Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New Guinea

Abstract Emerging infectious diseases threaten the persistence of biodiversity globally. The amphibian chytrid fungus, Batrachochytrium dendrobatidis, is one of the most widespread and damaging pathogens to biodiversity. New Guinea hosts 6% of the world's frogs and is the largest landmass where...

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Main Authors: Deborah S. Bower, Charlotte K. Jennings, Rebecca J. Webb, Yolarnie Amepou, Lin Schwarzkopf, Lee Berger, Ross A. Alford, Arthur Georges, Donald T. McKnight, Leah Carr, Dillian Nason, Simon Clulow
Format: Article
Language:English
Published: Wiley 2020-09-01
Series:Conservation Science and Practice
Subjects:
Online Access:https://doi.org/10.1111/csp2.256
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author Deborah S. Bower
Charlotte K. Jennings
Rebecca J. Webb
Yolarnie Amepou
Lin Schwarzkopf
Lee Berger
Ross A. Alford
Arthur Georges
Donald T. McKnight
Leah Carr
Dillian Nason
Simon Clulow
author_facet Deborah S. Bower
Charlotte K. Jennings
Rebecca J. Webb
Yolarnie Amepou
Lin Schwarzkopf
Lee Berger
Ross A. Alford
Arthur Georges
Donald T. McKnight
Leah Carr
Dillian Nason
Simon Clulow
author_sort Deborah S. Bower
collection DOAJ
description Abstract Emerging infectious diseases threaten the persistence of biodiversity globally. The amphibian chytrid fungus, Batrachochytrium dendrobatidis, is one of the most widespread and damaging pathogens to biodiversity. New Guinea hosts 6% of the world's frogs and is the largest landmass where B. dendrobatidis remains undetected despite being largely climatically suitable for its persistence. We surveyed for B. dendrobatidis in Papua New Guinea, by swabbing live frogs in the Gulf Province and Eastern Highlands Province and by examining museum specimens from a range of sites and elevations. Here, we show that over a large geographical range, all 442 samples were negative for B. dendrobatidis. The spread of B. dendrobatidis to Papua New Guinea may have been thus far prevented by the remoteness of New Guinea and the hotter climate in its lowlands, which surrounds a more climatically suitable zone for B. dendrobatidis in the highlands. Alternatively, B. dendrobatidis may be present in isolated patches or at low levels and remain undetected, to date. Papua New Guinea remains at risk and would benefit from a national disease surveillance program for chytrid fungi and pre‐emptive actions, designed to reduce the risk of pathogen transmission. Measures should include improved biosecurity protocols for trade and travel and continued disease surveillance in areas of probable entry and spread.
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spelling doaj.art-3b1c65205789403cb150c923eddd881e2022-12-21T23:02:07ZengWileyConservation Science and Practice2578-48542020-09-0129n/an/a10.1111/csp2.256Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New GuineaDeborah S. Bower0Charlotte K. Jennings1Rebecca J. Webb2Yolarnie Amepou3Lin Schwarzkopf4Lee Berger5Ross A. Alford6Arthur Georges7Donald T. McKnight8Leah Carr9Dillian Nason10Simon Clulow11College of Science & Engineering James Cook University Townsville Queensland AustraliaMuseum of Vertebrate Zoology University of California Berkeley California USACollege of Public Health Medical and Veterinary Sciences, James Cook UniversityInstitute for Applied Ecology University of Canberra Canberra Australian Capital Territory AustraliaCollege of Science & Engineering James Cook University Townsville Queensland AustraliaMelbourne Veterinary School University of Melbourne Werribee Victoria AustraliaCollege of Science & Engineering James Cook University Townsville Queensland AustraliaInstitute for Applied Ecology University of Canberra Canberra Australian Capital Territory AustraliaCollege of Science & Engineering James Cook University Townsville Queensland AustraliaCollege of Science & Engineering James Cook University Townsville Queensland AustraliaBiological Science Department University of Goroka Goroka Papua New GuineaSchool of Environmental and Life Science University of Newcastle Callaghan New South Wales AustraliaAbstract Emerging infectious diseases threaten the persistence of biodiversity globally. The amphibian chytrid fungus, Batrachochytrium dendrobatidis, is one of the most widespread and damaging pathogens to biodiversity. New Guinea hosts 6% of the world's frogs and is the largest landmass where B. dendrobatidis remains undetected despite being largely climatically suitable for its persistence. We surveyed for B. dendrobatidis in Papua New Guinea, by swabbing live frogs in the Gulf Province and Eastern Highlands Province and by examining museum specimens from a range of sites and elevations. Here, we show that over a large geographical range, all 442 samples were negative for B. dendrobatidis. The spread of B. dendrobatidis to Papua New Guinea may have been thus far prevented by the remoteness of New Guinea and the hotter climate in its lowlands, which surrounds a more climatically suitable zone for B. dendrobatidis in the highlands. Alternatively, B. dendrobatidis may be present in isolated patches or at low levels and remain undetected, to date. Papua New Guinea remains at risk and would benefit from a national disease surveillance program for chytrid fungi and pre‐emptive actions, designed to reduce the risk of pathogen transmission. Measures should include improved biosecurity protocols for trade and travel and continued disease surveillance in areas of probable entry and spread.https://doi.org/10.1111/csp2.256biosecuritydiseasefungiinvasiveislandNew Guinea
spellingShingle Deborah S. Bower
Charlotte K. Jennings
Rebecca J. Webb
Yolarnie Amepou
Lin Schwarzkopf
Lee Berger
Ross A. Alford
Arthur Georges
Donald T. McKnight
Leah Carr
Dillian Nason
Simon Clulow
Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New Guinea
Conservation Science and Practice
biosecurity
disease
fungi
invasive
island
New Guinea
title Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New Guinea
title_full Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New Guinea
title_fullStr Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New Guinea
title_full_unstemmed Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New Guinea
title_short Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New Guinea
title_sort disease surveillance of the amphibian chytrid fungus batrachochytrium dendrobatidis in papua new guinea
topic biosecurity
disease
fungi
invasive
island
New Guinea
url https://doi.org/10.1111/csp2.256
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