Index Catalog // ScholarsArchive@OSU

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:: , a curious soft song sung with the peak closed, is thought to function in courtship and therefore

Morphological and endocrine correlates of dominance in male ring-necked pheasants (Phasianus colchicus)

Creator:: Lumas, Kathy A.
Abstract:: An investigation of the correlation between a number of behavioral, morphological and physiological parameters and dominance status of male Ring-necked Pheasants (Phasianus colchicus) was undertaken. Dominant males performed significantly more aggressive behaviors than subordinates and a higher proportion of these behaviors was directed toward distantly ranked subordinates. Animals could also...
Resource Type:: Masters Thesis
Full Text:: as bedding. Each individual was marked with a pair of blue vinyl patagial wing tags bearing a

An Osteo-archaeological Investigation of Pinniped Remains at Seal Rock, Oregon (35 LNC 14)

Creator:: Snyder, Sandra L.
Abstract:: Analysis of the pinniped remains from site 35 LNC 14 reveal the presence of four species: Eumetopias jubata (Stellar sea lion), Zalophus californianus (California sea lion), Callorhinus ursinus (Northern fur seal),'and Phoca vitulina (Harbor seal). Ratios based on minimum number of individuals calculations disclose a high incidence of mature Stellar...
Resource Type:: Masters Thesis
Full Text:: during the spring and summer when the ocean was fairly calm. Special sea lion songs were sung before

Population and conservation genetic structure of the Cascades frog, Rana cascadae throughout the species' range

Creator:: Monsen, Kirsten J.
Abstract:: A major goal of conservation biology is to elucidate the population genetic structure in threatened species and assess the relative importance of the evolutionary forces that shape that population genetic structure. I conducted three studies in the declining amphibian Rana cascadae to assess levels of population genetic differentiation and the...
Resource Type:: Dissertation

Temperature stress, gene expression, and innate immunity at the onset of cnidarian-dinoflagellate symbiosis

Creator:: Schnitzler, Christine E.
Abstract:: The intracellular mutualism between cnidarians and photosynthetic dinoflagellates (genus Symbiodinium) is responsible for the physical and trophic structure of diverse coral reef ecosystems. This relationship, based on nutrient exchange, allows for high productivity in tropical waters, which are generally nutrient-poor environments. Numerous environmental stressors currently threaten the health of corals,...
Resource Type:: Dissertation
Full Text:: Commun 338:1607-1616 Chen MC, Cheng YM, Sung PJ, Kuo CE, Fang LS (2003) Molecular identification of

Variation in female reproductive success in amphibians

Creator:: Dyal, Leslie A.
Abstract:: My dissertation focuses on the factors that influence variation in female reproductive success in plethodontid salamanders and in toads. Variation in reproductive success fuels evolutionary change. Although, females often have been overlooked in studies of reproductive success due to perceived lower levels of variation when compared to variation in male...
Resource Type:: Dissertation

Informal Education on an Estuary Nature Trail : A Study of Visitor Knowledge, Attitudes and Behavior

Creator:: Osterman-Sussman, Irene
Abstract:: The Mark 0. Hatfield Marine Science Center (HMSC) public education opportunities include interpretive programs offered along the Estuary Nature Trail. The purpose of this study was to determine the effectiveness of three informal education programs, interpretive signs, a self-guided trail brochure, and guided naturalist walks, in imparting information on the...
Resource Type:: Masters Thesis

The relationship of non-recovered rodent caches to the natural regeneration of ponderosa pine

Creator:: Saigo, Barbara Woodworth
Abstract:: Studies were conducted within a 12-mile radius of Camp Sherman, Oregon, in the Deschutes National Forest during the spring and summer of 1965 and the spring of 1966, with one follow-up visit in the summer of 1967. The feeding and foraging activities of Eutamias amoenus and Citellus lateralis were observed,...
Resource Type:: Masters Thesis
Full Text:: off the seed wing and stuffed the seed into their cheek pouches. This entire process of collecting :a

The effects of biomechanical and ecological factors on population and community structure of wave-exposed, intertidal macroalgae

Creator:: Blanchette, Carol A.
Abstract:: I examined the biomechanical factors that influence the sizes of intertidal macroalgae by studying a population of Fucus gardneri at Fogarty Creek Point, OR. I constructed a mathematical model to predict optimal sizes and probabilities of survival for Fucus under conditions of high and low wave exposure. Predicted optimal sizes...
Resource Type:: Dissertation

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

Creator:: Voth, Elver Howard, 1923-
Resource Type:: Dissertation

ScholarsArchive@OSU

A study of the vocal behavior of the American robin

Morphological and endocrine correlates of dominance in male ring-necked pheasants (Phasianus colchicus)

An Osteo-archaeological Investigation of Pinniped Remains at Seal Rock, Oregon (35 LNC 14)

Population and conservation genetic structure of the Cascades frog, Rana cascadae throughout the species' range

Temperature stress, gene expression, and innate immunity at the onset of cnidarian-dinoflagellate symbiosis

Variation in female reproductive success in amphibians

Informal Education on an Estuary Nature Trail : A Study of Visitor Knowledge, Attitudes and Behavior

The relationship of non-recovered rodent caches to the natural regeneration of ponderosa pine

The effects of biomechanical and ecological factors on population and community structure of wave-exposed, intertidal macroalgae

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

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