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Phylogenomics and Evolution of Ground Beetles, with an Emphasis on the Speciose Tribes Chlaeniini and Bembidiini (Coleoptera: Carabidae)

Creator:: Pflug, James M.
Abstract:: In this dissertation, I investigate the evolution and genomes of carabid beetles, a worldwide family of over 38,000 species. I focus on two species-rich groups, the tribes Chlaeniini and Bembidiini, both of which are primarily found on the shores of bodies of water. The former are distinctive for their defensive...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF James M. Pflug for the degree of Doctor of Philosophy in Integrative Biology

A comparison of the effect of computer-assisted-instruction and same-age peer-tutoring on math achievement of fourth grade students

Creator:: Pflug, Elizabeth A.
Abstract:: A pretest-posttest design was used to compare the effectiveness of computer-assisted-instruction (CAI) drill and practice with the effectiveness of same-age peer-tutor drill and practice on promoting mastery of multiplication facts. The subjects were students from three, fourth grade classes in the Reedville School District of Aloha, Oregon. Two fourth grade...
Resource Type:: Dissertation
Full Text:: THESIS OF Elizabeth A. Pflug for the degree of Doctor of Philosophy in Education presented on April 23

Taxomony and mycorrhizal ecology of the desert truffles in the genus Terfezia

Creator:: Alsheikh, Abdulmagid M.
Abstract:: Mycorrhizal fungi in arid and semiarid rangelands have received little study in southwest Asia and north Africa, although they are important in food production and rangeland productivity. The desert truffles of the genera Terfezia and Tirmania form fruiting-bodies and mycorrhizae with rangeland plants. This thesis treats the taxonomy and the...
Resource Type:: Dissertation
Full Text:: Ecology of the Desert Truffles in the Genus Terfezia. Abstract approved: James M. Trappe

Enzyme activity and phytohormone production of ectomycorrhizal fungi

Creator:: Ho, Iwan
Abstract:: The several thousand fungi known to form ectomycorrhizae have co-evolved with their host plants and have developed impressive physiological and ecological diversity. Exploration of some relationships of enzyme activities and phytohormone production of selected ectomycorrhizal fungi to distribution and tree hosts is reported in this thesis. The data have particular...
Resource Type:: Dissertation

Mycorrhizal fungi and their relationship to plant succession in subalpine habitats

Creator:: Cazares, Efren
Resource Type:: Dissertation
Full Text:: RELATIONSHIP TO PLANT SUCCESSION IN SUBALPINE HABITATS Abstract approved: Dr. James M. Trappe These studies

Soil fungal hyphal dynamics and seasonal hypogeous sporocarp production in western Oregon Douglas-fir forests

Creator:: Hunt, Gary, 1945-
Abstract:: Total length and biomass of fungal mycelium in the soil of a young Douglas-fir stand in the central Oregon Coast Range were estimated over 27 months with the agar-film technique. In a second study, phenology and taxonomy of hypogeous (belowground) sporocarps were studied over 32 months in a nearby, young...
Resource Type:: Dissertation
Full Text:: FORESTS Abstract approved: Redacted for privacy Dr. James M. Trappe Total length and biomass of fungal

Factors affecting the inoculum potential of VA and ectomycorrhizal fungi in forest soils of southwest Oregon and northern California

Creator:: Parke, Jennifer Lee
Resource Type:: Dissertation
Full Text:: thank Dr. James M. Trappe for the opportunity to study the ecology of native mycorrhizal fungi, and Mr

The sequestrate relatives of Russula in Australia and New Zealand

Creator:: Lebel, Teresa
Resource Type:: Dissertation
Full Text:: Australia and New Zealand. Abstract approved: James M. Trappe The sequestrate ectomycorrhizal fungi of

Patterns of ectomycorrhizal host-fungus specificity in the Pacific Northwest

Creator:: Molina, R.
Abstract:: Results from approximately 400 fungus-host pure culture inoculations indicate that specificity of ectomycorrhizal associations is a complex phenomenon and cannot be based solely on field observations of sporocarp-host associations. Of the numerous sporocarp-host specific fungi tested, most formed ectomycorrhizae with one or more unexpected, non-associated hosts. These results conclusively demonstrate...
Resource Type:: Dissertation
Full Text:: HOST-FUNGUS SPECIFICITY IN THE PACIFIC NORTHWEST Redacted for Privacy Abstract approved: Dr. James M

The mycorrhizal associations of western hemlock

Creator:: Kropp, Bradley Ray
Abstract:: Two objectives of this research were to identify fungi which are mycorrhizal with western hemlock and to examine the ecology of hemlock mycorrhizal fungi indigenous to outplanting sites. Another objective was to evaluate the effectiveness of mycorrhizal inoculation in improving the performance of outplanted hemlock seedlings. A list of over...
Resource Type:: Dissertation
Full Text:: approved: Dr. James M. Trappe Two objectives of this research were to identify fungi which are

ScholarsArchive@OSU

Phylogenomics and Evolution of Ground Beetles, with an Emphasis on the Speciose Tribes Chlaeniini and Bembidiini (Coleoptera: Carabidae)

A comparison of the effect of computer-assisted-instruction and same-age peer-tutoring on math achievement of fourth grade students

Taxomony and mycorrhizal ecology of the desert truffles in the genus Terfezia

Enzyme activity and phytohormone production of ectomycorrhizal fungi

Mycorrhizal fungi and their relationship to plant succession in subalpine habitats

Soil fungal hyphal dynamics and seasonal hypogeous sporocarp production in western Oregon Douglas-fir forests

Factors affecting the inoculum potential of VA and ectomycorrhizal fungi in forest soils of southwest Oregon and northern California

The sequestrate relatives of Russula in Australia and New Zealand

Patterns of ectomycorrhizal host-fungus specificity in the Pacific Northwest

The mycorrhizal associations of western hemlock

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