Dynamics of Chytrid Fungus (Batrachochytrium Dendrobatidis) Infection in Amphibians in the Rincon Mountains and Tucson, Arizona

Persistent Link:
http://hdl.handle.net/10150/228467
Title:
Dynamics of Chytrid Fungus (Batrachochytrium Dendrobatidis) Infection in Amphibians in the Rincon Mountains and Tucson, Arizona
Author:
Ratzlaff, Kristina M.
Issue Date:
2012
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The chytrid fungus Batrachochytrium dendrobatidis (Bd) has been implicated in amphibian declines around the world, including the southwestern United States. I studied patterns of Bd infection in Hyla arenicolor, Rana catesbeiana, and R. yavapaiensis in the Rincon Mountains and Tucson Basin in Arizona. Bd prevalence and infection intensity were location dependent in all species and R. yavapaiensis may be a reservoir of Bd for H. arenicolor, where they co-occurred. Treatment of a backyard population of R. yavapaiensis with itraconazole did not reduce winter frog mortality due to Bd. The lethal Bd infection threshold of this population was between 59,847 and 4,237,330 zoospores. Zoospore loads from swabs of freshly dead frogs did not differ significantly from those taken from those same frogs following freezing and thawing. Thus, important information regarding infection intensity and probable cause of death can be gathered from frogs collected by others and frozen until convenient to process.
Type:
text; Electronic Thesis
Keywords:
Batrachochytrium; chytrid; yavapaiensis; Natural Resources; amphibian; arenicolor
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Natural Resources
Degree Grantor:
University of Arizona
Advisor:
Schwalbe, Cecil R.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleDynamics of Chytrid Fungus (Batrachochytrium Dendrobatidis) Infection in Amphibians in the Rincon Mountains and Tucson, Arizonaen_US
dc.creatorRatzlaff, Kristina M.en_US
dc.contributor.authorRatzlaff, Kristina M.en_US
dc.date.issued2012-
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe chytrid fungus Batrachochytrium dendrobatidis (Bd) has been implicated in amphibian declines around the world, including the southwestern United States. I studied patterns of Bd infection in Hyla arenicolor, Rana catesbeiana, and R. yavapaiensis in the Rincon Mountains and Tucson Basin in Arizona. Bd prevalence and infection intensity were location dependent in all species and R. yavapaiensis may be a reservoir of Bd for H. arenicolor, where they co-occurred. Treatment of a backyard population of R. yavapaiensis with itraconazole did not reduce winter frog mortality due to Bd. The lethal Bd infection threshold of this population was between 59,847 and 4,237,330 zoospores. Zoospore loads from swabs of freshly dead frogs did not differ significantly from those taken from those same frogs following freezing and thawing. Thus, important information regarding infection intensity and probable cause of death can be gathered from frogs collected by others and frozen until convenient to process.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.subjectBatrachochytriumen_US
dc.subjectchytriden_US
dc.subjectyavapaiensisen_US
dc.subjectNatural Resourcesen_US
dc.subjectamphibianen_US
dc.subjectarenicoloren_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineNatural Resourcesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorSchwalbe, Cecil R.en_US
dc.contributor.committeememberRosen, Philip C.en_US
dc.contributor.committeememberSwann, Don E.en_US
dc.contributor.committeememberMatter, William J.en_US
dc.contributor.committeememberSchwalbe, Cecil R.en_US
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