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Pendent Usnea (Lichens; Ascomycetes; Parmeliaceae) in Western Oregon : taxonomy; morphological characters; and geographical distribution

Creator:: Pittam, Sherry K.
Abstract:: Pendent Usnea species were collected in western Oregon and examined. Character states, such as cortex-medulla-axis ratio; fibril length; papilla diameter; branching patterns; and presence or absence of fibrils, papillae, soredia, isidia; plus chemistry, were recorded and analyzed by inspection for differences. Historical names were researched in the literature. A comparison...
Resource Type:: Masters Thesis
Full Text:: (Lichens; Ascomycetes; Parmeliaceae) in Western Oregon: Taxonomy; Morphological Characters; and

Classification of Native Vegetation of Oregon - 2019

Creator:: Kagan, James S., Brunner, Rachel L., and Christy, John A.
Abstract:: This classification is an update of the 2004 classification of native vegetation of Oregon by Kagan, Christy, Murray and Titus. As before, this classification lists the native plant associations known to occur in Oregon, and includes both successional and climax vegetation types that were part of the presettlement landscape of...
Resource Type:: Technical Report
Full Text:: Oregon by Kagan, Christy, Murray and Titus. As before, this classification lists the native plant

Urbanizing Flora of Portland, Oregon, 1806-2008.

Creator:: Christy, John A., Kimpo, Angela, Marttala, Vernon, Gaddis, Philip K., and Christy, Nancy L.
Abstract:: Second printing with corrections and additions, December 2009.
Resource Type:: Technical Report
Full Text:: URBANIZING FLORA OF PORTLAND, OREGON, 1806-2008 John A. Christy, Angela

Classification strategies for unbalanced binary maps : finding Ponderosa pine in the Willamette Valley

Creator:: Riddell, Audrey P.
Abstract:: Forest species classifications are becoming increasingly automated as advances are made in machine learning. The algorithms used to identify tree species range from simple decision trees to intricate neural networks, and often excel in accurately delineating tree species. However, complex algorithms can have high input costs, including the cost of...
Resource Type:: Masters Thesis
Full Text:: 25, 2018. Title: Classification strategies for unbalanced binary maps: finding Ponderosa Pine in

A hierarchical stream habitat classification system: development and demonstration

Creator:: Frissell, Christopher A.
Abstract:: Classification of Streams and stream habitats is useful for research involving establishment of monitoring stations, determining local impacts of land use practices, generalization from site-specific data, and assessment of basin-wide, cumulative impacts of human activities on streams and their biota. This thesis presents a framework for a hierarchical classification system,...
Resource Type:: Masters Thesis
Full Text:: TRODT IN AN OREGON CASCADES STREAM: APPLICATION OF A GEOMORPHIC HABITAT CLASSIFICATION SYSTEM 51

The taxonomy and certain biological aspects of the crayfish of Oregon and Washington

Creator:: Miller, George Carl
Resource Type:: Masters Thesis

Classification of native vegetation of Oregon

Creator:: Kagan, James S., Christy, John A., Murray, Michael P., Titus, Jonathan A., Oregon Natural Heritage Information Center, and Institute for Natural Resources
Abstract:: This classification lists the native plant associations known to occur in Oregon, and includes both successional and climax vegetation types that were an important part of the presettlement landscape of Oregon. It serves as an index to the diversity, distribution and relative rarity of the state's native plant associations, and...
Resource Type:: Technical Report
Full Text:: PCLIST.XLS CLASSIFICATION OF NATIVE VEGETATION OF OREGON

Land classification on the Siuslaw National Forest

Creator:: Bates, E. G.
Resource Type:: Undergraduate Thesis
Full Text:: Land classification on the Siuslaw National Forest LAID

Fescue taxonomy in the Pacific coast states

Creator:: Wilson, Barbara L.
Abstract:: Accurate taxonomy is essential to preservation and management of native grasses. Four problems in fescue taxonomy were investigated: the identity of the native fescue that dominates western Oregon and Washington prairies, the relationship of native Festuca roemeri to closely related grasses, the status of F. howellii and F. washingtonica, and...
Resource Type:: Dissertation
Full Text:: identity of the native fescue that dominates western Oregon and Washington prairies, the relationship of

Field guide to riparian plant communities in northwestern Oregon

Creator:: USDA Forest Service Pacific Northwest Region, McCain, Cindy, Christy, John A., Oregon Natural Heritage Information Center, and Institute for Natural Resources
Abstract:: This field guide combines classifications of common streamside plant communities and native freshwater wetland communities in Northwest Oregon. It is a condensed version of two separate works which are both available on the CD that accompanies this book. The information is also available for reference or to download as a...
Resource Type:: Technical Report
Full Text:: Riparian Plant Communities in Northwestern Oregon United States Department of Agriculture Forest

ScholarsArchive@OSU

Pendent Usnea (Lichens; Ascomycetes; Parmeliaceae) in Western Oregon : taxonomy; morphological characters; and geographical distribution

Classification of Native Vegetation of Oregon - 2019

Urbanizing Flora of Portland, Oregon, 1806-2008.

Classification strategies for unbalanced binary maps : finding Ponderosa pine in the Willamette Valley

A hierarchical stream habitat classification system: development and demonstration

The taxonomy and certain biological aspects of the crayfish of Oregon and Washington

Classification of native vegetation of Oregon

Land classification on the Siuslaw National Forest

Fescue taxonomy in the Pacific coast states

Field guide to riparian plant communities in northwestern Oregon

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