Index Catalog // ScholarsArchive@OSU

Habitat associations of bird communities in shrub-steppe and western juniper woodlands

Creator:: Reinkensmeyer, Daniel P.
Abstract:: The encroachment of western juniper into mountain big sagebrush plant communities and the subsequent development of juniper stands results in significant changes in vegetation structure and complexity. This study described and compared vegetative structure and bird community measures among four cover types representing a broad range of structural stages among...
Resource Type:: Masters Thesis

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:: southeastern Oregon. During the 2000 breeding season, we determined bird distribution and abundance using a

Greater sage-grouse movements and habitat use during winter in central Oregon

Creator:: Bruce, Jennifer R.
Abstract:: Greater sage-grouse (Centrocercus urophasianus), a sagebrush obligate species, has contracted in extent by nearly half its original distribution. This is primarily due to habitat loss and degradation over the past 150 years. During winter, sage-grouse depend completely on sagebrush habitat for food and cover, yet sage-grouse winter ecology has been...
Resource Type:: Masters Thesis
Full Text:: Oregon Abstract approved:______________________________________________________ W. Douglas

Riparian bird communities in Portland, Oregon : habitat, urbanization, and spatial scale patterns

Creator:: Hennings, Lori A.
Abstract:: Urban ecosystems are characterized by human disturbance and changes in the amount, types, and spatial arrangement of wildlife habitat. The relative importance of habitat and human associated variables to urban birds is unknown. In 1999, I surveyed spring bird and plant communities along 54 perennial streams in the Portland, Oregon...
Resource Type:: Masters Thesis
Full Text:: , 2001. Title: Riparian Bird Communities in Portland, Oregon: Habitat. Urbanization, and Spatial Scale

Influences of salvage logging on forest birds after fire in the eastern Cascades, Oregon

Creator:: Cahall, Rebecca E.
Abstract:: Previous research examining the influences of post-fire salvage logging on abundances of birds has focused primarily on the response of cavity-nesting species. There is limited research in regard to the impact of salvage logging on a broader range of bird species. In addition, little is known about how different intensities...
Resource Type:: Masters Thesis
Full Text:: . Meslow. 1983. Bird community structure on early-growth clearcuts in western Oregon. American Midland

Conserving avian diversity in agricultural systems : the role of isolated Oregon white oak legacy trees

Creator:: DeMars, Craig A.
Abstract:: Over one third of the earth’s land surface has been modified to some extent for agricultural purposes. The large global footprint of agriculture, combined with the knowledge that existing reserve networks are likely insufficient for long-term conservation of native biodiversity, has necessitated that agricultural systems contribute to conservation of native...
Resource Type:: Masters Thesis
Full Text:: . Title: Conserving Avian Diversity in Agricultural Systems: the Role of Isolated Oregon White Oak Legacy

Multiscale relationships of wintering birds with riparian and wetland habitat in the Willamette Valley, Oregon

Creator:: Adamus, Paul R.
Abstract:: Relatively little is known about wintering bird communities in lowlands of the Pacific Northwest, yet, the condition of winter habitats potentially can pose a major constraint on bird populations. I initiated a study to determine: (1) Which avian species use lowland riparian and wetland habitats in the Willamette Valley during...
Resource Type:: Dissertation
Full Text:: Relationships of Wintering Birds with Riparian and Wetland Habitat in the Willamette Valley, Oregon Abstract

Snag longevity, bird use of cavities, and conifer response across three silvicultural treatments in the Oregon Coast Range

Creator:: Walter, Scott T.
Abstract:: In the interest of meeting multiple forest management goals that include maintenance of wildlife, particularly cavity-nesting birds, uneven-aged silvicultural treatments are used increasingly in the Pacific Northwest. However, questions remain regarding the responses of cavity-nesting birds and residual green trees to different harvest intensities and patterns. To study these issues,...
Resource Type:: Masters Thesis
Full Text:: , Bird Use of Cavities, and Conifer Response Across Three Silvicultural Treatments in the Oregon Coast

Seasonal dynamics of a riparian food web in the Oregon Coast Range mountains

Creator:: Robillard, Amanda Lynn
Abstract:: Riparian areas are eco-tones where aquatically- and terrestrially-derived insect biomass is exchanged between habitats, presenting consumers with new sources of energy, and resulting in a reciprocal subsidy. The relative contribution of energy exchange and the resulting impacts on vertebrate riparian consumers, such as fish or birds, remains poorly understood. We...
Resource Type:: Masters Thesis
Full Text:: Science presented on May 3, 2006. Title: Seasonal Dynamics of a Riparian Food Web in the Oregon Coast

ScholarsArchive@OSU

Habitat associations of bird communities in shrub-steppe and western juniper woodlands

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

Greater sage-grouse movements and habitat use during winter in central Oregon

Riparian bird communities in Portland, Oregon : habitat, urbanization, and spatial scale patterns

Influences of salvage logging on forest birds after fire in the eastern Cascades, Oregon

Conserving avian diversity in agricultural systems : the role of isolated Oregon white oak legacy trees

Multiscale relationships of wintering birds with riparian and wetland habitat in the Willamette Valley, Oregon

Snag longevity, bird use of cavities, and conifer response across three silvicultural treatments in the Oregon Coast Range

Seasonal dynamics of a riparian food web in the Oregon Coast Range mountains

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