Rangeland Ecology & Management
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Displaying 101 - 150 of 1416 results
- Library Collection RecordHeitschmidt et al. measured vegetation dynamics in 14- and 42- paddock rotational grazing systems on Texas grasslands. During 1981, estimated aboveground net primary production (ANPP) in the two RG-…Publication Date 1969
- stocking density
- above-ground net primary production
- cell grazing
- grazing system
- growth dynamics
- rangeland productivity
- Library Collection RecordResearch was initiated at the Texas Experimental Ranch in 1981 to quantify the effects of 2 livestock densities on forage quality in a rotational grazing (RG) treatment. Livestock densities…Publication Date 1969
- stocking density
- aboveground net primary production
- cell grazing
- growth dynamics
- rotational grazing treatments
- Library Collection RecordHeitschmidt et al. compared forage quality and standing crop following 3 years of a rotational grazing treatment under heavy stocking with vegetation after 40 years of moderate continuous grazing in…Publication Date 1969
- crude protein
- continuous grazing
- cell grazing
- organic matter digestibility
- Library Collection RecordThe effects of grazing during, or during and after, the season of a drought were determined for eastern Montana grasslands in this study. The results suggested that drought greatly reduced standing…Publication Date 1969
- primary production
- soil water
- baseline data
- ecosystem processes
- species composition
- standing crop
- Library Collection RecordHeitschmidt et al. examined the sustainability of the livestock grazing industry, in the Great Plains of North America, relative to ecological processes, economic viability, and social acceptance.…Publication Date 1969
- economic viability
- grazing
- ecological sustainability
- social acceptance
- Library Collection RecordGrazing may alter the carbon sequestration of grasslands by altering above and below-ground carbon inputs and soil properties. In this study, Henderson et al. determined the long term (20+ years)…Publication Date 1969
- clay
- organic matter
- bulk density
- carbon sequestration
- equivalent soil mass
- mixed grass prairie
- Library Collection RecordHendon and Briske investigated the response of Texas cupgrass (Eriochloa sericea), a warm season perennial bunchgrass, to clipping of 75% of canopy volume prior-, during, and post- culm elongation,…Publication Date 1969
- herbivory
- defoliation
- mortality
- Eriochloa sericea
- herbivory-sensitivity
- perennial bunchgrass
- Texas cupgrass
- tiller demography
- Library Collection RecordIntermediate wheatgrass (Thinopyrum intermedium) and Russian wildrye (Psathyrostachys juncea) plants were exposed to three moisture levels and two levels of simulated grazing to determine the…Publication Date 1969
- biomass
- soil moisture
- axillary buds
- intermediate wheatgrass
- Psathyrostachys juncea
- Russian wildrye
- Thinopyrum intermedium
- Tiller recruitment
- Library Collection RecordIn the summer of 1987, caribou cows and calves (500-1000) became stranded on a small island in the Bathurst Inlet and grazed all of the vegetation on the island before eventually dying of…Publication Date 1969
- Caribou
- overgrazing
- arctic vegetation
- Bathurst Inlet
- Betula spp.
- caribou range ecology
- Salix spp.
- Library Collection RecordHerkert et al. examined the effects of different grassland management techniques on nesting habitat of northern harriers and short-eared owls in southeastern Illinois. The study was conducted on two…Publication Date 1969
- Illinois
- Asio flammeus
- Circus cyaneus
- grassland
- habitat management
- Library Collection RecordThe effects of light, moderate, and heavy Black Brant (Branta bernicla) gosling herbivory on Carex subspathacea grazing lawns and slough levee vegetation were measured in this study. Forage…Publication Date 1969
- herbivory
- grazing intensity
- black brant geese
- Branta bernicla nigricans
- Carex subspathacea
- forage availability
- foraging efficiency
- Triglochin palustris
- Library Collection RecordLong-term (1977-1990) experimental exclusion of three species of kangaroo rats (Dipodomys) from study plots in the Chihuahuan Desert resulted in significant increases in abundance of a tall annual…Publication Date 1969
- Eragrostis lehmanniana
- species diversity
- Aristida adscensionis
- Chihuahuan Desert
- Dipodomys
- Kangaroo Rat
- keystone species
- plant-animal interactions
- Library Collection RecordHeske and Campbell monitored the effects of a livestock exclosure on the abundance of rodent and ant species in the San Simon Valley of southeastern Arizona. The authors set up 11 paired transects…Publication Date 1969
- trampling
- Dipodomys
- grazing effects
- Onychomys
- vegetation structure
- Library Collection RecordHessl synthesized and compared current hypotheses regarding aspen decline by focusing on studies of aspen in the elk winter ranges of Rocky Mountain National Park (RMNP), Jackson Hole (JH), and…Publication Date 1969
- regeneration
- Aspen
- decline
- elk
- invasion
- species decline
- Library Collection RecordThe effects of repeated simulated grazing on big bluestem (Andropogon gerardii) plants, with and without mycorrhizal fungi, were measured Hetrick et al. in this greenhouse experiment. Big bluestem…Publication Date 1969
- grazing
- Andropogon gerardii
- symbiosis
- big bluestem
- Herbage Yield
- plant stress
- vesicular-arbuscular mycorrhizae
- Library Collection RecordComposition, growth, and reproduction of Aster ericoides, Ruellia humilis, and Amorpha canescens were measured in pastures that were ungrazed or stocked lightly, moderately, or highly with cattle to…Publication Date 1969
- stocking density
- grazing intensity
- Amorpha canescens
- Aster ericoides
- Ruellia humilis
- species composition
- Library Collection RecordA 6-year study was conducted in tallgrass prairie to assess the effects of grazing management on plant community composition and diversity. Native plant species diversity, species richness, and…Publication Date 1969
- biodiversity
- plant ecology
- range management
- grazing systems
- cattle grazing
- Flint Hills
- stocking rates
- Library Collection RecordThree plant species (Poa pratensis, Poa compressa, Dactylis glomerata) were grown in three soil types, varying in nutrient contents, and then subjected to simulated grazing (clipping) to determine if…Publication Date 1969
- herbivory
- regrowth
- nutrients
- Poa pratensis
- Poa compressa
- Dactylis glomerata
- Library Collection RecordRainfall and runoff data from 485 storms during the summers of 1979-1984 were evaluated to characterize storm runoff volumes (SF) and peak flows (QP) for 13 small watersheds in the Blue Mountains of…Publication Date 1969
- base-flow rise rate
- hydrograph separation
- peak flow
- stormflow
- surface water hydrology
- Library Collection RecordAuthors examined the response of different salt-marsh plant communities to grazing by lesser snow geese (Chen caerulescens caerulescens) and isostatic uplift at La Perouse Bay, Manitoba, on the…Publication Date 1969
- arctic salt-marshes
- edaphic processes
- grazing lawns
- lesser snow goose
- multiple-state communities
- Library Collection RecordHild et al. assessed the effects of drought and grazing and the combination of these two disturbances on root counts and seedling emergence from the seedbank of an eastern Montana grassland. Authors…Publication Date 1969
- soil horizons
- seedling emergence
- minirhyzotron
- northern mixed grass prairie
- root depths
- 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 RecordThree densities of elk (Cervus elaphus canadensis) were grazed in the winter and early spring to determine how each effected the availability and use of forage by cattle (Bos taurus) in the spring.…Publication Date 1969
- cattle
- Bos taurus
- Cervus elaphus canadensis
- competitive effects
- elk
- facilitative effects
- Library Collection RecordHobbs et al. hypothesized that grazing by large herbivores results in conservation of nitrogen that would otherwise be lost from burned grasslands. They tested this hypothesis in a series of…Publication Date 1969
- burning
- cattle
- grazing
- herbivory
- fire
- nitrogen budgets
- nutrient cycling
- patch dynamics
- spatial variation
- Library Collection RecordReview of several types of disturbances on the health and invasibility of natural plant communities. In the grazing section of the paper, the authors state that grazing is only detrimental in areas…Publication Date 1969
- species diversity
- grazing
- disturbance
- Ecosystem function
- historical use
- invasibility
- Library Collection RecordThis study was carried out in an annual grassland on serpentine soils in northern California. The serpentine soil here has a very low nutrient status and elevated heavy metal concentrations which…Publication Date 1969
- seed dispersal
- production
- seed storage
- germination
- soil
- annual grassland community
- serpentine soil
- Thomomys bottae
- western pocket gophers
- Library Collection RecordHofmann and Ries compared season-of-grazing use of pastures comprised of introduced and cool-season species with pastures comprised of a mix of native warm- and cool-season species with pastures…Publication Date 1969
- liveweight gain
- ground cover
- herbage dry matter
- species composition
- surface-mined land
- warm season species
- Library Collection RecordHolden et al. compared the nutrient composition of orchardgrass (Dactylis glomerata) to that of Grasslands Puna chicory (Cichorium intybus) under 3 management intensities. Puna chicory had greater…Publication Date 1969
- invasive species
- Cichorium intybus
- Dactylis glomerata
- forage quality
- Grasslands Puna chicory
- orchardgrass
- Ruminant Nutrition
- simulated grazing
- Library Collection RecordThe authors evaluated changes in plant composition and forage productivity on two Chihuahuan Desert ranges with different grazing histories and different histories of woody plant control. A major…Publication Date 1969
- grazing
- black grama
- Bouteloua eriopoda
- Chihuahuan Desert
- honey mesquite
- key forage species
- Mesa Dropseed
- Prosopis glandulosa
- Sporobolus flexuosus
- Library Collection RecordHolland and Detling examined plant responses to herbivory and links to belowground nitrogen cycling at Wind Cave National Park, South Dakota. In laboratory tests, net nitrogen mineralization was…Publication Date 1969
- herbivory
- roots
- nitrogen cycling
- plant carbon allocation
- plant ecophysiology
- soil ecology
- Wind Cave National Park
- Library Collection RecordHolland et al. showed how physiological responses to herbivory provide feedbacks to nutrient availability by controlling carbon and nitrogen supply to soil heterographs. The analysis focused on…Publication Date 1969
- carbon allocation
- CENTURY
- feedback
- grazing tolerance
- nitrogen allocation
- nutrient supply
- nutrient-cycling simulation model
- prairie dogs
- Library Collection RecordOver an 11-year period, willow (Salix spp.) population characteristics were recorded after 4 different treatments: long term exclosure, long term grazing, recent exclosure and recent grazing. Results…Publication Date 1969
- Salix
- population dynamics
- cattle grazing
- grazing exclusion
- riparian areas
- willow height
- Library Collection RecordHolt et al. initiated grazing in newly seeded Russian wildrye (Elymus junceus) pastures in May, June, and August to determine if delaying grazing would enhance beef and forage production in…Publication Date 1969
- carrying capacity
- cattle gains
- Delayed Grazing
- Elymus junceus
- forage production
- Russian wildrye
- seedling establishment
- Library Collection RecordTo evaluate streambank fencing as a management tool, for two years Homyack and Giuliano measured the richness, abundance, and biomass of reptile and amphibian species on 10 grazed streams and…Publication Date 1969
- biomass
- livestock
- vegetation
- water quality
- abundance
- amphibian
- herpetofauna
- macroinvertebrate
- reptile
- riparian areas
- species richness
- streambank fencing
- Library Collection RecordGrasshopper densities showed a strong positive increase with the presence of bison grazing and also to prescribed burning. In contrast, overall grasshopper numbers decreased in areas that were…Publication Date 1969
- Orthoptera
- population dynamics
- prescribed burning
- bison grazing
- Konza Prairie
- Library Collection RecordJaramillo and Detling raised samples of blue grama (Bouteloua gracilis) from heavily grazed prairie dog (Cynomys ludovicianus) colonies and lightly grazed uncolonized sites in Wind Cave National Park…Publication Date 1969
- Bouteloua gracilis
- defoliation
- blue grama
- clipping
- Cynomys ludovicianus
- grass
- grassland
- grazing history
- nitrogen accumulation
- nutrient accumulation
- prairie dogs
- Library Collection RecordAuthors studied the response of two grass species differing in growth forms and photosynthetic pathway to simulated cattle urine deposition in a native semi-arid grassland of Wyoming. The species…Publication Date 1969
- urine
- grassland
- heterogeneity
- tiller
- uptake
- Library Collection RecordJefferies et al. state that there is little evidence that across northern ecosystems herbivores do influence plant species assemblages in the different communities in the long-term, or alter the…Publication Date 1969
- plant response
- herbivory
- plant succession
- forage species
- northern plant communities
- nutrient cycling
- Library Collection RecordJeffries and Klopatek investigated the vegetative features of blackbrush (Coleogyne ramosissima)-dominated sites with low or high grazing pressures, a site where grazing pressure has been removed,…Publication Date 1969
- blackbrush
- Coleogyne ramosissima
- cryptogamic crust
- grazing impacts
- Kaiparowits Basin
- relic community
- vegetation recovery
- Library Collection RecordThe winter diets of white-tailed deer (Odocoileus virginianus ochrourus), Rocky Mountain elk (Cervus elaphus nelsoni), and Shiras moose (Alces alces shirasi) in this study primarily consisted of…Publication Date 1969
- Alces alces shirasi
- Cervus elaphus nelsoni
- dietary overlap
- Odocoileus virginianus ochrourus
- opportunistic foraging
- specialized foraging
- Library Collection RecordJenkins and Wright looked at the spatial overlap of white-tailed deer, elk and moose niches and how that effected habitat selection and vegetation preferences. The main factor found to influence all…Publication Date 1969
- Odocoileus virginianus
- Cervus elaphus
- moose
- Alces alces
- community type
- elk
- habitat overlap
- vegetation preferences
- white-tailed deer
- Library Collection RecordThree study sites (heavy cattle stocking, moderate to light cattle stocking, and no cattle stocking) were used to determine how cattle (Bos taurus) stocking rates influence white-tailed deer (…Publication Date 1969
- Bos taurus
- Odocoileus virginianus
- carcass weights
- cattle stocking
- competition
- reproductive rates
- Library Collection RecordDietary overlap between cattle (Bos taurus) and white-tailed deer (Odocoileus virginianus) was greatest during the winter and least during the summer. Competition between deer and cattle in the…Publication Date 1969
- Bos taurus
- Odocoileus virginianus
- competition
- dietary overlap
- dietary quality
- facilitative effects
- Library Collection RecordIncreased cattle (Bos taurus) stocking densities correlated to an increase in the percentage of nests trampled, and was greatest between 8 and 17 hd/ha especially during the first three days of…Publication Date 1969
- Bos taurus
- stocking density
- ground-nesting birds
- nest location
- nest trampling
- simulated nest
- 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 RecordIn this Utah study, Jones and Nielson evaluate the response of Snake River wheatgrass (Elymus lanceolatus ssp. wawawaiensis), thickspike wheatgrass (Elymus lanceolatus ssp. lanceolatus), and two…Publication Date 1969
- grazing
- basal area
- Boot Stage
- Elymus lanceolatus ssp. lanceolatus
- Elymus lanceolatus ssp. wawawaiensis
- Snake River wheatgrass
- spike number
- spring clipping
- Thickspike Wheatgrass
- Library Collection RecordJones conducted a quantitative review of the effects of cattle grazing in arid systems on 16 response variables ranging from soil bulk density to total vegetative cover to rodent species diversity.…Publication Date 1969
- grazing
- arid ecosystems
- grazing effects
- meta-analysis
- rangeland conservation
- Library Collection RecordJones and Longland looked at the effects of cattle grazing on the habitat selection of desert rodents in northwestern Nevada. The area within 300 meters of a water well was considered intense…Publication Date 1969
- Microhabitat
- habitat range
- Library Collection RecordJohnson-Nistler et al. measured the effects of black-tailed prairie dog (Cynomys ludovicianus) colonies on native range vegetation, in the mixed grass prairie of northeastern Montana. Plant biomass…Publication Date 1969
- vegetation
- nutrition
- herbivory
- black-tailed prairie dog
- Cynomys ludovicianus
- Library Collection RecordJones et al. looked at the differences in rodent abundance and location between livestock grazing exclosures and currently grazed livestock pastures on the Appleton-Whittell research ranch in Arizona…Publication Date 1969
- Dipodomys spp.
- fire
- ground cover
- hispid cotton rat
- Kangaroo Rat
- Sigmodon hispidus