Index Catalog // ScholarsArchive@OSU

Comparisons of chromomeric and puff patterns in the salivary gland and fat body chromosomes of Drosophila gibberosa third instar larvae and prepupae

Creator:: Mac Phail, Laurie Ann
Abstract:: Chromosome maps were made of Drosophila gibberosa salivary gland and fat body chromosomes, and the puffing patterns were compared in the two tissues for selected times in development. The times were early third instar (E), late third instar (0, at pupariation (0 hr), at two hours (2 hr), four hours...
Resource Type:: Dissertation
Full Text:: . Redacted for privacy Dr. Paul Roberts Chromosome maps were made of Drosophila gibberosa salivary gland

Genetic and environmental influences upon 3X aneuploid viability in Drosophila melanogaster (Meigen)

Creator:: Neeley, John Charles, 1938-
Resource Type:: Dissertation
Full Text:: (MEIGEN) Abstract approved: Redacted for Privacy Paul A. Roberts Progeny of C(1)RM females and regular

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
Full Text:: also like to thank my committee members, Deanna Olson, Paul Murtaugh, Jeff Arthur, and Bruce Coblentz

Marine herbivore-plant interactions : the feeding ecology of the sea slug Placida dendritica

Creator:: Trowbridge, Cynthia D.
Abstract:: The feeding ecology of a common temperate mesoherbivore, the oligophagous sea slug Placida dendritica (Gastropoda: Opisthobranchia: Ascoglossa), was examined from April 1985 to June 1989. Along the central coast of Oregon, Placida consumed three host species: the low intertidal green algae Codium setchellii, C. fragile, and Bryopsis corticulans. Individual slugs...
Resource Type:: Dissertation
Full Text:: ecology of the sea slug Placida dendritica AN ABSTRACT OF THE THESIS OF Cynthia D. Trowbridge for the

Multiple stressors and amphibian population declines

Creator:: Hatch, Audrey C.
Abstract:: In the past decade, declines in amphibian populations have captured scientific and popular interest. The causes of the declines are likely to be complex and involve interactions between several environmental stressors. Using multifactorial experiments, I investigated the combined effects of several anthropogenic stressors on developing amphibians in Oregon, USA. In...
Resource Type:: Dissertation
Full Text:: has been important in my development as a scientist. My committee members, Drs. Bruce Menge, Paul

A comparative study of prenatal behavior ontogeny in altricial and precocial murid rodents

Creator:: Robinson, Scott R., 1952-
Abstract:: Using techniques that permit the direct observation of fetuses in vivo, prenatal behavioral development was compared among four species in the rodent family Muridae: the Norway rat (Rattus norvegicus), Mongolian gerbil (Meriones unguiculatus), cotton rat (Sigmodon hispidus), and spiny mouse (Acomys cahirinus). Rattus and Meriones bear altricial offspring, as do...
Resource Type:: Dissertation
Full Text:: movements to be temporally clustered in bouts, (c) the emergence of synchronous movement, (d) the

The effects of multiple pathogens on amphibians in the Pacific Northwest

Creator:: Romansic, John M.
Abstract:: The earth is undergoing a “biodiversity crisis” characterized by loss of populations, species, genetic diversity, and ecosystem services. Part of this crisis consists of population declines, extinctions, and increased incidence of deformities in amphibians. It is unknown whether deformities contribute to these declines. Many cases of population declines in amphibians...
Resource Type:: Dissertation
Full Text:: thank my other committee members, Paul Jepson, Joey Spatafora, Bruce Menge, and Larry Curtis for the

The influence of biophysical feedbacks and species interactions on grass invasions and coastal dune morphology in the Pacific Northwest, USA

Creator:: Zarnetske, Phoebe Lehmann
Abstract:: Biological invasions provide a unique opportunity to study the mechanisms that regulate community composition and ecosystem function. Invasive species that are also ecosystem engineers can substantially alter physical features in an environment, and this can lead to cascading effects on the biological community. Aquatic-terrestrial interface ecosystems are excellent systems to...
Resource Type:: Dissertation
Full Text:: : Sally D. Hacker Eric W. Seabloom Biological invasions provide a unique opportunity to study

Osmotic and ionic regulation in the Dungeness crab, Cancer magister (Dana)

Creator:: Alspach, George Samuel, Jr.
Abstract:: Osmotic and ionic regulation was studied in the Dungeness crab, Cancer magister, after acute exposure to a range of five salinities from 25% to 125% sea water (100% = 32%). Blood, urine and muscle tissue were sampled at 24 and 48 hours after exposure. Analyses were made of blood and...
Resource Type:: Dissertation
Full Text:: byKrogh(1939), Prosser and Brown(1961), Lockwood (l96), Potts and Parry (1964), and Kinne (1964). In

Aspects of osmoregulation in an intertidal shore crab, Hemigrapsus nudus (Dana)

Creator:: Alspach, George Samuel, Jr.
Resource Type:: Masters Thesis
Full Text:: marine to fresh water. Extensive reviews of the literature have been compiled by Krogh (1939), Prosser

ScholarsArchive@OSU

Comparisons of chromomeric and puff patterns in the salivary gland and fat body chromosomes of Drosophila gibberosa third instar larvae and prepupae

Genetic and environmental influences upon 3X aneuploid viability in Drosophila melanogaster (Meigen)

Variation in female reproductive success in amphibians

Marine herbivore-plant interactions : the feeding ecology of the sea slug Placida dendritica

Multiple stressors and amphibian population declines

A comparative study of prenatal behavior ontogeny in altricial and precocial murid rodents

The effects of multiple pathogens on amphibians in the Pacific Northwest

The influence of biophysical feedbacks and species interactions on grass invasions and coastal dune morphology in the Pacific Northwest, USA

Osmotic and ionic regulation in the Dungeness crab, Cancer magister (Dana)

Aspects of osmoregulation in an intertidal shore crab, Hemigrapsus nudus (Dana)

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