Index Catalog // ScholarsArchive@OSU

Effects of tillage and cropping system on Hessian fly densities in small grains of Central Washington

Creator:: Elberson, L. R., Clement, S. L., Young, F. L., and Youssef, N. N.
Resource Type:: Conference Proceeding
Full Text:: n fly in fe sta tio ns ,R als to n Pr oj ec t, 19 98 ,1 99 9 an d2 00 0. Pl ot 1 C ro pp in g Sy st

High-resolution ⁴⁰Ar/³⁹Ar dating of the oldest oceanic basement basalts in the western Pacific basin

Creator:: Koppers, Anthony A. P., Staudigel, Hubert, and Duncan, Robert A.
Abstract:: We report new ⁴⁰Ar/³⁹Ar ages for the oldest Pacific oceanic floor at Ocean Drilling Program Site 801C in the Pigafetta basin and Site 1149D close to the Izu-Bonin subduction zone in the Nadezhda basin. These ages were determined by applying high-resolution incremental heating experiments (including 15–30 heating steps) to better...
Resource Type:: Article
Full Text:: S p ec tr u m T o ta l F u si o n In v er se Is o ch ro n A n al y se s A g e ± 2 s, M a 3 9 A

Analysis of Stability and Dispersion in a Finite Element Method for Debye and Lorentz Dispersive Media

Creator:: Banks, H. T., Bokil, V. A., and Gibson, N. L.
Abstract:: We study the stability properties of, and the phase error present in, a finite element scheme for Maxwell’s equations coupled with a Debye or Lorentz polarization model. In one dimension we consider a second order formulation for the electric field with an ordinary differential equation for the electric polarization added...
Resource Type:: Article

The Saharan Air Layer and the Fate of African Easterly Waves—NASA's AMMA Field Study of Tropical Cyclogenesis

Creator:: Zipser, Edward J., Twohy, Cynthia, Tsay, Si-Chee, Thornhill, K. Lee, Tanelli, Simone, Ross, Robert, Krishnamurti, T. N., Ji, Q., Jenkins, Gregory, Ismail, Syed, Hsu, N. Christina, Hood, Robbie, Heymsfield, Gerald M., Heymsfield, Andrew, Halverson, Jeffrey, Goodman, H. Michael, Ferrare, Richard, Dunion, Jason P., Douglas, Michael, Cifelli, Robert, Chen, Gao, Browell, Edward V., and Anderson, Bruce
Abstract:: In 2006, NASA led a field campaign to investigate the factors that control the fate of African easterly waves (AEWs) moving westward into the tropical Atlantic Ocean. Aircraft and surface-based equipment were based on Cape Verde's islands, helping to fill some of the data void between Africa and the Caribbean....
Resource Type:: Article
Full Text:: ( so la r, IR , m ic ro w av e) , sp ec tr om et er , l id ar , m et eo ro lo gi ca l

Humpback whales (Megaptera novaeangliae) in the South Pacific breeding grounds : an allocation from feeding areas and an abundance estimate of whales specific to French Polynesia waters

Creator:: Gibb, Giselle Renee
Abstract:: South Pacific humpback whales were devastated by commercial whaling in their Antarctic feeding areas during the 20th century. Understanding migratory connections and current abundance of these isolated breeding stocks is crucial for the allocation of historical Antarctic catches in population dynamic models used to assess current recovery. However, only a...
Resource Type:: Masters Thesis

2000 Seed production research at Oregon State University, USDA-ARS cooperating

Creator:: United States. Agricultural Research Service, Oregon State University. Department of Crop Science, and Young, William C.
Resource Type:: Other
Full Text:: Extension Service, EC 1478. 7 cessive (>30 ppm) levels. Using this criteria, all the sites had low to

Predators associated with hemlock woolly adelgid (Hemiptera: Adelgidae) infested western hemlock in the Pacific Northwest.

Creator:: Kohler, Glenn R.
Abstract:: The hemlock woolly adelgid, Adelges tsugae, is causing widespread mortality of eastern hemlock, Tsuga canadensis, in the eastern United States. In the West, A. tsugae causes negligible damage to western hemlock, Tsuga heterophylla. Host tolerance traits and presence of endemic predators may be contributing to the relative tolerance of western...
Resource Type:: Masters Thesis

SeaSoar observations during the Coastal Ocean Advances in Shelf Transport (COAST) mesoscale survey I : R/V Wecoma cruise from 23 May to 13 June 2001

Creator:: O'Malley, Robert T., Barth, John A., and Erofeev, Anatoli Y.
Abstract:: As part of the Coastal Ocean Processes (CoOP) project Coastal Ocean Advances in Shelf Transport (COAST), this was the first of two cruises in 2001 to study cross-shelf transport processes in a wind-driven coastal ocean. The project includes field experiments off the Oregon coast and coordinated ocean circulation/ecosystem and atmospheric...
Resource Type:: Technical Report
Full Text:: in the SeaSoar to 20 meters of towing cable, but the power was soon restored (1328). We then

Zooplankton of the Galapagos Islands

Creator:: Figueroa, Diego
Abstract:: The marine climate of the Galapagos is spatially and seasonally heterogeneous. A taxonomically comprehensive study of Galapagos zooplankton has never been done. This study is an initial effort to establish the distribution and community structure of zooplankton in the Archipelago. I collected zooplankton samples by vertical tows over the Galapagos...
Resource Type:: Dissertation
Full Text:: …………………………………. 201 71. Pseudocyclops 50% majority rule consensus tree generated from 1328 most parsimonius trees

Incubation patterns, parental roles, and nest survival of black oystercatchers (Haematopus bachmani) : influences of environmental processes and potential disturbance stimuli

Creator:: Spiegel, Caleb S.
Abstract:: Shorebirds display great variation in mating systems and breed in dynamic environments that are increasingly subject to human threats worldwide. In order to adequately assess productivity and demography of shorebird populations, it is important to understand factors that influence patterns of parental care and reproductive success. The Black Oystercatcher (Haematopus...
Resource Type:: Masters Thesis
Full Text:: breeding of Black Oystercatchers. Journal of Wildlife Management 61: 1322-1328. Andres, B.A. 1998a

ScholarsArchive@OSU

Effects of tillage and cropping system on Hessian fly densities in small grains of Central Washington

High-resolution ⁴⁰Ar/³⁹Ar dating of the oldest oceanic basement basalts in the western Pacific basin

Analysis of Stability and Dispersion in a Finite Element Method for Debye and Lorentz Dispersive Media

The Saharan Air Layer and the Fate of African Easterly Waves—NASA's AMMA Field Study of Tropical Cyclogenesis

Humpback whales (Megaptera novaeangliae) in the South Pacific breeding grounds : an allocation from feeding areas and an abundance estimate of whales specific to French Polynesia waters

2000 Seed production research at Oregon State University, USDA-ARS cooperating

Predators associated with hemlock woolly adelgid (Hemiptera: Adelgidae) infested western hemlock in the Pacific Northwest.

SeaSoar observations during the Coastal Ocean Advances in Shelf Transport (COAST) mesoscale survey I : R/V Wecoma cruise from 23 May to 13 June 2001

Zooplankton of the Galapagos Islands

Incubation patterns, parental roles, and nest survival of black oystercatchers (Haematopus bachmani) : influences of environmental processes and potential disturbance stimuli

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