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

Bower, Deborah S., Jennings, Charlotte K., Webb, Rebecca J., Amepou, Yolarnie, Schwarzkopf, Lin, Berger, Lee, Alford, Ross A., Georges, Arthur, McKnight, Donald T., Carr, Leah, Nason, Dillian, and Clulow, Simon (2020) Disease surveillance of the amphibian chytrid fungus Batrachochytrium dendrobatidis in Papua New Guinea. Conservation Science and Practice, 2 (9). e256.

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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.

Item ID: 67560
Item Type: Article (Research - C1)
ISSN: 2578-4854
Keywords: biosecurity, disease, fungi, invasive, island, New Guinea, pathogen, policy
Copyright Information: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. © 2020 The Authors. Conservation Science and Practice published by Wiley Periodicals LLC. on behalf of Society for Conservation Biology
Date Deposited: 04 Feb 2022 03:23
FoR Codes: 41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410401 Conservation and biodiversity @ 100%
SEO Codes: 18 ENVIRONMENTAL MANAGEMENT > 1806 Terrestrial systems and management > 180606 Terrestrial biodiversity @ 100%
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