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The respiratory ecology of the rough-skinned newt Taricha granulosa (Skilton)

Creator:: Smith, John Martin
Abstract:: An investigation was undertaken to determine if respiratory changes might occur in conjunction with migrations of the rough-skinned newt, Taricha granulosa (Skilton) in and out of ponds in the Willamette Valley. A field study was carried on from December 1964 through October 1965 to investigate certain physical and chemical parameters...
Resource Type:: Dissertation

A comparative study of the chromosomes from five species of the genus Rana

Creator:: Haertel, John David
Abstract:: The karyotypes of five species of ranid frogs were determined from metaphase plates of bone marrow cells. The colchicine, hypotonic- citrate, blaze-dry technique was used to obtain the plates. Morphometric datawere obtained from the karyotypes and compared with other species of the genus Rana. Like most other members of the...
Resource Type:: Dissertation
Full Text:: of the genus Rana AN ABSTRACT OF THE THESIS OF JOHN DAVID HAERTEL for the (Name of student) in

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:: Baird and Girard and Rana cascadae Slater AN ABSTRACT OF THE THESIS OF JOHN DAVID HAERTEL for the M

The habitat requirements and ecological relationships of Microtus oregoni (Bachman), Microtus townsendii (Bachman), and Microtus montanus (Peale) in Benton County, Oregon

Creator:: Goertz, John William
Abstract:: The object of this research is to ascertain the habitat occupied by each of the three species of voles of the genus Microtus found living in Northern Benton County, Oregon.
Resource Type:: Masters Thesis
Full Text:: TOWNSENDII (BACHNAN), AND MICROTUS MONTANUS (PEALE) IN BENTON COUNTY, OREGON JOHN WILLIAM GOERTZ A

Summering birds of the Cape Arago region, Coos County, Oregon

Creator:: Giesler, John Calvin
Resource Type:: Masters Thesis
Full Text:: , Oregon S US ' .ING BIRDS OF THE CAPE ARAGO REGION COOS COUNTY, OREGON by JOHN CALVIN GIESLER A

Habitat selection behavior in three species of anuran larvae : environmental cues, ontogeny, and adaptive significance

Creator:: O'Hara, Richard K.
Abstract:: Habitat selection behavior was investigated as a proximate mechanism influencing spatial distributions of three species of anuran larvae. Rana cascadae, Hyla regilla, and Bufo boreas overlap in distribution in lakes and ponds of the Cascade Mts. and were chosen to provide a comparative basis for analyzing habitat selection behavior. Major...
Resource Type:: Dissertation

Experimental crosses between Rana aurora Baird and Girard and Rana aurora cascadae Slater

Creator:: Porter, Kenneth Raymond
Resource Type:: Masters Thesis
Full Text:: the research of John A. Moore, E. Peter Volpe, and W. Frank Blair on frogs and toads. For example

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

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:: different areas can be directly compared. With this purpose in mind, John C. Calhoun established the

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

ScholarsArchive@OSU

The respiratory ecology of the rough-skinned newt Taricha granulosa (Skilton)

A comparative study of the chromosomes from five species of the genus Rana

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

The habitat requirements and ecological relationships of Microtus oregoni (Bachman), Microtus townsendii (Bachman), and Microtus montanus (Peale) in Benton County, Oregon

Summering birds of the Cape Arago region, Coos County, Oregon

Habitat selection behavior in three species of anuran larvae : environmental cues, ontogeny, and adaptive significance

Experimental crosses between Rana aurora Baird and Girard and Rana aurora cascadae Slater

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

An analysis of a small mammal population census

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

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