Radioactive contamination and climate warming affect physiological performance of Chornobyl barn swallows.

Global warming and degradation of natural habitats are the two main factors causing ecophysiological stress on individuals and risk for biodiversity. Hyperthermia is a common response to stress in homeothermic animals, in particular to heat, pathogens and environmental contamination. Resilience of b...

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Main Authors: Zbyszek Boratyński, Timothy A Mousseau, Anders Pape Møller
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0329769
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author Zbyszek Boratyński
Timothy A Mousseau
Anders Pape Møller
author_facet Zbyszek Boratyński
Timothy A Mousseau
Anders Pape Møller
author_sort Zbyszek Boratyński
collection DOAJ
description Global warming and degradation of natural habitats are the two main factors causing ecophysiological stress on individuals and risk for biodiversity. Hyperthermia is a common response to stress in homeothermic animals, in particular to heat, pathogens and environmental contamination. Resilience of biological systems to global warming may be deteriorated in polluted habitats. Here we investigated how body temperature of a wild bird, the barn swallow (Hirundo rustica), responded to global warming while simultaneously exposed to radioactive contamination from the Chernobyl accident. Our results showed that both high air temperatures (t = 15.55, df = 335, p < 0.0001) and elevated environmental radioactive contamination (t = 5.18, df = 8.09, p = 0.0008) increased internal body temperature of individuals. The additive effect suggests that birds might suffer hyperthermia in locally contaminated habitat (1.47% body temperature increase) while simultaneously exposed to globally rising temperatures (1.95% body temperature increase), potentially reducing the fitness of individual and the maintenance of breeding colonies. The cumulative and interactive negative effects of multiple stressors, such as those emerging from increasing habitat degradation and climate change, will likely contribute to biodiversity losses globally.
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spelling doaj-art-fb704c62f80b46dab46ab56fcb319fd62025-08-23T05:32:08ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01208e032976910.1371/journal.pone.0329769Radioactive contamination and climate warming affect physiological performance of Chornobyl barn swallows.Zbyszek BoratyńskiTimothy A MousseauAnders Pape MøllerGlobal warming and degradation of natural habitats are the two main factors causing ecophysiological stress on individuals and risk for biodiversity. Hyperthermia is a common response to stress in homeothermic animals, in particular to heat, pathogens and environmental contamination. Resilience of biological systems to global warming may be deteriorated in polluted habitats. Here we investigated how body temperature of a wild bird, the barn swallow (Hirundo rustica), responded to global warming while simultaneously exposed to radioactive contamination from the Chernobyl accident. Our results showed that both high air temperatures (t = 15.55, df = 335, p < 0.0001) and elevated environmental radioactive contamination (t = 5.18, df = 8.09, p = 0.0008) increased internal body temperature of individuals. The additive effect suggests that birds might suffer hyperthermia in locally contaminated habitat (1.47% body temperature increase) while simultaneously exposed to globally rising temperatures (1.95% body temperature increase), potentially reducing the fitness of individual and the maintenance of breeding colonies. The cumulative and interactive negative effects of multiple stressors, such as those emerging from increasing habitat degradation and climate change, will likely contribute to biodiversity losses globally.https://doi.org/10.1371/journal.pone.0329769
spellingShingle Zbyszek Boratyński
Timothy A Mousseau
Anders Pape Møller
Radioactive contamination and climate warming affect physiological performance of Chornobyl barn swallows.
PLoS ONE
title Radioactive contamination and climate warming affect physiological performance of Chornobyl barn swallows.
title_full Radioactive contamination and climate warming affect physiological performance of Chornobyl barn swallows.
title_fullStr Radioactive contamination and climate warming affect physiological performance of Chornobyl barn swallows.
title_full_unstemmed Radioactive contamination and climate warming affect physiological performance of Chornobyl barn swallows.
title_short Radioactive contamination and climate warming affect physiological performance of Chornobyl barn swallows.
title_sort radioactive contamination and climate warming affect physiological performance of chornobyl barn swallows
url https://doi.org/10.1371/journal.pone.0329769
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AT anderspapemøller radioactivecontaminationandclimatewarmingaffectphysiologicalperformanceofchornobylbarnswallows