Index Catalog // ScholarsArchive@OSU

An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah

Creator:: Kaltwasser, Robert George
Abstract:: During the summers of 1971, 1972, and 1973, a general floristic ecological survey of the naturally-occurring vegetation of the Bear River Migratory Bird Refuge in Utah was carried out. Ten community types were identified and characterized. These included two aquatic communities, the Potamogeton pectinatus (Pope) and the Ruppia maritima/ Zannichellia...
Resource Type:: Masters Thesis
Full Text:: Migratory Bird Refuge, Box Elder County, Utah AN ABSTRACT OF THE THESIS OF ROBERT GEORGE KALTWASSER for

An analysis of montane forest vegetation on the east flank of the central Oregon Cascades

Creator:: West, Neil E.
Abstract:: Montane forest vegetation as it occurs on the east flank of the central Oregon Cascades has provided excellent conditions for a "natural experiment" in the use of various methodologies in studying vegetational distribution. This "experiment" has reflected on some theory and practice for the discipline of plant synecology. Detailed descriptions,...
Resource Type:: Dissertation
Full Text:: of the central Oregon Cascades AN ABSTRACT OF THE THESIS OF Neil Elliott West for the (Name

Cryptogam communities in forest and steppe ecosystems of Oregon, USA

Creator:: Root, Heather T.
Abstract:: I focus on addressing knowledge gaps relating to management of cryptogams in Oregon's public lands in Pseudotsuga menziesii-Tsuga heterophylla forests on the west side of the Cascade Range and dryland steppe in the Cascade Range's rainshadow. While a great deal of research has illustrated the importance of late-successional forests for...
Resource Type:: Dissertation
Full Text:: Microsoft Word - diss 6.13.2011 AN ABSTRACT OF THE

Ecology and distribution of riparian vegetation in the Trout Creek Mountains of southeastern Oregon

Creator:: Evenden, Angela G.
Resource Type:: Dissertation
Full Text:: water line of Willow Creek. 2-13. The upper photograph shows an example of highly 126 eroded stream

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:: are subtle and identification is difficult. Festuca ovina provides an extreme example of the

Systematic and reproductive studies of Mimulus (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology

Creator:: Meinke, Robert James
Abstract:: The Mimulus washingtonensis complex is a group of morphologically similar species centered in the Pacific Northwest. All are rare, and most are under consideration for listing as endangered. Morphometric and pollination data were used in developing a revised taxonomy for the group. Five species and two varieties are recognized. Mimulus...
Resource Type:: Dissertation
Full Text:: spontaneously in soil collected at type locality of M. hymenophyllus in Wallowa County, Oregon. 2-23. Scanning

A chemosystematic study of the phylogenetic position of Arabidopsis thaliana (L.) heynh. (Brassicaceae) employing numerical methods

Creator:: Kaplan, Hesh J.
Abstract:: The Brassicaceae, Mustard Family, is a well marked natural family, whose tetramerous flowers, tetradynamous stamens, and distinctive bi- carpellary fruits, clearly distinguish it from related families. It is a large family of some 3, 000 recognized species and over 300 genera. Although numerous attempts have been made over the past...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Hesh J. Kaplan for the degree

Landscape Genomics and Climatic Responses of Willamette Valley Alders

Creator:: Kral, George L.
Abstract:: The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
Resource Type:: Dissertation
Full Text:: species of alder co-occurring in the Willamette Valley, Oregon. Chapter 1 provides an introduction to

A revision of Juncus subgenus genuini (Juncaceae) in the Pacific states

Creator:: Lint, Harold LeRoy
Abstract:: A study was made of the subgenus Genuini of the genus Juncus in the Pacific States, California, Oregon and Washington. Extensive morphological comparisons, geographical distributions, habitat differences and observations of apparent presence or absence of natural hybrids provided the major data sources. Cytological studies were made, but were inconclusive. Eleven...
Resource Type:: Dissertation
Full Text:: Oregon north of Josephine County and in Washington 6 A. Inflorescence of Juncus exiguus subsp. gracilis

Ecology and reproduction in Collomia macrocalyx Brand (Polemoniaceae)

Creator:: Joyal, Elaine
Abstract:: Populations of Collom ia macrocalyx Brand were located and observed in order to determine the distribution, ecology, and reproductive biology of this species and probable relationships to other members of the genus. The purpose of the study was to obtain information that would explain the restricted range of the species...
Resource Type:: Masters Thesis
Full Text:: ); Stockholm (S); Smithsonian (US); University of Oregon (ORE); University of Washington (UW); and Washington

ScholarsArchive@OSU

An ecological study of the vegetation of the Bear River Migratory Bird Refuge, Box Elder County, Utah

An analysis of montane forest vegetation on the east flank of the central Oregon Cascades

Cryptogam communities in forest and steppe ecosystems of Oregon, USA

Ecology and distribution of riparian vegetation in the Trout Creek Mountains of southeastern Oregon

Fescue taxonomy in the Pacific coast states

Systematic and reproductive studies of Mimulus (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology

A chemosystematic study of the phylogenetic position of Arabidopsis thaliana (L.) heynh. (Brassicaceae) employing numerical methods

Landscape Genomics and Climatic Responses of Willamette Valley Alders

A revision of Juncus subgenus genuini (Juncaceae) in the Pacific states

Ecology and reproduction in Collomia macrocalyx Brand (Polemoniaceae)

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