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Boreal Toad Microbial Communities and Conservation Interventions.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Boreal Toad Microbial Communities and Conservation Interventions./
Author:	Korpita, Timothy.
Description:	1 online resource (170 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-11, Section: B.
Contained By:	Dissertations Abstracts International84-11B.
Subject:	Microbiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30421564click for full text (PQDT)
ISBN:	9798379528164

Boreal Toad Microbial Communities and Conservation Interventions.
Korpita, Timothy.

Boreal Toad Microbial Communities and Conservation Interventions. - 1 online resource (170 pages)

Source: Dissertations Abstracts International, Volume: 84-11, Section: B.

Thesis (Ph.D.)--University of Colorado at Boulder, 2023.

Includes bibliographical references

There are microbial communities associated with nearly every habitat on the planet, including in and on nearly every larger organism. These microbial communities often perform functions critical to the health of their host. A notable example is host-associated microbial communities playing a role in defending their hosts from pathogenic microorganisms in multiple plant and animal systems. Resident microbial communities' role in the defense of amphibian hosts against pathogens is particularly well documented. This is because a pathogen that skin microbial communities interact with, Batrachochytrium dendrobatidis (Bd), is responsible for the decline of hundreds of amphibians globally, and is a sizable contributor to the worldwide amphibian biodiversity crisis. The work presented in this dissertation lies at the intersection of the microbiology of these host-associated communities and conservation actions taking place to prevent further decline of the hosts due to Bd. Specifically, I look at the microbial communities of the declining boreal toad (Anaxyrus boreas boreas). In my first data chapter, I document the impact of captivity on boreal toad associated microbial communities and how those communities return to a wild-type state after reintroduction to natural settings. The next two chapters detail field trials of a probiotic skin treatment designed to alter the toad skin microbiome in order to provide protection from Bd infection. In those experiments, we found that both the timing of the treatment relative to toad development and the mode of treatment application were critical determinants of probiotic success. The final chapter is concerned with the biogeography of larval A. boreas skin bacterial communities, where in a large dataset spanning seven states/provinces, we found evidence for both a distance-decay relationship in the overall microbial communities and the dominance of the skin communities at many sites by members of the family Comamonadaceae. Overall, this work provides insights into the factors influencing microbial community assembly in amphibian hosts, and documents how those communities might be manipulated to improve host health.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379528164Subjects--Topical Terms:

536250
Microbiology.
Subjects--Index Terms:

AmphibianIndex Terms--Genre/Form:

542853
Electronic books.

Boreal Toad Microbial Communities and Conservation Interventions.
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520 $a There are microbial communities associated with nearly every habitat on the planet, including in and on nearly every larger organism. These microbial communities often perform functions critical to the health of their host. A notable example is host-associated microbial communities playing a role in defending their hosts from pathogenic microorganisms in multiple plant and animal systems. Resident microbial communities' role in the defense of amphibian hosts against pathogens is particularly well documented. This is because a pathogen that skin microbial communities interact with, Batrachochytrium dendrobatidis (Bd), is responsible for the decline of hundreds of amphibians globally, and is a sizable contributor to the worldwide amphibian biodiversity crisis. The work presented in this dissertation lies at the intersection of the microbiology of these host-associated communities and conservation actions taking place to prevent further decline of the hosts due to Bd. Specifically, I look at the microbial communities of the declining boreal toad (Anaxyrus boreas boreas). In my first data chapter, I document the impact of captivity on boreal toad associated microbial communities and how those communities return to a wild-type state after reintroduction to natural settings. The next two chapters detail field trials of a probiotic skin treatment designed to alter the toad skin microbiome in order to provide protection from Bd infection. In those experiments, we found that both the timing of the treatment relative to toad development and the mode of treatment application were critical determinants of probiotic success. The final chapter is concerned with the biogeography of larval A. boreas skin bacterial communities, where in a large dataset spanning seven states/provinces, we found evidence for both a distance-decay relationship in the overall microbial communities and the dominance of the skin communities at many sites by members of the family Comamonadaceae. Overall, this work provides insights into the factors influencing microbial community assembly in amphibian hosts, and documents how those communities might be manipulated to improve host health.
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