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Ecology of populations of Van Dyke's salamanders in the Cascade Range of Washington State

Creator:: McIntyre, Aimee P.
Abstract:: The Van Dyke's salamander (Plethodon vandyke,) is a rare species endemic to Washington State. It has been found in cool moist microhabitats along streams, splash zones of waterfalls, and headwater seeps. We explored the association of the Van Dyke's salamander with hydrologic condition, geomorphology, disturbance characteristics, and vegetation structure in...
Resource Type:: Masters Thesis
Full Text:: . CONTRIBUTION OF AUTHORS Dr. Richard A. Schmitz and Charlie M. Crisafulli were involved in the design, analysis

Avian communities in relation to habitat influenced by fire in a sagebrush steppe landscape

Creator:: Noson, Anna C.
Abstract:: Fire suppression in high-elevation sagebrush steppe over the last century has profoundly influenced the structure and complexity of vegetation communities. Although fire is the primary management tool used to restore these areas, the impact of this management practice on associated avian communities is poorly understood. We examined patterns of habitat...
Resource Type:: Masters Thesis
Full Text:: their guidance and support. T am particularly grateful to Richard A. Schmitz and Richard F. Miller for

Ecology of Columbian black-tailed deer fawns in western Oregon

Creator:: Pamplin, Nathan P.
Abstract:: Little is known about Columbian black-tailed deer (Odocoileus hemionus columbianus) because of their elusive nature and the logistical difficulty of studying them in densely forested and mountainous terrain. The Oregon Department of Fish and Wildlife has identified fawn survival as an important gap in the current knowledge of demography and...
Resource Type:: Masters Thesis
Full Text:: expresses sincere appreciation to Drs. Richard A. Schmitz and DeWaine H. Jackson, the co-principal

Coming of age in rural America : sense of purpose, coping, and perceived progress toward adulthood

Creator:: Dolenc, Brooke J.
Abstract:: Individuals in their 20s today have more diverse experiences with school, work, and family transitions than previous cohorts. Contemporary young adults take longer to finish school, settle into marriages or partnerships, and begin parenting; they frequently change jobs or hold multiple part-time positions. Little is known about how young adults...
Resource Type:: Masters Thesis
Full Text:: Progress toward Adulthood Abstract approved: Richard A. Settersten, Jr

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:: approved:_____________________________________________________ Richard A. Schmitz Pygmy

White-breasted nuthatch density and nesting ecology in oak woodlands of the Willamette Valley, Oregon

Creator:: Viste-Sparkman, Karen
Abstract:: Habitat loss causes a reduction in available resources for wildlife, alters the configuration of remaining habitat, and may isolate wildlife populations. White-breasted nuthatches (Sitta carolinensis) are experiencing long-term population declines in the Willamette Valley of Oregon, where they are historically associated with oak woodlands. As secondary cavity-nesters, white-breasted nuthatches may...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: __________________________________________________________________ Richard A

Biodiversity in managed forests of western Oregon : species assemblages in leave islands, thinned, and unthinned forests

Creator:: Wessell, Stephanie J.
Abstract:: Both leave islands, or green tree retention clusters, and thinning prescriptions have been proposed as alternative silvicultural strategies designed to sustain the structural and biological diversity of managed forests. However, the relationship of the physical structure of leave islands and thinned forests to their associated microclimates, flora, and fauna remain...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Deanna H. Olson Richard A. Schmi{zj Both leave islands, or green tree retention

Movement and demography of larval coastal giant salamanders (Dicamptodon tenebrosus) in streams with culverts in the Oregon Coast Range

Creator:: Sagar, Jina P.
Abstract:: Barriers to the movement of aquatic organisms can increase the genetic and spatial isolation of populations and may decrease the viability of these regional populations. Focus on culvert passage issues has increased as federal agencies attempt to inventory and replace road-crossing stream culverts that are barriers to the movement of...
Resource Type:: Masters Thesis

Comparing the effectiveness of virtual and traditional forestry field tours

Creator:: Easley, Elissa C.
Abstract:: Virtual tours are among the many new Internet-based tools with potential applications as continuing forestry education programs. While technology exists to create virtual tour websites, little is understood about how well they meet educational objectives and whether they are complementary alternatives to traditional field tours. The Sustainable Forestry Partnership and...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: __ 1"-,--------.___--------------- Richard A. Fletcher Signature redacted for privacy

ScholarsArchive@OSU

Ecology of populations of Van Dyke's salamanders in the Cascade Range of Washington State

Avian communities in relation to habitat influenced by fire in a sagebrush steppe landscape

Ecology of Columbian black-tailed deer fawns in western Oregon

Coming of age in rural America : sense of purpose, coping, and perceived progress toward adulthood

Development and application of a resource selection model for pygmy rabbits

White-breasted nuthatch density and nesting ecology in oak woodlands of the Willamette Valley, Oregon

Biodiversity in managed forests of western Oregon : species assemblages in leave islands, thinned, and unthinned forests

Movement and demography of larval coastal giant salamanders (Dicamptodon tenebrosus) in streams with culverts in the Oregon Coast Range

Comparing the effectiveness of virtual and traditional forestry field tours

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