Index Catalog // ScholarsArchive@OSU

Creator:: Toth, Barbara L.
Abstract:: A severe wildfire burned 454 hectares of a second-growth Douglas-fir forest in 1977 on a north-facing slope in Pattee Canyon, near Missoula, Montana. The slope was aerially seeded with a grass mixture, from which Dactylis glomerata established best. Community structure, conifer regeneration, and the impact of the seeded grass on...
Resource Type:: Masters Thesis
Full Text:: -fir forest in 1977 on a north-facing slope in Pattee Canyon, near Missoula, Montana. The slope was

Creator:: Mitchell, Russel Gene
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGMENTS Acknowled~nts should first be made to the Pacific Northwest Forest and Range EXperiment

Creator:: Ryan, Roger B.
Resource Type:: Dissertation
Full Text:: of this insect and of its natural eneries. Still, the study of' the complex interrelationships

Creator:: Cowan, Bruce Dudley
Abstract:: Six species of Cleridae, including Enoclerus spegeus Fabricius, E. lecontei Wolcott, E. schaefferi (Barr), E. eximius Mannerheim, Thanasimus undatulus Say, and an undescribed species of Enoclerus, were found on Douglas-fir in western Oregon. E. sphegeus was the only clerid of the six species studied which was primarily associated with the...
Resource Type:: Masters Thesis
Full Text:: . Kline and Rudinsky (1964) stated, "Because of its abundance and apparent aggressiveness, this insect

Creator:: Burikam, Intawat
Abstract:: The early stages of secondary succession of the McDonald and Paul Dunn State Forests, Corvallis, Oregon, were grouped into three stages; herb, herb-shrub, and shrub, based on vegetation types. Flowers of herbaceous species and residual shrubs dominated in the early years after clear-cutting. Woody plants became increasing abundant in the...
Resource Type:: Dissertation
Full Text:: to early summer and late summer flowering peaks, respectively. Insect pollinators partitioned

Creator:: Premdas, Sharmila
Abstract:: The objective of my study was to examine differences in riparian tree and shrub composition associated with adult aquatic emergence and implications for terrestrial spiders in these sites. Seasonal abundance and biomass of adult emergent aquatic insects, riparian arthropod abundances and spider densities were compared between conifer- and hardwood-dominated sites...
Resource Type:: Masters Thesis

Creator:: Powers, Jennifer Sarah
Abstract:: I developed a conceptual model of Douglas-fir bark beetle dynamics and associated host mortality across spatial and temporal scales. I proposed that a hierarchy of factors influence host resistance to attack at different spatial scales. I then tested this model by measuring the association between the occurrence of beetle-kill and...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Forest Science presented on January 18. Title: Spatial and Temporal

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