Index Catalog // ScholarsArchive@OSU

Habitat quality and assessing risks to avian biodiversity

Creator:: Barczak, Mary J.
Abstract:: Models that assess the risk to biodiversity from landscape change can help communities prioritize planning decisions. Accurate representation of the ecology and life history traits of species is necessary. This study introduces the use of habitat quality in a biodiversity risk model to determine the significance of habitat quality when...
Resource Type:: Masters Thesis

A choice experiment analysis of public preferences for conservation of biological diversity in the Oregon Coast Range

Creator:: Garber-Yonts, Brian E.
Abstract:: Ecosystem management has become an increasingly mainstream paradigm for natural resource management. Nowhere is this more evident than on the public and private forestland of the Pacific Northwest. While ecosystem management has become a widely accepted principle of resource management, substantial questions remain about its implementation. A case in point...
Resource Type:: Dissertation

Effects of scale properties on biodiversity mapping in Oregon

Creator:: Kennelly, Patrick J., (Patrick Joseph)
Abstract:: The effect of scale is an important concern in mapping of biodiversity. Scale issues include the grid cell size used for analysis and the effect of the extent and internal boundaries. Because biodiversity analysis involves combinatorial processes, determining the proper scale is data dependent and cannot be predicted from the...
Resource Type:: Dissertation

The conceptual development and use of ecoregion classifications

Creator:: Brewer, Isaac
Abstract:: This thesis explores the genesis of the ecoregion concept, examines the conceptual development of ecoregion classification systems, investigates applications of ecoregion classification systems for a broad range of purposes, and discusses the prospects for the further evolution of this concept. An ecoregion is an area that exhibits patterns of homogeneity...
Resource Type:: Masters Thesis

Modeling vertebrate diversity in Oregon using satellite imagery

Creator:: Cablk, Mary E.
Abstract:: Vertebrate diversity was modeled for the state of Oregon using a parametric approach to regression tree analysis. This exploratory data analysis effectively modeled the non-linear relationships between vertebrate richness and phenology, terrain, and climate. Phenology was derived from time-series NOAA-AVHRR satellite imagery for the year 1992 using two methods: principal...
Resource Type:: Dissertation

Supplemental data to "Estimating the Genetic Diversity of Pacific salmon and trout using Multi-gene eDNA Metabarcoding"

Creator:: Weitemier, Kevin A.
Abstract:: This dataset contains DNA sequence data of Oncorhynchus species, isolated from environmental DNA (eDNA) from Pacific Northwest streams via microfluidic eDNA metabarcoding and high-throughput (Ilummina) sequencing (samples collected from 2017-09-22 to 2017-10-10). It is accompanied by scripts and commands for data analyses including: sequence denoising, calculation of entropy values by...
Resource Type:: Dataset

Conservation biology of Plagiobothrys hirtus (Boraginaceae) : evaluation of life history and population enhancement

Creator:: Amsberry, Kelly
Abstract:: Plagiobothrys hirtus (Boraginaceae) is a state and federally listed endangered plant found only in Douglas County, Oregon. This vernal pool endemic has historically been threatened by agricultural conversion of seasonal wetlands in the Sutherlin area, and is currently being eradicated as habitat is lost due to the rapid urban development...
Resource Type:: Masters Thesis
Full Text:: in response to the crisis confronting biological diversity today (Soulé 1985). Made up of population

Analyzing patterns of woody plant richness at multiple spatial scales with modeled photosynthesis

Creator:: Swenson, Jennifer J.
Abstract:: The hump-shaped relationship that predicts highest species richness (species/unit area) at intermediate levels of productivity was examined for woody plants across the Pacific and Inland Northwest of the U.S. Many studies have examined this relationship at regional scales, but commonly use species range maps and surrogate measures of productivity (e.g....
Resource Type:: Dissertation

Using a species-centered approach to examine patterns and drivers of avian species richness in the Rogue Basin, Oregon, A 'bird's eye view' : using a species-centered approach to examine patterns and drivers of avian species richness in the Rogue Basin, Oregon

Creator:: Halstead, Katherine E.
Abstract:: The combined effects of habitat loss, degradation, and fragmentation pose a serious threat to Earth's biodiversity, imperiling even relatively common species. 'Habitat' is necessarily a species-specific concept, and investigations of bird diversity relationships and subsequent efforts to prioritize conservation areas, are challenged by the difficulty of estimating complex habitat gradients...
Resource Type:: Masters Thesis
Full Text:: have broad applicability to spatial conservation prioritization and diversity-ownership

Structuring habitat to conserve ground beetles (Coleoptera: Carabidae) and reduce summer annual weeds in agroecosystems

Creator:: Green, Jessica M.
Abstract:: Weed management in sustainable farming systems often requires the integration of several different pest management techniques. Cultural, biological, and chemical pest control efforts can be utilized to contribute to the common goal of reducing weeds in vegetable row crop systems. This research addresses how common disturbances such as tillage and...
Resource Type:: Masters Thesis
Full Text:: integration of several different pest management techniques. Cultural, biological, and chemical pest

ScholarsArchive@OSU

Habitat quality and assessing risks to avian biodiversity

A choice experiment analysis of public preferences for conservation of biological diversity in the Oregon Coast Range

Effects of scale properties on biodiversity mapping in Oregon

The conceptual development and use of ecoregion classifications

Modeling vertebrate diversity in Oregon using satellite imagery

Supplemental data to "Estimating the Genetic Diversity of Pacific salmon and trout using Multi-gene eDNA Metabarcoding"

Conservation biology of Plagiobothrys hirtus (Boraginaceae) : evaluation of life history and population enhancement

Analyzing patterns of woody plant richness at multiple spatial scales with modeled photosynthesis

Using a species-centered approach to examine patterns and drivers of avian species richness in the Rogue Basin, Oregon, A 'bird's eye view' : using a species-centered approach to examine patterns and drivers of avian species richness in the Rogue Basin, Oregon

Structuring habitat to conserve ground beetles (Coleoptera: Carabidae) and reduce summer annual weeds in agroecosystems

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