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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:: AN ABSTRACT OF THE THESIS OF EDMUND D. BRODIE, JR. for the

Systematics of the salamander genus Dicamptodon strauch (Amphibia: Caudata: Ambystomatidae)

Creator:: Nussbaum, Ronald A.
Abstract:: Dicamptodon is the single, extant genus of the ambystomatid subfamily Dicamptodontinae. Two species, D. ensatus (Eschscholtz) and D. copei Nussbaum are recognized. D. ensatus is found in the forested, mountain regions of northwestern California and western Oregon, in the Willapa Hills and Cascade Mountains of Washington, in extreme southwestern British...
Resource Type:: Dissertation
Full Text:: DICAMPTODONTitle: STRAUCH (AMPHTRTA : CAUDATA AMBYSTOMATIDAE) Redacted for Privacy Abstract approved: Dr. Robert

Geographic variation in Dunn's salamander Plethodon dunni Bishop (Amphibia:Caudata:Plethodontidae)

Creator:: Hanlin, Hugh Grady
Abstract:: Life history attributes and apparent distributional patterns suggest that Plethodon dunni exists as small, semi-isolated populations throughout its range. Isozyme and morphological variation in this species was examined to determine any possible geographic trends. Starch gel electrophoresis was utilized to examine genetic variation at 24 isozyme loci in 287 individuals...
Resource Type:: Dissertation
Full Text:: Privacy Dr. Robert M. Storm Life history attributes and apparent distributional patterns suggest that

A dietary and morphometric analysis of sceloporine (Iguanidae) lizard populations

Creator:: White, Robert Lewis, II
Abstract:: Analyses of sympatric and allopatric populations of Sceloporus occidentalis and S. graciosus from central Oregon indicate a high degree of similarity in diet. Relative abundance, the equivalent number of equally common taxa (E), and the probability of similarity (SIMI) were used in the analyses. Shifts in diet between populations of...
Resource Type:: Dissertation
Full Text:: (Iguanidae) lizard populations AN ABSTRACT OF THE THESIS OF ROBERT LEWIS WHITE, II for the degree of

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:: student) Zoology (Major) presented on Ph. D. (Degree) Title: VARIATIONS IN SALINITY TOLERANCE IN THE

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

Morphological variations in populations of Lacerta from islands in the Adriatic Sea

Creator:: Clover, Robert C.
Abstract:: Phenetic relationships in insular populations of Lacerta sicula and L. melisellensis correspond to geologic ages of the islands in two regions of the Adriatic Sea. Populations of L. melisellensis on older islands are more similar to populations of L. sicula than are L. melisellensis from younger islands, and examination of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF ROBERT C. CLOVER for the degree

A distributional study of the birds of Montana

Creator:: Davis, Clifford Vernon, 1914-
Resource Type:: Dissertation
Full Text:: Redacted for Privacy s s e s s s ê ê u u u I e ;-. . I S ê S e Dean of Graduate chool March 171 1961

A study of the vocal behavior of the American robin

Creator:: Benson, Jane Rae
Abstract:: To gain a better foothold on the communication system of the avifauna, calls and songs of the American Robin (Turdus migratorius) were recorded and analyzed using the sound spectrograph. Ten different calls were recognized as follows: three alarm calls, an excitement call, challenge call, contact call, two flight calls and...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: 'Redacted for Privacy Robert M. Storm To gain a better foothold on the communication

ScholarsArchive@OSU

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

Geographic variation and systematics of the western Plethodon

Systematics of the salamander genus Dicamptodon strauch (Amphibia: Caudata: Ambystomatidae)

Geographic variation in Dunn's salamander Plethodon dunni Bishop (Amphibia:Caudata:Plethodontidae)

A dietary and morphometric analysis of sceloporine (Iguanidae) lizard populations

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

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

Morphological variations in populations of Lacerta from islands in the Adriatic Sea

A distributional study of the birds of Montana

A study of the vocal behavior of the American robin

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