Rangeland Ecology & Management
Get reliable science
Toggle Search
Result Type
Collection
Keywords
Document Type
Displaying 151 - 200 of 1064 results
- Library Collection RecordWhite-tailed deer (Odocoileus virginianus Zimm.) appear to concentrate foraging activity along the perimeters of warm-season food plots. Because of this, we tested the hypothesis that (1) providing…Publication Date 1999-01-01
- Lablab purpureus
- foraging
- mortality
- Odocoileus virginianus
- semiarid zones
- spatial distribution
- Texas
- biomass
- feeding preferences
- Library Collection RecordConcentration and composition of monoterpenoids in plant tissue affects a variety of environmental and ecological issues such as plant defenses, plant classification and phytotoxicity. Developing the…Publication Date 1998-09-01
- distillation
- hexane
- gas chromatography
- steam distallation
- extraction
- Juniperus ashei
- Juniperus pinchotii
- monoterpenoids
- conifer needles
- duration
- Texas
- Library Collection RecordChinese tallow (Sapium sebiferum L. Roxb.) was introduced to the United States from China in the mid to late 1800s and has since naturalized throughout much of the southern U. S. Tallow continues to…Publication Date 1999-09-01
- Triadica sebifera
- timing
- cultural control
- application timing
- roots
- carbohydrates
- herbicides
- weed control
- chemical control
- Texas
- introduced species
- chemical constituents of plants
- Library Collection RecordWarm-season perennial bunchgrasses frequently are used for hay and grazing in central Texas. We compared 6 alternative grasses with 2 more commonly grown species ['Ermelo' weeping lovegrass…Publication Date 1999-03-01
- Pennisetum orientale
- Pennisetum flaccidum
- Eragrostis superba
- Digitaria eriantha
- Panicum coloratum
- Eragrostis curvula
- lignin
- protein content
- Bothriochloa bladhii
- yields
- cultivars
- fiber content
- weight
- species differences
- crude protein
- tillering
- tillers
- Cenchrus ciliaris
- Texas
- dry matter
- Library Collection RecordDense stands of honey mesquite (Prosopis glandulosa Torr. var. glandulosa) negatively impact livestock handling and herbaceus forage production; however, very little information is available on the…Publication Date 1997-09-01
- thinning
- agroforestry
- stand density
- Prosopis glandulosa var. glandulosa
- multiple land use
- rain
- biomass production
- semiarid zones
- Texas
- biomass
- Library Collection RecordGeneralized linear mixed models were used to obtain best linear unbiased predictions (BLUP's) of herbivore preferences for range plant species from expert knowledge contained in range site…Publication Date 1998-01-01
- deer
- resource utilization
- Edwards Plateau
- Cyperaceae
- mixed grazing
- interspecific competition
- legumes
- browse plants
- best linear unbiased prediction
- linear models
- forbs
- shrubs
- sheep
- goats
- cattle
- Texas
- grasses
- feeding preferences
- Library Collection RecordAshe juniper (Junius ashei, Buckholz) is increasing on most sites across the Edwards Plateau of Texas. It is the purpose of this investigation to document the influence of Ashe juniper tree size on…Publication Date 1997-09-01
- browse line
- light penetration
- size
- Juniperus ashei
- understory
- Odocoileus virginianus
- stocking rate
- goats
- Texas
- plant litter
- botanical composition
- canopy
- browsing
- grasses
- Library Collection RecordResults from 6 years of seeding trials in the Chihuahuan Desert indicated that establishment of introduced and native grass species responded directly to soil moisture at the 1.22 cm (0.5 in) depth,…Publication Date 1997-03-01
- forage production
- net present value
- valuation
- microclimate
- sowing
- seedbed preparation
- risk
- soil temperature
- economic analysis
- production costs
- arid lands
- stand establishment
- crop production
- Bouteloua gracilis
- Texas
- range management
- Eragrostis lehmanniana
- introduced species
- rangelands
- soil water
- Library Collection RecordSeed dormancy can hinder stand establishment and delay progress of genetic and plant improvement studies. Our objective was to evaluate the effect of 2 chemical seed treatments on germination and on…Publication Date 1997-03-01
- ethylene chlorohydrin
- Eragrostis superba
- sodium hypochlorite
- Panicum coloratum
- seed treatments
- Eragrostis curvula
- seedling emergence
- duration
- seedlings
- weight
- Texas
- seed germination
- seed dormancy
- sulfuric acid
- Library Collection RecordExpert judgment, standardized in a meaningful format, can be used to identify research/survey needs and to characterize areas of (dis)agreement in species responses, associated traits, and factors…Publication Date 1998-05-01
- experts
- probability analysis
- plants
- prescribed burning
- grazing intensity
- Texas
- range management
- Library Collection RecordWe studied resource partitioning between cattle and deer (Odocoileus virginianus Boddaert) within replicated treatments of continuous and short-duration grazing at heavy and moderate stocking rates.…Publication Date 1997-11-01
- interspecific competition
- browse plants
- continuous grazing
- Odocoileus virginianus
- stocking rate
- species differences
- forbs
- rotational grazing
- cattle
- Texas
- seasonal variation
- botanical composition
- grasses
- feeding preferences
- Library Collection RecordWe documented vegetation dynamics (April 1986-July 1989) as part of a larger study to understand botanical composition and nutritional components of cattle and deer diets under 2 grazing systems (…Publication Date 1997-11-01
- continuous grazing
- rain
- Odocoileus virginianus
- stocking rate
- forbs
- rotational grazing
- grazing intensity
- cattle
- Texas
- biomass
- seasonal variation
- botanical composition
- grasses
- feeding preferences
- Library Collection RecordThe objective of this study was to determine how rangeland hydrology of oak, juniper, bunchgrass and shortgrass vegetation types is altered by fire. The research was conducted at the Sonora…Publication Date 1997-03-01
- bunchgrass
- shortgrasses
- Aristida
- soil aggregates
- Juniperus ashei
- soil organic matter
- water yield
- Quercus virginiana
- woodland grasslands
- runoff
- prescribed burning
- sheep
- goats
- Texas
- sediment yield
- plant litter
- rangelands
- grazing
- infiltration
- grasses
- bulk density
- Library Collection RecordWe measured the impact of prescribed summer and winter burns on vegetation characteristics and spring abundance of birds in a Spartina/Paspalum grassland at Matagorda Island National Wildlife Refuge…Publication Date 1997-07-01
- species abundance
- wild birds
- Spartina
- environmental impact
- Paspalum
- grasslands
- vegetation management
- populations
- prescribed burning
- Texas
- Library Collection RecordThe effects of herbicide applications to kill honey mesquite (Prosopis glandulosa Torr.) on community diversity are poorly documented. Our objective was to test the hypothesis that herbicide…Publication Date 1997-03-01
- nontarget organisms
- rodents
- biodiversity
- wild birds
- Prosopis glandulosa
- triclopyr
- species diversity
- rain
- vegetation
- Texas
- canopy
- Library Collection RecordIn developing an improved understanding of the dynamics of understory plant composition and productivity in Coastal Plain forest ecosystems, we examined the influence of site preparation and…Publication Date 1998-01-01
- chopping
- Arkansas
- subsoil
- site preparation
- windrowing
- cultivation
- interspecific competition
- Pinus taeda
- phosphorus fertilizers
- 2,4-D
- Paspalum
- legumes
- understory
- ecological succession
- forest plantations
- Louisiana
- prescribed burning
- forbs
- biomass production
- shrubs
- Texas
- Pinus
- canopy
- grasses
- forage
- soil texture
- Library Collection RecordThis 10-year study was designed to evaluate vegetation response to increasing stocking rates under rotational stocking (3 days graze, 51 days rest) and long-term rest. The 4 stocking rate treatments…Publication Date 1997-07-01
- stocking rate
- rotational grazing
- Texas
- range management
- botanical composition
- livestock
- Library Collection RecordEstimates of carrying capacity for herbivores are useful for determining the relative value of different ranges. We compared 6 estimates of nutritional carrying capacity for white-tailed deer (…Publication Date 1997-01-01
- Zanthoxylum fagara
- digestible energy
- costs and returns
- grassland improvement
- semiarid grasslands
- carrying capacity
- estimation
- body weight
- Odocoileus virginianus
- natural grasslands
- shrubs
- nitrogen content
- Texas
- forage
- dry matter
- feed intake
- Library Collection RecordTo understand how different techniques might affect diet estimates for cattle, the esophageal-fistula and bite-count techniques were compared using trained cattle. For the Texas Coastal Bend, bite-…Publication Date 1995-11-01
- biting rates
- fistula
- estimation
- esophagus
- diet
- cattle
- Texas
- botanical composition
- grazing
- Library Collection RecordAn inexpensive method of tree felling is needed to precondition dense stands of mature junipers (Juniperus spp.) for the effective use of prescribed burning. The purpose of this research was to…Publication Date 1996-03-01
- felling
- drawbar power
- striking height
- Juniperus ashei
- Juniperus pinchotii
- height
- brush control
- species differences
- prescribed burning
- Oklahoma
- Texas
- Library Collection RecordThe objective of this 2 year study was to identify the optimal height to graze Old World bluestem pasture in the Southern Great Plains under continuous stocking during the growing season. We…Publication Date 1996-11-01
- performance
- evaporation
- leaves
- roots
- stems
- liveweight gain
- continuous grazing
- ambient temperature
- Bothriochloa ischaemum
- rain
- steers
- crude protein
- grazing intensity
- Texas
- biomass
- forage
- plant height
- Library Collection RecordLittle information is available comparing animal performance or stocking stability for different wheat (Triticum aestivum L.) cultivars. Wheat is annually planted on 10 million ha in the Southern…Publication Date 1996-03-01
- performance
- Triticum aestivum
- liveweight gain
- cultivars
- rain
- stocking rate
- steers
- Texas
- biomass
- seasonal variation
- grazing
- beef cattle
- forage
- Library Collection RecordReinvasion of mechanically disturbed juniper communities is possible through contributions from the soil seedbank, seed rain, and the juvenile seedling bank. We compared spatial distribution of the…Publication Date 1995-11-01
- Juniperus ashei
- woody weeds
- seed banks
- viability
- invasion
- seedlings
- spatial distribution
- Texas
- seed germination
- Library Collection RecordFecal seeding by livestock may be an effective, low-cost means of rangeland restoration. We compared recruitment of switchgrass (Panicum virgatum L.) from seed fed to cattle and deposited in dung to…Publication Date 1996-07-01
- recruitment
- grassland improvement
- seed dispersal
- sowing rates
- cattle manure
- Panicum virgatum
- Texas
- seed germination
- plant height
- Library Collection RecordLeaf and mast material was collected from mesquite (Prosopis glandulosa Torr.), huisache (Acacia smallii Isely), granjeno (Celtis pallida Torr.), and hog plum (Colubrina texana (T.& G.) Gray) on…Publication Date 1995-11-01
- Celtis pallida
- Acacia smallii
- Colubrina
- Colubrina texana
- Acacia
- plowing
- woody weeds
- deep tillage
- Prosopis glandulosa
- roots
- browse plants
- brush control
- species diversity
- in vitro digestibility
- nitrogen content
- Texas
- Library Collection RecordAngora and Spanish goats (Capra bircus) were exposed to ashe (Juniperus ashei Buchholz) female, ashe male, redberry (Juniperus pinchotti Sudw.) female and redberry male branches in cafeteria style…Publication Date 1996-01-01
- goat breeds
- essential oils
- Juniperus ashei
- Juniperus pinchotii
- volatile compounds
- angora
- brush control
- gender differences
- species differences
- breed differences
- goats
- Texas
- seasonal variation
- Library Collection RecordThe USDA-Water Erosion Prediction Project (WEPP) is a new technology based on the fundamentals of hydrology, soil physics, plant science, hydraulics, and erosion mechanics. WEPP hydrology includes…Publication Date 1995-11-01
- green and ampt equation
- soil physics
- water erosion
- Prosopis glandulosa
- mathematical models
- ground vegetation
- prediction
- computer simulation
- watershed hydrology
- runoff
- soil water content
- Texas
- rangelands
- canopy
- Library Collection RecordGulf cordgrass (Spartina spartinae [Trin.] Merr.) is a highly productive bunchgrass that dominates thousands of hectares of marshlands along the Gulf coast. Herbage yield, protein content, and…Publication Date 1994-01-01
- total nonstructural carbohydrates
- spartina spartinae
- coasts
- marshes
- wetlands
- forage crops
- clipping
- stubble
- carbohydrates
- protein content
- Texas
- range management
- crop yield
- plant height
- Library Collection RecordThere has been recent concern regarding the effects of range management practices on biodiversity. Our objective was to determine the long-term (> 30 years) effects of chaining, and chaining…Publication Date 1994-11-01
- plowing
- root plowing
- chaining
- habitats
- brush control
- species diversity
- woody plants
- Texas
- range management
- Library Collection RecordThis paper analyzes subjective perceptions of Texas ranchers concerning management decision-making to obtain insight for improving technology transfer. Correlations among variables from a 1990 mail…Publication Date 1994-09-01
- reliability
- farm surveys
- data analysis
- grazing tenancy
- brush control
- weed control
- stocking rate
- Texas
- range management
- Library Collection RecordThis research was designed to identify relationships between T4464 buffelgrass (Cenchrus ciliaris L.) survival and climatic and soil characteristics. At 167 buffelgrass seeding sites in North America…Publication Date 1995-01-01
- edaphic factors
- plant introduction
- night temperature
- prediction
- Mexico
- mortality
- equations
- rain
- Kenya
- environmental factors
- calcium
- Cenchrus ciliaris
- Texas
- establishment
- climatic factors
- soil texture
- Library Collection RecordBasal cover, density, biomass, and species richness of the understory were measured in concentric zones from the stem bases of large redberry juniper (Juniperus pinchotii Sudw.) trees to 6 m beyond…Publication Date 1995-03-01
- textural soil types
- clay loam soils
- Juniperus pinchotii
- soil depth
- plant interaction
- understory
- species diversity
- ecological succession
- forbs
- shrubs
- Texas
- biomass
- canopy
- grasses
- Library Collection RecordBased on a 1990 mail survey of Texas beef cattle producers owning and/or operating rangeland, 54% are older than 56 years, but nearly 95% had completed a high school education. Seventy-five percent…Publication Date 1994-09-01
- farmers
- grazing tenancy
- non-farm income
- regional surveys
- farmers' income
- brush control
- vegetation types
- weed control
- beef production
- Texas
- rangelands
- Library Collection RecordA field study was established in 1986 to evaluate selective-placement burial as an alternative technique for on-site disposal of drilling fluids in arid and semiarid areas. Soluble salt and heavy…Publication Date 1994-11-01
- heavy metals
- industrial wastes
- waste disposal sites
- soil pollution
- Buchloe dactyloides
- electrical conductivity
- Atriplex canescens
- chemical composition
- Texas
- canopy
- Library Collection RecordDecisions made by Texas ranchers over a 10 year period (1980-1990) concerning stocking rate levels were dominated by perceptions about weather. A regression model explained 64% of the variability in…Publication Date 1994-09-01
- farmers' income
- weather
- decision making
- rain
- stocking rate
- beef production
- Texas
- range management
- grazing
- Library Collection RecordWe studied the effects of vegetation characteristics in southern Texas on site selection by mature, male white-tailed deer (Odocoileus virginianus Raf.). Thirteen, radio-collared animals were…Publication Date 1994-05-01
- males
- tracking
- telemetry
- habitat selection
- site factors
- vegetation types
- species diversity
- Odocoileus virginianus
- woody plants
- Texas
- canopy
- Library Collection RecordUnderstanding hydrologic processes is essential to determine if water yield augmentation is possible through vegetation manipulation. Nine large non-weighing lysimeters, each 35 m2, were installed on…Publication Date 1995-01-01
- water yield
- water balance
- evapotranspiration
- Prosopis glandulosa var. glandulosa
- rain
- runoff
- Texas
- drought
- rangelands
- grasses
- soil water
- Library Collection RecordA study was conducted in the South Texas Plains to contrast the short-term impacts of short duration grazing (SDG) and deferred-rotation grazing (DG) systems on habitats for northern bobwhites (…Publication Date 1992-11-01
- Colinus virginianus
- population density
- habitats
- semiarid zones
- Texas
- wildlife management
- rangelands
- grazing
- Library Collection RecordResearch was conducted at the Sonora Research Station during a 4-year period (1984 to 1988) to measure differences in herbaceous vegetation response between two 7-pasture 1-herd grazing systems.…Publication Date 1993-03-01
- ewes
- dry matter accumulation
- grazing trials
- ecological succession
- stocking rate
- pastures
- heifers
- growth rate
- grazing intensity
- Texas
- botanical composition
- grazing
- forage
- Library Collection RecordPrevious studies of fee hunting have focused only on fee-hunting ranches with little consideration given to ranches that choose not to operate fee-hunting enterprises. Our study compares feed-hunting…Publication Date 1993-01-01
- farm income
- enterprise
- game farming
- costs and returns
- ranching
- economic analysis
- hunting
- multiple land use
- livestock production
- Texas
- wildlife management
- rangelands
- Library Collection RecordHoney mesquite (Prosopis glandulosa Torr.) occurs on a variety of sites varying in soil depth and moisture availability. The objective of this study was to compare water use by honey mesquite on…Publication Date 1992-07-01
- highlands
- Prosopis glandulosa
- watersheds
- stomatal conductance
- water table
- phreatophytes
- lowlands
- site factors
- water availability
- riparian buffers
- transpiration
- water-use efficiency
- soil water content
- leaf water potential
- Texas
- seasonal variation
- Library Collection RecordThe long-term effects of root plowing in plant communities in south Texas are not clearly understood. Our objective was to compare plant species composition and diversity on root-plowed rangelands…Publication Date 1993-07-01
- deep tillage
- browse plants
- species diversity
- Odocoileus virginianus
- woody plants
- Texas
- range management
- canopy
- Library Collection RecordNutritional quality of range plants eaten by white-tailed deer (Odocoileus virginianus Raf.) in southern Texas is lowest during summer and fall. Nutritional quality of shrub regrowth is typically…Publication Date 1992-11-01
- pruning
- roller chopping
- Acacia rigidula
- leaves
- Acacia berlandieri
- stems
- browse plants
- protein content
- Odocoileus virginianus
- regrowth
- crude protein
- shrubs
- in vitro digestibility
- Texas
- seasonal variation
- rangelands
- nutritive value
- chemical constituents of plants
- Library Collection RecordImproving wildlife habitat through the introduction of nutritious forage species is a management tool that may be used to increase target populations such as deer. By increasing deer numbers the…Publication Date 1993-01-01
- Onobrychis viciifolia
- leucaena refusa
- engelmannia pinnatifida
- Leucaena
- Asteraceae
- Trifolium subterraneum
- Medicago sativa
- Desmanthus illinoensis
- browse plants
- protein content
- Desmanthus
- Atriplex canescens
- crude protein
- biomass production
- Odocoileus
- Texas
- wildlife management
- prairies
- rangelands
- nutritive value
- forage
- chemical constituents of plants
- Library Collection RecordMechanical top growth removal of certain shrub species stimulates sprouting and temporarily increases nutritional quality, availability, and yield of browse. We determined the effects of (1) roller…Publication Date 1992-09-01
- roller chopping
- Acacia rigidula
- Aloysia lycioides
- discing
- browse
- Acacia berlandieri
- habitats
- browse plants
- vegetation management
- Odocoileus virginianus
- shrubs
- Texas
- wildlife management
- range management
- nutritive value
- Library Collection RecordA spatial simulation model was developed to examine the community-level relationships between woody overstory and herbaceous understory. The influences of individual trees on herbaceous understory…Publication Date 1992-01-01
- Eucalyptus
- eucalyptus crebra
- Australia
- simulation models
- Prosopis glandulosa
- competitive ability
- understory
- mathematical models
- biomass production
- plant communities
- Library Collection RecordStudies were made at 2 rangeland areas in south Texas to measure canopy cover and distribution with an airborne laser profiler. In a comparison of laser and ground measurements of canopy cover on the…Publication Date 1992-03-01
- lasers
- evapotranspiration
- measurements
- remote sensing
- vegetation
- shrubs
- spatial distribution
- Texas
- rangelands
- Library Collection RecordA technique for recording time-temperature curves within field-scale range fires was accomplished using a commercially available data logger capable of rapidly reading large numbers of thermocouples…Publication Date 1992-03-01
- thermocouples
- fire behavior
- measurements
- fires
- prescribed burning
- Texas
- temperature
- rangelands
- Library Collection RecordA study was conducted from May 1986 to June 1987 with white-tailed deer (Odocoileus virginianus) to determine seasonal nutritive value and nutrient digestibilities of guajillo (Acacia berlandieri)…Publication Date 1991-11-01
- Acacia berlandieri
- Odocoileus virginianus
- digestibility
- Texas
- nutritive value
- Library Collection RecordHoney mesquite (Prosopis glandulosa Torr. var. glandulosa) stem flow was measured on days with contrasting environmental conditions during the 1989 growing season in Texas. Midday stem flow varied…Publication Date 1992-01-01
- evapotranspiration
- sap flow
- diurnal variation
- Prosopis glandulosa var. glandulosa
- watersheds
- transpiration
- environmental factors
- Texas
- rangelands
Pagination
- First page
- Previous page
- …
- 2
- 3
- 4
- 5
- 6
- …
- Next page
- Last page