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Synergistic effects of wild ungulates and management intensification suppress native plants and promote exotics - Dataset

Creator:: Stokely, Thomas D.
Abstract:: This dataset consists of native and exotic plant species metrics, including cover, richness, relative abundance and responses to the exclusion of wild ungulates and herbivory. The data were used for the manuscript: "Synergistic effects of wild ungulates and management intensification suppress native plants and promote exotics", published in the journal...
Resource Type:: Dataset

Quantification of vegetation diversity and variation on intact and degraded rangelands

Creator:: Dysart, Patricia L.
Abstract:: Vegetation diversity in the Wyoming big sagebrush/Thurber needlegrass (Artemisia tridentata Nutt. ssp. wyomingensis Beetle & Young/Achnatherum thurberianum (Piper) Barkworth. syn. Stipa thurberiana Piper) plant association was studied across a condition class gradient in southeastern Oregon. All observable vascular plant species were counted during 6 seasons and 2 years and diversity...
Resource Type:: Dissertation
Full Text:: plant species were counted during 6 seasons and 2 years and diversity indices were calculated using

Landscape level patterns in biodiversity : plant species and biomass structure

Creator:: Heider, Christopher
Abstract:: In the tropics, widespread deforestation and conversion of primary forests to agricultural and pasture lands has resulted in losses of composition, structure, and functions of forest landscapes. Deforestation in the tropics is typically preformed via slash-and-burn practices; the byproducts from combustion have been identified as the second-highest form of anthropogenically...
Resource Type:: Masters Thesis
Full Text:: plant species accompanies this loss in forest structure. Biological diversity has been described as

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

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Creator:: Duncan, Corinne M.
Abstract:: Expansion of Juniperus occidentalis into the sagebrush steppe has resulted in significant changes in understory composition. A consequence of increased J. occidentalis dominance may be a depletion of the seed bank. The potential for depletion is problematic because a reduction in the amount of species available from the seed bank...
Resource Type:: Masters Thesis
Full Text:: the diversity of weedy species increase along a gradient of J. occidentalis cover; and 3) does seed

Functional groups, traits, and the performance of species in restoration

Creator:: Roberts, Rachael E. (Rachael Elaine)
Abstract:: In ecological restoration, species that are sown to increase the native plant diversity range in establishment ability. Some species readily establish, while others rarely do. This study set out to investigate some of the potential processes influencing species establishment, as well as the traits that are associated with the success...
Resource Type:: Masters Thesis
Full Text:: are sown to increase the native plant diversity range in establishment ability. Some species

Green-tree retention and ectomycorrhiza legacies : the spatial influences of retention trees on mycorrhiza community structure and diversity

Creator:: Stockdale, Christopher A.
Abstract:: These studies are part of the Demonstration of Ecosystem Management Options (DEMO) study, a program researching the effects of different levels and patterns of green-tree retention on ecological, economic, and social phenomena. We restricted our studies to the 15% basal area, evenly dispersed retention treatment. Our objectives were, first, to...
Resource Type:: Masters Thesis
Full Text:: Mycorrhiza Community Structure and Diversity. Abstract approved: -~-~--~~~---~-------- Signature redacted

Using percentile regression for estimating the maximum species richness line

Creator:: Qadir, Mohammad F.
Resource Type:: Dissertation

Statistical aspects of two measurement problems : defining taxonomic richness and testing with unanchored responses

Creator:: Ritter, Kerry
Abstract:: Statisticians often focus on sampling or experimental design and data analysis while paying less attention to how the response is measured. However, the ideas of statistics may be applied to measurement problems with fruitful results. By examining the errors of measured responses, we may gain insight into the limitations of...
Resource Type:: Dissertation
Full Text:: diversity. Plafkin et al. (1989) cite other researchers who have supported 100 count subsampling as

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

ScholarsArchive@OSU

Synergistic effects of wild ungulates and management intensification suppress native plants and promote exotics - Dataset

Quantification of vegetation diversity and variation on intact and degraded rangelands

Landscape level patterns in biodiversity : plant species and biomass structure

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

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Functional groups, traits, and the performance of species in restoration

Green-tree retention and ectomycorrhiza legacies : the spatial influences of retention trees on mycorrhiza community structure and diversity

Using percentile regression for estimating the maximum species richness line

Statistical aspects of two measurement problems : defining taxonomic richness and testing with unanchored responses

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

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