Index Catalog // ScholarsArchive@OSU

Ecology of breeding mallards : nest parasitism; brood survival; and habitat utilization

Creator:: Talent, Larry Gene
Abstract:: In 1976 and 1977 I examined three broad problems associated with the recruitment of young mallards, Anas platyrhynchos, in the Prairie Pothole Region of North Dakota. The three problems studied were: the effects of interspecific nest parasitism on production; the chronology and magnitude of total-brood loss during the brood-rearing period;...
Resource Type:: Dissertation

Hormonal and osmoregulatory aspects of smoltification in coho salmon, Oncorhynchus kisutch

Creator:: Specker, Jennifer Lee
Abstract:: Coho salmon smolts (Oncorhynchus kisutch) were transported at low and high densities. (12 and 120 g/L) for short and long periods (4 and 12 h). Because smolts can be transplanted directly to seawater, half of the fish in each treatment were transported to tanks containing seawater and half to tanks...
Resource Type:: Dissertation

Proteoglycans in the inner limiting membrane and their influence on axonal behavior in embryonic chicken retina

Creator:: Chai, Lin
Resource Type:: Dissertation

The ontogeny and mediation of sexual size dimorphism in the red-spotted garter snake, Thamnophis sirtalis concinnus

Creator:: Lerner, Darren T.
Abstract:: A wide range of environmental and physiological factors influence the type and extent of sexual dimorphism found in animals. Influential factors include variable climate, competition for resources and mates, mate choice, and parental investment. In addition, some investigators attribute differences in body size to physiological factors influenced by genetic and...
Resource Type:: Masters Thesis

Stress induced differential gene expression in the brain of juvenile steelhead trout, (Oncorhynchus Mykiss)

Creator:: Schwindt, Adam R.
Abstract:: Gene expression profiles of tissues and cell-lines can be powerful tools for documenting the genetic response to a particular treatment, such as stressors. However, there is a paucity of information on the genetic stress response in the brain. Therefore, we attempted to profile gene expression in the brain of juvenile...
Resource Type:: Masters Thesis

Comparative nutrient intake and biochemical interrelationships among healthy vegetarian and nonvegetarian Seventh-Day Adventists, nonvegetarians, and hormone dependent cancer subjects

Creator:: Shultz, Terry Dale
Abstract:: The purposes of the research presented in this thesis were to: (l) assess the nutritional status of vegetarian and nonvegetarian Seventh-day Adventists (SDA), non-SDA non-vegetarians, and non-vegetarian hormone dependent cancer subjects; (2) determine the relationship of various blood and urinary biochemical parameters to dietary intake; (3) determine hormonal status in...
Resource Type:: Dissertation

Pheromone mechanisms and behavioral strategies for maximizing courtship success in a terrestrial salamander, Plethodon shermani

Creator:: Vaccaro, Elyse A.
Abstract:: Darwin devised the evolutionary theory of sexual selection to account for the manifold extravagances of courtship behaviors and displays. Mating interactions represent a major evolutionary process driving the elaboration, vibrancy, and peculiarity of these courtship traits. For my dissertation research, I strived to elucidate the dynamics that constitute the complex...
Resource Type:: Dissertation

Interrenal and metabolic responses to stress and their modifying factors in juvenile salmonid fishes

Creator:: Barton, Bruce Alexander
Abstract:: Genetic, ontogenetic, and environmental factors modified characteristic interrenal and glycemic responses to stress in juvenile salmonid fishes. During continuous confinement stress, plasma cortisol rose more quickly in chinook salmon, Oncorhynchus tshawytscha, acclimated to high rather than medium or low temperatures; hyperglycemia following either acute or chronic stress was also highest...
Resource Type:: Dissertation

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

ScholarsArchive@OSU

Ecology of breeding mallards : nest parasitism; brood survival; and habitat utilization

Hormonal and osmoregulatory aspects of smoltification in coho salmon, Oncorhynchus kisutch

Proteoglycans in the inner limiting membrane and their influence on axonal behavior in embryonic chicken retina

The ontogeny and mediation of sexual size dimorphism in the red-spotted garter snake, Thamnophis sirtalis concinnus

Stress induced differential gene expression in the brain of juvenile steelhead trout, (Oncorhynchus Mykiss)

Comparative nutrient intake and biochemical interrelationships among healthy vegetarian and nonvegetarian Seventh-Day Adventists, nonvegetarians, and hormone dependent cancer subjects

Pheromone mechanisms and behavioral strategies for maximizing courtship success in a terrestrial salamander, Plethodon shermani

Interrenal and metabolic responses to stress and their modifying factors in juvenile salmonid fishes

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

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