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Variations in salinity tolerance in the Pacific Treefrog, Hyla regilla, in Oregon

Creator:: Roberts, James Oliver
Abstract:: Eggs, larvae and adults of the four subspecies of Hy la regilla occurring in Oregon as given by Jameson, Mackey and Richmond (1966) were collected and subjected to salt stress in a series of graded seawaters. It was found that in all cases adults were more tolerant than larvae and...
Resource Type:: Dissertation
Full Text:: , Hyla regilla, in Oregon AN ABSTRACT OF THE THESIS OF JAMES OLIVER ROBERTS for the in (Name of

The behavioral ecology of larval and neotonic northwestern salamanders (Ambystoma gracile)

Creator:: Taylor, James Thomas
Abstract:: In the summers of 1973, 1974 and 1975, I investigated population age structure and density, and behaviors relating to habitat selection, predator avoidance and intraspecific interaction in a population of northwestern salamanders in a lake in the Oregon Cascade Mountains. The study was carried out by skin- and scuba-diving at...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF James Thomas Taylor for the

Aggregational behavior in the boreal toad Bufo boreas boreas Baird and Girard

Creator:: Dorsch, Anthony James
Abstract:: The object of this study was to investigate the possibilities of tracing aggregational behavior among Bufo boreas boreas larvae with reference to tadpole development, and to attempt to determine what aggregational factors initiate and maintain this behavior. Additionally, an attempt was made to determine the significance of temperature as an...
Resource Type:: Masters Thesis
Full Text:: boreas baird and girard AN ABSTRACT OF THE THESIS OF Anthony James Dorsch in for the Master of

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:: (Stejneger) AN ABSTRACT OF THE THESIS OF James George Wernz for the M.S. in (Name) Date thesis is

Intra-and interspecific variation in Rana of the central Oregon Cascades and adjacent lowlands

Creator:: Dunlap, Donald Gene
Resource Type:: Masters Thesis
Full Text:: AC 10V LED GME I am deeply indebted to Dr. Robert M. Storm, my najor professor, for both

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

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

Creator:: Ferguson, Denzel
Resource Type:: Dissertation
Full Text:: . Robert C. Stebbins, University of California; Dr. erineth Walkera College of Puget sound. The following

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

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

Creator:: Porter, Kenneth Raymond
Resource Type:: Masters Thesis
Full Text:: particularly indebted to my major professor, Dr. Robert ?, Stonit, who besides suggesting this etudy, has

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:: - ACKNOWLEDGEMENTS I wish to express sincere thanks to my major professor, Dr. Robert M. Storm, for the help

ScholarsArchive@OSU

Variations in salinity tolerance in the Pacific Treefrog, Hyla regilla, in Oregon

The behavioral ecology of larval and neotonic northwestern salamanders (Ambystoma gracile)

Aggregational behavior in the boreal toad Bufo boreas boreas Baird and Girard

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

Intra-and interspecific variation in Rana of the central Oregon Cascades and adjacent lowlands

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

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

Geographic variation and systematics of the western Plethodon

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

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

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