Index Catalog // ScholarsArchive@OSU

Linking marine communities and ecosystems : invertebrates mediate nutrient availability in intertidal communities

Creator:: Bracken, Matthew E.
Abstract:: While community ecologists have traditionally focused on local-scale processes, it has become apparent that a broader perspective, which explores the community-level ramifications of material fluxes within and between ecosystems, is necessary to effectively evaluate bottom-up influences on community structure and dynamics. In this dissertation, I employed ecosystem principles to understand...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Matthew E. Bracken for the

Early events in hydrocortisone induced glutamine synthetase activity in differentiating chick neural retina

Creator:: Hull, Shirley Anne
Abstract:: Glutamine synthetase in the embryonic chick neural retina shows a 50 fold increase in activity between the 16th and 17th day of embryonic development. This increase in enzyme activity results from de novo enzyme synthesis thus making it a useful marker of differential gene expression. A precocious rise in activity...
Resource Type:: Dissertation
Full Text:: DIFFERENTI- A TING CHICK NEURAL RETINA. Abstract approved: Redacted for Privacy Dr. John E. Morris

The roles of nutrient dynamics, oceanography, and light in the structure and functioning of rocky intertidal macrophyte assemblages

Creator:: Close, Sarah L.
Abstract:: The influence of the physical environment on organisms has long been a subject of ecological research. But, the complex drivers of environmental variation, and the multiple scales at which this can occur, make studying this topic a difficult challenge. In rocky intertidal habitats, oceanographic- and climate-scale variability influence benthic communities...
Resource Type:: Dissertation
Full Text:: those who came before me. I also thank Cindy Kent and Kathleen Norris for their support and patience

Physiological alterations following severe hypoxic stress in two species of fresh-water fish

Creator:: Heath, Alan G.
Abstract:: Bluegill sunfish, Lepomia macrochirus, and cutthroat trout, Salmo clarki, were exposed to a rapidly declining oxygen tension for a period of time sufficient to just cause loss of equilibrium in the fish. During recovery from the stress, measurements of oxygen uptake, blood lactic acid, blood glucose, liver glycogen, muscle glycogen,...
Resource Type:: Dissertation
Full Text:: ). Other investigators (e. g. 24; 63; 18) have kept water flowing through the containers holding the fish

The influence of biophysical feedbacks and species interactions on grass invasions and coastal dune morphology in the Pacific Northwest, USA

Creator:: Zarnetske, Phoebe Lehmann
Abstract:: Biological invasions provide a unique opportunity to study the mechanisms that regulate community composition and ecosystem function. Invasive species that are also ecosystem engineers can substantially alter physical features in an environment, and this can lead to cascading effects on the biological community. Aquatic-terrestrial interface ecosystems are excellent systems to...
Resource Type:: Dissertation
Full Text:: ................................................................... 139 D Plant morphological differences from the wind tunnel experiment ............... 141 E

The role of herbivores and productivity on community structure of rocky shores of the Galapagos Islands, Ecuador

Creator:: Vinueza, Luis R.
Abstract:: Ecosystems are facing increasing threats from human related activities, such as overfishing, pollution, habitat destruction, species invasions, and diseases, among others. While oceanic islands provide natural laboratories to understand ecological and evolutionary process, they are also particularly vulnerable to these impacts, given their usual isolation from the mainland and the...
Resource Type:: Dissertation
Full Text:: , Ryan Craig, Kim Page-Albins, Cindy Kent, Kathleen Norris, Jerod Sapp, Megan Poole, Ruth Milston

Advancing marine reserve science : from field experiments to marine conservation planning tools

Creator:: Leslie, Heather M.
Abstract:: This dissertation focuses on science relevant to the design and implementation of marine reserves. The chapters explore a range of topics related to among-site variation in population, community, and ecosystem dynamics. My results demonstrate the value and feasibility of integrating this knowledge into more comprehensive conservation and management approaches. While...
Resource Type:: Dissertation
Full Text:: at Oregon State, particularly Cindy Kent, Mikal Davis, Kathleen Norris, and the Zoology office staff

Nearshore distribution of barnacle and mussel larvae and oceanographic mechanisms of onshore transport and delivery

Creator:: Tyburczy, Joe A.
Abstract:: Recruitment of larvae from the plankton is an important determinant of community structure in marine systems. In populations of many marine species, recruitment determines the basic demographic parameters of immigration, emigration, and reproduction. Moreover, the effect of recruitment as an "ecological subsidy" can determine the strength of interactions among species...
Resource Type:: Dissertation
Full Text:: outstanding graduate role-model. I also appreciate the efforts of Cindy Kent, Kathleen Norris, Mike Frenock

Chemical cues and the molecular basis of olfactory chemoreception in caudate amphibians

Creator:: Kiemnec, Karen M.
Abstract:: Chemoreception is one of the dominant sensory modalities for many species of salamanders (reviewed in Chapter 2). At least seven of the ten currently recognized salamander families are known to respond to some sort of chemical cue. These responses are as varied as delaying hatching, seeking refuge, or initiating aggressive...
Resource Type:: Dissertation
Full Text:: ......................................................................................... 76 4.2 Summary of the GO-slim molecular functions of ESTs from D. ocoee, E

The role of oxygen and other environmental variables on survivorship, abundance, and community structure of invertebrate meroplankton of Oregon nearshore coastal waters

Creator:: Eerkes-Medrano, Dafne I.
Abstract:: The high productivity of Eastern Boundary Upwelling Ecosystems (EBUE), some of the most productive ecosystems in the globe, is attributed to the nutrient rich waters brought up through upwelling. Climate change scenarios for coastal upwelling systems, predict an intensification of coastal upwelling winds. Associated with intensification in upwelling are biogeochemical...
Resource Type:: Dissertation
Full Text:: , Torri Givigliano, Traci Durrell-Khalife, Trudy Powell, Cindy Kent, and Kathleen Norris. This PhD

ScholarsArchive@OSU

Linking marine communities and ecosystems : invertebrates mediate nutrient availability in intertidal communities

Early events in hydrocortisone induced glutamine synthetase activity in differentiating chick neural retina

The roles of nutrient dynamics, oceanography, and light in the structure and functioning of rocky intertidal macrophyte assemblages

Physiological alterations following severe hypoxic stress in two species of fresh-water fish

The influence of biophysical feedbacks and species interactions on grass invasions and coastal dune morphology in the Pacific Northwest, USA

The role of herbivores and productivity on community structure of rocky shores of the Galapagos Islands, Ecuador

Advancing marine reserve science : from field experiments to marine conservation planning tools

Nearshore distribution of barnacle and mussel larvae and oceanographic mechanisms of onshore transport and delivery

Chemical cues and the molecular basis of olfactory chemoreception in caudate amphibians

The role of oxygen and other environmental variables on survivorship, abundance, and community structure of invertebrate meroplankton of Oregon nearshore coastal waters

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