Rangeland Ecology & Management
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- Library Collection RecordMany nonnative invasive grasses alter fire regimes to their own benefit and the detriment of native organisms. In southern Arizona the nonnative Lehmann lovegrass (Eragrostis lehmanniana Nees)…Publication Date 2011-07-01
- Arizona
- Eragrostis lehmanniana
- invasive grasses
- Lehmann lovegrass
- livestock grazing
- native plants
- Library Collection RecordAZ DroughtWatch is a tool designed to collect, summarize and display timely observations of drought impacts across Arizona. The tool was developed to support drought monitoring efforts spearheaded…Publication Date 2008
- drought
- monitoring
- Arizona
- Library Collection RecordThe Southwest Climate Change Network is designed to foster dialog and exchange of reliable science and policy information among climate experts and other scientists, natural resource managers,…Publication Date 2009
- climate change
- climate data
- Impact assessment
- Arizona
- Nevada
- New Mexico
- Texas
- United States
- Utah
- Library Collection RecordThe purpose of the project, for which this web site is one of the primary manifestations, is to bring to the public the knowledge and data gleaned from the Arizona Watershed Program. Our goal is to…
- watershed management
- arid zones
- semiarid zones
- management techniques
- Arizona
- United States
- Library Collection RecordFor more than 150 years, ranchers in the West have gained insight about natural systems through daily interaction and management of landscapes, but this knowledge has never been systematically…Publication Date 2009-11-01
- adoption of innovation
- knowledge networks
- local knowledge
- management
- ranchers
- rangeland health
- semistructured interviews
- Library Collection RecordArid and semiarid rangelands often behave unpredictably in response to management actions and environmental stressors, making it difficult for ranchers to manage for long-term sustainability. State-…Publication Date 2009-11-01
- local knowledge
- management
- ranchers
- semistructured interviews
- state-and-transition models
- vegetation changes
- Library Collection RecordArizona law prohibits the sale of agricultural, vegetable or ornamental plant seed containing restricted noxious-weed seeds, singly in excess of limitations, as stated per pound, or in combination…
- Arizona
- invasive weeds
- Library Collection RecordThis guide gives a brief description of a selection of non-native species, useful for identification.Publication Date 2009
- invasive species
- identification
- management techniques
- Arizona
- Library Collection RecordThe purpose of this guide is to describe the various organizations working in invasive plant management, compare existing approaches, and identify opportunities for cooperation and coordination that…Publication Date 2001
- Arizona
- California
- Mexico
- Sonoran Desert
- Library Collection RecordThe purpose of this guide is to describe the various organizations working in invasive plant management, compare existing approaches, and identify opportunities for cooperation and coordination that…Publication Date 2001
- Arizona
- California
- Mexico
- Sonoran Desert
- Library Collection RecordContains weed species profiles and lists, the Southwest Exotic Mapping Program, the Alien Plant Ranking system and the Arizona Wildlands Invasive Plant Database.
- invasive species
- mapping
- noxious plants
- Arizona
- Southwest
- species lists
- United States
- Library Collection RecordInvasion of rangeland by exotic forage species threatens ecosystem structure and function and can cause catastrophic economic losses. Herbicide treatments often are the focus of management efforts to…Publication Date 2007-05-01
- Chinese bush cloer
- disturbance ecology
- fire ecology
- grazing
- management
- heterogeneity
- herbivory
- invasion
- macro-ecology
- Sericea lespedeza
- Library Collection RecordMapping the distribution and abundance of invasive plants is a high priority, but establishing cost-effective and practical techniques at appropriate scales remains elusive. Mesquite is a highly…Publication Date 2007-07-01
- aerial surveys
- Australia
- invasive plants
- mapping
- monitoring costs
- remote sensing
- visual estimation techniques
- Library Collection RecordTwo experiments evaluated effects of weaning date on cow body condition score (BCS) and calf growth. In Experiment 1, 134 March-calving cows were used in a four-year experiment. Calves were weaned 18…Publication Date 2007-11-01
- beef cows
- systems
- production
- management
- Library Collection RecordInformation about national policies that FWS has issued to promote efficiency and nationwide consistency in implementing the ESA to protect and recover listed species of plants and animals native to…
- Laws
- management
- United States
- Library Collection RecordOptimum habitat condition is a concept typically used for wildlife rather than livestock. The definition for optimal livestock habitat will vary with management objectives. Abiotic factors, such as…Publication Date 2005-03-01
- distribution
- grazing
- foraging
- behavioral mechanisms
- management
- Library Collection RecordAn article about a new report from Utah State University titled "Wolves in Utah: An Analysis of Potential Impacts and Recommendations for Management" which debunks much of the criticism…Publication Date 2002
- wolves
- management
- Impact assessment
- Utah
- Library Collection RecordMonitoring processes that affect plant population dynamics and determine community structure is central in forest restoration ecology. To study effects of mule deer (Odocoileus hemionus) and elk (…Publication Date 2003-07-01
- artificial regeneration
- flowering
- Cervus elaphus nelsoni
- Ceanothus
- Ceanothus fendleri
- forest thinning
- understory
- plant morphology
- Pinus ponderosa
- branches
- Odocoileus hemionus
- biomass
- browsing
- Arizona
- ecological restoration
- Ceanothus fendleri
- stem morphology
- flower production
- Cervus elaphus
- Odocoileus hemionus
- Library Collection RecordPress release about the Center for Biological Diversity's suit regarding two Gila River fish species.Publication Date 2004
- fish
- Arizona
- endangered species
- Endangered Species Act
- Gila River
- Library Collection RecordUnderstanding landscape conversion is vital for assessing the impacts of ecological and anthropogenic disturbances at regional and global scales. Since rangelands cover nearly half of the global land…Publication Date 2003-09-01
- environmental degradation
- land use change
- anthropogenic activities
- vegetation cover
- urbanization
- shrublands
- landscape ecology
- Prosopis
- image analysis
- urban areas
- rural areas
- remote sensing
- vegetation types
- semiarid zones
- botanical composition
- rangelands
- grasses
- Arizona
- land conversion
- landscape indices
- fire suppression
- rangeland maintenance
- semiarid
- grasslands
- Library Collection RecordA growth function for range calves is estimated using a polynomial function of calf age that accounts for weather variation, sex, prior calf weights relative to a norm, and a compensatory gain factor…Publication Date 2003-09-01
- slaughter weight
- herd size
- cow-calf operations
- birth weight
- geographical variation
- carrying capacity
- production costs
- liveweight gain
- calves
- gender differences
- Hereford
- profitability
- feed supplements
- precipitation
- grazing
- Arizona
- beef cattle
- optimal calf sale weight
- livestock supplementation effects
- livestock marketing
- polynomial age growth function
- rainfall
- Library Collection RecordMontezuma quail (Cyrtonyx montezumae Vigors) are closely associated with oak woodlands (Quercus spp.). Livestock grazing and cover availability are considered important factors affecting Montezuma…Publication Date 2004-09-01
- Arizona
- Cyrtonyx montezumae
- grazing
- habitat selection
- livestock
- Madrean evergreen woodland
- Montezuma quail
- Library Collection Record
223 Rangeland Health
This NRCS bulletin discusses ways to measure rangeland health and the need to develop indicators based on sound science, yet understandable to the public.- management
- standards
- invasive species
- soil aggregates
- bare ground
- Natural Resources Conservation Service
- NRCS
- rangeland health
- United States
- Library Collection RecordThis study identifies the characteristics and attitudes of public land ranchers. Data from a random survey of 2,000 U.S. Forest Service and Bureau of Land Management grazing permittees (53.5%…Publication Date 2002-01-01
- socioeconomic status
- cultural values
- intensification
- ranges
- farm income
- grazing tenancy
- livestock numbers
- management
- farm size
- public domain
- ranching
- farmers' attitudes
- Western United States
- demography
- grazing intensity
- sheep
- beef cattle
- grazing fees
- grazing reduction
- grazing season
- public land property
- 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 RecordThe Walker Basin Allotment grazing system in central Arizona is designed to allocate resource use under elk (Cervus elaphus L.) and cattle (Bos taurus L.) grazing. The grazing system was designed to…Publication Date 2002-07-01
- feeding habits
- stubble
- topography
- woodland grasslands
- rotational grazing
- Pascopyrum smithii
- Cervus elaphus canadensis
- wildlife management
- canopy
- grazing
- Arizona
- beef cattle
- plant height
- Arizona
- deferred grazing
- paired-plot
- rest rotation
- stubble height
- western wheatgrass
- Library Collection RecordOutlines a number of the issues raised with regards to the Sonoran Desert Conservation Plan.
- endangered species
- urban development
- Arizona
- conservation
- Southern Arizona
- Tucson
- Library Collection RecordCovers the decisions of the Board of Supervisors with regards to urban development into desert grasslands.Publication Date 2000
- urban development
- urban planning
- Arizona
- desert grasslands
- Southern Arizona
- Sprawl
- Tucson
- Library Collection RecordCriticisms against the Sonoran Desert Conservation Plan.
- land conservation
- urban planning
- endangered species
- Arizona
- Sonoran Desert
- Southern Arizona
- Tucson
- Library Collection RecordA 2-year field experiment was undertaken to quantify the interacting effects of a late-spring prescribed burn and summer rainfall on seasonal runoff and erosion in a southern Arizona grassland. Six…Publication Date 2003-01-01
- Lycurus
- perennial bunchgrasses
- soil water movement
- Muhlenbergia
- soil density
- Eragrostis
- Bouteloua
- water erosion
- semiarid grasslands
- rain
- runoff
- prescribed burning
- rainfall simulators
- plant communities
- sediment yield
- grasses
- bulk density
- Arizona
- Arizona
- sediment yield
- summer rainfall
- Library Collection RecordDetails of Sonoran Desert Conservation Plan's focus areas.Publication Date 2000
- Altar Valley
- Arizona
- Pima County
- Sonoran Desert
- Tucson
- Library Collection RecordPeriodic summer rainstorms in some semi-arid regions result in variable soil moisture and differential establishment of seeded species. A 2-year study investigated soil water effects on germination…Publication Date 2003-01-01
- Muhlenbergia porteri
- Bothriochloa barbinodis
- drying front
- choice of species
- Leptochloa dubia
- Eragrostis intermedia
- Leptochloa
- revegetation plants
- Digitaria californica
- adventitious roots
- recruitment
- Bouteloua curtipendula
- Eragrostis
- semiarid grasslands
- seedling emergence
- drought tolerance
- rain
- species differences
- soil water content
- summer
- seed germination
- Eragrostis lehmanniana
- Arizona
- warm season
- desert grasslands
- rangeland revegetation
- drought tolerance
- Bouteloua curtipendula
- Bothriochloa barbinodis
- Leptochloa dubia
- Digitaria californica
- Muhlenbergia porteri
- Eragrostis lehmanniana
- Eragrostis intermedia
- Eragrostis lehanniana X tricophera
- Library Collection RecordProtection of 70,000 acres of state land holding proposed.Publication Date 2000
- land conservation
- land use
- State land
- Arizona
- Pima County
- Tucson
- Library Collection RecordFormer Attorney General Grant Woods led the creation of a petition to restrict urban growth.
- land use planning
- urban development
- Arizona
- Sprawl
- Tucson
- Library Collection RecordWildlife water developments have been constructed and maintained throughout the arid western United States to benefit big game and upland gamebird populations. There is debate, however, over possible…Publication Date 2000-05-01
- drinkers
- birds of prey
- water resources
- game birds
- coyotes
- predator-prey relationships
- wildlife management
- Arizona
- carnivores
- desert ecology
- raptors
- predator-prey relationships
- ungulates
- wildlife management
- Library Collection RecordDiscusses a proposal to limit urban growth and development.Publication Date 1998
- Arizona
- Pima County
- Sprawl
- Library Collection RecordThis paper reports on the results of a 3-year field study of the effects of spring/summer burning and cattle grazing on wintering sparrows in the grasslands of southeastern Arizona. The effects of…Publication Date 2000-07-01
- ammodramus bairdii
- ammodramus savannarum ammolegus
- aimophila cassinnii
- passerculus sandwichensis
- wild birds
- pooecetes gramineus
- prescribed burning
- grazing intensity
- wildlife management
- grazing
- Arizona
- beef cattle
- birds
- conservation
- bird-banding
- 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 RecordThe objective of this study was to provide a tool for maintaining a high grazing efficiency. In a rotational grazing system, the residual sward height does not provide enough information in advance…Publication Date 2000-07-01
- France
- assessment
- ewes
- heat sums
- dairy cows
- nitrogen balance
- volume determination
- controlled grazing
- stocking rate
- rotational grazing
- grazing intensity
- biomass
- plant height
- herbage height
- nitrogen
- stocking rate
- management
- dairy farms
- Library Collection RecordRobust needlegrass (Achnatherum robustum [Vasey] Barkw. = Stipa robusta [Vasey] Scribn.) is a high-biomass rangeland species that is adapted to warmer temperatures and matures later than most cool-…Publication Date 2000-07-01
- New Mexico
- Arizona
- Colorado
- beef cattle
- forage
- Stipa
- dry matter
- feed intake
- feeding preferences
- plant height
- zero grazing
- Elytrigia elongata
- Acremonium
- endophytes
- Leymus chinensis
- ergot alkaloids
- ergometrine
- fungi
- roadside plants
- green fodders
- lysergic acid amide
- Stipa robusta
- Achnatherum robustum
- Acremonium
- ergonovine
- lysergic acid amide
- narcosis
- Neotyphodium
- sleepygrass
- Stipa robusta
- Library Collection RecordForage use data can help rangeland and wildlife managers make informed decisions. However, managers need to know if forage use techniques that are commonly used to estimate ungulate herbivory under…Publication Date 2000-09-01
- experimental plots
- height-weight curve methods
- paired-plot method
- growth curve
- regression analysis
- equations
- Cervus elaphus
- selective grazing
- Pascopyrum smithii
- biomass
- range management
- beef cattle
- forage
- plant height
- Arizona
- height-weight
- herbivory
- paired-plot
- stubble height
- Library Collection RecordFrequent and intense defoliation of grasses has been associated with the evolution of "grazing morphotypes" that exhibit a variety of vegetative traits correlated with improved grazing…Publication Date 2000-09-01
- apomixis
- selection pressure
- Bouteloua curtipendula
- inflorescences
- plant morphology
- seed productivity
- genetic effects
- grazing
- Arizona
- Bouteloua
- defoliation tolerance
- evolution
- grazing resistance
- Library Collection RecordRanchers and enviromentalists team up to agrue for the promotion of ranching to prevent further urban sprawl.Publication Date 1999
- ranching
- urban development
- land conservation
- Arizona
- open space
- Sprawl
- Library Collection RecordDetails the award of the MacArthur prize to a conservation-minded rancher near Douglas, Arizona.Publication Date 1998
- land conservation
- ranching
- Arizona
- Library Collection RecordThe BLM moves ahead with a land swap to increase the size of Saguaro National Park.
- national parks
- land use
- Arizona
- Saguaro National Park
- Tucson
- Library Collection RecordHundreds of grazing leases voided in 11 National Forests in Arizona and New Mexico.
- grazing management
- Arizona
- grazing leases
- National Forest
- New Mexico
- public land
- 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 RecordForest Service injunctions related to the protection of endangered species put pressure on logging industry.Publication Date 1997
- logging
- endangered species
- Arizona
- Forest Service
- 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 RecordNorthern Spotted Owl's protection leads to logging halt.Publication Date 1997
- endangered species
- logging
- Arizona
- National Forest
- New Mexico
- Northern Spotted Owl
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