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:: americanus washingtonii baird, in western Oregon AN ABSTRACT OF THE THESIS OF HUGH CLARK BLACK for the Ph

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

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:: hours duration (11°:6°C) with a 24-hour period under con- stant light. Black triangle marks the period

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

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

Experimental hybridization between Rana pretiosa pretiosa Baird and Girard and Rana cascadae Slater

Creator:: Haertel, John David
Abstract:: Experimental crosses between Rana pretiosa pretiosa Baird and Girard and Rana cascadae Slater, resulted in viable hybrids. Reciprocal differences at the time of fertilization are indicated. A high level of success in producing viable hybrids can be obtained if Rana pretiosa pretiosa is the female of the parent species, The...
Resource Type:: Masters Thesis
Full Text:: graph expressing developmental time from stage 25 through 46 of the hybrid at 19° C. 19 5 Hybrid 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

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

Summering birds of the Cape Arago region, Coos County, Oregon

Creator:: Giesler, John Calvin
Resource Type:: Masters Thesis
Full Text:: LT.), salmon berry (Rubus spectabilis) salad (Oaultheria shallon ), and black twin-berry cora

ScholarsArchive@OSU

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

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

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)

Small mammal micro- and macrohabitat selection in streamside ecosystems

Experimental hybridization between Rana pretiosa pretiosa Baird and Girard and Rana cascadae Slater

Geographic variation and systematics of the western Plethodon

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

Summering birds of the Cape Arago region, Coos County, Oregon

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