Index Catalog // ScholarsArchive@OSU

The comparative histochemistry of the decapod antennal gland--esterases, phosphatases and glycogen

Creator:: Fuller, Eugene G.
Abstract:: The distributions of alkaline phosphatase, acid phosphatase, non-specific esterases, and glycogen were described for the antennal glands of the freshwater crayfish, Pacifastacus, and the marine crabs Cancer and Pugettia. Alkaline phosphatase is confined primarily to the luminal edge of the labyrinth in all of the above forms whereas acid phosphatase...
Resource Type:: Dissertation
Full Text:: (Markert and Hunter, 1959; Hunter, et. al. , 1964). The esterases have been investigated

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:: Brostoff 1983, Hay 1985, Carpenter 1986, S.M. Lewis 1986, Menge et al. 1986, Schiel and Foster 1986, and

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:: multicellular and sometimes physiologically independent (Bold et al. 1987). Because each stage is

Cannibalism in larvae of the long-toed salamander, Ambystoma macrodactylum

Creator:: Wildy, Erica Lynn
Abstract:: Predator-prey interactions have historically been studied to explain patterns of organization observed in populations and communities. They have also been important in understanding the evolution of antipredator responses in prey and counterstrategies in predators. Despite the breadth of knowledge that exists for heterospecific interactions, relatively few studies have investigated the...
Resource Type:: Dissertation
Full Text:: and Nash, 1988), accelerated development (Lannoo et al., 1989; Chapman et al., 1999), and improved

Behavioral adaptations and the minimization of reproductive costs in the male red-sided garter snake, Thamnophis sirtalis parietalis.

Creator:: O'Donnell, Ryan P.
Abstract:: The benefits of reproduction are clear, but there are also costs. Much is known about the costs of reproduction in females, but only recently have male costs been investigated in any depth. These costs of reproduction may be minimized by appropriately modifying behavior, but there has been little research on...
Resource Type:: Masters Thesis
Full Text:: : Pentatomidae). Entomologia Experimentalis et Applicata 27:105-116. Herberstein M. E., J. M. Schneider, M. A

Indirect effects of ultraviolet-B radiation on larval amphibians as mediated by food quality and trophic interactions

Creator:: Scheessele, Erin A.
Abstract:: Ultraviolet-B radiation (UVB) is an abiotic stressor in both terrestrial and aquatic systems. The stratospheric ozone layer, depleted due to anthropogenic activities and the cause of elevated UVB at earth's surface over the last four decades, is predicted to recover by 2065. However, UVB levels in aquatic systems may continue...
Resource Type:: Dissertation
Full Text:: to Rogers et al. (2001) the inspiration and jumping- off-point for my dissertation. John Romansic

The effects of community composition, landscape structure, and climate on host-pathogen interactions

Creator:: Moore, Sean M.
Abstract:: Like other species interactions in ecological systems, host-pathogen interactions are influenced by environmental factors, landscape characteristics and the broader community context. My thesis explores the potential influences of food-web interactions (Chapter 2), climate change (Chapter 3), landscape structure and host movement patterns (Chapter 4), and the combined influences of local...
Resource Type:: Dissertation
Full Text:: many ecological communities. Pathogens can regulate host populations (Tompkins et al., 2002a) and

Mutual mate choice in a terrestrial salamander, Plethodon shermani, with long-term sperm storage

Creator:: Eddy, Sarah L.
Abstract:: Sexual selection can influence the mating system of an organism through multiple mechanisms. These mechanisms result in variation in reproductive success among individuals, and include scramble competition, endurance rivalries, contests, mate choice and cryptic choice, and sperm competition. Understanding the mating system of a species requires the identification of which...
Resource Type:: Dissertation
Full Text:: et al. 2000) or indirect competitive actions as when a male Satin Bowerbird competes for mates via

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:: et al. 2008). Postcopulatory selection can profoundly affect the 2 evolution of mating

ScholarsArchive@OSU

The comparative histochemistry of the decapod antennal gland--esterases, phosphatases and glycogen

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

Evolutionary and ecological interactions affecting seaweeds

Cannibalism in larvae of the long-toed salamander, Ambystoma macrodactylum

Behavioral adaptations and the minimization of reproductive costs in the male red-sided garter snake, Thamnophis sirtalis parietalis.

Indirect effects of ultraviolet-B radiation on larval amphibians as mediated by food quality and trophic interactions

The effects of community composition, landscape structure, and climate on host-pathogen interactions

Mutual mate choice in a terrestrial salamander, Plethodon shermani, with long-term sperm storage

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

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