Index Catalog // ScholarsArchive@OSU

Evolution of sodefrin precursor pheromones in salamandrid newts

Creator:: von Reis, Martha
Abstract:: An ancient pheromonal signal is found in aquatic courting salamandrids and terrestrial courting plethodontids, two highly divergent salamander families. In the aquatic courting salamandrids Cynops pyrrhogaster and C. ensicauda, the decapeptide sodefrin is cleaved from a larger 189 amino acid Sodefrin Precursor Factor (SPF) protein and released from a gland...
Resource Type:: Masters Thesis
Full Text:: -Schwarze, D. & Silverstein, R.), pp. 173-190. New York: Plenum Press. Houck, L. D. & Arnold, S. J. 2003

Reproductive implications of parasitic infections and immune challenges in garter snakes

Creator:: Uhrig, Emily J.
Abstract:: Parasitic infections and immune challenges can affect host reproductive fitness and, ultimately, the evolution of host populations in a myriad of ways. The fitness implications of parasitic infections range from increased host mortality to subtle changes in reproductive investment. From alterations of behaviors, sexual signaling, and competitive ability to changes...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Emily J. Uhrig for the degree of Doctor of Philosophy in

Chronobiology of garter snakes : environmental and hormonal mechanisms mediating hibernation and reproduction

Creator:: Lutterschmidt, Deborah I.
Abstract:: Most vertebrates exhibit seasonality in many life history traits. Such seasonal rhythms are temporally organized via the transduction of environmental cues (e.g., photoperiod, temperature) into appropriate endocrine signals. However, among ectothermic vertebrates that undergo continuous winter dormancy, temperature is the only environmental cue available for synchronizing seasonal rhythms. Most intriguing...
Resource Type:: Dissertation
Full Text:: , Carl B. Schreck, and Barbara A. Shields – for their academic support and contributions to my

An Integrated Approach to Gauge the Effects of Global Climate Change on Headwater Stream Ecosystems

Creator:: Bury, Gwendolynn W.
Abstract:: Climate change is predicted to affect ecosystems, including systems already stressed by human impacts. One ecosystem that is already highly impacted by human land use is the cold headwater stream system of the Pacific Northwest. One method of assessing the function of an ecosystem is by using an indicator species....
Resource Type:: Dissertation
Full Text:: Ecosystems. Abstract approved: ______________________________________________________ Stevan J

Effects of environmental stress on intertidal mussel reproduction

Creator:: Petes, Laura E.
Abstract:: Environmental stress can negatively affect the ability of organisms to reproduce. Energetic trade-offs exist in all organisms, and under stress, energy may be allocated away from reproduction and towards physiological defense and repair mechanisms. The rocky intertidal environment is ideal for investigating the influence of environmental stress, as organisms are...
Resource Type:: Dissertation
Full Text:: Morgan Packard provided invaluable assistance with field experiments and physiological assays. Carl

Onset and breakdown of cnidarian-dinoflagellate symbiosis : a survey of the host transcriptomic response and characterization of the sphingosine rheostat during symbiont colonization and hyperthermal stress

Creator:: Kitchen, Sheila Ann
Abstract:: The symbiosis between cnidarians, such as corals and sea anemones, and photosynthetic dinoflagellates belonging to the genus Symbiodinium spp. is one of the most productive in the marine environment. This mutualistic endosymbiosis allow reef-building corals to lay down the foundation of coral reef ecosystems, which supports a highly biodiverse community...
Resource Type:: Dissertation
Full Text:: , B., Le Tissier, M. and Bythell, J. (1995). Mechanisms of bleaching deduced from histological

Patterns and mechanisms : postcopulatory sexual selection and sexual conflict in a novel mating system

Creator:: Friesen, Christopher R.
Abstract:: Postcopulatory sexual selection—sperm competition and cryptic female choice—has become a major area of research over the past 40 years. Within this field there are many outstanding questions at every level of analysis, from proximate to ultimate. The fitness consequences for both sexes in the period after copulation and before fertilization...
Resource Type:: Dissertation
Full Text:: trials, and designed the experiment along with Stevan J. Arnold and Robert T. Mason. Christopher R

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:: assistance, advice, support, and friendship (in reverse chronological order): Jodi Schwarz, Melissa

Onset of symbiosis in a cnidarian-dinoflagellate association

Creator:: deBoer, Melissa L.
Abstract:: Scleractinian corals, like many other cnidarians, engage in intracellular symbiosis with dinoflagellates belonging to the genus Symbiodinium. This association makes invaluable structural and energetic contributions to the marine environment and to the coral reef ecosystem in particular. While many aspects of the cnidarian-dinoflagellate relationship have been well studied, nothing is...
Resource Type:: Dissertation
Full Text:: acquire its algae from the surrounding environment (Colley and Trench 1983; Fitt and Trench 1983; Schwarz

Initiation of coral/algal symbioses : the role of cell surface lectin/glycan interactions in recognition and specificity

Creator:: Wood-Charlson, Elisha M.
Abstract:: Mutualistic associations between cnidarians, such as corals, and photosynthetic dinoflagellate algae provide the trophic and structural foundation of coral reef ecosystems. In many cases, this intracellular mutualism is highly specific and must be established anew for each generation of host corals. The ability to maintain partner specificity across generations implies...
Resource Type:: Dissertation
Full Text:: , Christy Schnitzler, and Jody Schwarz. Since most of my thesis was conducted in Hawai’i, I also want to

ScholarsArchive@OSU

Evolution of sodefrin precursor pheromones in salamandrid newts

Reproductive implications of parasitic infections and immune challenges in garter snakes

Chronobiology of garter snakes : environmental and hormonal mechanisms mediating hibernation and reproduction

An Integrated Approach to Gauge the Effects of Global Climate Change on Headwater Stream Ecosystems

Effects of environmental stress on intertidal mussel reproduction

Onset and breakdown of cnidarian-dinoflagellate symbiosis : a survey of the host transcriptomic response and characterization of the sphingosine rheostat during symbiont colonization and hyperthermal stress

Patterns and mechanisms : postcopulatory sexual selection and sexual conflict in a novel mating system

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

Onset of symbiosis in a cnidarian-dinoflagellate association

Initiation of coral/algal symbioses : the role of cell surface lectin/glycan interactions in recognition and specificity

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