Index Catalog // ScholarsArchive@OSU

Numerical classification of range vegetation and statistical analysis of its ecology

Creator:: Pyott, William Tucker, 1936-
Abstract:: The purpose of the research was to computerize mathematical procedures for the analysis of range vegetation and environmental data. The specific objectives were as follows: 1. to develop and apply computer techniques to the classification of vegetation in order to provide a phytosociological framework within which to investigate the ecology...
Resource Type:: Dissertation
Full Text:: Vegetation Classification 7 The Dual Role of Plant Species 11 Determination of Vegetation Units 12

The effect of grazing interval on forage quality and production of meadow foxtail

Creator:: Wenick, Jess J.
Abstract:: For the last fifty years, meadow foxtail (Alopecurus pratensis L.) has been invading native flood meadows throughout the Harney Basin in southeastern Oregon. The expansion of this grass species has been the result of its broad climatic requirements and ability to withstand drought while thriving in saturated soil conditions for...
Resource Type:: Masters Thesis
Full Text:: alternative harvesting techniques such as early-spring grazing to set back plant maturity while maintaining

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Creator:: Clark, Patrick Eugene
Abstract:: The effects of late spring defoliation on the winter forage quality of bluebunch wheatgrass (Agropyron spicatum [Pursh] Scribn. & Smith), Idaho fescue (Festuca idahoensis Elmer) and elk sedge (Carex geyeri Boott) and the response of wintering Rocky Mountain elk (Cervus elaphus nelsoni Bailey) to changes in winter range forage quality...
Resource Type:: Dissertation
Full Text:: culms/plant for Idaho fescue in grassland and ecotone vegetation types 109 5.4 Forage quality of

Influence of cattle grazing and forage seeding on establishment of conifers in southwest Oregon

Creator:: Alejandro-Castro, Mabel
Abstract:: The ability of controlled livestock grazing, in combination with seeding of palatable forages, to reduce understory competition and enhance conifer establishment, was evaluated during 1985 and 1986, on two adjacent sites in southwestern Oregon. In 1984, Site 1 was clearcut and broadcast burned to remove slash, and Site 2 was...
Resource Type:: Masters Thesis
Full Text:: Influence of cattle grazing and forage seeding on

Quality of bluebunch wheatgrass (Agropyron spicatum) as a winter range forage for Rocky Mountain Elk (Cervus elaphus nelsoni) in the Blue Mountains of Oregon

Creator:: Bryant, Larry Duane
Abstract:: This research was conducted on three study areas on elk winter ranges in Northeast Oregon. One was on the Starkey Experimental Forest and Range and the others were in the same vicinity. Plant appendages, spring and fall defoliation and fall growth of bluebunch wheatgrass were evaluated in terms of quality...
Resource Type:: Dissertation
Full Text:: elk. Freezing and thawing of fall growth plant material had minimal effect on forage quality. There

Impact of sheep density and grazing duration on forage use in tall fescue-subclover hill pasture

Creator:: Ali, Eltom E.
Abstract:: A study investigating the effect of sheep stocking density and grazing duration on forage intake, grazing efficiency, dietary selectivity and subsequent forage accumulation in tall fescue(Festuca arundinacea)- subclover(Trifolium subtaranium) pastures was conducted near Corvallis, Oregon during early and late spring in 1988 and 1989. Grazing treatments were 2, 6, and...
Resource Type:: Dissertation
Full Text:: plant height increases. When forage mass progressively declined from approximately 3000 to 1000 kg/ha

The impact of grazing on forage quantity, quality and foliar cover of the herbaceous vegetation in the Mamora Cork Oak Forest, Morocco

Creator:: Mejjati-Alami, Mohammed
Abstract:: This research was conducted in the Mamora cork oak forest of Morocco to: (1) Describe the impacts of sheep grazing (none, 35% use, 70% use) in March, April, May and June of 1987 and 1988 on seasonal forage production; (2) evaluate the effects of these factors on annual changes in...
Resource Type:: Dissertation
Full Text:: The impact of grazing on forage quantity, quality and

Heifer performance and drought and grazing effects on flood meadow vegetation

Creator:: Nixon, David Eugene, 1963-
Abstract:: Native flood meadows are important for hay production and winter feeding areas in many western states. With the introduction of meadow foxtail (A lopecurus pratensis L.) and other new species, the botanical composition of the meadows has been steadily changing. With shifting priorities occuring on public lands, these flood meadows,...
Resource Type:: Masters Thesis

Relative palatabilities of Great Basin forages and mechanisms elicting selective grazing by cattle

Creator:: Cruz-Guerra, Ruben
Resource Type:: Masters Thesis
Full Text:: stimulates animals to prefer one forage over another. Palatability can include a group of plant species

Conditioning of northern Great Basin grasses with livestock grazing

Creator:: Aguilera, Lisa M.
Abstract:: Because forage quality of cool season grasses declines to sub-maintenance levels for ruminants late in the growing season in the northern Great Basin, there is a need to elevate protein levels and digestibility of grasses for both wild and domestic ruminants in late summer. Anderson and Scherzinger (1975) proposed using...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Numerical classification of range vegetation and statistical analysis of its ecology

The effect of grazing interval on forage quality and production of meadow foxtail

Use of livestock to improve the quality of elk winter range forage in northeastern Oregon

Influence of cattle grazing and forage seeding on establishment of conifers in southwest Oregon

Quality of bluebunch wheatgrass (Agropyron spicatum) as a winter range forage for Rocky Mountain Elk (Cervus elaphus nelsoni) in the Blue Mountains of Oregon

Impact of sheep density and grazing duration on forage use in tall fescue-subclover hill pasture

The impact of grazing on forage quantity, quality and foliar cover of the herbaceous vegetation in the Mamora Cork Oak Forest, Morocco

Heifer performance and drought and grazing effects on flood meadow vegetation

Relative palatabilities of Great Basin forages and mechanisms elicting selective grazing by cattle

Conditioning of northern Great Basin grasses with livestock grazing

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