Index Catalog // ScholarsArchive@OSU

SEM Analysis of Digestive Wear on Rodent Bones: A comparison of modern and fossil remains

Creator:: Hay-Roe, Samuel
Abstract:: When people think of fossils, they generally imagine the bones of large, charismatic animals. However, small mammals are an ecologically important group of organisms that show up frequently in the fossil record, and can frequently function as indicators for local environmental and ecological conditions (Terry, 2007, 2010). Rodent and rabbit...
Resource Type:: Poster
Full Text:: comparison of modern and fossil remains Samuel Hay-Roe and Rebecca Terry COLLEGE OF SCIENCE DEPARTMENT OF

Dogs, Death, and Dietary Breadth: Insights into the Macroecology and Macroevolution of Canidae

Creator:: Tanis, Brian P.
Abstract:: The size, shape, and stability of a species’ dietary niche can both influence and reflect a variety of biological patterns, including species interactions, extinction risk, and ecosystem function. This is particularly apparent when dietary changes manifest at ecosystem and clade scales to profoundly affect macroecological and macroevolutionary trajectories. However, many...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Rebecca C. Terry The size, shape, and stability of a species’ dietary niche can both

How competitive are iconic competitors? Testing resource partitioning in Great Basin chipmunks

Creator:: Ormand, Elora J.
Abstract:: Competitive exclusion is a key concept in ecology describing the exclusion of one species by another from access to a limited resource. Competitive interactions between chipmunk species in the Great Basin, documented by James Brown in 1970, are often used as a textbook example of competitive exclusion. Whether competitive interactions...
Resource Type:: Honors College Thesis
Full Text:: . Abstract approved by: _________________________________________________________ (Rebecca C. Terry

New insight into the morphology and physiology of Mesozoic archosaurs

Creator:: Jones, Terry D.
Abstract:: Inferences regarding the biology of extinct taxa are often founded primarily on cladistically-based phylogenetic hypotheses. However, these inferences are frequently inconsistent with the morphology and physiology of modern animals. I suggest that reference to the biology of modern animals might be a more appropriate tool to aid in the reconstruction...
Resource Type:: Dissertation
Full Text:: Archosaurs AN ABSTRACT OF THE DISSERTATION OF Terry D. Jones for the degree of Doctor of Philosophy in

Ionic regulation in anurans

Creator:: Mullen, Terry Lee
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF TERRY LEE MULLEN for the degree

Aboriginal fishing at Seal Rock (35-LC-14) and Neptune (35-LA-3) : late-prehistoric archaeological sites on the central Oregon coast

Creator:: Zontek, Terry
Abstract:: A sample of fish remains from two late-prehistoric archaeological sites on the central coast of Oregon were analyzed to partially evaluate two models of aboriginal subsistence-settlement systems. One model is based upon ethnograhpic data, primarily Drucker's (1939), for Yakonen speakers collected in the late 19th and early 20th centuries. The...
Resource Type:: Masters Thesis
Full Text:: OF Terry Zontek for the degree of Master of Arts in Interdisciplinary Studies in Anthropology and

Wildlife Health in Managed Forests : Immunity and Infectious Diseases in Wild Rodents of Oregon

Creator:: Hanselmann, Rhea
Abstract:: With continual and worldwide human population growth, our impact on the natural environment expands and intensifies every day. We consume natural resources, burn fossil fuels, and release toxic compounds into the air, water, and earth. We build roads that fragment the landscape, construct new settlements, and develop agricultural lands in...
Resource Type:: Dissertation
Full Text:: , including current members Julia Burco, Malcolm Lowry, Rebecca Terry, and my Graduate Council

Structure and Dynamics of the Canine (Canis familiaris) Nasal Microbiome

Creator:: Knorr, Elizabeth
Abstract:: The diverse community of bacteria living within and on host organisms, known as the microbiome, has an important role in maintaining host health. Dysbiosis, known as a change in the healthy community of the microbiome, has been associated with a number of diseases across host organisms and body sites including...
Resource Type:: Dissertation
Full Text:: committee members Becca Terry, Clint Epps, Anna Jolles, and Bree Beechler. I appreciate all your feedback

A distributional study of the birds of Montana

Creator:: Davis, Clifford Vernon, 1914-
Resource Type:: Dissertation
Full Text:: deserves much of the credit for this thesis I wish last to thank my major professor Dr. Robert M. Storm

Temperature stress, gene expression, and innate immunity at the onset of cnidarian-dinoflagellate symbiosis

Creator:: Schnitzler, Christine E.
Abstract:: The intracellular mutualism between cnidarians and photosynthetic dinoflagellates (genus Symbiodinium) is responsible for the physical and trophic structure of diverse coral reef ecosystems. This relationship, based on nutrient exchange, allows for high productivity in tropical waters, which are generally nutrient-poor environments. Numerous environmental stressors currently threaten the health of corals,...
Resource Type:: Dissertation
Full Text:: : ___________________________ Virginia M. Weis The intracellular mutualism between cnidarians and photosynthetic

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:: communities on the central Oregon coast AN ABSTRACT OF THE THESIS OF Terence M. Farrell for the degree of

Evolutionary and ecological interactions affecting seaweeds

Creator:: Olson, Annette M.
Abstract:: The term "interaction" in evolutionary biology and ecology describes the relationships among variables in two classes of causal models. In the first, "interaction" refers to the influence of a single putatively causal variable on a variable of interest. In the second class of models, the term applies when a third...
Resource Type:: Dissertation
Full Text:: seaweeds AN ABSTRACT OF THE THESIS OF Annette M. Olson for the degree of Doctor of Philosophy in

The ecological and behavioral dynamics of breeding in three sympatric anuran amphibians

Creator:: Olson, Deanna H.
Abstract:: Breeding ecology and behavior were investigated in a field study of three sympatric anuran amphibians in the Oregon Cascade Mountains: the western toad (Bufo boreas), the Cascades frog (Rana cascadae) and the Pacific treefrog (Hyla regilla). A comprehensive study of the western toad mating system was conducted at three populations...
Resource Type:: Dissertation
Full Text:: Blaustein, Rick O'Hara, Diana Hews, Terry Risdon, Mike McDowell, Judy Maule, Steve Marlatt, Jock Young

A biological and taxonomic study of selected myxosporida of some Oregon fresh-water fishes

Creator:: Wyatt, Ellis Junior
Abstract:: Biological studies were conducted on a histozoic myxosporidan Myxobolus insidiosus (Wyatt and Pratt, 1963) from the musculature of Oncorhynchus tshawytscha (Walbaum). This organism is known to occur in spring chinook salmon in Oregon and coho salmon O. kisutch (Walbaum) in Washington. In addition Myxobolus kisutchi (Yasutake and Wood, 1957) was...
Resource Type:: Dissertation
Full Text:: the striated muscle differ from that of M. insidiosus. Transmission studies on Myxobolus insidiosus

Immunological perspectives of a host-parasite system : studies on the humoral and cellular components of Biomphalaria glabrata, New World host for Schistosoma mansoni

Creator:: Boswell, Carl A.
Abstract:: The host snail Biomphalaria glabrata and the parasitic trematode Schistosoma mansoni are valuable subjects for studies evaluating and defining immunological parameters that determine the outcome of individual host-parasite encounters. In this thesis, both soluble and cellular components of the snail's hemolymph were examined to gain insight into the basis for...
Resource Type:: Dissertation
Full Text:: . I dedicate this thesis to my parents, Clifford E., and Marjorie M. Boswell. Their encouragement and

The role of innate immunity in cnidarian-dinoflagellate symbiosis

Creator:: Poole, Angela Z.
Abstract:: Cnidarians, such as corals and sea anemones serve as hosts to a variety of organisms including symbiotic dinoflagellates, bacteria, virus, and apicomplexans. As corals are vital to the health and productivity of the reef ecosystem it is important to understand how these organisms interact with each component of the holobiont....
Resource Type:: Dissertation
Full Text:: Symbiosis Abstract approved: ______________________________________ Virginia M. Weis Cnidarians, such

Kin recognition in Townsend's chipmunks (Tamias townsendii)

Creator:: Fuller, Claire A.
Abstract:: Juvenile T. townsendii were tested at 55-62 days of age to determine whether 1) they could distinguish kin from non-kin and 2) whether this ability was based on familiarity or on genetic relatedness. Seventy-three pups were observed in 68 pairwise tests. The frequencies and durations of 8 behaviors as well...
Resource Type:: Masters Thesis
Full Text:: Boggs, Dave Booth, Terry Farrell, Dan Norton, Dede Olsen, Jeff Peterson, Paul Sikkel, Liz Walsh and

Reconstructing the paleobiology of the dinosaurs

Creator:: Geist, Nicholas R.
Abstract:: Dinosaurs represent one of the most successful evolutionary radiations of terrestrial vertebrates, with a myriad of forms that dominated the terrestrial environment for over 180 million years. Despite the fact that dinosaurs are the focus of extensive popular and scholarly investigation, relatively little is actually known of their biology. The...
Resource Type:: Dissertation
Full Text:: ofAuthors Terry Jones was involved in data collection, analysis, and writing of Chapter Two, Juvenile

An experimental test of optimal outbreeding in the harpacticoid copepod Tigriopus californicus (Baker)

Creator:: Brown, Alice F.
Abstract:: Hypotheses concerning relative costs of inbreeding and outbreeding were evaluated for the harpacticoid copepod Tigriopus californicus, which inhabits high intertidal tidepools. Field studies indicate high variation in biotic and abiotic parameters among pools. These findings coupled with previous information about very low dispersal rates and local adaptations to individual pools...
Resource Type:: Masters Thesis
Full Text:: tolerance. Members of the 'Fifth Floor' gang, especially Terry Farrell, Annette Olson, Andy Blaustein, Ken

Marine herbivore-plant interactions : the feeding ecology of the sea slug Placida dendritica

Creator:: Trowbridge, Cynthia D.
Abstract:: The feeding ecology of a common temperate mesoherbivore, the oligophagous sea slug Placida dendritica (Gastropoda: Opisthobranchia: Ascoglossa), was examined from April 1985 to June 1989. Along the central coast of Oregon, Placida consumed three host species: the low intertidal green algae Codium setchellii, C. fragile, and Bryopsis corticulans. Individual slugs...
Resource Type:: Dissertation
Full Text:: . Discussions with Teresa Turner, Terry Farrell, Annette Olson, Mark Wilson, Peter McEvoy, John Chapman, and

An Osteo-archaeological Investigation of Pinniped Remains at Seal Rock, Oregon (35 LNC 14)

Creator:: Snyder, Sandra L.
Abstract:: Analysis of the pinniped remains from site 35 LNC 14 reveal the presence of four species: Eumetopias jubata (Stellar sea lion), Zalophus californianus (California sea lion), Callorhinus ursinus (Northern fur seal),'and Phoca vitulina (Harbor seal). Ratios based on minimum number of individuals calculations disclose a high incidence of mature Stellar...
Resource Type:: Masters Thesis
Full Text:: for this faunal analysis. Photographs were taken by Dr. Ross and printed by Terry Zontek. Linda

Ecological physiology of the larvel brine fly Ephydra (Hydropyrus) hians, and alkaline-salt lake inhabiting Ephyrid (Diptera)

Creator:: Herbst, David B.
Abstract:: Dipterans of the family Ephydridae (shore and brine flies) are well known for their ability to tolerate and thrive in a wide variety of physically harsh circumstances. The immature stages of one such species of this family, Ephydra hians, are characteristically limited in distribution as benthic inhabitants of highly alkaline...
Resource Type:: Masters Thesis
Full Text:: sodium salts to approximately 1.3 M. The current total dissolved solids content of the lake (July, 1979

Predictability and constraints on the structure of ecological communities in the context of climate change

Creator:: Barner, Allison K.
Abstract:: Ecologists must increasingly balance the need for accurate predictions about how ecosystems will be affected by climate change, against the fact that making such predictions at the ecosystem-level may be infeasible. Although information about responses of individual species to a changing environment is increasing, scaling such information to the community...
Resource Type:: Dissertation

The morphological events during the self-reassembly of the sea urchin embryo in culture

Creator:: Hamada, Spencer Hiroshi
Abstract:: The gastrula of the sea urchin Strongylocentrotus purpuratus was dissociated into single cells. In culture these cells appeared apolar, but reassembled into quasi-normal embryos composed of structures with polarized cells. In this study emphasis was placed on those morphological events coincident with the reestablishment of a polar orientation within the...
Resource Type:: Dissertation
Full Text:: in 15 ml of a solution containing 0.44 M sucrose, 0.05 M citrate, and no EDTA (Giudice, 1965). 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:: toad bladder at concentrations greater than 10-7 M. Cortisone was, however, unable to generate any

Algal community structure and organization in high intertidal rockpools

Creator:: van Tamelen, Peter G.
Abstract:: Gradients of physical disturbance are central to theories of community organization yet rarely are studies performed in which physical factors are experimentally manipulated. Pothole tidepool algal communities exhibit distinct zonation patterns from top to bottom that result from scouring by rocks and other debris in the pools. Scouring is easily...
Resource Type:: Dissertation
Full Text:: Brosnan, Alice Brown, Mike Burger, Jeff Chan, Elizabeth Everest, Terry Farrell, Doug Gulley, Denise Idler

Chemical communication and chemoreception in the Dungeness crab, Cancer magister, and the lined shore crab, Pachygrapsus crassipes

Creator:: Takahashi, Francis Takao
Abstract:: Great importance has been attributed to the visual aspects of sexual communication in semi-terrestrial crabs and although P. crassipes may utilize visual signals, pheromones and chemotactile signals are important in the release of mating behavior. In the subtidal C. magister pheromones seem to mediate both courtship and mating behavior. Visual...
Resource Type:: Dissertation
Full Text:: effective against the two Pseudomonas species which were not destroyed by 10-3 M sodium fluoride treatment

So Long and Thanks for All the Sponge: Cryptic Intertidal Communities, Consequences of Ocean Acidification, and New Directions for Science Education

Creator:: Rickborn, Alissa J.
Abstract:: The current generation of scientists will be asked to mitigate climate change, stall biodiversity loss, and protect ecological communities. These are tasks that require a knowledge of both ecological and social systems to be undertaken successfully. Therefore, my dissertation spans the fields of community ecology and social sciences in an...
Resource Type:: Dissertation
Full Text:: intertidal sponge Halichondria panicea. Biol. Bull. 171, 371–378. Bell, J. J., Bennett, H. M., Rovellini

Calcium metabolism and regulation in larval Rana catesbeiana

Creator:: Pennington, Janet
Abstract:: Calcium concentration and its regulation was examined in tissues of larval Rana catesbiana. Considerable variability was found in tissue calcium that could not be explained by stage of development. A seasonal effect was observed, with plasma calcium decreasing and muscle calcium increasing during winter. Total plasma calcium concentration reflects, within...
Resource Type:: Dissertation
Full Text:: - structive criticism of data and editing of this thesis. Drs. Daniel Stiff ler and Terry Mullen cheerfully

Reproductive and aggressive behaviors in the giant hairy desert scorpion

Creator:: Tallarovic, Sara K.
Abstract:: The giant hairy desert scorpion, Hadrurus arizonensis, is a long-lived species of North American scorpion that is presented here as an important model for research in mating systems evolution and sexual selection. Many behaviors found in this species were undocumented and are described here for the first time. This thesis...
Resource Type:: Dissertation
Full Text:: students. I especially appreciate many of my fellow T.A.s from Human A and P. particularly Terry Jones

Impacts of Ocean Acidification on Coralline Algae : From Species to Community Consequences

Creator:: Shen, Chenchen
Abstract:: Oceanic uptake of rising anthropogenic CO₂ emissions has caused the emergence of ocean acidification as a major threat to marine ecosystems worldwide. Along eastern boundary current systems, seawater is naturally acidified due to coastal upwelling of low pH seawater from depth. Compounded by ocean acidification, upwelling regions are expected to...
Resource Type:: Dissertation
Full Text:: , Virginia Weis, Selina Heppell, Su Sponaugle, Sarah Henkel, Anna Jolles, Rebecca Terry, Dawn Wright, and

Hidden dynamics : community ecology and costs of parasite infection in African buffalo (Syncerus caffer)

Creator:: Henrichs, Brian
Abstract:: Most wild animals are concurrently infected with multiple parasite species for most of their lives. These parasite species assemble into rich and diverse communities, with parasites using host tissues for growth and reproduction as well as evolving strategies to evade the host immune system. The net effect of these ecological...
Resource Type:: Masters Thesis

New insights into the biology of theropod dinosaurs

Creator:: Quick, Devon E.
Abstract:: There is little, if any, direct fossil evidence of the cardiovascular, respiratory, reproductive or digestive biology of dinosaurs. However, a variety of data can be used to draw reasonable inferences about the physiology of the carnivorous theropod dinosaurs (Archosauria: Theropoda). Extant archosaurs, birds and crocodilians, possess regionally differentiated, vascularized and...
Resource Type:: Dissertation
Full Text:: every way. Dr. Terry D. Jones, Dr. Nick Geist and Dr. W. Jaap Hillenius have proved excellent

New perspectives in archosaur biology

Creator:: Harwell, Amy E.
Abstract:: The respiratory and metabolic biology of dinosaurs is poorly, if at all, reflected in the fossil record. By comparing anatomical features of modern taxa that are functionally linked to specific biology with the remains of theropod dinosaurs (Archosauria: Theropoda) and early birds, we may reasonably infer the physiology of long...
Resource Type:: Dissertation
Full Text:: . Terry D. Jones, Dr. Nick Geist and Dr. W. Jaap Hillenius have been a continuous source of guidance

The role of avian predators in an Oregon rocky intertidal community

Creator:: Marsh, Christopher P.
Abstract:: Birds affected the community structure of an Oregon rocky shore by preying upon mussels (Mytilus spp.) and limpets (Collisella spp.). The impact of such predation is potentially great, as mussels are the competitively dominant mid-intertidal space-occupiers, and limpets are important herbivores in this community. Prey selection by birds reflects differences...
Resource Type:: Dissertation
Full Text:: Strehlow, and Terry Taylor for assistance with diet analysis and exclusion experiments. R. Anthony, J.A

Diverse consumer guilds in intertidal communities of Oregon and the Republic of Panama and their effects on prey assemblages

Creator:: Gaines, Steven D.
Abstract:: Low intertidal communities of Oregon and Panama have many predator and herbivore species. This diversity of consumers is important to the organization of both communities because of qualitative differences among the consumer species in their ability to circumvent specific prey defenses. In Oregon, the red alga Iridaea cordata is protected...
Resource Type:: Dissertation
Full Text:: manuscripts, my fellow graduate students, especially Carla D'Antonio, Terry Farrell, Monica Geber, Chris

Cardiovascular and respiratory responses of the ghost shrimp, Callianassa californiensis Dana, to the pesticide carbaryl and its hydrolytic product 1-naphthol

Creator:: Estes, Patricia S.
Abstract:: Many environmental factors influence cardiovascular and respiratory activities of crustaceans. The effects of natural stressors (hypoxia, low salinity, high temperature) have been well studied, but the effects of pollutants upon these two organ systems have received less attention. The presence of the pesticide carbaryl (Sevin, Union Carbide, Inc.) and its...
Resource Type:: Masters Thesis
Full Text:: Terry Farrell, Dave Herbst, Jeff Longmate, Tammy Maurer, and Carl Boswell helped me with statistics

Bottom-up and top-down forces in tidepools : the influence of nutrients, herbivores, and wave exposure on community structure

Creator:: Nielsen, Karina Johanna
Abstract:: The relationship between nutrients and community structure is poorly understood in open-coast habitats. I created a system of artificial tidepools, of identical age and physical dimensions, at two sites that differed in wave exposure, and manipulated nutrient levels and the abundance of herbivores. Using these unique field mesocosms, I explored...
Resource Type:: Dissertation
Full Text:: : Greg and Ann Peterson, and Rod and Linda Terry, in addition to all my great neighbors on 32nd Street

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