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Geographic variation and systematics of the western Plethodon

Creator:: Brodie, Edmund D.
Abstract:: The western Plethodon include vandykei vandykei, v. idahoensis, larselli, dunni,vehiculum, stormi, elongatus, and an undescribed form referred to as the "unstriped" Plethodon. These salamanders have been placed into three species groups: the Vandykei group, the Vehiculum group, and the Elongatus group. Range maps are provided and geographic variation is discussed...
Resource Type:: Dissertation
Full Text:: SYSTEMATICS OF THE WESTERN PLETHODON Abstract approved: Redacted for Privacy Dr. Robert M. Storm The

An analysis of vocalizations of the rufous-sided towhee Pipilo erythrophthalmus oregonus (Bell)

Creator:: Beltz, Joan Dunkel
Abstract:: The purpose of this study was to record on tape and to analyze the sonagrams of the complete repertoire of the vocalizations of the Rufous-sided Towhee, Pipilo erythrophthalmus oregonus. Meanings were assigned to a number of the calls. Sounds of nestlings, juveniles, and vocalizations connected with parental care were not...
Resource Type:: Dissertation
Full Text:: , and who willingly undertook the tediurn of editing this rnanuscript. Robert C. Stein, who is largely

An analysis of a population of snowshoe hares, Lepus americanus washingtonii Baird, in western Oregon

Creator:: Black, Hugh C., 1941-
Abstract:: The ecology of a population of snowshoe hares, Lepus americanus washingtonii, was studied in western Oregon from 1960 to 1962. Objectives were to obtain information to control hares, which frequently cause damage to coniferous reproduction in the region, and to compare the life history of this little-studied subspecies with others....
Resource Type:: Dissertation
Full Text:: appreciation to my major professor, Dr. Robert M. Storm, for his continued interest and encouragement

The early development of Ambystoma macrodatylum baird, with emphasis on the larval stages

Creator:: Hollenbeck, Robert Rudolph
Abstract:: The embryonic and larval stages of the long-toed salamander, Ambystoma macrodactylum are described from fertilization through the development of five toes on the posterior limbs. New stage numbers are employed in the description of the hind limb. The eggs used in the study were obtained by the injection of pituitary...
Resource Type:: Masters Thesis
Full Text:: , With Emphasis on the Larval Stages AN ABSTRACT OF THE THESIS OF ROBERT RUDOLPH HOLLENBECK for the M

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

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

Breeding behavior and growth rates of Cassin's auklet Ptychoramphus aleutica (Pallias)

Creator:: Thoresen, Asa Clifford
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENT S I wish to express my appreciation to my major professor Dr. Robert Storm, for his assistance

Aspects of the autecology of the plethodontid salamander, Aneides ferreus (Cope)

Creator:: McKenzie, Donald Samuel
Abstract:: Laboratory experiments and simulated field conditions were utilized to gain a better understanding of the ecology of the clouded salamander. Animals collected in western Oregon were utilized for studies in habitat selection, where it was shown that there was a significant pattern of selection of litter types (rock, bark, and...
Resource Type:: Dissertation
Full Text:: ) Abstract approved: Robert M. Storm Laboratory experiments and simulated field conditions were utilized to

Investigations on the toxin of Taricha granulosa

Creator:: Brodie, Edmund D.
Abstract:: There are essentially no publications dealing with the skin toxin of Taricha granulosa. This study has undertaken investigations with this toxin in an attempt to determine its potency and its effect on the newt's potential predators. Test solutions were made by macerating a known volume of newt skin in a...
Resource Type:: Masters Thesis
Full Text:: by Ruth Baines _ it/; -77- ACKNOWLEDGMENTS I am grateful to Dr, Robert M. Storm, my major

A distributional study of the birds of Montana

Creator:: Davis, Clifford Vernon, 1914-
Resource Type:: Dissertation
Full Text:: eleven hundred of the skins used in this study. Dre. Philip L. rirht and Robert S. Hoffmann permitted

ScholarsArchive@OSU

Geographic variation and systematics of the western Plethodon

An analysis of vocalizations of the rufous-sided towhee Pipilo erythrophthalmus oregonus (Bell)

An analysis of a population of snowshoe hares, Lepus americanus washingtonii Baird, in western Oregon

The early development of Ambystoma macrodatylum baird, with emphasis on the larval stages

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

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

Breeding behavior and growth rates of Cassin's auklet Ptychoramphus aleutica (Pallias)

Aspects of the autecology of the plethodontid salamander, Aneides ferreus (Cope)

Investigations on the toxin of Taricha granulosa

A distributional study of the birds of Montana

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