Rangeland Ecology & Management
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Displaying 201 - 250 of 1416 results
- Library Collection RecordThe effect of cattle, and sheep and goat grazing (2 years sheep followed by 1 year of goat grazing) on yellow starthistle was examined on two sites in California over three years. One site was…Publication Date 1969
- weed management
- Centaurea solstitialis
- multi-species grazing
- short-duration grazing
- time-controlled grazing
- Library Collection RecordThe effects of cattle grazing alone and grazing paired with herbicide application on yellow starthistle, ability of annual and perennial grasses to suppress yellow starthistle through competition,…Publication Date 1969
- plant density
- weed management
- grazing
- Centaurea solstitialis
- Herbicide Treatment
- plant canopy
- plant mortality
- Plant Size
- Library Collection RecordA two year (1989-1990) study examined various grasshopper stocking densities on three plant size classes of broom snakeweed plants in caged plots on two sites. The first site was approximately 9 km…Publication Date 1969
- biological control
- broom snakeweed
- Forage Consumption
- grasshopper herbivory
- plant biomass
- plant volume
- Library Collection RecordGrasshopper herbivory was observed for two (1991-1992) at two shortgrass sites near Corona and Folsom, New Mexico. Vegetative measurements were taken before and after grasshoppers were placed in…Publication Date 1969
- forage production
- Gutierrezia sarothrae
- insect herbivory
- plant biomass
- plant mortality
- weed reduction
- Library Collection RecordA bioeconomic model was developed to analyze relationship between economically optimal and ecologically sustainable grazing practices for semi-arid wind-erosive rangelands (semi-arid perennial…Publication Date 1969
- wind erosion
- off-site effects
- optimal control
- rangeland management
- sustainable production
- Library Collection RecordCommon crupina (Crupina vulgaris) seed germination and recovery rates were examined after passing through the digestive tracts of sheep, cattle, deer, horses and Chinese pheasants in a short term pen…Publication Date 1969
- seed viability
- seed germination
- digestion
- invasive weeds
- multi-species grazing
- seed consumption
- Library Collection RecordThis three year study examined the effect of a single grass defoliation on the establishment of diffuse knapweed (Centaurea diffusa) at two different sites east of Plymouth, Washington. The first…Publication Date 1969
- Pseudoroegneria spicata
- crested wheatgrass
- Agropyron cristatum
- density
- bluebunch wheatgrass
- Centaurea diffusa
- clipping
- rangeland weeds
- seeding
- Library Collection RecordA two year study in southeastern Oregon, forage kochia and seeds were clipped, ground and place in the rumens of cannulated steers for 0, 2, 8 12, 24, and 48 hours and tested for forage quality.…Publication Date 1969
- weed management
- seed germination
- seed viability
- grazing management
- rumen digestibility
- weed invasion
- Library Collection RecordThis article is a summary of 83 papers on the use of grazing in restoration projects within the tallgrass prairie ecosystem highlighting species distributions dynamics, the relationship between…Publication Date 1969
- grazing
- plant communities
- degradation
- floral history
- microsites
- plant diversity
- rare species
- restoration
- species dominance
- tallgrass prairie
- Library Collection RecordAarssen and Turkington studied the effects of four pasture ages, seeded in 1914, 1939, 1958, and 1977, on vegetative and reproductive characteristics of three plant species (Holcus lanatus, Lolium…Publication Date 1969
- Holcus lanatus
- Lolium perenne
- Trifolium repens
- grazing
- genetic selection
- pasture age
- Library Collection RecordA two year study was conducted in Newfoundland on the Gros Morne National Park, a boreal ecosystem, to determine the level of susceptibility to invasion and if any kind of disturbance would cause…Publication Date 1969
- soil pH
- herbivory
- forests
- boreal ecosystem
- disturbance
- human activity
- natural areas
- weed spread
- 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 RecordFleece of sheared sheep coming off winter range in Juab County, Utah were examined for presence of squarrose knapweed capitula. Viability of collected seeds was measured in greenhouse germination…Publication Date 1969
- wool
- sheep
- Centaurea virgata ssp.
- rangeland weeds
- squarrose knapweed
- weed dispersal
- Library Collection RecordYearling heifers were used in a series of short term studies in Northern Utah to determine if cattle could be conditioned to graze broom snakeweed. Cattle were conditioned in a pen trial to examine…Publication Date 1969
- weed management
- diet training
- forage availability
- forage selectivity
- positive conditioning
- short-duration grazing
- Library Collection RecordTwo small pastures in the Upper Ruby Valley of southwest Montana were set up to determine if use by sheep prior to cattle would decrease the occurrence of waxy larkspur (Delphinium glaucescens)…Publication Date 1969
- poisonous plants
- biological control
- Delphinium glaucescens
- forage selection
- multi-species grazing
- weed utilization
- Library Collection RecordA series of studies in three western states looked at using sheep to graze larkspur (Delphinium spp.) plants before cattle were allowed in the area in order to reduce poisoning. The first study…Publication Date 1969
- biological control
- trampling
- Delphinium spp
- Poisonous Plant
- sheep grazing
- sheep herding
- weed utilization
- Library Collection RecordGrowth and miserotoxin content of Columbia milkvetch following early season cattle grazing were measured. Cow/calf pairs grazed Columbia milkvetch infested rangeland near Lac du bois, British…Publication Date 1969
- grazing management
- Astragalus miser
- toxic plants
- weed biomass
- Weed Growth
- weed utilization
- Library Collection RecordThe growth and miserotoxin content of Columbia milkvetch (Astragalus miser) plants that were clipped in late May were determined at weekly intervals until early July. Groups of Columbia milkvetch…Publication Date 1969
- poisonous plants
- plant production
- miserotoxin
- Astragalus miser
- Columbia milkvetch
- simulated herbivory
- toxin concentrations
- Library Collection RecordCattle were used in a short term study in central Utah, at the head of Six-mile canyon near Manti, Utah, to evaluate tall larkspur (Delphinium barbeyi) consumption in relation to site, plant…Publication Date 1969
- poisonous plants
- alkaloids
- cattle diets
- Delphinium barbeyi
- grazing behavior
- Plant Growth Stage
- rumen fill
- Library Collection RecordThe effects of grasshopper herbivory and competition on threadleaf snakeweed plants were measured in the Bernalillo watershed in central New Mexico. Eight treatment combinations (protected vs. non-…Publication Date 1969
- plant competition
- grasshopper herbivory
- Hesperotettix viridis
- Plant Distribution
- plant height
- plant mortality
- snakeweeds
- Stem Count
- Library Collection RecordThe relationship of plant size and age to herbivory and the effects of herbivory of two different insect species (grasshoppers and a root boring beetle) that feed on threadleaf snakeweed plants were…Publication Date 1969
- age structure
- Crossidius pulchellus
- grasshopper herbivory
- gutierrezia microcephala
- Hesperotettix viridis
- plant demography
- plant mortality
- seed pools
- Library Collection RecordThe effects of grasshopper herbivory on stem water potential of threadleaf snakeweed plants were examined in two experiments on the Bernalillo watershed north of Albuquerque, New Mexico. Experiment…Publication Date 1969
- Plant performance
- arid grassland
- feeding damage
- grasshopper herbivory
- gutierrezia microcephala
- Hesperotettix viridis
- plant water
- Library Collection RecordThe influence of three years of controlled sheep grazing on spotted knapweed (Centaurea maculosa) infestations in an Idaho fescue (Festuca idahoensis) dominated site in southwestern Montana was…Publication Date 1969
- Weeds
- age class distribution
- Centaurea maculosa
- Festuca idahoensis
- seed bank
- sheep grazing
- Library Collection RecordThe effects of intensive cattle grazing on oxeye daisy (Chrysanthemum leucanthemum) were examined in a two year study northeast of Bozeman, Montana. The first year of grazing was on six, 12-ha…Publication Date 1969
- utilization
- density
- Phleum pratense
- smooth brome
- Bromus inermis
- Kentucky bluegrass
- grazing system
- Poa pratensis L.
- seedbank
- Timothy
- weed seedlings
- weed spread
- Library Collection RecordSheep were used in a short term pen trial to determine the germinability and the viability of leafy spurge seeds after spending various times in the rumen and exposure to acid pepsin. Seeds were…Publication Date 1969
- Euphorbia esula
- rumen
- seed germination
- seed viability
- invasive weeds
- Seed Recovery
- sheep grazing
- Library Collection RecordA short term greenhouse study examined the effects of species competition and clipping on carbon allocation in leafy spurge plants grown with Idaho fescue, Kentucky bluegrass and alfalfa plants.…Publication Date 1969
- defoliation
- Leafy spurge
- plant competition
- Medicago sativa
- carbon allocation
- Festuca idahoensis
- grazing tolerance
- noxious range weed
- Poa pratensis L.
- Library Collection RecordEffects of late fall grazing, herbicide application and seeding treatments were examined on a diffuse knapweed infested rangeland east of Grand Forks, British Columbia (49 0 5 N; 118 17 W) hot…Publication Date 1969
- weed control
- alfalfa
- crested wheatgrass
- plant competition
- plant cover
- Centaurea diffusa
- Russian wildrye
- seeding
- Library Collection RecordEstablishment and survival of five weeds were examined across a gradient from uplands to lowlands with 5 combinations of disturbances (long-term grazed, and grazed during experiment, long-term grazed…Publication Date 1969
- herbivory
- compensatory growth
- Cirsium arvense
- disturbance
- establishment
- Kochia scoparia
- landscape topography
- Lepidium densiflorum
- Salsola iberica
- Sisymbrium altissimum
- Library Collection RecordFistulated steers were fed jointed goatgrass (Aegilops cylindrica Host.) seed at three rates (0.64 1.28 and 2.56 lbs/steer) in a short term pen study to determine the viability, germination and…Publication Date 1969
- rumen
- feces
- digestion
- Aegilops cylindrica Host
- seed dissemination
- weed spread
- Library Collection RecordIn a short term study, sheep and goats were fed alfalfa and barley mixed with leafy spurge seeds (3000, or 1500) to determine the recovery, germinability and viability of the weed seeds after passage…Publication Date 1969
- biological control
- grazing
- digestion
- mastication
- noxious weed spread
- weed seed dissemination
- Library Collection RecordA four year study evaluated pairing goat grazing and herbicide control (picloram plus 2,4-D) as a better long term control leafy spurge (Euphorbia esula L.) infestations than either treatment alone.…Publication Date 1969
- density
- stocking rate
- picloram
- Euphorbia esula
- grazing
- integrated weed management
- rangeland weed control
- Library Collection RecordCattle foraging behavior was observed over three years on a 121 ha pasture near Leonard, North Dakota. Cattle were grazed season long at a heavy stocking rate (0.53 AUM/ha - 0.61 AUM/ha) in a…Publication Date 1969
- cattle
- density
- Euphorbia esula
- economic loss
- forage production
- herbage use
- rangeland management
- Season Long Grazing
- weed utilization
- Library Collection RecordThis two year study used yearling heifers near Mead, Nebraska on an improved pasture seeded to big blue stem (Andropogon gerardii var. gerardii). The goal was to determine if cattle grazing could…Publication Date 1969
- density
- biomass
- Amaranthus retroflexus
- Andropogon gerardii var. gerardii
- Improved Pasture
- mob grazing
- Nitrate
- redroot pigweed
- Library Collection RecordEffects of short duration grazing by sheep or cattle combined with picloram treatments on leafy spurge (Euphorbia esula) and Kentucky bluegrass (Poa pratensis L.) outside of Clyde Park, Montana. A…Publication Date 1969
- Euphorbia esula
- Kentucky bluegrass
- biological control
- density
- grazing management
- weed management
- noxious weeds
- Poa pratensis L.
- rangeland
- Library Collection RecordA short term greenhouse study examined spotted knapweed and bluebunch wheatgrass responde to competition (intra- and inter-specific), light and defoliation treatments. Collections of 405 mature…Publication Date 1969
- Pseudoroegneria spicata
- plant competition
- bluebunch wheatgrass
- carbohydrate reserves
- Centaurea maculosa
- Environmental Stress
- noxious range weed
- Library Collection RecordA clipping study was designed to simulate herded goat grazing and measure the effects on a leafy spurge (Euphorbia esula) infested rangeland on the Sheyenne National Grasslands in North Dakota.…Publication Date 1969
- Euphorbia esula
- cattle
- biological control
- density
- biological control
- density
- Angora goats
- clipping
- EPHES
- leafy spruge
- noxious weed
- Library Collection RecordEffects of herbivory on grazed and ungrazed alien and native species in the California annual grasslands was evaluated using greenhouse and field trials. This study was conducted on the Carrizo…Publication Date 1969
- plant cover
- plant density
- Erodium cicutarium
- invasive alien plants
- native plant diversity
- overcompensation
- Library Collection RecordA short term greenhouse study was used to examine the vegetative effects of spotted knapweed (Centaurea maculosa) when grown in different light and competitive conditions and clipped at varying…Publication Date 1969
- Pseudoroegneria spicata
- weed management
- Controlled environment
- Centaurea maculosa
- clipping
- grazing management strategy
- Library Collection RecordPlots in the southern Sierra Nevada’s were examined for species richness and cover of native and invasive species in three vegetation types (blue oak savanna, chaparral and coniferous forests)…Publication Date 1969
- alien plant species
- cover
- disturbance
- grazing history
- plant diversity
- species richness
- Library Collection RecordDensity, cover and biomass of spotted knapweed was examined on Idaho fescue, bluebunch wheatgrass dominated sites in outside of Bozeman, Montana. This study was designed to examine the effects of…Publication Date 1969
- grazing management
- Centaurea maculosa
- defoliation frequency
- Festuca idahoensis
- Idaho fescue
- weed invasion
- Library Collection RecordThis three-year greenhouse study in eastern Montana examined the plant height, biomass and number of tillers of Japanese brome when plants were clipped to a height of 75 mm or 150 mm, weekly or…Publication Date 1969
- Controlled environment
- Bromus japonicus
- clipping frequency
- clipping intensity
- Japanese brom
- plant biomass
- plant height
- tiller count
- Library Collection RecordThis study on the Buenos Aires National Refuge in south central Arizona examined the effects of bird predation on grasshoppers that feed on broom snakeweed (Gutierrezia sarothrae) and threadleaf…Publication Date 1969
- biological control
- avian predation
- broom snakeweed
- gutierrezia microcephala
- Gutierrezia sarothrae
- Hesperotettix viridis
- insect herbivory
- Melanoplus aridus
- rangeland weeds
- threadleaf snakeweed
- Library Collection RecordThe top 2 cm of soil from a flooded wetland near Smith Falls, Ontario with an established purple loosestrife population was collected and transported back to the greenhouse in south-central manitoba…Publication Date 1969
- weed management
- Lythrum salicaria L.
- Root System
- seedling establishment
- Weed Density
- wetland weed
- Library Collection RecordThis study was conducted on three contiguous range units within the Douglas Fir biogeoclimatic zone in the Cranbrook Forest District, British Columbia. The role of cattle in relation to hound’s-…Publication Date 1969
- seed dispersal
- adhesive fruits
- burrs
- Cynoglossum officinale
- monitoring weed populations
- noxious range weed
- weed biocontrol
- Library Collection RecordCannulated steers were used in a short-term pen study to determine the effects of rumen digestion on pepperweed seed germination in two experiments. Experiment 1: examined seed germination…Publication Date 1969
- rumen
- seed germination
- seed dispersal
- scarification
- digestion
- Lepidium latifolium
- seed hydration
- Library Collection RecordTwelve species of weeds common on Canadian Prairie that are common contaminates in grain and forages were selected for two pen trials examining seed viability. Experiment 1: examined seeds after…Publication Date 1969
- rumen
- Avena fatua
- Bromus tectorum
- Hordeum jubatum
- Amaranthus retroflexus
- Chenopodium album
- common lambsquarters
- downy brome
- field pennycress
- foxtail barley
- green foxtail
- Malva pusilla
- Polygonum convolvulus
- redroot pigweed
- round-leaved mallow
- Setaria viridis
- Thlaspi arvense
- weed seed dissemination
- weed seed germination
- weed seed survival
- wild buckwheat
- Wild Oats
- Library Collection RecordThis article is a review of research contained in 85 studies on postfire management in forested public lands of the western US and from an ecosystems restoration perspective.Publication Date 1969
- Ecological Principles
- postfire treatments
- restoration
- salvage logging
- wildland fire
- Library Collection RecordThe effect on streambank alteration measurements by observer and choices related to the protocol were evaluated. Streambank alteration was measured in 10 fall grazing allotments on USFS lands in…Publication Date 1969
- training
- allowable use standards
- annual monitoring indicators
- observer variability
- riparian grazing
- Library Collection RecordThe effects of complete and partial exclusion of cattle grazing on avian recovery was examined in a study conducted in riparian areas of Orestimba Creek and Garzas Creek on Simon Newman Ranch in…Publication Date 1969
- Avian conservation
- Breeding Bird Survey (BBS)
- cattle exclosures
- livestock grazing
- rangeland management
- riparian habitats
- seasonal exclusion
- species restoration
- Library Collection RecordThree experiments were set up to test the effectiveness of combining herbicides and perennial grass competition to control downy brome. The first two experiments tested three successive applications…Publication Date 1969
- cheatgrass
- competitive perennial grasses
- downy brome
- herbicide and intensive grazing
- herbicide control
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