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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:: committee members, Aaron Liston, David Pyke, and Robert Meinke for their valuable advice and guidance

Factors affecting establishment and germination of upland prairie species of conservation concern in the Willamette Valley, Oregon

Creator:: Jones, Katherine D.
Abstract:: Identifying mechanisms that determine who lives and dies is the first step in developing successful restoration techniques for rare species and endangered habitats. We studied interactions that affect establishment of native plant forbs of conservation concern at the seedling stage to support the theoretical basis for restoration activities in Pacific...
Resource Type:: Masters Thesis
Full Text:: me with the local flora and helping me develop as a teacher, and committee member Dave Pyke who was

Conservation biology of Perideridia erythrorhiza (Apiaceae) : experimental reintroduction and life history

Creator:: Roberts, Kimberly A.
Abstract:: An experimental reintroduction was performed to determine the best method to create new populations of the tuberous species Perideridia erythrorhiza, a rare vascular plant endemic to southern Oregon. Only a handful of sites are currently present, and many of these are subject to other land uses such as urban development...
Resource Type:: Masters Thesis
Full Text:: , for their support and advice: Robert Meinke, David Pyke, and Aaron Liston. 11 TABLE OF

Population monitoring protocol for Silene rectiramea (Grand Canyon campion) in Grand Canyon National Park

Creator:: Hakanson, Ahsa I.
Abstract:: Silene rectiramea (Grand Canyon campion) is a rare endemic plant species found only in Grand Canyon National Park. There is limited biological and ecological information available about this plant species and the extent of its distribution is unknown. Silene rectiramea is currently not included in a National Park Service monitoring...
Resource Type:: Capstone Project

Resource Selection, and Demographic Rates of Female Greater Sage-Grouse Following Large-Scale Wildfire

Creator:: Foster, Lee
Abstract:: Understanding the effects of habitat disturbance on a species' habitat selection patterns, and demographic rates, is essential to projecting the trajectories of populations affected by disturbance, as well as for determining the appropriate conservation actions needed to maintain those populations. Greater sage-grouse (Centrocercus urophasianus) is a species of conservation concern...
Resource Type:: Masters Thesis
Full Text:: wouldn’t have been nearly as much fun. Thank you to my Graduate Committee: Drs. Dave Pyke, and Jim Rivers

Establishing native plants in crested wheatgrass stands using successional management

Creator:: Fansler, Valerie A.
Abstract:: Crested wheatgrass (Agropyron cristatum (L.) Gaertn.) is a nonindigenous perennial grass that was introduced to North America to improve the condition of degraded rangelands. It has proven to be a successful revegetation species due to its superior ease of establishment, strong competitive ability, and ability to tolerate grazing. However, crested...
Resource Type:: Masters Thesis
Full Text:: like to thank my committee: Dr. Michael Borman, Dr. David Pyke and Dr. James Males for their helpful

Development and application of a resource selection model for pygmy rabbits

Creator:: Meisel, Jennifer K.
Abstract:: Pygmy rabbits (Brachylagus idahoensis) in Oregon and Washington are a sagebrush (Artemisia tridentata spp.) obligate species of concern because of declining populations and extirpation from much of their range. Efforts are underway to establish a captive bred population of the Columbia Basin pygmy rabbit in Washington state for reintroduction into...
Resource Type:: Masters Thesis
Full Text:: Dave Pyke. I also thank Heidi Newsome, Kelly Hogan, and Dave Smith for their encouragement, advice

The Influence of Wildfire and Invasive Vegetation on Mule Deer

Creator:: Schuyler, Elizabeth
Abstract:: The western United States has experienced large-scale degradation due to land use and land cover changes, invasion of annual grasses, and expansion of woody plants into grass and shrublands and the resultant altered fire regimes. These landscape-scale changes have coincided with declining mule deer (Odocoileus hemionus) populations, making habitat loss...
Resource Type:: Dissertation
Full Text:: encouragement for my professional development as a wildlife biologist. I would also like to thank David Pyke

Greater Sage-Grouse Demography, Habitat Selection, and Habitat Connectivity in Relation to Western Juniper and its Management

Creator:: Olsen, Andrew C.
Abstract:: The expansion of native, woody plants is a global phenomenon with characteristics and effects that are often indistinguishable from exotic invasions. These expansions have largely been driven by altered fire regimes and favorable climatic conditions. In the Great Basin of western North America, expansion of conifers such as western juniper...
Resource Type:: Dissertation

The effects of native plants on non-native plant abundance in a restoration setting : differences among native species and the predictive ability of species traits

Creator:: Goodridge, Jennifer M.
Abstract:: Reducing the cover of non-native species is one of the challenges of ecosystem restoration. The goal of this study is to identify native species traits that will increase native species cover and reduce non-native species cover in the first growing season at upland and wetland prairie restoration sites. Native and...
Resource Type:: Masters Thesis
Full Text:: thank the members of my committee, Dr. Mary E. Kentula, Dr. David Pyke, and Dr. Michael Unsworth for

ScholarsArchive@OSU

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

Factors affecting establishment and germination of upland prairie species of conservation concern in the Willamette Valley, Oregon

Conservation biology of Perideridia erythrorhiza (Apiaceae) : experimental reintroduction and life history

Population monitoring protocol for Silene rectiramea (Grand Canyon campion) in Grand Canyon National Park

Resource Selection, and Demographic Rates of Female Greater Sage-Grouse Following Large-Scale Wildfire

Establishing native plants in crested wheatgrass stands using successional management

Development and application of a resource selection model for pygmy rabbits

The Influence of Wildfire and Invasive Vegetation on Mule Deer

Greater Sage-Grouse Demography, Habitat Selection, and Habitat Connectivity in Relation to Western Juniper and its Management

The effects of native plants on non-native plant abundance in a restoration setting : differences among native species and the predictive ability of species traits

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