Intra‐Annual Variability in Responses of a Canopy Forming Kelp to Cumulative Low Tide Heat Stress: Implications for Populations at the Trailing Range Edge
Anthropogenic climate change is driving the redistribution of species at a global scale. For marine species, populations at trailing edges often live very close to their upper thermal limits and, as such, poleward range contractions are one of the most pervasive effects of ongoing and predicted warm...
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crwiley:10.1111/jpy.12927 2024-04-21T08:08:28+00:00 Intra‐Annual Variability in Responses of a Canopy Forming Kelp to Cumulative Low Tide Heat Stress: Implications for Populations at the Trailing Range Edge Hereward, Hannah F. R. King, Nathan G. Smale, Dan A. Natural Environment Research Council 2019 http://dx.doi.org/10.1111/jpy.12927 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjpy.12927 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.12927 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpy.12927 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 56, issue 1, page 146-158 ISSN 0022-3646 1529-8817 Plant Science Aquatic Science journal-article 2019 crwiley https://doi.org/10.1111/jpy.12927 2024-03-26T09:16:57Z Anthropogenic climate change is driving the redistribution of species at a global scale. For marine species, populations at trailing edges often live very close to their upper thermal limits and, as such, poleward range contractions are one of the most pervasive effects of ongoing and predicted warming. However, the mechanics of processes driving such contractions are poorly understood. Here, we examined the response of the habitat forming kelp, Laminaria digitata, to realistic terrestrial heatwave simulations akin to those experienced by intertidal populations persisting at the trailing range edge in the northeast Atlantic ( SW England). We conducted experiments in both spring and autumn to determine temporal variability in the effects of heatwaves. In spring, heatwave scenarios caused minimal stress to L. digitata but in autumn all scenarios tested resulted in tissue being nonviable by the end of each assay. The effects of heatwave scenarios were only apparent after consecutive exposures, indicating erosion of resilience over time. Monthly field surveys corroborated experimental evidence as the prevalence of bleaching (an indication of physiological stress and tissue damage) in natural populations was greatest in autumn and early winter. Overall, our data showed that L. digitata populations in SW England persist close to their upper physiological limits for emersion stress in autumn. As the intensity of extreme warming events is likely to increase with anthropogenic climate change, thermal conditions experienced during periods of emersion will soon exceed physiological thresholds and will likely induce widespread mortality and consequent changes at the population level. Article in Journal/Newspaper Northeast Atlantic Wiley Online Library Journal of Phycology 56 1 146 158 |
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Wiley Online Library |
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language |
English |
topic |
Plant Science Aquatic Science |
spellingShingle |
Plant Science Aquatic Science Hereward, Hannah F. R. King, Nathan G. Smale, Dan A. Intra‐Annual Variability in Responses of a Canopy Forming Kelp to Cumulative Low Tide Heat Stress: Implications for Populations at the Trailing Range Edge |
topic_facet |
Plant Science Aquatic Science |
description |
Anthropogenic climate change is driving the redistribution of species at a global scale. For marine species, populations at trailing edges often live very close to their upper thermal limits and, as such, poleward range contractions are one of the most pervasive effects of ongoing and predicted warming. However, the mechanics of processes driving such contractions are poorly understood. Here, we examined the response of the habitat forming kelp, Laminaria digitata, to realistic terrestrial heatwave simulations akin to those experienced by intertidal populations persisting at the trailing range edge in the northeast Atlantic ( SW England). We conducted experiments in both spring and autumn to determine temporal variability in the effects of heatwaves. In spring, heatwave scenarios caused minimal stress to L. digitata but in autumn all scenarios tested resulted in tissue being nonviable by the end of each assay. The effects of heatwave scenarios were only apparent after consecutive exposures, indicating erosion of resilience over time. Monthly field surveys corroborated experimental evidence as the prevalence of bleaching (an indication of physiological stress and tissue damage) in natural populations was greatest in autumn and early winter. Overall, our data showed that L. digitata populations in SW England persist close to their upper physiological limits for emersion stress in autumn. As the intensity of extreme warming events is likely to increase with anthropogenic climate change, thermal conditions experienced during periods of emersion will soon exceed physiological thresholds and will likely induce widespread mortality and consequent changes at the population level. |
author2 |
Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Hereward, Hannah F. R. King, Nathan G. Smale, Dan A. |
author_facet |
Hereward, Hannah F. R. King, Nathan G. Smale, Dan A. |
author_sort |
Hereward, Hannah F. R. |
title |
Intra‐Annual Variability in Responses of a Canopy Forming Kelp to Cumulative Low Tide Heat Stress: Implications for Populations at the Trailing Range Edge |
title_short |
Intra‐Annual Variability in Responses of a Canopy Forming Kelp to Cumulative Low Tide Heat Stress: Implications for Populations at the Trailing Range Edge |
title_full |
Intra‐Annual Variability in Responses of a Canopy Forming Kelp to Cumulative Low Tide Heat Stress: Implications for Populations at the Trailing Range Edge |
title_fullStr |
Intra‐Annual Variability in Responses of a Canopy Forming Kelp to Cumulative Low Tide Heat Stress: Implications for Populations at the Trailing Range Edge |
title_full_unstemmed |
Intra‐Annual Variability in Responses of a Canopy Forming Kelp to Cumulative Low Tide Heat Stress: Implications for Populations at the Trailing Range Edge |
title_sort |
intra‐annual variability in responses of a canopy forming kelp to cumulative low tide heat stress: implications for populations at the trailing range edge |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/jpy.12927 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjpy.12927 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.12927 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpy.12927 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Journal of Phycology volume 56, issue 1, page 146-158 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jpy.12927 |
container_title |
Journal of Phycology |
container_volume |
56 |
container_issue |
1 |
container_start_page |
146 |
op_container_end_page |
158 |
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1796948809610166272 |