Index Catalog // ScholarsArchive@OSU

Selection on larval and adult body size in a marine fish: potential evolutionary responses and effects on population dynamics

Creator:: Johnson, Darren W.
Abstract:: Many species have complex life cycles in which a dispersive larval stage is followed by a relatively sedentary adult stage. For such species, reproductive output is often high and large variation in survivorship throughout early life-history phases (eggs and larvae) can lead to dramatic fluctuations in recruitment which may in...
Resource Type:: Dissertation
Full Text:: research. Steve Arnold provided valuable advice on evolutionary quantitative genetic theory and

Daily activity patterns, survival, and movements of red tree voles (Arborimus longicaudus) in western Oregon

Creator:: Swingle, James Kerr
Abstract:: We radiocollared a sample of 61 red tree voles in Douglas County, Oregon and monitored their movements to determine daily, seasonal, and sexual differences in behavior and home range attributes. We also collected information on nest attributes, survival, and dispersal of the radiocollared voles. Individual voles were monitored for periods...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: AN ABSTRACT OF THE THESIS OF James Kerr

Biodiversity : illustrations of some concepts, causes, and consequences

Creator:: Russell, Roland B.
Abstract:: Careful analysis and thoughtful synthesis will be necessary for expanding the envelope of ecological understanding. This work is my attempt at communicating both of these, in relation to three questions about our understanding of the structure and dynamics of biological diversity. These questions focus on a) advancing our understanding of...
Resource Type:: Dissertation
Full Text:: Lubchenco, Peter McEvoy, Bruce Menge, Phil Rossignol, and Dan Schafer; you make a pretty amazing team. Dave

Untangling the complexity of nearshore ecosystems : examining issues of scaling and variability in benthic communities

Creator:: Schoch, G. Carl
Abstract:: The objective of this research was to improve our understanding of how changes in the environment affect ecological processes. Change detection is often confounded by the large variation found in ecological data due to the difficulty of finding replicates in nature. Intertidal communities were chosen for studies of biophysical interactions...
Resource Type:: Dissertation
Full Text:: , Megan Ferguson, and numerous WDNR volunteers. Dan Schafer provided much useful advise for the

Nondestructive evaluation of in vitro-stored plants : a comparison of visual and image analysis systems

Creator:: Aynalem, Hailu M.
Abstract:: In-vitro plants in slow-growth storage must be routinely evaluated for repropagation and assessment of viability. It is often difficult to determine plant health by visual assessment due to variation in growth patterns and plant structure among genera. In order to evaluate cold-stored germplasm, laboratories need more effective approaches for viability...
Resource Type:: Masters Thesis
Full Text:: , and the rest of the committee members Prof. Burt Lawrence, Prof. Dan Schafer and Prof. Jim Myers for

Sensory and chemical analysis of 1997 Oregon Pinot noir enzyme treated wines

Creator:: Goldberg, Naomi
Abstract:: Pinot noir has a reputation for lower color stability than other red wine varieties. Because it has relatively low anthocyanin and phenolic content and lacks acylated anthocyanin pigments compared to other red vinifera varieties, color extraction and stability are particularly important. Varying the processing during fermentation of red wine can...
Resource Type:: Masters Thesis
Full Text:: other committee members, Dr. Dan Schafer, and Dr. Peter Cheeke, I want to express my gratitude. Their

Developing models to predict favorable environments for rice blast

Creator:: Calvero, Silvino B.
Abstract:: Statistical analyses were used to develop predictive models of rice blast and to relate the favorability of environment to disease incidence and severity on different rice cultivars at five sites in Asia. The WINDOW PANE program was used to search for weather factors highly correlated with blast. Stepwise and r-square...
Resource Type:: Masters Thesis
Full Text:: and career. The help extended by the committee members, Drs. Bruce McCune, Dan Schafer, and Steve

Succession and stability in two rocky intertidal communities on the central Oregon coast

Creator:: Farrell, Terence M.
Abstract:: The stability of a limpet-dominated community was assessed in a experiment in which an consumer was temporarily removed. Compared to unmanipulated plots, the limpet-exclusion plots developed greater algal abundance and altered species composition of both algae and barnacles. The community was not perturbed beyond its capacity to recover, since the...
Resource Type:: Dissertation
Full Text:: . I thank my committee--Fred Ramsey, Dan Schafer, Jim Hall, Andy Blaustein, Bruce Menge and Jane

Oceanographic conditions around the Galápagos Archipelago and their influence on cetacean community structure

Creator:: Palacios, Daniel Mauricio
Abstract:: The objectives of this dissertation were to describe the complex oceanographic conditions around the Galápagos Archipelago (eastern equatorial Pacific), their seasonal variability, and their effects on patterns of cetacean occurrence. The physical and ecological factors leading to a plume of high phytoplankton biomass in the wake of the Galápagos were...
Resource Type:: Dissertation
Full Text:: Committee, Charlie Miller, Bill Pearcy, Dan Schafer, and Ted Strub, for their feedback and encouragement

ScholarsArchive@OSU

Selection on larval and adult body size in a marine fish: potential evolutionary responses and effects on population dynamics

Daily activity patterns, survival, and movements of red tree voles (Arborimus longicaudus) in western Oregon

Biodiversity : illustrations of some concepts, causes, and consequences

Untangling the complexity of nearshore ecosystems : examining issues of scaling and variability in benthic communities

Nondestructive evaluation of in vitro-stored plants : a comparison of visual and image analysis systems

Sensory and chemical analysis of 1997 Oregon Pinot noir enzyme treated wines

Developing models to predict favorable environments for rice blast

Succession and stability in two rocky intertidal communities on the central Oregon coast

Oceanographic conditions around the Galápagos Archipelago and their influence on cetacean community structure

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search