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Chytrid fungus dynamics and infections associated with movement distances in a red-listed amphibian

Kärvemo, Simon and Wikstrom, G. and Ahlbäck Widenfalk, Lina and Hoglund, J. and Laurila, A. (2020). Chytrid fungus dynamics and infections associated with movement distances in a red-listed amphibian. Journal of Zoology. 311 , 164-174
[Journal article]

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Abstract

Amphibians are among the most threatened vertebrate taxa due to anthropogenic habitat change and emerging pathogens. The fungus Batrachochytrium dendrobatidis (Bd) may cause trade-offs between the immune responses and other important functions, such as mobility. The pool frog (Pelophylax lessonae) is red-listed in Sweden, and an earlier study conducted in our study area did not detect the fungus. In this study, 67 Swedish pool frogs were tested for Bd. Of these, 28 adults were provided with external radio transmitters and tracked during the summer and autumn to compare movement among infected and non-infected individuals. Additionally, we tested some individuals for Bd twice during the summer to study intra-seasonal variation in individual infections. Our results suggest that Bd has recently invaded these pool frog populations. During autumn, movement distances of infected pool frogs were shorter compared to uninfected individuals, and summer movements within ponds were reduced by increasing Bd load. We also found that the frogs can clear (or reduce) Bd infection during their active season. The results from this study increase understanding of the implications of Bd infections in an anuran fringe population, as well as in amphibian metapopulations, and can further guide amphibian conservation planning and management.

Authors/Creators:Kärvemo, Simon and Wikstrom, G. and Ahlbäck Widenfalk, Lina and Hoglund, J. and Laurila, A.
Title:Chytrid fungus dynamics and infections associated with movement distances in a red-listed amphibian
Year of publishing :2020
Volume:311
Page range:164-174
Number of Pages:11
Publisher:John Wiley & Sons Ltd, Zoological Society of London
ISSN:0952-8369
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Batrachochytrium dendrobatidis, Chytrid fungus, movements, Pelophylax lessonae, pool frog, radio tracking
URN:NBN:urn:nbn:se:slu:epsilon-p-104717
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-104717
Additional ID:
Type of IDID
DOI10.1111/jzo.12773
Web of Science (WoS)000514457500001
ID Code:17368
Faculty:S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:01 Sep 2020 12:37
Metadata Last Modified:01 Sep 2020 12:37

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