Index Catalog // ScholarsArchive@OSU

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:: Douglas -fir. Traps usually were set for three successive days at monthly intervals. Trapped hares

Small mammal micro- and macrohabitat selection in streamside ecosystems

Creator:: Doyle, Arlene T.
Abstract:: During summer and fall of 1981 to 1983, mark-recapture was conducted in riparian and upland habitats within old-growth and mature forests in the Cascade Range of Oregon. Number of individuals and species richness were greater in riparian than upland habitat. For most species, the mean adult weights and the percentages...
Resource Type:: Dissertation
Full Text:: separation based on cover of lichen and deciduous trees and distance from the creek. Specifically, C

Investigation of the circadian rhythm of locomotion in the rough-skinned newt, Taricha granulosa

Creator:: Briggs, Jeffrey Lawrence
Abstract:: Over 56,000 hours of locomotor activity of Taricha granulosa were recorded using two types of low cylindrical plastic monitoring chambers. This species shows distinct rhythms of activity under normal day-night cycles, shortened day-night cycles, constant darkness (DD) and constant light (LL). The rough-skinned newt is day active and crepuscular. I...
Resource Type:: Dissertation
Full Text:: when given a choice between light and temperature. Activity generally ceases below 6°C regardless of

Breeding habits, embryonic thermal requirements and embryonic and larval development of the Cascade frog, Rana cascadae Slater

Creator:: Sype, William E.
Abstract:: The breeding habits and embryonic thermal requirements of the Cascade frog of Oregon, Rana cascadae Slater, are described. The limits of temperature tolerance of the pre-feeding stages are from 6° to 27°C for embryos held at constant temperatures. However, for pre-feeding embryos exposed at different developmental stages for short durations...
Resource Type:: Dissertation
Full Text:: described. The limits of temperature tolerance of the pre-feeding stages are from 6° to 27°C for embryos

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:: effects of size, temperature (10, ZO, 5°C), and feeding regime were noted. Young animals displayed the

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:: continued guidance and encouragement during the course of this study. I also wish to thank Dr. Hugh C

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:: , Department of Zolbrogi Redacted for Privacy \t"Dean of C aduate Scholl Date thesis is presented 22 January

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

Creator:: Voth, Elver Howard, 1923-
Resource Type:: Dissertation
Full Text:: Northwest forest industry on natural and planted regeneration sites, primarily to Douglas fir, by clipping

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:: during the past three years. I am indebted to Dr. Philip C. Dumas for the loan of electrophoretic

Orientation and navigation in the rough-skinned newt, Taricha granulosa

Creator:: Darrow, Thomas D.
Abstract:: In the field of herpetology, most studies of homing have been carried out with anurans and, to a lesser degree, reptiles. Studies of orientation and navigation in urodeles have been limited to a few brief notes and the extensive investigation of Taricha rivularis by Twitty (1959 and 1964). The rough-skinned...
Resource Type:: Dissertation
Full Text:: . Victor C. Twitty of Stanford University, I extend my deepest appreciation for providing incentive and

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:: , Museum of Vertebrate Zoology, University of California, Berkeley, Robert C. Stebbins and R. Bruce Bury

The ecological sympatric relations of Plethodon dunni and Plethodon vehiculum

Creator:: Dumas, Philip Conrad
Resource Type:: Dissertation
Full Text:: opportunity to express my appreciation to the many people who have assisted in this problem. Dr. Francis C

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:: temperature of T. s. concinnus and and T. ordinoides acclimated at room temperature (x), 8° C. ( ), and 32

Studies on the biology of two ambystomid and five plethodontid salamanders of western Oregon

Creator:: Freiburg, Richard Eighme
Resource Type:: Dissertation
Full Text:: eproduotive System s*seseiseae.se.esesesssse.sas.issai 14 S ex Ratio i s a s i s s s s s s s c e e e s s e i

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

Creator:: Ferguson, Denzel
Resource Type:: Dissertation
Full Text:: : Mr. C. M. Beatty, Glacier National Park; Dr. Royal Bruce Brunson, Montana State University; Dr. G

Studies on the biology of Triturus granulosus Skilton

Creator:: Pimentel, Richard A.
Resource Type:: Dissertation
Full Text:: male, and figure C portrys an aquatic female. /):. :; .1:» 'L i: 1$ r :) A B C

A distributional study of the birds of Montana

Creator:: Davis, Clifford Vernon, 1914-
Resource Type:: Dissertation
Full Text:: Date thesis is presented..5555.....5451555. Typed by Naude B. Davia ACKNOWLEDGMEN'rS Dr. C. A

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:: surrounded by a hedge of Douglas spirea (Spirea douglassi), the lower branches of which are submerged

ScholarsArchive@OSU

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

Small mammal micro- and macrohabitat selection in streamside ecosystems

Investigation of the circadian rhythm of locomotion in the rough-skinned newt, Taricha granulosa

Breeding habits, embryonic thermal requirements and embryonic and larval development of the Cascade frog, Rana cascadae Slater

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

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

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

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

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

Orientation and navigation in the rough-skinned newt, Taricha granulosa

Geographic variation and systematics of the western Plethodon

The ecological sympatric relations of Plethodon dunni and Plethodon vehiculum

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

Studies on the biology of two ambystomid and five plethodontid salamanders of western Oregon

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

Studies on the biology of Triturus granulosus Skilton

A distributional study of the birds of Montana

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

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