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Growth in the lichen Lobaria oregana as determined from sequential photographs

Creator:: Rhoades, Fred M. (Fred Mast)
Abstract:: The foliose lichen Lobaria oregana (Tuck.) Mti 11. Arg. is an important component of the upper canopy epiphyte community in oldgrowth Douglas fir forests of the Pacific Northwest. L. oregana contains the secondary phycobiont, Nostoc sp. , which is capable of fixing nitrogen. This thesis presents a new non-destructive method...
Resource Type:: Masters Thesis
Full Text:: (Degree) 79;12 (Date)' Title: GROWTH IN THE LICHEN LOBARIA OREGA.NA AS DETERMINED FROM SEQUENTIAL

Lichen distribution in Oregon coastal dune communities

Creator:: Leuthner, Shirley Mae
Abstract:: Distribution of lichens was studied at seven coastal dune sites in Oregon. Lichens were sampled in the dry stable, dry meadow, meadow, rush meadow, marsh, shrub and forest deflation plain communities. Observations were made of the standing water in the marsh community. Quantitative measurements were made of the percent organic...
Resource Type:: Masters Thesis
Full Text:: century crude methods of measuring the rate of growth of some lichen species were used (Herre, 1904). A

Variation in metabolism, thallus characteristics, and water relations of three populations of Loboria pulmonaria from western Oregon

Creator:: Neil, Garry Allen
Abstract:: A physio-ecological study of Lobaria pulmonaria (L. ) Hoffm. was done to determine if geographic variation occurred within the species. Lobaria pulmonaria was collected from Table Mountain, Oak Creek, and Lost Prairie, located in the Coast Range, Willamette Valley, and Cascade Range respectively in Western Oregon. During 1971 and 1972...
Resource Type:: Masters Thesis
Full Text:: ). Lobaria pulmonaria (L. ) Hoffm. is a widely distributed foliose lichen, found growing in a variety of

Lichen as an indicator on Douglas-fir

Creator:: Lindsay, Robert C.
Resource Type:: Undergraduate Thesis
Full Text:: Growth 6 Attachment to substratum 7 Critical factors III. HARMFUL EFFECT OF LICHEN 10 Mechanical

Total synthesis of (+)-bourgeanic acid and conformational analysis of its dilactone

Creator:: Johnson, Alan T. (Alan Thomas), 1957-
Resource Type:: Dissertation
Full Text:: lichen is described. An interesting property exhibited by 1 is the facile cyclization under mild

Ecophysiology of the cyanolichen Lobaria oregana

Creator:: Antoine, Marie E.
Abstract:: This thesis consists of three manuscripts describing ecophysiological research on the cyanolichen Lobaria oregana. The first manuscript includes a re-evaluation of the assumptions underlying past estimates of N fixation by this species and provides an estimate of annual N fixation at the Wind River Canopy Crane (WRCC). Based upon litterfall...
Resource Type:: Masters Thesis
Full Text:: biomass data, N content of lichen tissue, and published growth rates, L. oregana fixes 0.4-1.6 kg N2 ha1

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:: called a thallus. The fungus consists of minutely tiny thread-like material called hyphae. In the lichen

Lichen response to the environment and forest structure in the western Cascades of Oregon

Creator:: Martin, Erin P.
Abstract:: Lichens are an important part of the biota in western Oregon forests, where they perform valuable ecological roles and contribute significantly to biodiversity. Lichens in western Oregon are threatened by a number of factors including air pollution and land use practices. If we wish to maintain the persistence of lichens...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Botany and Plant Pathology presented on June 30. 2005. Title: Lichen

Lichens on Douglas fir trees

Creator:: Edin, Nils
Resource Type:: Undergraduate Thesis
Full Text:: . . . . . . . . . . . . . 9 eneraiObservatoris . . . . .. . . . . . .. . 9 Correlation betwen Lichen growth of Various rn

Modeling phyllochron in wheat and barley

Creator:: Cao, Weixing
Abstract:: An understanding of the effect of environment on phyllochron (degree-days between two successive leaves) is necessary to model cereal crop canopy growth. This study was designed to investigate the relationships of phyllochron to temperatures and daylengths in winter wheat (Triticum aestivum L.) and spring barley (Hordeum vulgare L.). A series...
Resource Type:: Dissertation
Full Text:: successive leaves) is necessary to model cereal crop canopy growth. This study was designed to investigate

ScholarsArchive@OSU

Growth in the lichen Lobaria oregana as determined from sequential photographs

Lichen distribution in Oregon coastal dune communities

Variation in metabolism, thallus characteristics, and water relations of three populations of Loboria pulmonaria from western Oregon

Lichen as an indicator on Douglas-fir

Total synthesis of (+)-bourgeanic acid and conformational analysis of its dilactone

Ecophysiology of the cyanolichen Lobaria oregana

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

Lichen response to the environment and forest structure in the western Cascades of Oregon

Lichens on Douglas fir trees

Modeling phyllochron in wheat and barley

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