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Phylogenetic relationships of the bumblebees (Apidae: Hymenoptera) in the Pacific Northwest of America inferred from mitochondrial cytochrome oxidase gene sequences

Creator:: Pongprasert, Weerathep
Resource Type:: Dissertation
Full Text:: study is to understand the relationships of bumblebees in the Pacific Northwest (PNW) by phylogenetic

Survival of early instars of the western spruce budworm (Choristoneura occidentalis Freeman)

Creator:: Egan, Thomas H.
Resource Type:: Dissertation
Full Text:: . Beckwith, U.S.F.S., PNW Experiment Station, for introducing me to the field of Entomology and for his

Temperature-dependent development of strawberry root weevil Otiorhynchus ovatus (L.)

Creator:: Umble, Jon R.
Abstract:: The temperature-dependent development of pupae and adults of strawberry root weevil (SRW) Otiorhynchus ovatus (L.) was studied in strawberry (Fragaria x ananassa Duch. var. 'Totem'). The development of pupae and adults was investigated at constant temperatures from 3-33°C at 3°C intervals. Major emphasis was on the development of a weighted...
Resource Type:: Masters Thesis
Full Text:: accumulated at temperatures from 1° to 27°C 30 based on regional historical weather data from the PNW 3

Control of mint root borer, Fumibotys fumalis, with the entomopathogenic nematode, Steinernema carpocapsae

Creator:: Takeyasu, Joyce
Resource Type:: Masters Thesis

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
Full Text:: 1993 Ordination Plot 109 23. July 1993 Ordination Plot 110 24. September 1993 Ordination Plot

Sampling and estimating populations of insect seed-predators in coniferous forests

Creator:: Russell, Malcolm Howard
Resource Type:: Masters Thesis

Forest ant composition, relative abundances, and foraging following aerial spraying of carbaryl to suppress Western Spruce budworm

Creator:: Murphy, Christopher F.
Abstract:: An outbreak of western spruce budworm Choristoneura occidentalis in the Blue Mountains of eastern Oregon in 1983 was treated with helicopter applied carbaryl. Effects of the spraying on forest ants were determined from pre- and postspray samples taken from two carbaryl sprayed and two unsprayed plots. In each 0.75-ha plot,...
Resource Type:: Masters Thesis

Soil arthropods in the Central Cascades : slash burning effects and biology of some species

Creator:: Estrada-Venegas, Edith G
Abstract:: Despite the recognized role of soil arthropod fauna on nutrient cycling and decomposition processes, many aspects of the effects of sylvicultural methods in forest ecosystems upon their biology remain poorly understood. The long term effects of prescribed fires on soil arthropods in forest ecosystems in the Pacific Northwest have never...
Resource Type:: Masters Thesis
Full Text:: : Cryptostigmata). USDA. Forest Service, Gen. Tech. Rep. PNW-GTR-217. Morris W.G. 1958. Influence of slash

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

Pollination and pollinators of pumpkin and squash (Cucurbita maxima Duchesne) grown for seed production in the Willamette Valley of western Oregon

Creator:: Gavilánez-Slone, Jenny M.
Abstract:: 'Golden Delicious' winter squash (GDWS), Cucurbita maxima Duchesne, provides significant amounts of pollen (24 mg) and nectar (236 μl), but with a low reward of 14% nectar sugar. The quantity of nectar produced per GDWS flower differed between sites and floral sex. The GDWS male flowers had 25% higher sugar...
Resource Type:: Masters Thesis
Full Text:: the Pacific Northwest. A Pacific Northwest Extension Publication. PNW No. 2667 p. McGregor, S. E

ScholarsArchive@OSU

Phylogenetic relationships of the bumblebees (Apidae: Hymenoptera) in the Pacific Northwest of America inferred from mitochondrial cytochrome oxidase gene sequences

Survival of early instars of the western spruce budworm (Choristoneura occidentalis Freeman)

Temperature-dependent development of strawberry root weevil Otiorhynchus ovatus (L.)

Control of mint root borer, Fumibotys fumalis, with the entomopathogenic nematode, Steinernema carpocapsae

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

Sampling and estimating populations of insect seed-predators in coniferous forests

Forest ant composition, relative abundances, and foraging following aerial spraying of carbaryl to suppress Western Spruce budworm

Soil arthropods in the Central Cascades : slash burning effects and biology of some species

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

Pollination and pollinators of pumpkin and squash (Cucurbita maxima Duchesne) grown for seed production in the Willamette Valley of western Oregon

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