Index Catalog // ScholarsArchive@OSU

Correlation between structural heterogeneity and arthropod biodiversity : implications for management of Pacific Northwest forests

Creator:: Madson, Stephanie Lee
Abstract:: The "old-growth controversy" in the Pacific Northwest recognized thinning as the primary silvicultural practice for land managers to produce wildlife habitat while continuing to produce timber. For the foreseeable future, forest stands will be harvested to produce forest gaps and a patchwork of trees of different ages. In order to...
Resource Type:: Masters Thesis
Full Text:: 3.18 CCA ordination, Buncom old-growth soil samples, p e r c e n t moisture . . . 83 LIST OF FIGURES

A biological and systematic study of the armored boreid, Caurinus dectes, with comparative notes on related mecoptera

Creator:: Russell, Loren Kenneth
Abstract:: Caurinus dectes Russell is a minute, brachypterous scorpionfly which was discovered at Marys Peak, Benton County, Oregon, in 1976, and subsequently described as the only representative of the subfamily Caurininae within the Boreidae (snow scorpionflies). Caurinus dectes is now known to range from the Olympic Peninsula and Northern Cascades in...
Resource Type:: Dissertation
Full Text:: . Krantz, N. H. Anderson, J. H. Lyford, F. R. Rickson, P. Oman, G. R. Ferguson, and P. S. Dawson. Dr. Oman

Conservation of arthropod natural enemies in broccoli with relay strip-cropping

Creator:: McGrath, Daniel M. (Daniel Morton)
Abstract:: Relay strip-cropping combines two vegetation management tactics, under-sowing and strip-management. In this study conducted from 1994 though 1997, a cover crop seed-mixture containing oats (Avena sativa L. var. "Monida"), common vetch (Vicia sativa L.), red clover (Trifolium pratense L.), annual ryegrass (Lolium multflorum Lam.), and buckwheat (Fagopyrum esculentum Moench) was...
Resource Type:: Dissertation
Full Text:: would also like to thank my graduate committee members Dr. Arnold P. Appleby, Dr. Ralph E. Berry, Dr

A three-trophic-level perspective on factors influencing herbivore abundance on collard

Creator:: McIver, James D.
Abstract:: The influence of natural enemies and plant apparency in determining the abundance of the cabbage aphid Brevicoryne brassicae L. and the imported cabbageworm Pieris rapae L. was examined on collards grown in a collard monoculture and in a collard-alfalfa biculture. This design was used to examine the factors affecting collardherbivore...
Resource Type:: Dissertation
Full Text:: sulphuripes Thom. onto collards were higher in the monoculture, while P. rapae females laid more eggs on

Ground dwelling beetles in early and late successional forests in the western Cascades of Oregon

Creator:: Heyborne, William H.
Abstract:: The effects of forest cutting on forested systems and the biotic components of those systems has been at the forefront of scientific research. The inventory and monitoring of biodiversity is one technique used for measuring the effects of forest management. Because bioinventory studies are expensive, indicator species are often sought...
Resource Type:: Masters Thesis
Full Text:: (n = 9, p = <0.05) in 1999 H.J. Andrews forest succession clear-cut sites ............... 28 2

Management of variegated cutworm in peppermint

Creator:: Coop, Leonard Bryan
Abstract:: A pest management program for variegated cutworm (VC), Peridroma saucia (Hubner), in Oregon peppermint was developed based on studies of pheromone trapping, sampling methods, and economic thresholds. Pheromone traps effectively trapped VC males and were used to reflect development and oviposition trends. Trap height was linearly correlated to moth catch...
Resource Type:: Dissertation
Full Text:: development and oviposition trends. Trap height was linearly correlated to moth catch (P < 0.001); the

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

A revision of the North American species of Pactopus Leconte and Trixagus Kugelann (Coleoptera: Throscidae)

Creator:: Yensen, Arthur Eric
Abstract:: This study was undertaken to find means of separating the morphologically similar species of North American Trixagus and to bring together information on Trixagus and Pactopus. A key to separate the world's eight genera of extant Throscidae is presented for the first time. A key to the five species of...
Resource Type:: Masters Thesis
Full Text:: . D. Lattin, Oregon State University; Drs. J. F. Lawrence and J. P. Darlington, Museum of

Habitat associations of riparian beetles (Coleoptera) at Big Beaver Creek Research Natural Area, North Cascades National Park, Washington

Creator:: LaBonte, James R.
Abstract:: Beetle diversity and habitat associations of five prevalent riparian plant communities were examined along the lower reaches of Big Beaver Creek Research Natural Area, North Cascades National Park, Washington. These communities were defined by dominant tree species, and included Alder Swamps, Cedar-Hemlock Forests, Douglas-fir Forests, Gravel Bars, and Willow-Sedge Swamps....
Resource Type:: Masters Thesis
Full Text:: assemblages" (Glesne et al. 2000, p. i) - In order to meet this charge, basic biodiversity data must first

The influence of light intensity on the phytochemistry of Chrysolepis chrysophylla (Fagaceae) and the relationship to the herbivory of Habrodais grunus herri (Lycaenidae)

Creator:: Bowden, Richard I.
Abstract:: Defensive chemical and nutritive quality of young leaves were measured for 72 individual trees of Chrysolepis [Castanopsis] chrysophylla in conjunction with light intensities of two different stand types and population numbers of Habrodais grunus herri in the Cascade mountains of Oregon. Leaves were collected in the spring and leaf characteristics...
Resource Type:: Masters Thesis
Full Text:: environmental temperature (Casey, 1993; Kimberling and Miller, 1988; Miller et al., 1984), or a combination of

ScholarsArchive@OSU

Correlation between structural heterogeneity and arthropod biodiversity : implications for management of Pacific Northwest forests

A biological and systematic study of the armored boreid, Caurinus dectes, with comparative notes on related mecoptera

Conservation of arthropod natural enemies in broccoli with relay strip-cropping

A three-trophic-level perspective on factors influencing herbivore abundance on collard

Ground dwelling beetles in early and late successional forests in the western Cascades of Oregon

Management of variegated cutworm in peppermint

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

A revision of the North American species of Pactopus Leconte and Trixagus Kugelann (Coleoptera: Throscidae)

Habitat associations of riparian beetles (Coleoptera) at Big Beaver Creek Research Natural Area, North Cascades National Park, Washington

The influence of light intensity on the phytochemistry of Chrysolepis chrysophylla (Fagaceae) and the relationship to the herbivory of Habrodais grunus herri (Lycaenidae)

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