Amphibian chytrid fungus in Africa - realigning hypotheses and the research paradigm
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Accepted version
Accepted version
Author(s)
Type
Journal Article
Abstract
The amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd), responsible for numerous amphibian declines and extinctions, was previously thought to originate from the African continent. This was based on infected museum specimens from early 20th century South Africa, Cameroon and Uganda. Further research on archived specimens from other continents eventually revealed early 20th century records also in Brazil and Japan. Recent robust analysis of genomic diversity and phylogeny of Bd has shown origin from Asia to be more plausible. This raises the issue that the threat of Bd for African amphibians as a novel pathogen has been underestimated. There are now cases where dramatic amphibian declines in disparate mountains on the continent could be attributed to Bd, and this necessitates an urgent realigning of hypotheses and the research agenda for amphibian conservation on the continent. Notably, hotspots of amphibian host naivety include West Africa where this pathogen has so far not been detected. We discuss research gaps that amphibian conservationists might focus on, notably more genomic sequencing of the BdCAPE (the less virulent) lineage to determine its date of emergence, and assessing the susceptibility of different amphibian species to infection, disease and decline to better prioritize conservation actions.
Date Issued
2020-06-01
Date Acceptance
2019-08-22
Citation
Animal Conservation, 2020, 23 (3), pp.239-244
ISSN
1367-9430
Publisher
Wiley
Start Page
239
End Page
244
Journal / Book Title
Animal Conservation
Volume
23
Issue
3
Copyright Statement
© 2019 The Zoological Society of London. This is the peer reviewed version of the following article, which has been published in final form at https://zslpublications.onlinelibrary.wiley.com/doi/full/10.1111/acv.12538. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Sponsor
Natural Environment Research Council (NERC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000487401900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
NE/S000844/1
Subjects
Science & Technology
Life Sciences & Biomedicine
Biodiversity Conservation
Ecology
Biodiversity & Conservation
Environmental Sciences & Ecology
emerging infectious disease
conservation
chytridiomycosis
Batrachochytrium
Anura
caecilian
Africa
amphibian declines
BATRACHOCHYTRIUM-DENDROBATIDIS INFECTION
CHYTRIDIOMYCOSIS
ORIGIN
FROGS
PREVALENCE
DISEASE
Publication Status
Published
Date Publish Online
2019-09-23