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An investigation into the metamorphosis of Dicamptodon ensatus (Eschscholtz)

Creator:: Clothier, Glen Warren
Abstract:: The investigation was conducted from January 1965 to March 1966. An intensive effort was made to obtain large numbers of animals, as it is believed that unavailability of specimens has been the limiting factor in the amount of research concerning this species. Two hundred and sixty-nine animals were collected. They...
Resource Type:: Masters Thesis
Full Text:: (Name) (Degree) (Major) Date thesis is presented /1Ic,L Title AN INVESTIGATION INTO THE

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:: recently fallen logs, and reduced cover of Douglas-fir. To investigate patterns of competition

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:: Study Area . . ......... 4 2. Douglas Fir Forest ............ 16 3. AGladeArea . . . .......... 17 4

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:: observa- tion, and after escape movement. MG = mud/grass; G = grass; W = wood; M = bare mud; L = log; 0

A distributional study of the birds of Montana

Creator:: Davis, Clifford Vernon, 1914-
Resource Type:: Dissertation
Full Text:: eleven hundred of the skins used in this study. Dre. Philip L. rirht and Robert S. Hoffmann permitted

Summer bird habitats in the Corvallis area, Willamette Valley, Oregon

Creator:: Eddy, Richard Hewes, 1929
Resource Type:: Masters Thesis
Full Text:: the McDonald Forest ridge. The dominant tree is douglas fir (Fseudotau ja taxifolia). The main

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:: Thompson Timber Company generously granted permission to conduct the study on his property. Dr. Wayland L

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

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:: , Oregon. Most animals were captured by an L-shaped drift fence with drop cans as they migrated into the

ScholarsArchive@OSU

An investigation into the metamorphosis of Dicamptodon ensatus (Eschscholtz)

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

Small mammal micro- and macrohabitat selection in streamside ecosystems

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

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

A distributional study of the birds of Montana

Summer bird habitats in the Corvallis area, Willamette Valley, Oregon

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

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

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

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