Rangeland Ecology & Management
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- Library Collection RecordA study examining the composition and dynamics of the soil seedbank was conducted at two locations in central Queensland between December 2007 and May 2009. These two grassland communities were…Publication Date 2017
- Biological invasion
- grasslands
- parthenium weed
- plant diversity
- Library Collection RecordFire is a natural process in grasslands that maintains an open canopy and creates variable vegetative structure and composition over time. Although there is a wealth of knowledge on plant and avian…Publication Date 2017
- burning
- disturbance
- grasslands
- insect
- invertebrates
- predictor traits
- Library Collection RecordGrassland bird species are declining more quickly than birds of any other biome in North America, but effects of the most widespread use of native mixed-grass prairies, livestock grazing, on nest…Publication Date 2016
- chestnut-collared longspur
- grasslands
- Sprague's pipit
- stocking rate
- vesper sparrow
- Library Collection RecordGrassland bird species are declining more quickly than birds of any other biome in North America, but effects of the most widespread use of native mixed-grass prairies, livestock grazing, on nest…Publication Date 2016
- chestnut-collared longspur
- grasslands
- Sprague's pipit
- stocking rate
- vesper sparrow
- Library Collection RecordGross primary productivity (GPP) is a key component of ecosystem carbon fluxes and the carbon balance between the biosphere and the atmosphere. Accurate estimation of GPP is essential for quantifying…Publication Date 2014-01
- China
- grasslands
- gross primary productivity
- MODIS
- vegetation indices
- Library Collection RecordGross primary productivity (GPP) is a key component of ecosystem carbon fluxes and the carbon balance between the biosphere and the atmosphere. Accurate estimation of GPP is essential for quantifying…Publication Date 2014-01
- China
- grasslands
- gross primary productivity
- MODIS
- vegetation indices
- Library Collection RecordPurple threeawn (Aristida purpurea Nutt. varieties) is a native grass capable of increasing on rangelands, forming near monocultures, and creating a stable state. Productive rangelands throughout the…Publication Date 2013-09-01
- Aristida
- grasslands
- nitrogen amendments
- prescribed burning
- restoration
- Library Collection RecordWe examined the effect of fire on vegetation composition with the use of an experiment with four different fire frequencies (annual, 2-yr interval, 4-yr interval, and an intended control with no…Publication Date 2013-05-01
- C3 and C4 grasses
- fire frequency
- grasslands
- legumes
- Lespedeza capitata
- old fields
- Poa pratensis
- Schizachyrium scoparium
- species richness
- succession
- Library Collection RecordThe importance of sexual reproduction in tussock grasses that regenerate through vegetative growth is unclear. Festuca gracillima Hook. f. was studied as a model because it is a perennial tussock-…Publication Date 2013-03-01
- demography
- Festuca gracillima
- rangelands
- sexual reproduction
- sheep
- soil seed bank
- Library Collection RecordRangeland fire is a common naturally occurring event and management tool, with the amount and structure of biomass controlling transfer of heat belowground. Temperatures that grasshopper eggs are…Publication Date 2013-01-01
- Aulocara elliotti
- bigheaded grasshopper
- fire
- grasslands
- obscure grasshopper
- Orthoptera
- Library Collection RecordMuch of the world’s rangeland is dominated by woody species. Competing land uses and continued encroachment of woody species into non-woody-dominated rangelands have reduced grasslands in many parts…Publication Date 2012-11-01
- animal behavior
- cattle
- genetics
- goats
- plant secondary metabolites
- sheep
- Library Collection RecordFuel loading information is important for prescribed fire planning, evaluating wildfire risk, and understanding fire effects in grassland. Yet fuel loads in grasslands often go unmeasured because of…Publication Date 2011-01-01
- fire
- fuel load
- grasslands
- photo board
- techniques
- Library Collection RecordRangelands occupy 50% of Earth’s land surface and thus are important in the terrestrial carbon (C) cycle. For rangelands and other terrestrial ecosystems, the balance between photosynthetic uptake of…Publication Date 2010-03-01
- climatic variability
- deserts
- functional change
- grasslands
- shrublands
- variability in carbon flux
- Library Collection RecordLow larkspur (Delphinium nuttallianum Pritz.) poisoning causes serious economic loss to livestock producers that graze cattle on foothill and mountain ranges in western North America. In general, all…Publication Date 2010-03-01
- alkaloids
- diet selection
- larkspur
- poisonous plants
- sheep
- Library Collection RecordNutrient controls of ecosystem pattern and process have been widely studied at the Jasper Ridge Biological Preserve, a well-studied California rangeland ecosystem. Here we review these studies, from…Publication Date 2010-01-01
- California rangelands
- carbon
- elevated CO2
- global change
- grasslands
- Jasper Ridge
- nitrogen
- nutrient limitation
- phosphorus
- Library Collection RecordPrescribed burning of aboveground biomass in tallgrass prairie is common and may influence dynamics and magnitudes of carbon (C) movement between the surface and atmosphere. Carbon dioxide (CO2)…Publication Date 2010-01-01
- conditional sampling
- fire
- grasslands
- Konza Prairie
- land management
- net ecosystem exchange
- Library Collection RecordGrasslands and agroecosystems occupy one-third of the terrestrial area, but their contribution to the global carbon cycle remains uncertain. We used a set of 316 site-years of CO2 exchange…Publication Date 2010-01-01
- cropland
- ecosystem respiration
- grasslands
- gross primary reduction
- light-response function method
- net CO2 flux partitioning
- net ecosystem CO2 exchange
- Library Collection RecordNovel concepts and tools to promote progress in grazing science and management need to incorporate heterogeneity and nonlinear scaling of spatially and temporally distributed ecological interactions…Publication Date 2009-09-01
- cattle
- grazing systems
- heterogeneity
- scaling
- sheep
- Library Collection RecordPast research has shown that changes in grazing-resistance traits may be associated with genetic changes in plant populations. Little is known about spatial genetic relationships within plant…Publication Date 2009-07-01
- apomixis
- genetic diversity
- grasslands
- grazing
- history
- Library Collection RecordPrecipitation-use efficiency (PUE) is a key determinant of aboveground net primary production (ANPP). We used long-term datasets to contrast ANPP and PUE estimates between northern (southeast Montana…Publication Date 2009-05-01
- climate change
- drought
- grasslands
- precipitation-use efficiency
- primary production
- rangelands
- water
- Library Collection RecordRangelands account for almost half of the earth’s land surface and may play an important role in the global carbon (C) cycle. We studied net ecosystem exchange (NEE) of C on eight North American…Publication Date 2008-09-01
- carbon flux
- grasslands
- sequestration
- shrub steppe
- Library Collection RecordRunoff and sediment yield from rangelands are extremely important variables that affect productivity, but are difficult to quantify. Studies have been conducted to assess erosion on rangelands, but…Publication Date 2008-09-01
- channels
- erosion
- grasslands
- rainfall simulation
- rills
- surface hydrology
- Library Collection RecordGovernment agencies are subject to increasing public scrutiny of land management practices. Consequently, rigorous, yet efficient, monitoring protocols are needed to provide defensible quantitative…Publication Date 2008-07-01
- grasslands
- observer error
- plant canopy cover
- point-frequency model
- vegetation monitoring
- visual estimates
- Library Collection RecordGrazing management has focused largely on promoting vegetation homogeneity through uniform distribution of grazing to minimize area in a pasture that is either heavily disturbed or undisturbed. An…Publication Date 2008-01-01
- ecosystem management
- equilibrium
- grasslands
- grazing
- heterogeneity
- landscape ecology
- patch dynamics
- plant-animal interactions
- rangelands
- Library Collection RecordQuestions have been raised about whether herbaceous productivity declines linearly with grazing or whether low levels of grazing can increase productivity. This paper reports the response of forage…Publication Date 2007-11-01
- grasslands
- grazing optimization hypothesis
- grazing pressure
- net primary production
- northern mixed-grass prairie
- stocking rate
- Library Collection RecordHigh plant functional group diversity has been hypothesized to reduce resource concentrations based on the assumption that species from one functional group acquire resources similarly to one another…Publication Date 2007-05-01
- ammonium
- competition
- grasslands
- nitrates
- removal experience
- seasonal nutrient use
- soil nutrients
- Library Collection RecordExpert opinion was sought on 2 issues relating to herbivory: seasonal sheep preferences for plant species and seasonal plant response to grazing. Expert opinion is commonly used to parameterize…Publication Date 2007-03-01
- conflict
- grasslands
- heathlands
- herbivory
- knowledge
- uncertainty
- Library Collection RecordExplanations for why sympatric ruminant species select diets composed of different plant species or plant parts have been controversial. Our explanation is based on learning from foraging…Publication Date 2007-03-01
- diet selection
- herbivory
- cattle
- sheep
- goats
- Library Collection RecordHousing developments are replacing ranches in the southwestern United States, with potentially significant but little-studied ecological effects. We counted grasshoppers (Orthoptera: Acrididae) and…Publication Date 2006-11-01
- Acrididae
- fire
- forbs
- grasslands
- grazing
- livestock
- mesquite
- oak
- Library Collection RecordLeafy spurge is an invasive Eurasian weed on pastures and rangeland in North America where it reduces grass forage production. Our objective was to determine the effects of multispecies grazing…Publication Date 2006-09-01
- Aphthona flea beetles
- cattle
- sheep
- Euphorbia esula
- multispecies grazing
- successional weed management
- Library Collection RecordDrought is an inherent trait of most rangelands and sound management necessitates managers address two fundamental questions when facing a drought situation. The first question is, ‘‘what is the…Publication Date 2006-07-01
- drought management
- forage quality
- grasslands
- primary production
- northern Great Plains
- soil water
- species composition
- Library Collection RecordHyperspectral 1-m-resolution remote sensing has the potential to reduce the time spent sampling and reduce spatial sampling errors found in traditional forage nutritive analysis over large areas. The…Publication Date 2005-09-01
- grasslands
- riparian
- vegetation index
- biochemical
- Library Collection RecordThis study was designed to determine the utility of a 1-m-resolution hyperspectral sensor to estimate total and live biomass along with the individual biomass of litter, grasses, forbs, sedges,…Publication Date 2005-09-01
- vegetation indices
- grasslands
- riparian
- standing crop
- Library Collection RecordThe cover of Festuca gracillima (coirón fueguino), a native tussock grass that dominates grass steppes of Southern Patagonia and Tierra del Fuego, has diminished under continuous sheep grazing. This…Publication Date 2005-09-01
- Festuca gracillima
- grassland ecology
- rangelands
- steppe
- arid ecosystems
- matrix
- sheep
- Library Collection RecordA dense mountain big sagebrush (Artemisia tridentata Nutt. ssp. vaseyana [Rydb] Beetle) canopy suppresses understory vegetation. Rambouillet ewes with high and low dietary preferences for mountain…Publication Date 2005-07-01
- bitterbrush
- diet selection
- grazing
- sheep
- Library Collection RecordSoil organic matter (OM) is an important factor for maintaining the productivity and the stability of the so-called caldénal woodland ecosystem of central Argentina. Little is known about the…Publication Date 2004-09-01
- soil organic matter
- grasslands
- Library Collection RecordCommunity-level (per unit area) and individual tiller reproductive biomass inside and outside of long-term exclosures on the northern winter range of Yellowstone National Park, USA were compared.…Publication Date 2003-09-01
- Yellowstone National Park
- bison
- seed productivity
- Cervus elaphus
- winter
- Antilocapra americana
- tillering
- Wyoming
- grazing intensity
- biomass
- botanical composition
- rangelands
- defoliation
- literature reviews
- grasses
- grasslands
- ungulates
- grazing
- clipping
- seed production and yield
- Yellowstone National Park
- literature reviews
- Library Collection RecordNon-selective grazing (NSG) is a relatively novel way of farming livestock in the Nama Karoo of South Africa. Our key question was how heavy grazing under this high-intensity, low-frequency grazing…Publication Date 2003-09-01
- soil microorganisms
- cell respiration
- infiltration (hydrology)
- aggregate stability
- mixed grazing
- soil organic matter
- South Africa
- stocking rate
- grazing intensity
- sheep
- goats
- cattle
- range management
- grazing systems
- hoof action
- infiltration
- intensive herbivory
- microbial respiration
- semiarid
- 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 RecordIn many riparian corridors of the semi-arid west, stream incision has resulted in lowered water tables, basin big sagebrush (Artemisia tridentata var. tridentata Nutt.) encroachment and the loss of…Publication Date 2003-07-01
- Lupinus argenteus
- soil nutrients
- soil enzymes
- Artemisia tridentata var. tridentata
- Carex douglasii
- semiarid soils
- soil organic matter
- enzyme activity
- soil depth
- ash
- nutrient content
- water table
- riparian areas
- Carex
- grasslands
- soil pH
- fire ecology
- prescribed burning
- Artemisia tridentata
- semiarid zones
- land restoration
- biomass
- plant litter
- Nevada
- invasive species
- restoration
- riparian ecosystems
- water table depth
- Library Collection Record'Romerillo' (Baccharis coridifolia DC), 'duraznillo negro' (Cestrum parqui L'Hérit.), and 'sunchillo' (Wedelia glauca (Ort.) Hoff.) are highly toxic species…Publication Date 2003-07-01
- Cestrum
- Baccharis
- Wedelia
- gastrointestinal system
- etiology
- microhistological identification
- Baccharis coridifolia
- Cestrum parqui
- Wedelia glauca
- rumen
- plant tissues
- particle size
- laboratory techniques
- ingestion
- poisoning
- accuracy
- feces
- digestibility
- digesta
- sheep
- Argentina
- poisonous plants
- Microhistological technique
- accuracy
- precision
- Baccharis coridifolia
- Cestrum parqui
- Wedelia glauca
- Library Collection RecordChanges in soil nutrient pools and microbial activity due to fire are important for understanding the availability of nutrients to plants. The objective of this study was to evaluate the effect of…Publication Date 2003-05-01
- Actinomycetales
- Paspalum quadrifarium
- soil bacteria
- carbon
- soil nutrient dynamics
- Paspalum
- grasslands
- soil fertility
- fire ecology
- nitrogen
- prescribed burning
- phosphorus
- biomass
- range management
- seasonal variation
- Argentina
- Paspalum quadrifarium
- fire
- microbial biomass
- soil nutrients
- flooding pampa
- Library Collection RecordConsumption of mesquite (Prosopis glandulosa Torr. var glandulosa) fruit by ruminants is an important component of seed dispersal. Two experiments were conducted to estimate the role of livestock and…Publication Date 2003-05-01
- wildlife
- seed dispersal
- Prosopis glandulosa var. glandulosa
- viability
- weathering
- seed predation
- seed maturation
- seeds
- feces
- digestibility
- sheep
- goats
- cattle
- Texas
- range management
- Prosopis
- germination
- digestion
- fecal dispersal
- phenology
- encroachment
- Library Collection RecordThe development of successful regional or national invasive weed control programs is often hampered by the way the problem is approached. Typically weed control programs are developed and evaluated…Publication Date 2003-01-01
- Aphthona
- Aphthona nigriscutis
- Aphthona lacertosa
- perennial weeds
- teamwork
- biological control agents
- USDA
- integrated pest management
- economic impact
- biological control
- Euphorbia esula
- ranching
- cost-benefit analysis
- invasion
- herbicides
- weed control
- South Dakota
- chemical control
- Wyoming
- sheep
- range management
- botanical composition
- Montana
- grazing
- North Dakota
- biological control
- Aphthona
- Weeds
- invasive species
- success
- integrated pest management
- Library Collection RecordIt was proposed that the digestibility of organic matter (OMD) can be estimated from the relationship between total fecal nitrogen (TFN, as a % of organic matter intake (OMI) and fecal nitrogen…Publication Date 2003-01-01
- organic matter digestibility
- feeding level
- Panicum coloratum
- equations
- feces composition
- chemical composition
- digestibility
- sheep
- in vitro digestibility
- nitrogen content
- seasonal variation
- Argentina
- green fodders
- maturity stage
- fecal index
- nutritive value
- N fecal
- rams
- Library Collection RecordPanels of experts from the Society for Range Management and the National Research Council proposed that status of rangeland ecosystems could be ascertained by evaluating an ecological site's…Publication Date 2002-11-01
- soil surface
- soil structure
- flow resistance
- soil morphology
- gullied land
- wind erosion
- hydrologic factors
- assessment
- rapid methods
- data collection
- ecological balance
- grassland condition
- overland flow
- rill erosion
- ground cover
- grasslands
- range condition
- perennials
- mortality
- vegetation
- biomass production
- range management
- plant litter
- introduced species
- invasive species
- literature reviews
- United States
- soil compaction
- soil stability
- hydrologic function
- biological integrity
- ecosystem status
- erosion
- infiltration
- inventory
- Library Collection RecordThe objectives of this study were to investigate the use of near infrared spectroscopy (NIRS) of fecal samples for predicting the percentage of mountain big sagebrush (Artemisia tridentata Nutt. ssp…Publication Date 2002-07-01
- hear infrared reflectance spectroscopy
- laboratory techniques
- rapid methods
- reflectance
- accuracy
- calibration
- validity
- feces composition
- selective grazing
- infrared spectroscopy
- Artemisia tridentata
- diets
- sheep
- Artemisia
- diet selection
- sagebrush
- sheep
- Library Collection RecordHalogeton [Halogeton glomeratus (Bieb.) C. A. Mey], is a fleshy, annual, herbaceous species that was accidentally introduced into the western U.S. during the 20th century. Because it is highly…Publication Date 2002-05-01
- interspecific competition
- salt tolerance
- deserts
- Halogeton glomeratus
- controlled grazing
- poisonous weeds
- Agropyron desertorum
- invasion
- Krascheninnikovia lanata
- sheep
- range management
- introduced species
- plant competition
- Salt desert
- poisonous plants
- plant ecology
- 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