Rangeland Ecology & Management
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- Library Collection RecordThe gaming theory is used to model outcomes of grassland use for grazing by cooperative farmers and non-cooperating farmers. Models account for grassland dynamics and assume each farmer maximizes…Publication Date 1969
- Common property
- grasslands
- Common pool resources
- complex ecosystem dynamics
- differential games
- multiple equilibria
- Library Collection RecordThe effects of prescribed fire and livestock grazing on a semi-arid grassland community dominated by the non-native invasive grass, Lehman lovegrass (Eragrostis lehmanniana Nees) were evaluated at…Publication Date 1969
- Arizona
- prescribed burning
- species diversity
- Eragrostis lehmanniana
- invasive grasses
- Lehmann lovegrass
- livestock grazing
- native plants
- species richness
- Library Collection RecordPlant species richness and the proportion of native species in a complex of adjacent serpentine and nonserpentine meadows was examined in northern Napa and southern Lake counties in California.…Publication Date 1969
- plants
- grasslands
- diversity
- invasion
- serpentine
- Library Collection RecordMcClaren and Anable measured the changes in density of Lehmann lovegrass (Eragrostis lehmanniana) and native grasses, and the proportion of lovegrass present along a livestock grazing intensity…Publication Date 1969
- invasive species
- Arizona
- disturbance
- mesquite-grass savanna
- repeated measure analysis
- Library Collection RecordThe total biomass response of Stipa occidentalis to elevated CO2 was similar (averaging 18% increase in biomass) to the response found for other grassland species. However, the increase in total…Publication Date 1969
- grazing
- herbivory
- grasslands
- CO2 enrichment
- global change
- Stipa occidentalis
- Yellowstone National Park
- Library Collection RecordAuthor measured the effects of different frequencies and intensities of defoliation on rough fescue and parry oat grass regrowth and yield. Rough fescue yield declined as clipping frequency…Publication Date 1969
- grasslands
- plant production
- clipping height
- clipping interval
- danthonia parryi
- Festuca scabrella
- Harvest
- simulated grazing
- Library Collection RecordWeiss examined the role of livestock in maintaining nutrient-poor serpentine soil grasslands in California as suitable habitat for the threatened bay checkerspot butterfly (Euphydryas cditya baycnsis…Publication Date 1969
- nitrogen
- grasslands
- grazing
- butterfly populations
- plant growth
- Library Collection RecordValone and Sauter looked at the effects of cattle exclusion, for over 20 years, from a shrub-dominated site to see how rodents and grass species would respond. The authors believe that high cattle…Publication Date 1969
- Arizona
- livestock
- overgrazing
- alternate stable state
- perennial grass
- time lag
- Library Collection RecordThe authors present data on the effects of elk (Cervus elaphus) herbivory on grassland species composition, biomass production, and forage quality, and to document any changes in ungulate-grassland…Publication Date 1969
- Cervus elaphus
- grazing
- grasslands
- herbivory
- elk
- fire effects
- forage quality
- ungulate winter range
- Yellowstone National Park
- Library Collection RecordShariff et al. examined the impact of moderate and heavy grazing on above-ground net primary productivity (ANPP), growing season root productivity (GSRP), and plant nitrogen in the grasslands of…Publication Date 1969
- grazing
- productivity
- grasslands
- grazing intensity
- Nitrogen Uptake
- Library Collection RecordWhen herbivores preferentially feed on early successional species they may generate conditions favorable for these species and thus create a positive feedback. Positive feedbacks may create multiple…Publication Date 1969
- foraging
- grasslands
- herbivory
- alternate stable states
- disturbance
- herbivore population dynamics
- multiple stable state
- pocket gophers
- spatial structure
- succession
- Thomomys bottae
- Library Collection RecordPolley and Detling examined the effects of defoliation on growth and nitrogen nutrition in populations of Agropyron smithii (western wheatgrass) collected from a heavily grazed black-tailed prairie…Publication Date 1969
- defoliation
- grasslands
- biomass production
- nitrogen accumulation
- prairie dog colonies
- Library Collection RecordHerbivores are generally thought to enhance plant diversity by their direct consumption of competitively dominant plant species and indirect effects on plants competition. Consequently, management…Publication Date 1969
- herbivory
- biodiversity
- grasslands
- extinction dynamics
- habitat scales
- local plant colonization
- spatial scales
- temporal scales
- Library Collection RecordChanges in vegetation under yearlong grazing were compared with those under Santa Rita grazing system, a rotation system designed for southwestern US rangelands where 90% of the forage is produced in…Publication Date 1969
- Arizona
- 3-pasture
- grass density
- Rotation Grazing
- semidesert grasslands
- shrub intercept
- Library Collection RecordJepson-Innes and Bock looked at the effect of cattle grazing on the abundance of grasshopper species on the Appleton-White Research Ranch in southeastern Arizona. The subfamilies Gomphocerinae,…Publication Date 1969
- Acrididae
- Arizona
- grazing
- abundance
- Gomphocerinae
- Melanoplinae
- Library Collection RecordThe data from 10 exclosures examined in Arizona shows few differences in species frequencies between the inside and outside, with some exceptions. The large amount of sameness between the grazed and…Publication Date 1969
- Arizona
- grazing
- grazing management
- Exclosure
- sagebrush grasslands
- Library Collection RecordGrazing is needed for the maintenance of a grassland system. Hill notes that altering the well-documented relationship between producer and consumer (grass and herbivore) seems unwise. Removing…Publication Date 1969
- grazing
- herbivores
- grasslands
- management
- biological diversity
- policy
- Library Collection RecordHarrison et al. studied the effects of livestock grazing and fire in a mosaic of serpentine and nonserpentine soils in California, where most grasslands are dominated by exotic annuals and serpentine…Publication Date 1969
- grasslands
- grazing
- diversity
- exotic species
- fire
- invasion
- serpentine
- species richness
- Library Collection RecordHalstad et al. looked the effects of a deferred, rest-rotation grazing system on the feeding site selection by elk at the Walker Basin Allotment in Central Arizona. Cattle grazed a four pasture…Publication Date 1969
- Arizona
- deferred grazing
- paired-plots
- rest-rotation
- stubble height
- western wheatgrass
- Library Collection RecordOne of the goals of the Buenos Aries National Wildlife Refuge is to preserve native vegetation on grasslands that have been invaded by mesquite (Prosopis velutina) and many non-native species,…Publication Date 1969
- climate
- Eragrostis lehmanniana
- grazing
- Arizona
- fire
- long-term monitoring
- non-native
- Semi-Desert Grassland
- Library Collection RecordIn this study, Frank and McNaughton tested the theory that herbivory would stimulate above-ground production by measuring the effects of elk (Cervus elaphus) and bison (Bison bison) grazing on plant…Publication Date 1969
- herbivory
- primary production
- grasslands
- Cervus elaphus
- bison
- Bison bison
- elk
- Yellowstone National Park
- Library Collection RecordFrank et al. determined how nitrogen (N) cycling in Yellowstone National Park related to topography and ungulate use. As found in previous grassland studies, the N mineralization rates in…Publication Date 1969
- grasslands
- herbivory
- nitrogen cycling
- Yellowstone National Park
- Library Collection RecordThis article reviews the previous discussions regarding the bison migration/non-migration controversy. One hypothesis is that bison herds migrated regularly between woodland and grassland…Publication Date 1969
- bison
- grasslands
- bison movements
- foraging strategy
- Great Plains
- habitat
- human-bison ecological relationship
- woodland environments
- Library Collection RecordThis article supports the belief that overcompensation of total primary production can occur in plant populations and communities subjected to grazing. However, it is noted that whether or not this…Publication Date 1969
- compensation
- grazing
- grasslands
- primary production
- rangelands
- herbivory
- herbivore optimization theory
- overcompensation
- Library Collection RecordBristow et al. looked at the effects of cattle grazing on the habitat selection of Montezuma quail in Arizona. The most important aspect of quail habitat was ample hiding cover followed closely by…Publication Date 1969
- Arizona
- grazing
- cattle
- Cyrtonyx montezumae
- habitat selection
- Madrean evergreen woodland
- Montezuma quail