Rangeland Ecology & Management
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- Library Collection RecordIn recent times, pinyon (Pinus spp.)-juniper (Juniperus spp.) woodlands have expanded into large portions of the Southwest historically occupied by grassland vegetation. From 1997-1998, we studied…Publication Date 2001-05-01
- wild birds
- pinyon-juniper
- frequency
- grasslands
- species diversity
- ecological succession
- woodlands
- establishment
- botanical composition
- Pinus
- Juniperus
- Arizona
- Juniperus monosperma
- grasslands
- pinyon-juniper
- Arizona
- southwestern U.S.
- avian communities
- succession
- Library Collection RecordPrevious authors have described nesting habitat of the northern bobwhite (Colinus virginianus) throughout its range, but few have compared structural or compositional differences of vegetation…Publication Date 2001-05-01
- nests
- weather
- visibility
- habitat selection
- Colinus virginianus
- ground cover
- habitats
- predators
- reproductive performance
- vegetation
- woody plants
- Oklahoma
- botanical composition
- grasses
- bobwhite
- Colinus virginianus
- gallinaceous
- habitats
- northern
- quail
- upland game
- Library Collection RecordThe cover of native and non-native introduced plants was compared between seeded (reclaimed) ski runs and adjacent or nearby unseeded (control) areas at a managed ski area in northern Arizona to…Publication Date 2001-05-01
- sowing
- disturbed soils
- skiing
- topsoil
- soil degradation
- ground cover
- grasslands
- reclamation
- species diversity
- introduced species
- botanical composition
- Arizona
- disturbance
- reclamation
- ski runs
- non-native species
- richness
- 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 RecordAssessing vegetation status via remote sensing techniques using various vegetation indices has been successfully applied to semi-arid and arid environments. We tested the feasibility of applying such…Publication Date 1999-09-01
- Israel
- infrared imagery
- wavelengths
- equus hemionus
- visibility
- feral herds
- ground cover
- image analysis
- arid lands
- soil types
- remote sensing
- satellite imagery
- atmosphere
- equations
- dry seasons
- wet season
- vegetation
- seasonal variation
- grazing
- Library Collection RecordPrey selection by mountain lions (Puma concolor) in the Aravaipa-Klondyke area in southeastern Arizona was studied from February 1991 to September 1993. Overall diet as determined from frequency of…Publication Date 1999-05-01
- Puma concolor
- prey
- tayassu tajacu
- montane forests
- predator-prey relationships
- predation
- predator control
- semiarid grasslands
- population density
- calves
- diet
- Odocoileus
- seasonal variation
- Arizona
- Library Collection RecordThe effects of grazing, fertilizing, and seeding on persistence of herbaceous species was monitored by point quadrat about every second year from 1975 to 1989 in a low-fertility pasture in the aspen…Publication Date 1999-01-01
- change
- Medicago sativa
- Bromus inermis
- Festuca rubra
- grassland improvement
- sown grasslands
- ground cover
- Poa pratensis
- continuous grazing
- Saskatchewan
- rain
- pastures
- vegetation
- forbs
- rotational grazing
- botanical composition
- Library Collection RecordAn understanding of overstory-understory relationships in southwestern oak woodlands is important for predicting response of these systems to disturbance or manipulation. The objective of this study…Publication Date 1998-11-01
- Quercus emoryi
- Magnoliopsida
- C4 grasses
- C3 grasses
- understory
- woodland grasslands
- rain
- Poaceae
- biomass
- canopy
- grasses
- Arizona
- Library Collection RecordBurning of vegetation generally increases surface runoff and erosion and potentially can change the nutrient dynamics of an ecosystem with loss of nutrients. Nitrogen, phosphorus, and potassium…Publication Date 1999-11-01
- nitrogen
- runoff
- prescribed burning
- sandy loam soils
- potassium
- rainfall simulators
- gravelly soils
- phosphorus
- biomass
- losses from soil
- range management
- plant litter
- Arizona
- Library Collection RecordDrought is an ambiguous term, subject to expectation and the weight of emphasis on meteorological, agricultural, hydrological and socio-economic dimensions. Uncertainty associated with the…Publication Date 1999-09-01
- hydrologic data
- water holding capacity
- extensive livestock farming
- desertification
- subsidies
- risk reduction
- soil degradation
- crusts
- ground cover
- semiarid grasslands
- ranching
- soil erosion
- issues and policy
- stocking rate
- vegetation
- drought injury
- dry environmental conditions
- overgrazing
- drought
- range management
- Library Collection RecordWe studied the diets of desert mule deer (Odocoileus hemionus crooki Mearns) at 3 sites in Arizona and collated this information with that of previous diet studies of desert mule deer across their…Publication Date 1997-09-01
- odocoileus hemionus crooki
- xerophytes
- browse plants
- diet
- Odocoileus hemionus
- seasonal variation
- botanical composition
- Arizona
- 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 RecordState and transition (ST) descriptions of rangeland vegetation dynamics provide information on current perceptions of explicit causes of change in dominant vegetation. Structural attributes of ST…Publication Date 1997-07-01
- simulation models
- vegetation
- range management
- rangelands
- Library Collection RecordThe objectives of this study were to identify a Site Conservation Threshold, the point at which accelerated erosion occurs, and to examine the usefulness of the Water Erosion Prediction Project (WEPP…Publication Date 1996-05-01
- water erosion
- rill erosion
- ground cover
- semiarid grasslands
- highlands
- mathematical models
- loam soils
- clay soils
- range condition
- rain
- biomass
- sediment yield
- range management
- plant litter
- Arizona
- Library Collection RecordLehmann lovegrass (Eragrostis lehmanniana Nees), an introduced warm season grass, has invaded grasslands in southern Arizona, in many areas replacing the native warm-season grasses. A water balance…Publication Date 1994-09-01
- water binding capacity
- water content
- water balance
- evapotranspiration
- rain
- biomass
- Eragrostis lehmanniana
- introduced species
- Arizona
- soil water
- Library Collection RecordFew perennial legumes have been successfully introduced into western North American rangelands receiving less than 250 mm annual precipitation. Winter annual legumes in the genus Medicago (medics)…Publication Date 1993-01-01
- Medicago littoralis
- hard seeds
- medicago laciniata
- winter annuals
- Medicago polymorpha
- Medicago truncatula
- annuals
- seed banks
- arid zones
- persistence
- genotype
- drought tolerance
- stand establishment
- sowing rates
- precipitation
- semiarid zones
- rangelands
- Arizona
- Library Collection RecordOver the past century woody plants have increased in abundance on sites formerly occupied by grasslands in the Sonoran Desert. Woody plant invasion has been associated with a multitude of biological…Publication Date 1993-01-01
- desert rodents
- shrub invasion
- edaphic factors
- Acacia
- woody weeds
- sowing depth
- deserts
- weed biology
- Prosopis velutina
- seed dispersal
- grasslands
- seedling emergence
- invasion
- fires
- fire effects
- air temperature
- woody plants
- environmental factors
- sheep
- cattle
- seed germination
- establishment
- Arizona
- soil texture
- Library Collection RecordGreen herbaceous phytomass was measured in August 1987 in grassland and sagebrush-grassland communities of Yellowstone National Park and related to August 1987 Landsat MSS data. A linear model using…Publication Date 1993-03-01
- satellite surveys
- availability
- Landsat
- national parks
- satellite imagery
- vegetation
- Wyoming
- biomass
- rangelands
- forage
- Library Collection RecordFire on rangelands used as a management tool or as an unwanted wildfire removes vegetation cover. Vegetation cover is thought to be a dominate factor controlling surface runoff and erosion.…Publication Date 1992-09-01
- ground cover
- soil erosion
- spatial variation
- ground vegetation
- loam soils
- fires
- fire effects
- runoff
- prescribed burning
- sandy loam soils
- natural grasslands
- range management
- seasonal variation
- rangelands
- Arizona
- Library Collection RecordIn 1974 we selected 8 pairs of gully headcuts on the Santa Rita Experimental Range. Mesquite (Prosopis velutina Woot.) on the watershed of 1 headcut of each pair was killed with diesel oil. Densities…Publication Date 1993-03-01
- Prosopis velutina
- semiarid grasslands
- watersheds
- soil erosion
- brush control
- vegetation management
- rain
- runoff
- plant density
- losses from soil
- rangelands
- grasses
- Arizona
- Library Collection RecordLittle evidence has been found to relate fire intensity to herbaceous vegetation response. Our objective was to determine if components of post-fire herbaceous standing crop in a tallgrass prairie…Publication Date 1992-11-01
- canonical correlation
- fire behavior
- fire intensity
- grasslands
- fire ecology
- fires
- fire effects
- vegetation
- regrowth
- Oklahoma
- plant communities
- prairies
- rangelands
- grasses
- forage
- Library Collection RecordEditorial reply to "Viewpoint: sample adequacy for point analysis depends on the objectives," Journal of Range Management, vol. 45, no. 6, p. 595. This material was digitized as part of a…Publication Date 1992-11-01
- size
- public opinion
- mined soils
- ground cover
- reclamation
- statistical analysis
- vegetation
- sampling
- Library Collection RecordThe decision to use double sampling with a regression or ratio estimator is not a simple task. This study was conducted to determine whether a ratio or regression estimator should be used to estimate…Publication Date 1993-01-01
- Monte Carlo method
- bootstrap variance estimates
- jackknife variance estimates
- variance
- regression analysis
- estimation
- vegetation
- sampling
- Bouteloua gracilis
- biomass
- Library Collection RecordChanges in rangeland vegetation integrate the consequences of livestock grazing intensity and possible climate change, as well as other factors. Because vegetation changes tend to be very slow in dry…Publication Date 1992-11-01
- xerophytes
- Krascheninnikovia
- Hilaria
- change
- Hilaria jamesii
- eremosemium spinosa
- Achnatherum hymenoides
- ecological succession
- Chrysothamnus viscidiflorus
- vegetation
- Artemisia tridentata
- plant communities
- rangelands
- Utah
- livestock
- grazing
- Library Collection RecordPopular assumptions about ecosystem stability and the delicate balance of nature are found lacking when examined in terms of paleoecological, historical and current biochronological, and…Publication Date 1992-07-01
- biogeography
- extinction
- Larrea tridentata
- Weeds
- ecosystems
- biological control
- evolution
- paleoecology
- climax communities
- vegetation management
- plant ecology
- population dynamics
- vegetation
- botanical composition
- Library Collection RecordEditorial on "An evaluation of sample adequacy for point analysis of ground cover," Journal of Range Management, vol. 43, p. 545-549. This material was digitized as part of a cooperative…Publication Date 1992-11-01
- size
- public opinion
- mined soils
- ground cover
- reclamation
- statistical analysis
- vegetation
- sampling
- 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 RecordWe studied use of pastures and habitats in relation to moderate cattle grazing for 19 radio-collared desert mule deer (Odocoileus hemionus crooki) in a southeastern Arizona grass-shrubland. For each…Publication Date 1991-09-01
- odocoileus hemionus crooki
- xeroriparian habitats
- home range
- semi-desert scrub
- habitat selection
- habitats
- pastures
- Odocoileus hemionus
- cattle
- grazing
- Arizona
- Library Collection RecordEven though the Wilderness Act of 1964 provided for continuation of livestock grazing after wilderness designation, there has been continued debate about the Forest Service's implementation of…Publication Date 1991-09-01
- land policy
- permits
- animal unit month
- coronado national forest
- Tonto National Forest
- USDA
- wilderness
- national forests
- multiple land use
- grazing intensity
- range management
- rangelands
- grazing
- Arizona
- Library Collection RecordSuccessful germination and establishment of grass seedlings from surface-sown seeds requires a microsite which provides adequate soil water and temperature conditions, among other species-specific…Publication Date 1991-05-01
- Bouteloua curtipendula
- hybrids
- broadcasting
- soil morphological features
- Eragrostis
- Panicum antidotale
- seedbeds
- Eragrostis trichophora
- surface roughness
- safesites
- microenvironments
- sown grasslands
- seedling emergence
- soil water content
- land restoration
- Eragrostis lehmanniana
- Arizona
- Library Collection RecordLaboratory tests are often conducted to determine seed germination responses to temperatures for seedbed ecology interpretations and revegetation seeding rate calculations. To determine the utility…Publication Date 1992-05-01
- Eragrostis trichophora
- Eragrostis intermedia
- hybrids
- Eragrostis
- seedbeds
- soil temperature
- diurnal variation
- seedling emergence
- stand establishment
- soil water content
- land restoration
- seed germination
- Eragrostis lehmanniana
- Arizona
- 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 RecordPerennial plants collected from 5 north-central Arizona semiarid locations were assayed for tebuthiuron [N-5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl-N,N'-dimethylurea] and its metabolites…Publication Date 1991-05-01
- long term experiments
- herbicide residues
- metabolites
- Bouteloua eriopoda
- Bouteloua curtipendula
- tebuthiuron
- Poaceae
- Bouteloua gracilis
- shrubs
- semiarid zones
- application rates
- rangelands
- Arizona
- forage
- Library Collection RecordDissatisfaction persists with current approaches to range condition and trend assessment. Sometimes assessed condition does not truly represent the past or the potential of range. One of the likely…Publication Date 1991-09-01
- ordination
- site factors
- classification
- plant ecology
- ecological succession
- vegetation
- environmental factors
- range management
- rangelands
- Library Collection RecordPonderosa pine (Pinus ponderosa Laws.) overstory-forage understory relationships were studied on the Kaibab Plateau of northern Arizona to evaluate how well forage (graminoid, forb, and current year…Publication Date 1992-05-01
- stand density
- stand structure
- understory
- mathematical models
- prediction
- indexes
- Pinus ponderosa
- regression analysis
- crop production
- canopy
- Arizona
- forage
- Library Collection RecordThe dry-weight rank technique has been used to measure vegetation in various habitats but has not been evaluated in desert shrub habitats. We sampled browse, forb, and grass in the palo-verde (…Publication Date 1991-07-01
- Sonoran Desert
- ranking
- xerophytes
- mountains
- deserts
- semi-desert scrub
- browse
- measurements
- plant ecology
- sampling
- slopes
- grasses
- Arizona
- forage
- dry matter
- 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 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 RecordCreosotebush (Larrea tridentata [Sesse & Moc. ex DC.] Cov) and other shrubs have spread into semidesert grasslands of the southwestern United States and northern Mexico; and as creosotebush…Publication Date 1990-01-01
- Condalia
- Zinnia
- parthenium incanum
- land imprinting
- railing
- acacia constricta
- cassia wisleizeni
- condalia ericoides
- zinnia pumila
- Acacia
- plowing
- Larrea tridentata
- manual weed control
- Flourensia
- Flourensia cernua
- pesticide application
- Prosopis velutina
- Prosopis glandulosa
- tebuthiuron
- brush control
- Cassia
- Mexico
- range management
- Arizona
- Library Collection RecordCattle trampling has been recommended to bury seeds and encourage seedling establishment but has not been compared with traditional seedbed preparation techniques. We compared seedling emergence of…Publication Date 1991-03-01
- land imprinting
- plowing
- buried seeds
- seedbed preparation
- Bouteloua curtipendula
- hybrids
- Eragrostis
- Panicum antidotale
- Eragrostis trichophora
- seedling emergence
- seeds
- land restoration
- cattle
- Eragrostis lehmanniana
- trampling
- Arizona
- Library Collection RecordLocation of seeds in the seedbed may affect germination and seedling establishment of range grasses. Our objective was to determine the effects of trampling by livestock and mechanical seedbed…Publication Date 1991-03-01
- Eragrostis trichophora
- land imprinting
- plowing
- buried seeds
- seedbed preparation
- Bouteloua curtipendula
- hybrids
- Eragrostis
- Panicum antidotale
- seedling emergence
- rain
- seeds
- environmental factors
- cattle
- Eragrostis lehmanniana
- trampling
- Arizona
- Library Collection RecordUtilizing source data for annual herbage production which had been obtained through repeated measurements, though not necessarily taken in each year, in 2 Arizona ponderosa pine (Pinus ponderosa)…Publication Date 1990-01-01
- forest ecology
- watersheds
- understory
- Pinus ponderosa
- regression analysis
- growth rate
- plant communities
- canopy
- Arizona
- forage
- Library Collection RecordJustification for controlling honey mesquite (Prosopis glandulosa Torr. var. glandulosa) on rangelands has been traditionally related to enhanced livestock production from increased herbage…Publication Date 1991-03-01
- net primary production
- water yield
- Bouteloua curtipendula
- Nassella leucotricha
- Prosopis glandulosa var. glandulosa
- brush control
- leaf area index
- pastures
- vegetation
- growth rate
- biomass production
- Texas
- range management
- forage
- Library Collection RecordThe measured runoff from a contour-ripped rangeland watershed is compared with hypothetical runoff based on KINEROS model simulations assuming that the watershed had not been treated. The results…Publication Date 1990-11-01
- ripping
- kinematics
- kineros model
- simulation models
- hydrology
- arid zones
- watersheds
- mathematical models
- runoff
- range management
- rangelands
- Arizona
- Library Collection RecordThe key to managing Arizona chaparral depends on creating and maintaining brush-free or savanna-like habitats. Brush control using fire, chemicals, and mechanical methods has been tested previously;…Publication Date 1991-03-01
- chaparral
- chaparral soils
- Quercus turbinella
- manual weed control
- soil density
- biological control
- controlled grazing
- brush control
- soil fertility
- stocking rate
- vegetation
- regrowth
- grazing intensity
- goats
- range management
- browsing
- grazing
- Arizona
- Library Collection RecordLehmann lovegrass (Eragrostis lehmanniana Nees), a perennial bunchgrass from southern Africa, has recently replaced native grasses on 200,000 ha in southeastern Arizona. Hence the need to determine…Publication Date 1990-07-01
- range management
- biomass accumulation
- phenology
- climatic factors
- plant litter
- seasonal variation
- crop yield
- Eragrostis lehmanniana
- introduced species
- water relations
- live biomass
- dead biomass
- grazing
- Arizona
- Library Collection RecordJunipers (Juniperus spp.) and pinyons (pinus edulis Engelm.) are reinfesting areas from which they have been removed and are encroaching into other areas. Controlling these trees while they are small…Publication Date 1990-05-01
- pesticide application
- Pinus edulis
- soil classification
- tebuthiuron
- brush control
- picloram
- range management
- Juniperus
- New Mexico
- Arizona
- Library Collection RecordLittle has been done to evaluate the mid-winter crude protein, phosphorus, and in vitro digestibility of subspecies and accessions of rubber rabbitbrush (Chrysothamnus nauseosus ssp.) For those few…Publication Date 1990-03-01
- geographical races
- variation
- Chrysothamnus nauseosus
- winter
- phosphorus
- crude protein
- California
- in vitro digestibility
- Nevada
- nutritive value
- Utah
- Arizona
- forage
- 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 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
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