- seasonal variation
- grazing
- feed intake
- cattle
- forage intake
- night grazing
- Sahel
- Library Collection RecordStockpiling forage is a commonly used method to extend the grazing season in the southern U.S.A. However, there is little data on stockpiled forage in the upper Midwest. This study was conducted to…Publication Date 2002-01-01
- stock piling
- frost
- feed requirements
- Phalaris arundinacea
- Phleum pratense
- Wisconsin
- Elytrigia repens
- harvest date
- Bromus inermis
- Dactylis glomerata
- Festuca arundinacea
- sown grasslands
- fiber content
- nitrogen fertilizers
- winter
- crude protein
- cattle
- in vitro digestibility
- application rates
- grazing
- forage
- stock piling
- forage quality
- winter grazing
- cool-season grasses
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2001-10-01
- rail transportation
- packing houses
- commodity markets
- livestock and meat industry
- trade in animals
- Kansas City, Missouri
- agricultural prices
- Missouri
- cattle
- history
- United States
- 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 RecordFrothy bloat in cattle is a serious problem and is difficult to manage under field conditions as it progresses rapidly from early signs of distension to acute distress. Scientists at Agriculture and…Publication Date 2001-07-01
- rumen
- bloat
- disease control
- polymers
- dosage
- feed additives
- risk reduction
- alfalfa
- developmental stages
- cultivars
- water
- incidence
- digestibility
- feed supplements
- cattle
- grazing
- pasture management
- frothy bloat
- legumes
- feed additives
- Library Collection RecordPopulations of an introduced woody weed, prickly acacia (Acacia nilotica (L.) Delile ssp. indica (Benth.) Brenan syn. Acacia arabica (Lam.) Willd. ssp. indica Benth.), were surveyed at 4 sites in…Publication Date 2001-07-01
- regeneration
- Weeds
- quarantine
- Queensland
- seed dispersal
- highlands
- rain
- seedlings
- pastures
- selective grazing
- woody plants
- rotational grazing
- sheep
- plant density
- introduced species
- browsing
- grazing
- plant height
- Life-stage profiles
- rainfall
- population dynamics
- regeneration
- cattle
- woody weeds
- Library Collection RecordAccurately identifying the botanical composition of free-ranging animal diets remains a challenge. Currently accepted procedures are time consuming, many requiring painstaking sample preparation…Publication Date 2001-07-01
- fluorescence
- lambs
- wavelengths
- methodology
- evaluation
- light intensity
- feces composition
- feces
- statistical analysis
- selective grazing
- feeds
- botanical composition
- forage
- feed intake
- cattle
- botanical composition
- fluorescence
- xenon fluorometry
- fecal fluorophores
- Library Collection RecordStrategic supplement placement has been shown to be an effective tool to lure cattle to underutilized rangeland. The goal of this study was to determine where cattle grazed when supplement was placed…Publication Date 2001-07-01
- molasses
- global positioning systems
- sloping land
- spatial variation
- water availability
- pastures
- feed supplements
- spatial distribution
- cattle
- Montana
- rangelands
- grazing
- grasses
- distribution
- grazing
- behavior
- utilization
- Library Collection RecordA classification of dietary structural types that represents different arrangements of forage classes is proposed. It may be especially useful for interpreting and comparing herbivore diets from…Publication Date 2001-07-01
- Lama guanicoe
- feces composition
- pastures
- selective grazing
- species differences
- vegetation
- feeds
- digestibility
- sheep
- goats
- cattle
- seasonal variation
- Argentina
- botanical composition
- forage
- diet botanical composition
- conceptualization
- forage classes
- microhistological analysis
- multivariate analysis
- similarity of diets
- Library Collection Record
124 A Balancing Act
The Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2001-06-01- Lagopus lagopus
- wildlife
- habitats
- prairies
- South Dakota
- cattle
- endangered species
- Montana
- rotational grazing
- rangelands
- range management
- wildlife management
- Library Collection RecordA disclimax stand of Canadian bluejoint (Calamagrostis canadensis (Michx.) Beauv.) was heavily grazed by cattle and horses for 4 years to weaken the grass's competition with hardwoods important…Publication Date 2001-05-01
- Calamagrostis canadensis
- Epilobium angustifolium
- rhizomes
- plant development
- wildlife
- viability
- competitive ability
- carbohydrates
- browse plants
- seed weight
- seed productivity
- shoots
- Alaska
- horses
- weight
- woody plants
- digestibility
- cattle
- nitrogen content
- biomass
- phenology
- plant competition
- grazing
- trampling
- chemical constituents of plants
- Calamagrostis canadensis
- overstocking
- forage quality
- boreal forests
- Library Collection RecordWhite (Oxytropis sericea Nutt. in T. G.) and Lambert (O. lambertii var. biglovii Pursh) locoweed grow adjacent to each other on the foothills of the Rocky Mountains from southeastern Wyoming to…Publication Date 2001-05-01
- flowering date
- Oxytropis lambertii
- pods
- plant development
- developmental stages
- Weeds
- alkaloids
- Infestation
- Oxytropis sericea
- selective grazing
- cattle
- phenology
- New Mexico
- feeding preferences
- poisonous plants
- Oxytropis lambertii
- Oxytropis sericea
- poisonous plants
- cattle grazing
- swainsonine
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2001-04-01
- rangelands
- cattle
- Southwestern United States
- Quercus havardii
- poisoning
- Library Collection RecordTo quantify effects of forage canopy properties, soil surface relief, and hill slope on the hydrologic properties of the soil in a New Zealand hill land pasture, duplicate plots (15 x 3 m) with 3…Publication Date 2001-03-01
- New Zealand
- surface roughness
- water erosion
- ground cover
- slope
- stocking rate
- sandy loam soils
- cattle
- canopy
- infiltration
- trampling
- plant height
- soil water
- Hoof damage
- canopy
- erosion
- surface roughness
- topography
- Library Collection RecordDrought is the single most important environmental factor that causes cattle population fluctuations in northern Kenya. The way the grazing lands and animal populations are affected by drought…Publication Date 2001
- arid zone
- cattle mortality
- drought management policy
- herd growth
- Kenya
- multiple droughts
- Obbu Booran
- Pastoralist
- recovery
- drought
- cattle
- grasslands
- animal production
- Africa
- Library Collection RecordSeveral of the problems associated with grazing animals in extensive settings are related to their uneven patterns of use across the landscape. After fencing, water and salt are two of the most…Publication Date 2001
- Global positioning system
- Activities
- grazing time
- Resting time
- livestock management
- rangelands
- cattle
- grazing
- management
- Africa
- Library Collection RecordStubble height, a measure of the herbaceous vegetation remaining after grazing, has been widely used in recent years to gage the impacts of grazing use in riparian areas. Stubble height is a short-…Publication Date 2000-11-01
- riparian grasslands
- Salix
- streams
- stubble
- ecotones
- height
- riparian buffers
- regrowth
- grazing intensity
- browsing damage
- cattle
- biomass
- range management
- literature reviews
- trampling
- grazing
- livestock management
- streambanks
- trampling
- utilization
- willow
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2000-10-01
- ranching
- cattle
- ranch hands
- Hawaii
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2000-10-01
- Hawaii
- animal husbandry
- cattle
- ranching
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2000-10-01
- Hawaii
- cattle
- history
- Library Collection RecordFlorida native range is grazed in winter and cows are moved to bahiagrass (Paspalum notatum Flugge) pasture in March for breeding and calf rearing. Winter weight loss of cows is a major problem, and…Publication Date 2000-07-01
- weaning
- pregnancy rate
- breeding season
- weaning weight
- sown grasslands
- weight losses
- Paspalum notatum
- liveweight gain
- calves
- body weight
- rain
- Florida
- pastures
- spring
- beef cows
- summer
- grazing
- native forage
- cattle
- reproduction
- weight change
- management
- Library Collection RecordWe evaluated reproduction and recruitment of the Columbia spotted frog (Rana luteiventris Thompson) in 70 ponds used by beef cattle and in 57 ponds not used by beef cattle in northeastern Oregon. No…Publication Date 2000-05-01
- aquatic plants
- surface area
- Rana
- algae and seaweeds
- dissolved oxygen
- rana luteiventris
- fish
- ponds
- recruitment
- depth
- habitats
- ova
- Oregon
- cattle
- grazing
- altitude
- livestock grazing
- northeastern Oregon
- Rana luteiventris Thompson
- Library Collection RecordAccurate measures of the relative resource impacts from elk (Cervus elaphus) and cattle (Bos taurus and B. indicus) improve land management planning wherever these species cohabitate. Comparisons of…Publication Date 2000-05-01
- fences
- area
- mixed grazing
- experimental design
- Cervus elaphus
- pastures
- animal behavior
- grazing intensity
- cattle
- wildlife management
- range management
- Montana
- Cervus elaphus
- exclosure site
- livestock-wildlife relations
- wild ungulates
- Library Collection RecordTo examine the effect of grazing and potential interactions among grazing and biological traits of plants, we studied patch dynamics, seed production, and seedling survival in a Mediterranean…Publication Date 2000-05-01
- annuals
- recruitment
- Spain
- Phalaris aquatica
- perennials
- mortality
- rain
- seedlings
- stocking rate
- sward destruction
- tillering
- grazing intensity
- overgrazing
- cattle
- drought
- botanical composition
- Mediterranean grassland
- overgrazing
- perennial grasses
- plant recruitment
- seedling survival
- summer-drought
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2000-04-01
- cattle
- grazing intensity
- geographic information systems
- slope
- selective grazing
- water availability
- Library Collection RecordThree watersheds at the University of California's Sierra Foothill Research and Extension Center (SFREC), Marysville, Calif. were selected to study cattle grazing effects on the vegetation…Publication Date 2000-03-01
- springs (water)
- ground cover
- highlands
- species diversity
- riparian buffers
- body weight
- plant communities
- California
- cattle
- plant litter
- botanical composition
- grazing
- dry matter
- Library Collection RecordIndependent digestion trials with 5 forages were conducted to compare n-alkane with indigestible acid-detergent fiber (IADF) as internal markers to predict in vivo dry matter digestibility (…Publication Date 2000-03-01
- digestibility markers
- alkanes
- indigestible acid-detergent fiber
- alfalfa
- alfalfa hay
- prediction
- feces composition
- fiber content
- hay
- digestibility
- cattle
- in vitro digestibility
- grasses
- forage
- maturity stage
- indigestible
- ADF
- hydrocarbon
- beef cattle
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 2000-02-01
- biogeochemical cycles
- desertification
- biographies
- decision making
- biodiversity
- cattle
- range management
- wildlife management
- Library Collection RecordWe evaluated the species composition of soil seed banks from 9 farms (36 pastures total) located in the northeast United States. Our objective was to quantify the soil seed bank composition of…Publication Date 2000-01-01
- Northeastern United States
- Trifolium repens
- seed banks
- Poa pratensis
- cutting
- rotational grazing
- cattle
- seed germination
- biomass
- botanical composition
- Library Collection RecordDuring the last decade a [']new rangeland science 039; has emerged. One of the tenets of the new science is that pastoralists should not adhere to a single conservative stocking rate, but rather…Publication Date 2000
- Capital costs
- cattle
- carrying capacity
- Environmental costs
- modelling
- rangeland
- southern Africa
- stocking rate
- socio-economic aspects
- economics
- management
- Africa
- Library Collection RecordThe Rangelands archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from…Publication Date 1999-12-01
- liveweight gain
- mortality
- lambing rate
- lambs
- fleece weight
- biomass production
- weaning weight
- income
- range condition
- forage
- rain
- Arizona
- Utah
- sheep
- stocking rate
- grazing intensity
- costs and returns
- cattle
- New Mexico
- botanical composition
- rangelands
- range management
- Library Collection RecordGrazing strategies should be designed to maintain vigorous populations of plant species critical for livestock production, wildlife habitat, and/or ecosystem functions. Treatments consisting of 5- to…Publication Date 1999-09-01
- early summer
- timing
- Schizachyrium scoparium
- Calamovilfa longifolia
- Andropogon hallii
- sandy soils
- mortality
- stocking rate
- selective grazing
- Nebraska
- rotational grazing
- summer
- tillers
- grazing intensity
- cattle
- botanical composition
- defoliation
- 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 RecordCattle (Bos taurus) and vizcacha (Lagostomus maximus) diets were examined monthly in the semiarid caldénal in central Argentina. Cow-calf operations are the most important economic activities within…Publication Date 1999-07-01
- free range husbandry
- diversity
- Lagostomus maximus
- ambient temperature
- feces composition
- rain
- species differences
- grazing intensity
- diets
- cattle
- seasonal variation
- Argentina
- botanical composition
- grasses
- forage
- feeding preferences
- Library Collection RecordThe effects of cattle grazing were evaluated on range dynamics of the Caatinga which is a deciduous dry woodland, covering most of the semi-arid Brazilian Northeast. Three stocking rates (SR) were…Publication Date 1999-05-01
- caatinga
- continuous grazing
- mortality
- rain
- stocking rate
- species differences
- woody plants
- rotational grazing
- shrubs
- semiarid zones
- Brazil
- cattle
- plant density
- drought
- botanical composition
- canopy
- plant height
- Library Collection RecordA 10-year riparian grazing study was conducted on a cold, mountain meadow riparian system in central Idaho in response to cattle grazing-salmonid fisheries conflicts. Six pastures were established…Publication Date 1999-05-01
- seral stages
- stream erosion
- Salix
- streams
- riparian buffers
- Idaho
- forbs
- grazing intensity
- shrubs
- cattle
- plant litter
- botanical composition
- canopy
- grasses