Index Catalog // ScholarsArchive@OSU

Experimental analysis of competition between desert rodents in Oregon

Creator:: Schoffelen, Emile
Resource Type:: Masters Thesis
Full Text:: Rodents in Oregon AN ABSTRACT OF THE THESIS OF Emile Schoffelen in Zoology for the degree of Master

Indirect effects of ultraviolet-B radiation on larval amphibians as mediated by food quality and trophic interactions

Creator:: Scheessele, Erin A.
Abstract:: Ultraviolet-B radiation (UVB) is an abiotic stressor in both terrestrial and aquatic systems. The stratospheric ozone layer, depleted due to anthropogenic activities and the cause of elevated UVB at earth's surface over the last four decades, is predicted to recover by 2065. However, UVB levels in aquatic systems may continue...
Resource Type:: Dissertation
Full Text:: submitted to Oregon State University in partial fulfillment of the requirements for

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:: fertilizer on two species of amphibians at both low and high elevation sites in Oregon. InHyla Redacted for

Ecological aspects of kin discriminating behavior with implications of functional value

Creator:: Hokit, D. Grant
Abstract:: To assess the context dependence of kin discriminating behavior, I examined kin-biased aggregation behavior in tadpoles of R. cascadae in different ecological conditions. I manipulated food distribution, predator presence, thermal heterogeneity, and relatedness in a multifactorial mesocosm experiment. All four factors interacted to influence tadpole dispersion. My results suggest that...
Resource Type:: Dissertation
Full Text:: km west of Bend, Oregon, U.S.A.; 3 km north of Todd Lake in the Deschutes National Forest. Two

The effects of pathogens, UV-B radiation, and introduced species on amphibians in the Pacific Northwest

Creator:: Kiesecker, Joseph Michael
Abstract:: I examined two amphibian communities to assess factors that may impact amphibian biodiversity. The results suggest that the potential factors which influence the maintenance of amphibian biodiversity are multi-faceted and thus, attempts to understand these factors must reflect these complexities. I investigated factors that influenced the susceptibility of western toad...
Resource Type:: Dissertation
Full Text:: species on amphibians in the Pacific Northwest AN ABSTRACT OF THE THESIS OF Joseph M. Kiesecker for

Host parasite relationships between deer mice (Peromyscus maniculatus) and their eimerian parasites (protozoa)

Creator:: Fuller, Claire A.
Resource Type:: Dissertation
Full Text:: animals were conducted in MacDonald Forest, Oregon State University's experimental forest (approx. 15

The effects of an emerging pathogen on amphibian host behaviors and interactions

Creator:: Han, Barbara A.
Abstract:: Contemporary environmental change encompasses massive biodiversity loss and increasing numbers of emerging diseases worldwide. As part of a global biodiversity crisis, amphibians are disappearing at unprecedented rates. Batrachochytrium dendrobatidis is an emerging infectious pathogen prominently associated with many declines. Chapter 1 reviews the past decade of research on this system...
Resource Type:: Dissertation
Full Text:: Paoletti, thank you for bringing a few needed moments of Oregon sunshine to the stressful final days of

All hosts are not created equal : variation in amphibian responses to an emerging fungal pathogen and why it matters

Creator:: Gervasi, Stephanie S.
Abstract:: Emerging infectious diseases are increasing globally and are a threat to human, wildlife, and ecosystem health. The emerging fungal pathogen, Batrachochytrium dendrobatidis (Bd), or amphibian chytrid fungus, is associated with worldwide amphibian population declines and extinctions. Bd has been found on every continent where amphibians exist and has been documented...
Resource Type:: Dissertation
Full Text:: 4.2 Infection load summary statistics for larval and metamorphic stages ................. 125 5.1

Cannibalism in larvae of the long-toed salamander, Ambystoma macrodactylum

Creator:: Wildy, Erica Lynn
Abstract:: Predator-prey interactions have historically been studied to explain patterns of organization observed in populations and communities. They have also been important in understanding the evolution of antipredator responses in prey and counterstrategies in predators. Despite the breadth of knowledge that exists for heterospecific interactions, relatively few studies have investigated the...
Resource Type:: Dissertation
Full Text:: Oregon State University in partial fulfillment of the requirements for the degree of Doctor of

Unpalatability as an antipredator defense in anuran larvae

Creator:: Peterson, Jeffrey A.
Abstract:: The tadpoles of several anuran species with groupforming larvae are relatively unpalatable to many of their potential predators. To more fully understand the role of palatability and its relationship to group formation as an antipredator defense in anuran amphibian larvae, I investigated the palatabilities of the larvae of three species...
Resource Type:: Masters Thesis
Full Text:: All of the A. gracile were captured from Fay Lake in Linn County which is not used for breeding by R

ScholarsArchive@OSU

Experimental analysis of competition between desert rodents in Oregon

Indirect effects of ultraviolet-B radiation on larval amphibians as mediated by food quality and trophic interactions

Multiple stressors and amphibian population declines

Ecological aspects of kin discriminating behavior with implications of functional value

The effects of pathogens, UV-B radiation, and introduced species on amphibians in the Pacific Northwest

Host parasite relationships between deer mice (Peromyscus maniculatus) and their eimerian parasites (protozoa)

The effects of an emerging pathogen on amphibian host behaviors and interactions

All hosts are not created equal : variation in amphibian responses to an emerging fungal pathogen and why it matters

Cannibalism in larvae of the long-toed salamander, Ambystoma macrodactylum

Unpalatability as an antipredator defense in anuran larvae

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search