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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:: (Amphibia:Caudata:Ambystomatidae) AN ABSTRACT OF THE THESIS OF RONALD A. NUSSBAUM for the DOCTOR OF PHILOSOPHY (Name) (Degree

Studies on the biology of Triturus granulosus Skilton

Creator:: Pimentel, Richard A.
Resource Type:: Dissertation
Full Text:: . Robert M. Storm totally lost this pinentation in the laboratory. Perhaps this is not a normal

A capture-recapture analysis of a mountain beaver population in western Oregon

Creator:: Lovejoy, Bill Pertl
Abstract:: This report summarizes the results of a field study of a population of the Pacific mountain beaver, Aplodontia rufa pacifica, from August 1965 through August 1967. The study site consisted of a 13. 5- acre grid on a logged over area in the Coast Range Mountains of Benton County, Oregon....
Resource Type:: Dissertation
Full Text:: privacy Dr. Robert M. Storm This report summarizes the results of a field study of a popula- tion of the

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:: . A Dietary and Morphometric Analysis of Sceloporine (Iguanidae) Lizard Populations by Robert Lewis

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

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:: An analysis of a small mammal population census AN

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

A distributional study of the birds of Montana

Creator:: Davis, Clifford Vernon, 1914-
Resource Type:: Dissertation
Full Text:: A Distributional Study of the Birds of Montana A

A study of behavior in the deer mouse Peromyscus maniculatus rubidus Osgood during its 24-hour cycle of activity in a simulated natural habitat

Creator:: Laban, Cornelis
Abstract:: With a growing emphasis on details of behavior comes an increasing need for knowledge of natural behavior patterns. Studies on the life history of Peromyscus maniculatus have long been available in the literature. More recently, investigators have turned to analyzing the behavior of some of the subspecies of P.m. in...
Resource Type:: Dissertation
Full Text:: A study of behavior in the deer mouse Peromyscus

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:: A comparative study of the chromosomes from five species

ScholarsArchive@OSU

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

Studies on the biology of Triturus granulosus Skilton

A capture-recapture analysis of a mountain beaver population in western Oregon

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

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

An analysis of a small mammal population census

A study of the vocal behavior of the American robin

A distributional study of the birds of Montana

A study of behavior in the deer mouse Peromyscus maniculatus rubidus Osgood during its 24-hour cycle of activity in a simulated natural habitat

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

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