Index Catalog // ScholarsArchive@OSU

Total synthesis of (+)-bourgeanic acid and conformational analysis of its dilactone

Creator:: Johnson, Alan T. (Alan Thomas), 1957-
Resource Type:: Dissertation
Full Text:: lichen is described. An interesting property exhibited by 1 is the facile cyclization under mild

Lichen response to the environment and forest structure in the western Cascades of Oregon

Creator:: Martin, Erin P.
Abstract:: Lichens are an important part of the biota in western Oregon forests, where they perform valuable ecological roles and contribute significantly to biodiversity. Lichens in western Oregon are threatened by a number of factors including air pollution and land use practices. If we wish to maintain the persistence of lichens...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Botany and Plant Pathology presented on June 30. 2005. Title: Lichen

Cryptogam communities in forest and steppe ecosystems of Oregon, USA

Creator:: Root, Heather T.
Abstract:: I focus on addressing knowledge gaps relating to management of cryptogams in Oregon's public lands in Pseudotsuga menziesii-Tsuga heterophylla forests on the west side of the Cascade Range and dryland steppe in the Cascade Range's rainshadow. While a great deal of research has illustrated the importance of late-successional forests for...
Resource Type:: Dissertation
Full Text:: lichen hotspots with canopy gaps, old-growth remnants, and wolf trees (for details, see Neitlich

Lichen Studies of Tropical Dry Forest: A Systematic and Ecological Approach

Creator:: Miranda-González, Ricardo
Abstract:: In recent years, our ecological knowledge of tropical dry forests has increased dramatically. However, whole components of the ecosystem, like lichenized fungi, remain mostly unknown. Crustose lichens in these forests are so abundant, that they are responsible for the characteristic appearance of a “white bark forest” during the dry season....
Resource Type:: Dissertation
Full Text:: lichens are the dominant growth form. In Chapter 5, the lichen consumption component of herbivory

Biological Soil Crusts of the Great Basin : An Examination of their Distribution, Recovery from Disturbance and Restoration

Creator:: Condon, Lea A.
Abstract:: We are at risk of losing the sagebrush steppe in the floristic Great Basin to the invasion of Bromus tectorum L., cheatgrass. The floristic Great Basin includes the Central Basin and Range, the Northern Basin and Range, and the Snake River Plain. The Great Basin receives most of its precipitation...
Resource Type:: Dissertation
Full Text:: disturbance were true in the Great Basin. I found that cover of the lichen component of biocrusts was

Modeling phyllochron in wheat and barley

Creator:: Cao, Weixing
Abstract:: An understanding of the effect of environment on phyllochron (degree-days between two successive leaves) is necessary to model cereal crop canopy growth. This study was designed to investigate the relationships of phyllochron to temperatures and daylengths in winter wheat (Triticum aestivum L.) and spring barley (Hordeum vulgare L.). A series...
Resource Type:: Dissertation
Full Text:: successive leaves) is necessary to model cereal crop canopy growth. This study was designed to investigate

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Creator:: Peterson, Eric B.
Abstract:: The diverse lichen flora of the Pacific Northwest is being impacted by population growth and by forest management practices. Accumulating information about our lichen flora will improve our conservation strategies. This dissertation first collects information to improve our understanding of how lichen communities vary among forests of differing structure, and...
Resource Type:: Dissertation
Full Text:: . McCune The diverse lichen flora of the Pacific Northwest is being impacted by population growth and by

Community gradients of Arctic macrolichens in relation to succession, grazing and the environment

Creator:: Holt, Emily A.
Abstract:: The purpose of this dissertation was to define macrolichen community gradients in relation to succession, grazing and the environment. First, species scores indicating when macrolichen species appeared following disturbance were derived from the literature. Weighted averaging of these data with a community matrix created a successional score for each sample...
Resource Type:: Dissertation
Full Text:: based on lichen growth rates (Ahti 1959; Vasander 1981) and descriptions of succession in the

Physiology, quality, and agronomic performance of snap beans (Phaseolus vulgaris L.) and spring wheat (Triticum aestivum L.) as affected by environment and several plant growth regulators

Creator:: Hile, Mahlon Malcolm Schallig
Abstract:: Experiments were conducted to determine the effect of environment and several plant growth regulators on the physiology, quality, and agronomic performance of snap beans (Phaseolus vulgaris L. ) and spring wheat (Triticum aestivum L. ). The potassium salts of naphthenic acid and cyclohexanecarboxylic acid, received particular attention. Application of potassium...
Resource Type:: Dissertation
Full Text:: several plant growth regulators AN ABSTRACT OF THE THESIS OF Mahlon Malcolm Schallig Hi le for the

Direct-maternal genetic correlations for preweaning growth in Hereford cattle

Creator:: Tewolde, Assefaw
Resource Type:: Dissertation
Full Text:: Direct-Maternal Genetic Correlations for Preweaning Growth

ScholarsArchive@OSU

Total synthesis of (+)-bourgeanic acid and conformational analysis of its dilactone

Lichen response to the environment and forest structure in the western Cascades of Oregon

Cryptogam communities in forest and steppe ecosystems of Oregon, USA

Lichen Studies of Tropical Dry Forest: A Systematic and Ecological Approach

Biological Soil Crusts of the Great Basin : An Examination of their Distribution, Recovery from Disturbance and Restoration

Modeling phyllochron in wheat and barley

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Community gradients of Arctic macrolichens in relation to succession, grazing and the environment

Physiology, quality, and agronomic performance of snap beans (Phaseolus vulgaris L.) and spring wheat (Triticum aestivum L.) as affected by environment and several plant growth regulators

Direct-maternal genetic correlations for preweaning growth in Hereford cattle

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