Index Catalog // ScholarsArchive@OSU

Stress and reproduction in male garter snakes

Creator:: Moore, Ignacio T.
Abstract:: Animals respond to stressful situations with increases in plasma levels of glucocorticoid stress hormones. These hormones originate from the adrenal cortex in response to stimulation of the hypothalamic-pituitary-adrenal axis. Glucocorticoids (corticosterone in reptiles) function to mobilize energy and suppress unnecessary functions until the stress passes. Among these immediately unnecessary functions...
Resource Type:: Dissertation
Full Text:: December 1, 1999. Title: Stress and Reproduction in Male Garter Snakes. Abstract approved: Robert T

The role of luteinizing hormone-releasing hormone in the neuroendocrine control of seasonal reproduction in male rough-skinned newts, Taricha granulosa

Creator:: Zoeller, Robert T.
Abstract:: One hypothesis proposed to explain how the endocrine system controls reproductive cycles in seasonally breeding animals is that the hypothalamus undergoes seasonal changes in sensitivity to negative feedback by gonadal steroids. The result is seasonal changes in the secretion of luteinizing hormone-releasing hormone (LHRH) and gonadotropin secretion. The present experiments...
Resource Type:: Dissertation
Full Text:: THE THESIS OF Robert T. Zoeller for the degree of Doctor of Philosophy in Zoology presented on

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:: Mediating Hibernation and Reproduction. Abstract approved: Robert T. Mason Most vertebrates

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:: mansoni AN ABSTRACT OF THE THESIS OF Carl A. Boswell for the degree of Doctor of Philosophy in Zoology

Food habits of the Pacific mountain beaver, Aplodontia rufa pacifica Merriam

Creator:: Voth, Elver Howard, 1923-
Resource Type:: Dissertation
Full Text:: Abstract approved: Dr. Robert M. Storm The mountain beaver causes extensive loss to the Pacific

Pre-hatching stages of the tailed frog, (Ascaphus truei) (Stejnegar)

Creator:: Wernz, James George
Abstract:: Description of anuran larvae with the use of staging tables is a common practice in the study of frog life-histories, but there has been no previous description or table of Ascaphus larvae. In comparing Ascaphus larvae to a simplified staging table for anurans it was found that these larvae vary...
Resource Type:: Masters Thesis
Full Text:: ; Slipp and Carl, 1943; and Carl, 1955). It was first found east of the Cascades in Washing- ton

The geographic variation and distribution of the long-toed salamander, Ambystoma macrodactylum Baird

Creator:: Ferguson, Denzel
Resource Type:: Dissertation
Full Text:: . Clifford Carl, Provincial Museum of' British Columbia; I)r. Doris N. Cochran., United States 1ational

Population and home range studies of Peromyscus maniculatus gambelii in the Strawberry Mountains, Grant County, Oregon

Creator:: Moore, Robert Emmett
Resource Type:: Masters Thesis
Full Text:: PlaoMYscus nANI9U~U~ GAMBELII IN THE STRAWBEBRYOUNTAINS, GBANT COUNTY , OREGON by ROBERT EM ETT MOORE

Experimental hybridization between Rana pretiosa pretiosa Baird and Girard and Rana cascadae Slater

Creator:: Haertel, John David
Abstract:: Experimental crosses between Rana pretiosa pretiosa Baird and Girard and Rana cascadae Slater, resulted in viable hybrids. Reciprocal differences at the time of fertilization are indicated. A high level of success in producing viable hybrids can be obtained if Rana pretiosa pretiosa is the female of the parent species, The...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGEMENT It gives me real pleasure to express my appreciation to my major professor, Dr. Robert M

Studies on the biology of two ambystomid and five plethodontid salamanders of western Oregon

Creator:: Freiburg, Richard Eighme
Resource Type:: Dissertation
Full Text:: food habita portion of this thesis. Dr. Iran Pratt, Carl E. ond and Dr. Paul O. Fitcher also aided

ScholarsArchive@OSU

Stress and reproduction in male garter snakes

The role of luteinizing hormone-releasing hormone in the neuroendocrine control of seasonal reproduction in male rough-skinned newts, Taricha granulosa

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

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

Food habits of the Pacific mountain beaver, Aplodontia rufa pacifica Merriam

Pre-hatching stages of the tailed frog, (Ascaphus truei) (Stejnegar)

The geographic variation and distribution of the long-toed salamander, Ambystoma macrodactylum Baird

Population and home range studies of Peromyscus maniculatus gambelii in the Strawberry Mountains, Grant County, Oregon

Experimental hybridization between Rana pretiosa pretiosa Baird and Girard and Rana cascadae Slater

Studies on the biology of two ambystomid and five plethodontid salamanders of western Oregon

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