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Effect of adult aquatic insect life history on return to Lookout Creek, H. J. Andrews Experimental Forest, Oregon

Creator:: Farrand, Alexander Mark
Abstract:: Aquatic insects that emerge out of streams to mate represent a potential energy flux to terrestrial food webs. The relative success of an individual aquatic adult insect is whether it survives long enough to produce offspring, i.e. mate and return to the stream to oviposit eggs. Some characteristics of the...
Resource Type:: Masters Thesis

A taxonomic revision of Astragalus mokiacensis and allied taxa within the Astragalus lentiginosus complex of Section Diphysi

Creator:: Alexander, J. Andrew
Abstract:: North America, with over 400 species of Astragalus (Fabaceae), is one of three major centers of diversity, all of which comprise the majority of the nearly 1750 species of Astragalus worldwide. One of the most diverse species, Astragalus lentiginosus of Section Diphysi, is a polymorphic complex of over 40 varieties,...
Resource Type:: Dissertation
Full Text:: THESIS OF J. Andrew Alexander for the degree of Doctor of Philosophy in Botany and Plant Pathology

Genetic diversity of populations of Astragalus oniciformis using inter-simple sequence repeat (ISSR) markers

Creator:: Alexander, J. Andrew
Abstract:: Astragalus oniciformis Barneby is a xerophyte of the sagebrush deserts of central Idaho. It is a narrow endemic of the upper Snake River Plains where it inhabits stabilized, aeolian sand deposits over Quaternary basalt flows. The objective of this study was to determine the levels and distribution of genetic differentiation...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF T. Andrew Alexander for the degree

Life-Cycle and Playability Analysis of Natural Turfgrass and Synthetic Infill Playing Surfaces Under Field Conditions

Creator:: Daviscourt Brian L.
Abstract:: The perception of a long-term cost advantage of synthetic infill turf systems relative to natural grass systems has contributed to a rise in their popularity in the USA. However, few comprehensive cost assessments of natural grass and synthetic infill systems exist. There are also no studies looking at interactions between...
Resource Type:: Masters Thesis
Full Text:: football. BrJSportsMed;35:418–423. Serensits, Thomas J. McNitt, Andrew S. Serochan, John C. 2013

Mapping the thermal climate of the H. J. Andrews Experimental Forest, Oregon

Creator:: Smith, Jonathan W.
Abstract:: The H. J. Andrews Experimental Forest in the Cascades of central Oregon provides a unique opportunity to study spatial climate patterns on a relatively small scale. Historical records at the 64 square-kilometer site provide a spatiallydense 30-year dataset. Thermal regimes at the H. J. Andrews are generally known but the...
Resource Type:: Masters Thesis

A morphometric analysis of geographic variation within Sorex monticolus

Creator:: Alexander, Lois F.
Abstract:: Shrews previously recognized as Sorex monticolus were classified into two species (one with 14 subspecies, the other monotypic) on the basis of a morphometric analysis of 3610 individuals from throughout their range. Sorex m. neomexicanus has been recognized previously as a subspecies of Sorex monticolus but is recognized herein as...
Resource Type:: Masters Thesis
Full Text:: . Alexander Redacted for privacy Redacted for privacy Redacted for privacy ACKNOWLEDGMENTS I thank B. J

Interactions of wind-driven and tidally-driven circulation in the Oregon coastal ocean

Creator:: Osborne, John J.
Abstract:: Influences of tidal and slower (subtidal) oceanic flows over the continental shelf and slope off Oregon are studied using a high-resolution ocean circulation model and comparative model-data analyses. The model is based on the Regional Ocean Modeling System (ROMS), a fully nonlinear, three-dimensional model (using hydrostatic and Boussinesq approximations). The...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF John J. Osborne V

Hybrid computer simulation of wind-driven ocean currents

Creator:: Vithayathil, Francis Joseph
Abstract:: A simulation method using a hybrid computer is developed in this dissertation to enhance the study of wind-driven ocean circulation. The simulation is based on the mathematical model developed by Ekman. Pure digital simulation is not economical due to excessive computer time required for the solution of the partial differential...
Resource Type:: Dissertation
Full Text:: OCEAN CURRENTS Abstract approved: Redacted for privacy Associate Professor Gerald/C. Alexander A

Measurement and modeling the physical controls of snowmelt in the Pacific Northwest

Creator:: Mazurkiewicz, Adam B.
Abstract:: The physical controls of snowmelt in the Pacific Northwest (PNW) are poorly understood. While there have been numerous field and modeling investigations at the plot and watershed scale, few studies have identified how the snow energy balance (EB) components vary in importance both spatially and temporally. The identification of how...
Resource Type:: Masters Thesis
Full Text:: Northwest Abstract approved: —————————————————————————————————— Jeffrey J. McDonnell The

The life history of vine maple on the H. J. Andrews Experimental Forest

Creator:: Russel, David Wright
Abstract:: The objective of this study was to examine the life history of vine maple on the H. J. Andrews Experimental Forest. This study was conducted as a part of an I. B. P. general study of understory biomass and productivity. The specific objectives were to 1) estimate the contribution of...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Effect of adult aquatic insect life history on return to Lookout Creek, H. J. Andrews Experimental Forest, Oregon

A taxonomic revision of Astragalus mokiacensis and allied taxa within the Astragalus lentiginosus complex of Section Diphysi

Genetic diversity of populations of Astragalus oniciformis using inter-simple sequence repeat (ISSR) markers

Life-Cycle and Playability Analysis of Natural Turfgrass and Synthetic Infill Playing Surfaces Under Field Conditions

Mapping the thermal climate of the H. J. Andrews Experimental Forest, Oregon

A morphometric analysis of geographic variation within Sorex monticolus

Interactions of wind-driven and tidally-driven circulation in the Oregon coastal ocean

Hybrid computer simulation of wind-driven ocean currents

Measurement and modeling the physical controls of snowmelt in the Pacific Northwest

The life history of vine maple on the H. J. Andrews Experimental Forest

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