Index Catalog // ScholarsArchive@OSU

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:: approved: Andrew R. Blaustein I examined two amphibian communities to assess factors that may

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:: Responses to an Emerging Fungal Pathogen and Why it Matters Abstract approved: Andrew R. Blaustein

Complexity in host-pathogen dynamics : dispersal uncertainties, metapopulation persistence and the role of a changing climate

Creator:: Xie, Yang
Abstract:: Emerging infectious diseases impact both human and wildlife populations. Infectious agents, in particular the aquatic fungus Batrachochytrium dendrobatidis (chytrid), have an influential role in driving global amphibian population declines. The emergence of the chytrid fungus has aspects of both geographic spread as well as climate shifts altering environmental conditions and...
Resource Type:: Dissertation
Full Text:: Abstract approved: _____________________________________________________________________ Andrew R

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:: : ________________________________________________________ Andrew R. Blaustein The earth is undergoing a “biodiversity crisis” characterized by

The role of herbivores and productivity on community structure of rocky shores of the Galapagos Islands, Ecuador

Creator:: Vinueza, Luis R.
Abstract:: Ecosystems are facing increasing threats from human related activities, such as overfishing, pollution, habitat destruction, species invasions, and diseases, among others. While oceanic islands provide natural laboratories to understand ecological and evolutionary process, they are also particularly vulnerable to these impacts, given their usual isolation from the mainland and the...
Resource Type:: Dissertation
Full Text:: THE DISSERTATION OF Luis R. Vinueza for the degree of Doctor of Philosophy in Zoology

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

Creator:: Fuller, Claire A.
Resource Type:: Dissertation
Full Text:: approved: Andrew R. Blaustein Hosts and their parasites can affect each other's population dynamics

Renal function in urodele amphibians

Creator:: Stiffler, Daniel Francis
Resource Type:: Dissertation
Full Text:: : Redacted for Privacy R. H. Alvarado A primary feature of osmoregulation in fresh water vertebrates is the

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:: . Abstract approved: Andrew R. Blaustein Contemporary environmental change encompasses massive

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:: pesticides were toxic to A. macrodaclylum in the presence of UV-B. Chiorpyrifos caused mortality in R

Environmental influences on host-pathogen dynamics of the amphibian chytrid fungus

Creator:: Buck, Julia C.
Abstract:: The causes of the global biodiversity crisis are varied and complex. Anthropogenic threats may act in isolation, or interact additively or synergistically with each other or with natural stressors to affect sensitive taxa. The recent emergence of many infectious diseases in wildlife has brought attention to the role of disease...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Andrew R. Blaustein The causes of the global biodiversity crisis are varied and complex

ScholarsArchive@OSU

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

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

Complexity in host-pathogen dynamics : dispersal uncertainties, metapopulation persistence and the role of a changing climate

The effects of multiple pathogens on amphibians in the Pacific Northwest

The role of herbivores and productivity on community structure of rocky shores of the Galapagos Islands, Ecuador

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

Renal function in urodele amphibians

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

Multiple stressors and amphibian population declines

Environmental influences on host-pathogen dynamics of the amphibian chytrid fungus

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