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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:: considered as a possible major component of prey selection. Adult S. occidentalis (Davis, 1967; Rose, 1976a

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:: northern Pacific Coast form, /4 which typically is associated with areas of dense vegetation. T. s

A distributional study of the birds of Montana

Creator:: Davis, Clifford Vernon, 1914-
Resource Type:: Dissertation
Full Text:: Redacted for Privacy / s ê ê u I / u s s ê s s S5 . . . Chairman of Dartment of Zoo1ory Redáàted for

An analysis of vocalizations of the rufous-sided towhee Pipilo erythrophthalmus oregonus (Bell)

Creator:: Beltz, Joan Dunkel
Abstract:: The purpose of this study was to record on tape and to analyze the sonagrams of the complete repertoire of the vocalizations of the Rufous-sided Towhee, Pipilo erythrophthalmus oregonus. Meanings were assigned to a number of the calls. Sounds of nestlings, juveniles, and vocalizations connected with parental care were not...
Resource Type:: Dissertation
Full Text:: this study. Ernest S. Booth, who initiated rny interest in ornithology, encouraged rny professional

Size variation and food habits of larval bullfrogs, Rana catesbeiana Shaw, in western Oregon

Creator:: Brown, Randall Errol
Abstract:: An investigation was made of the factors which cause differences in growth rates and transformation size of bullfrog tadpoles under natural conditions. Tadpoles and algal samples were collected from two.adjacent farm ponds of similar size during the eighteen months of the study. It was found that the tadpoles in one...
Resource Type:: Dissertation
Full Text:: effect (Richards, 1958, 1962; Rose, 1960; Akin, 1966; Licht, 1967), hormones produced by the thyroid

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:: and area s where moisture is sufficient. Meanwhile, madrone (Arbutus menziesii), hawthorn

The effect of thiouracil on the daily activity patterns of the golden-crowned sparrow, Zonotrichia atricapilla (Gmelin)

Creator:: Bawdon, Eugene Dale
Resource Type:: Masters Thesis
Full Text:: THE EFFECT OF THIOURACIL ON THE DAILY ACTIVITY PATTERNS OF THE GOLDEN-CROWNED S~RROW. ZONOTRICHIA

Observations on respiratory metabolism in the red-spotted garter snake Thamnophis sirtalis concinnus Hallowell

Creator:: Stewart, Glenn R.
Resource Type:: Masters Thesis
Full Text:: METABOLISM IN THB RED-SPOTTED GARTER SNAKE THAMNOPH!S SIRTALIS CQ!CINNUS HALLOWELL INTRODUCTION When

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:: LD50' s were achieved in the three life stages of frogs collected in the four subspecies areas in

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

Creator:: Eddy, Richard Hewes, 1929
Resource Type:: Masters Thesis
Full Text:: rose (Rosa). At one end of the area are piles of fire wood covered with poison oak, roses, and

ScholarsArchive@OSU

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

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

A distributional study of the birds of Montana

An analysis of vocalizations of the rufous-sided towhee Pipilo erythrophthalmus oregonus (Bell)

Size variation and food habits of larval bullfrogs, Rana catesbeiana Shaw, in western Oregon

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

The effect of thiouracil on the daily activity patterns of the golden-crowned sparrow, Zonotrichia atricapilla (Gmelin)

Observations on respiratory metabolism in the red-spotted garter snake Thamnophis sirtalis concinnus Hallowell

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

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

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