Index Catalog // ScholarsArchive@OSU

Is fire exclusion in mountain big sagebrush communities prudent? Soil nutrient, plant diversity and arthropod response to burning

Creator:: Davies, Kirk W., Bates, Jonathan D., Boyd, Chad S., and Nafus, Aleta M.
Abstract:: Fire has largely been excluded from many mountain big sagebrush communities. Managers are reluctant to reintroduce fire, especially in communities without significant conifer encroachment, because of the decline in sagebrush-associated wildlife. Given this management direction, a better understanding of fire exclusion and burning effects is needed. We compared burned to...
Resource Type:: Article
Full Text:: for general principles. Ecology 80, 1455–1474. Tilman D, Lehman CL, Thomson KT (1997) Plant diversity

Evolution and ecology of the Ceanothus-Frankia symbiosis

Creator:: Jeong, Soon-Chun
Abstract:: The evolutionary relationship between Frankia and actinorhizal plants was evaluated by reconstructing molecular phylogenetic trees from nifH, 16S rDNA, and rbcL nucleotide sequences. Subgroupings in Frankia phylogenetic trees reconstructed from nifH and from 16S rDNA sequences were consistent in terms of plant origins of Frankia strains. Although the branching order...
Resource Type:: Dissertation
Full Text:: symbiosis 4 1.2 Ecology of Frankia in the soil 5 1.3 Size and diversity of Frankia populations that nodulate

Fire effects on vegetation diversity, structure, and successional dynamics in shrub-steppe and mixed conifer environments of the Hells Canyon, Idaho

Creator:: Havlina, Douglas William
Abstract:: The effects of fire severity on post-fire succession and shrub demography were quantified in shrub-steppe grasslands and subalpine forests in the Hells Canyon of the Payette National Forest, Idaho. Following the 1988 Eagle Bar Fire, species frequency, community diversity, fire adaptations, and stand ages were quantified at 12 plots in...
Resource Type:: Masters Thesis
Full Text:: Title: Fire Effects on Vegetation Diversity, Structure, and Successional Dynamics in Shrub-Steppe and

Agave salmiana Plant Communities in Central Mexico as Affected by Commercial Use

Creator:: Martinez Salvador, Martin, Mata-Gonzalez, Ricardo, Morales Nieto, Carlos, and Valdez-Cepeda, Ricardo
Abstract:: Agave salmiana is a native plant species harvested for the commercial production of mezcal (Agave spirits) in the highlands of central Mexico. The objective of this study was to identify vegetation changes in natural communities where A. salmiana has been differentially harvested for commercial purposes. Three plant community categories were...
Resource Type:: Article
Full Text:: dominant in the area, excluding other species and similarly reducing plant diversity. 23 15 In

Are Early Summer Wildfires an Opportunity to Revegetate Exotic Annual Grass–Invaded Plant Communities?

Creator:: Davies, Kirk W., Nafus, Aleta M., and Johnson, Dustin D.
Abstract:: Medusahead (Taeniatherum caput-medusae [L.] Nevski) is an exotic annual grass invading western rangelands. Successful revegetation of invaded-plant communities can be prohibitively expensive because it often requires iterative applications of integrated control and revegetation treatments. Prescribed burning has been used to control medusahead and prepare seedbeds for revegetation, but burning has...
Resource Type:: Article
Full Text:: in sagebrush steppe plant communities. Rangeland Ecology & Management 61:110–115. DAVIES, K. W. 2010

Factors influencing the effects of host diversity on plant disease epidemics for wheat stripe rust and potato late blight

Creator:: Garrett, Karen A.
Abstract:: Most studies of plant disease epidemiology have focused on epidemics in host populations composed of a single genotype. But crop plant diversity can be a useful means of improving the deployment of resistance genes. In a series of experiments with wheat stripe rust and potato late blight, we studied factors...
Resource Type:: Dissertation
Full Text:: Factors influencing the effects of host diversity on plant

Taking the Next Step: Building an Arabidopsis Information Portal

Creator:: International Arabidopsis Informatics Consortium, Bastow, Ruth, Beynon, Jim, Brendel, Volker, Dooley, Rion, Friesner, Joanna, Grotewold, Erich, Huala, Eva, Loraine, Ann, Meyers, Blake, Pires, J. Chris, Provart, Nicholas, Stanzione, Dan, Town, Chris, and Ware, Doreen
Abstract:: The Arabidopsis Information Portal (AIP), a resource expected to provide access to all community data and combine outputs into a single user-friendly interface, has emerged from community discussions over the last 23 months. These discussions began during two closely linked workshops in early 2010 that established the International Arabidopsis Informatics...
Resource Type:: Article
Full Text:: Informatics Consortium. (2012). Taking the next step: building an Arabidopsis information portal. Plant Cell

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:: Kimpo, Vernon Marttala, Philip K. Gaddis, Nancy L. Christy Occasional Paper 3 of the Native Plant

Green-tree retention and ectomycorrhiza legacies : the spatial influences of retention trees on mycorrhiza community structure and diversity

Creator:: Stockdale, Christopher A.
Abstract:: These studies are part of the Demonstration of Ecosystem Management Options (DEMO) study, a program researching the effects of different levels and patterns of green-tree retention on ecological, economic, and social phenomena. We restricted our studies to the 15% basal area, evenly dispersed retention treatment. Our objectives were, first, to...
Resource Type:: Masters Thesis
Full Text:: Mycorrhiza Community Structure and Diversity. Abstract approved: -~-~--~~~---~-------- Signature redacted

Ecological effects of post-wildfire management activities (salvage-logging and grass-seeding) on vegetation composition, diversity, biomass, and growth and survival of Pinus ponderosa and Purshia tridentata

Creator:: Sexton, Timothy Ogden
Abstract:: Salvage-logging and artificial seeding of grass following wildfire are common practices in coniferous forests of the western United States, yet few studies have quantified the ecological effects of these post-fire activities. The effects of post-wildfire salvage-logging and grass-seeding on vegetation composition, aboveground biomass, and growth and survival of Pinus ponderosa...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Is fire exclusion in mountain big sagebrush communities prudent? Soil nutrient, plant diversity and arthropod response to burning

Evolution and ecology of the Ceanothus-Frankia symbiosis

Fire effects on vegetation diversity, structure, and successional dynamics in shrub-steppe and mixed conifer environments of the Hells Canyon, Idaho

Agave salmiana Plant Communities in Central Mexico as Affected by Commercial Use

Are Early Summer Wildfires an Opportunity to Revegetate Exotic Annual Grass–Invaded Plant Communities?

Factors influencing the effects of host diversity on plant disease epidemics for wheat stripe rust and potato late blight

Taking the Next Step: Building an Arabidopsis Information Portal

Urbanizing Flora of Portland, Oregon, 1806-2008.

Green-tree retention and ectomycorrhiza legacies : the spatial influences of retention trees on mycorrhiza community structure and diversity

Ecological effects of post-wildfire management activities (salvage-logging and grass-seeding) on vegetation composition, diversity, biomass, and growth and survival of Pinus ponderosa and Purshia tridentata

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