Index Catalog // ScholarsArchive@OSU

Aquatic insect adaptations to different flow regimes

Creator:: Yamamuro, Asako Melody
Abstract:: My thesis explored the effects of environmental variability on population dynamics and community composition of aquatic insects. Environmental variability in the form of flow regime in streams can limit the distribution and life-history traits of aquatic insects. I used tributaries to the McKenzie River in Oregon with dramatically different flow...
Resource Type:: Dissertation
Full Text:: and community composition of aquatic insects. Environmental variability in the form of flow regime

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:: interact, detecting and predicting the ultimate consequences for the health of animal, including human

Thermal ecology of the garter snakes Thamnophis sirtalis concinnus (Hallowell) and Thamnophis ordinoides (Baird & Girard)

Creator:: Stewart, Glenn R.
Abstract:: In recent years, studies dealing with temperature regulation, temperature sensitivity, and physiological responses to temperature in lizards and other reptiles have increased tremendously. It is notable that snakes have been largely ignored in such studies. This no doubt is due to their less direct relationship to ancestral endotherms. However, problems...
Resource Type:: Dissertation
Full Text:: dealing more specifically with the temperature re- sponses of aquatic groups of animals or various kinds

Exploring reproductive signaling using nonconventional aquatic models : Aging and reproductive function in killifish and sea anemones

Creator:: Ferguson, Lindsey G.
Abstract:: Aquatic animals possess surprising similarities to humans in reproductive signaling that are simplified or elaborated for life underwater, making them useful for studying reproductive control. In this thesis, killifish and sea anemones are used as models for reproductive function and aging. The aging model Nothobranchius (killifish) was used to investigate...
Resource Type:: Honors College Thesis
Full Text:: follicle stimulating hormone receptor. These projects together provide a One Health view of

Ultraviolet radiation as an environmental stressor of amphibians

Creator:: Bancroft, Betsy A.
Abstract:: My thesis explored the effects of and potential mediating mechanisms for an important environmental stressor, ultraviolet-B (UVB) radiation. UVB radiation has negative effects on organisms in both terrestrial and aquatic systems. I used meta-analysis to quantify the effects of UVB radiation on a diversity of aquatic organisms (Chapter 2). UVB...
Resource Type:: Dissertation
Full Text:: quantify the effects of UVB radiation on a diversity of aquatic organisms (Chapter 2). UVB negatively

An investigation of the alarm response in anuran amphibian larvae

Creator:: Hews, Diana K.
Abstract:: The results of my research suggest that tadpoles of the Western toad (Bufo boreas) and the Cascades frog (Rana cascadae) display an alarm response to chemicals from injured conspecific tadpoles. Furthermore, results suggest that the Bufo boreas alarm response can be elicited by a natural predator when it feeds on...
Resource Type:: Masters Thesis
Full Text:: to chemicals released from injured conspecifics occurs in a wide variety of aquatic animals

A study of the effects of exposure to air on the respiration of two intertidal snails

Creator:: Baker, Carol Dianne
Abstract:: Callistoma costatum and Tegula funebralis, marine intertidal snails from low and high littoral zones respectively, were exposed to air for two, six and twelve hour periods, during which time their oxygen consumption rates were measured. The animals were then immersed in sea water and their respiration rates recorded for a...
Resource Type:: Masters Thesis
Full Text:: corrected to a standard 0.1 gram animal using plots of metabolic rate versus weight. Calliostoma has a

An analysis of a small mammal population census

Creator:: Schamberger, Melvin
Abstract:: During the spring of 1963 and 1964 an investigation of a small mammal community was made in McDonald Forest, near Corvallis, Oregon. The revised North American Census of Small Mammals procedure was used, and from this census the species composition of the community was determined. The relationships of several genera...
Resource Type:: Masters Thesis
Full Text:: the home range of an animal seems to have an important relationship to the relative position of

A study of behavior in the deer mouse Peromyscus maniculatus rubidus Osgood during its 24-hour cycle of activity in a simulated natural habitat

Creator:: Laban, Cornelis
Abstract:: With a growing emphasis on details of behavior comes an increasing need for knowledge of natural behavior patterns. Studies on the life history of Peromyscus maniculatus have long been available in the literature. More recently, investigators have turned to analyzing the behavior of some of the subspecies of P.m. in...
Resource Type:: Dissertation
Full Text:: 3 Ethology 5 Field Studies 7 Animal Behavior 12 OBJECTIVES 19 Problems of Special Interest 20

Aquatic community responses to drought disturbance: experimental manipulations of top predator extinctions and stream drying

Creator:: Boersma, Kate S.
Abstract:: Although it is generally assumed that the intensifying abiotic environment is the primary effect of drought on aquatic organisms, drought-induced top predator extinctions may be an important underlying mechanism. I used manipulative experiments to disentangle the impacts of drying and top predator extinctions on arid-land aquatic invertebrate communities. I then...
Resource Type:: Dissertation
Full Text:: , 2013. Title: Aquatic community responses to drought disturbance: Experimental manipulations of top

ScholarsArchive@OSU

Aquatic insect adaptations to different flow regimes

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

Thermal ecology of the garter snakes Thamnophis sirtalis concinnus (Hallowell) and Thamnophis ordinoides (Baird & Girard)

Exploring reproductive signaling using nonconventional aquatic models : Aging and reproductive function in killifish and sea anemones

Ultraviolet radiation as an environmental stressor of amphibians

An investigation of the alarm response in anuran amphibian larvae

A study of the effects of exposure to air on the respiration of two intertidal snails

An analysis of a small mammal population census

A study of behavior in the deer mouse Peromyscus maniculatus rubidus Osgood during its 24-hour cycle of activity in a simulated natural habitat

Aquatic community responses to drought disturbance: experimental manipulations of top predator extinctions and stream drying

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