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Drift, wood, and grazing cattle : macroinvertebrates in managed streams

Creator:: Reed, T. L.
Abstract:: The importance of active-entry drift at a community-scale was evaluated by testing whether the placement of wood in streams affected the abundance of Baetis spp. mayflies in drift. Baetis were chosen because they use drift as a behavioral strategy and are important in salmonid diets. The density of woody debris...
Resource Type:: Masters Thesis
Full Text:: Drift, wood, and grazing cattle : macroinvertebrates in

Population and production ecology of Lipsothrix spp. (Diptera:Tipulidae)

Creator:: Dudley, Thomas L.
Abstract:: Craneflies of the genus Lipsothrix inhabit decomposing wood in streams. The life cycles and ecological relationships of L. nigrilinea (Doane) and L. fenderi Alexander were investigated to determine how they exploit and respond to the wood habitat and their role in degradation of woody debris in western Oregon. Surveys of...
Resource Type:: Masters Thesis
Full Text:: of the genus Lipsothrix inhabit decomposing wood in streams. The life cycles and ecological

Biological interrelationships between the Ambrosia beetle Xyleborus dispar with its symbiotic fungus Ambrosiella hartigii

Creator:: French, John Richard Joseph
Abstract:: Biological interrelationships between the ambrosia beetle Xyleborus dispar (F.) (Coleoptera:Scolytidae) with its symbiotic fungus, Ambrosiella hartigii Batra (Fungi Imperfecti) were investigated in western Oregon. Postdiapause adults of X. dispar collected in March through June with rotary nets, and excised from overwintered and newly attacked host material, produced a single generation...
Resource Type:: Dissertation
Full Text:: sylvestris (0.34 ±0.005% N by dry weight), attacked wood, "pre-brood" (0.31 ±0.005% N by dry weight) and

Digonichaeta setipennis Fall : a Tachinid parasite of the European earwig, with a study of its introduction, biology and laboratory methods used in rearing in Oregon

Creator:: Dimick, Roland Eugene, 1900-
Resource Type:: Masters Thesis
Full Text:: preraration of this thesis. I also wish to thank Dr. Howard. C. Stearns for teaching me the method.s of

Riparian and adjacent upslope beetle communities along a third order stream in the western Cascade Mountain Range, Oregon

Creator:: Brenner, Gregory John
Abstract:: Monitoring wildlife habitats has become important to forest ecosystem management because it provides valuable information about the response of forests and their species to harvest practices, impacts from recreational use, conservation efforts, and natural and human-caused disturbances. Monitoring is a complex task that requires a variety of abiotic and biotic...
Resource Type:: Dissertation

The commercial propogation and biological studies of two parasites of the codling moth

Creator:: Gillespie, Douglas Grayson
Resource Type:: Masters Thesis
Full Text:: . Howard, former chief of the Bureau of Entomology, says, "So important does their work appear to me that

Life history and control of the grape leaf folder in the San Joaquin Valley, California

Creator:: Kaloostian, George Hagop
Resource Type:: Masters Thesis
Full Text:: . Eggs are not laid upo' dry wood. The grape leaf folder was not strictly confined to the river bottom

Abundance and community composition of arboreal spiders : the relative importance of habitat structure, prey availability and competition

Creator:: Halaj, Juraj
Abstract:: This work examined the importance of structural complexity of habitat, availability of prey, and competition with ants as factors influencing the abundance and community composition of arboreal spiders in western Oregon. In 1993, I compared the spider communities of several host-tree species which have different branch structure. I also assessed...
Resource Type:: Dissertation
Full Text:: abundance of potential spider prey and the amount of foliage and wood biomass (Table 2.5). The number of

Insect pests affecting clover in Oregon

Creator:: Anderson, Ernest Clifford
Resource Type:: Masters Thesis
Full Text:: CLOVER SEED CHALO ID Bruchophagus funebris Howard The clover seed chalcid is a very small wasp-like

Some factors in the development of northwestern entomology

Creator:: Bonnell, Daniel Ernest
Resource Type:: Dissertation
Full Text:: in 1899 that L. 0. Howard, Chief of the Bureau of torno1ogy, selected him to collect parasites of

ScholarsArchive@OSU

Drift, wood, and grazing cattle : macroinvertebrates in managed streams

Population and production ecology of Lipsothrix spp. (Diptera:Tipulidae)

Biological interrelationships between the Ambrosia beetle Xyleborus dispar with its symbiotic fungus Ambrosiella hartigii

Digonichaeta setipennis Fall : a Tachinid parasite of the European earwig, with a study of its introduction, biology and laboratory methods used in rearing in Oregon

Riparian and adjacent upslope beetle communities along a third order stream in the western Cascade Mountain Range, Oregon

The commercial propogation and biological studies of two parasites of the codling moth

Life history and control of the grape leaf folder in the San Joaquin Valley, California

Abundance and community composition of arboreal spiders : the relative importance of habitat structure, prey availability and competition

Insect pests affecting clover in Oregon

Some factors in the development of northwestern entomology

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