Index Catalog // ScholarsArchive@OSU

Host species composition influences infection severity among amphibians in the absence of spillover transmission

Creator:: Han, Barbara A., Kerby, Jacob L., Searle, Catherine L., Storfer, Andrew, and Blaustein, Andrew R.
Abstract:: Wildlife epidemiological outcomes can depend strongly on the composition of an ecological community, particularly when multiple host species are affected by the same pathogen. However, the relationship between host species richness and disease risk can vary with community context and with the degree of spillover transmission that occurs among co-occurring...
Resource Type:: Article

The Effects of Nitrate and a Pathogenic Fungus, Batrachochytrium dendrobatidis, on Amphibians

Creator:: Negru, Delia
Abstract:: The current rate of global biodiversity loss and extinctions is unparalleled and a major concern. Freshwater organisms are facing particularly rapid rates of biodiversity loss. Amphibians, which require an aquatic environment for part of their life cycle, are one of the most vulnerable vertebrate groups. Amphibians are experiencing population declines,...
Resource Type:: Masters Thesis
Full Text:: Andrew R. Blaustein The current rate of global biodiversity loss and extinctions is

The Role of Emerging Pathogens in Amphibian Population Declines : Experimental Evidence

Creator:: Hambalek, Natalie M.
Abstract:: Rapid rates of biodiversity loss have supported the notion that Earth is experiencing a sixth major extinction event. The causes of worldwide biodiversity loss are multifaceted and context dependent. One of the most prominent groups experiencing population declines and extinctions are amphibians. Several pathogens and their associated diseases are especially...
Resource Type:: Masters Thesis
Full Text:: : Experimental Evidence Abstract approved: _____________________________________________________ Andrew R

The Behavioral Responses of Western Toad (Anaxyrus boreas) Larvae to Simultaneous Stressors

Creator:: Reynolds, Emily R.
Abstract:: Animals can be naturally exposed simultaneously to multiple stressors. These include habitat changes, contaminants, diseases, invasive species, parasitism, and predation. Exposure to various combinations of biotic and abiotic stressors may induce behavioral changes that affect the way an individual interacts within its environment.Like other groups of organisms, amphibians are exposed...
Resource Type:: Masters Thesis
Full Text:: ) Larvae to Simultaneous Stressors Abstract Approved: Andrew R. Blaustein Animals can be

The Effects of Host and Pathogen Variation on Infection Dynamics in the Amphibian-Chytrid System

Creator:: Dang, Trang D.
Abstract:: This dissertation uses manipulative experiments to explore amphibian-Bd infection dynamics. Although there has been almost two decades research since the discovery of Bd, many questions still remain regarding what conditions mediate chytridiomycosis virulence. My research shows how certain host and pathogen factors can influence disease virulence. Identifying how host and...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Andrew R. Blaustein This dissertation uses manipulative experiments to explore

Effects of Diversity on Emerging Infectious Diseases of Amphibians

Creator:: Snyder, Paul W.
Abstract:: Species declines and extinctions have been recorded across taxa as evidence of an ongoing global biodiversity crisis. Amphibians are at the forefront of these declines with nearly one third of amphibian species estimated to be at risk of extinction. While many factors contribute to population declines and extinctions, the role...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Andrew R. Blaustein Species declines and extinctions have been recorded across taxa

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

Development and Infectious Disease in Hosts with Complex Life Cycles

Creator:: Searle, Catherine L., Xie, Gisselle Yang, and Blaustein, Andrew R.
Abstract:: Metamorphosis is often characterized by profound changes in morphology and physiology that can affect the dynamics of species interactions. For example, the interaction between a pathogen and its host may differ depending on the life stage of the host or pathogen. One pathogen that infects hosts with complex life cycles...
Resource Type:: Article
Full Text:: with Complex Life Cycles Catherine L. Searle1,2*, Gisselle Yang Xie2, Andrew R. Blaustein2,3 1

Heterogeneous Occupancy and Density Estimates of the Pathogenic Fungus Batrachochytrium dendrobatidis in Waters of North America

Creator:: Chestnut, Tara, Anderson, Chauncey, Popa, Radu, Blaustein, Andrew R., Voytek, Mary, Olson, Deanna H., and Kirshtein, Julie
Abstract:: Biodiversity losses are occurring worldwide due to a combination of stressors. For example, by one estimate, 40% of amphibian species are vulnerable to extinction, and disease is one threat to amphibian populations. The emerging infectious disease chytridiomycosis, caused by the aquatic fungus Batrachochytrium dendrobatidis (Bd), is a contributor to amphibian...
Resource Type:: Article
Full Text:: Chestnut1,2*, Chauncey Anderson2, Radu Popa3, Andrew R. Blaustein4, Mary Voytek5, Deanna H. Olson6, Julie

Larval exposure to predator cues alters immune function and response to a fungal pathogen in post-metamorphic wood frogs

Creator:: Groner, Maya L., Buck, Julia C., Gervasi, Stephanie, Blaustein, Andrew R., Reinert, Laura K., Rollins-Smith, Louise A., Bier, Mark E., Hempel, John, and Relyea, Rick A.
Abstract:: For the past several decades, amphibian populations have been decreasing around the globe at an unprecedented rate. Batrachochytrium dendrobatidis (Bd), the fungal pathogen that causes chytridiomycosis in amphibians, is contributing to amphibian declines. Natural and anthropogenic environmental factors are hypothesized to contribute to these declines by reducing the immunocompetence of...
Resource Type:: Article
Full Text:: JULIA C. BUCK,2 STEPHANIE GERVASI,2 ANDREW R. BLAUSTEIN,2 LAURA K. REINERT,3 LOUISE A. ROLLINS-SMITH,3

ScholarsArchive@OSU

Host species composition influences infection severity among amphibians in the absence of spillover transmission

The Effects of Nitrate and a Pathogenic Fungus, Batrachochytrium dendrobatidis, on Amphibians

The Role of Emerging Pathogens in Amphibian Population Declines : Experimental Evidence

The Behavioral Responses of Western Toad (Anaxyrus boreas) Larvae to Simultaneous Stressors

The Effects of Host and Pathogen Variation on Infection Dynamics in the Amphibian-Chytrid System

Effects of Diversity on Emerging Infectious Diseases of Amphibians

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

Development and Infectious Disease in Hosts with Complex Life Cycles

Heterogeneous Occupancy and Density Estimates of the Pathogenic Fungus Batrachochytrium dendrobatidis in Waters of North America

Larval exposure to predator cues alters immune function and response to a fungal pathogen in post-metamorphic wood frogs

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