Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods
The Arctic is impacted by some of the fastest temperature changes observed on Earth, but the impact on the terrestrial arthropod fauna is unclear. Acute physiological thermal limits of terrestrial ectotherms from high latitudes often exceed the local air temperatures, suggesting that they may be abl...
Published in: | Functional Ecology |
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Online Access: | https://pure.au.dk/portal/en/publications/b9990599-2f86-431a-81bc-160f950ebcaa https://doi.org/10.1111/1365-2435.14573 http://www.scopus.com/inward/record.url?scp=85193611266&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/b9990599-2f86-431a-81bc-160f950ebcaa 2024-06-23T07:48:28+00:00 Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods Sørensen, Jesper Givskov Noer, Natasja Krog Kristensen, Torsten Nygaard Bahrndorff, Simon 2024 https://pure.au.dk/portal/en/publications/b9990599-2f86-431a-81bc-160f950ebcaa https://doi.org/10.1111/1365-2435.14573 http://www.scopus.com/inward/record.url?scp=85193611266&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/b9990599-2f86-431a-81bc-160f950ebcaa info:eu-repo/semantics/openAccess Sørensen , J G , Noer , N K , Kristensen , T N & Bahrndorff , S 2024 , ' Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods ' , Functional Ecology . https://doi.org/10.1111/1365-2435.14573 acclimation Arctic arthropods climate change insects polar tolerance upper thermal limits article 2024 ftuniaarhuspubl https://doi.org/10.1111/1365-2435.14573 2024-06-04T14:45:19Z The Arctic is impacted by some of the fastest temperature changes observed on Earth, but the impact on the terrestrial arthropod fauna is unclear. Acute physiological thermal limits of terrestrial ectotherms from high latitudes often exceed the local air temperatures, suggesting that they may be able to cope with increasing temperatures. However, knowledge on how Arctic terrestrial arthropods cope with elevated temperatures for longer periods is lacking. Here we investigate how acclimation temperature and exposure time affect the acute physiological heat tolerance of five terrestrial arthropod species (Neomolgus littoralis, Megaphorura arctica, Nysius groenlandicus, Psammotettix lividellus and Nabis flavomarginatus) immediately after collection in Arctic and sub-Arctic habitats. We show that although acute heat tolerances are relatively high, even exposure to moderate (temperature span assessed ca. 3–29°C) acclimation temperatures for a 24 h period have strong negative effects on heat tolerance for four of the five species. Similarly, exposure time negatively affected heat tolerance, but depending on species and temperature. Together our results suggest that exposure to even moderately elevated temperatures for periods of 24 h or even shorter can lead to lower acute heat tolerance for cold adapted terrestrial arthropod species from sub-Arctic and Arctic regions. Consequently, climate change leading to extended periods of mildly elevated temperatures may have strong negative effects on these species. We argue that this aspect is currently overlooked when assessing the ability of arthropods from Arctic and sub-Artic regions to cope with climate changes as such predictions are typically based on acute heat tolerance estimates and with the assumption of beneficial acclimation responses. Read the free Plain Language Summary for this article on the Journal blog. Article in Journal/Newspaper Arctic Arctic Climate change Aarhus University: Research Arctic Functional Ecology |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
acclimation Arctic arthropods climate change insects polar tolerance upper thermal limits |
spellingShingle |
acclimation Arctic arthropods climate change insects polar tolerance upper thermal limits Sørensen, Jesper Givskov Noer, Natasja Krog Kristensen, Torsten Nygaard Bahrndorff, Simon Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods |
topic_facet |
acclimation Arctic arthropods climate change insects polar tolerance upper thermal limits |
description |
The Arctic is impacted by some of the fastest temperature changes observed on Earth, but the impact on the terrestrial arthropod fauna is unclear. Acute physiological thermal limits of terrestrial ectotherms from high latitudes often exceed the local air temperatures, suggesting that they may be able to cope with increasing temperatures. However, knowledge on how Arctic terrestrial arthropods cope with elevated temperatures for longer periods is lacking. Here we investigate how acclimation temperature and exposure time affect the acute physiological heat tolerance of five terrestrial arthropod species (Neomolgus littoralis, Megaphorura arctica, Nysius groenlandicus, Psammotettix lividellus and Nabis flavomarginatus) immediately after collection in Arctic and sub-Arctic habitats. We show that although acute heat tolerances are relatively high, even exposure to moderate (temperature span assessed ca. 3–29°C) acclimation temperatures for a 24 h period have strong negative effects on heat tolerance for four of the five species. Similarly, exposure time negatively affected heat tolerance, but depending on species and temperature. Together our results suggest that exposure to even moderately elevated temperatures for periods of 24 h or even shorter can lead to lower acute heat tolerance for cold adapted terrestrial arthropod species from sub-Arctic and Arctic regions. Consequently, climate change leading to extended periods of mildly elevated temperatures may have strong negative effects on these species. We argue that this aspect is currently overlooked when assessing the ability of arthropods from Arctic and sub-Artic regions to cope with climate changes as such predictions are typically based on acute heat tolerance estimates and with the assumption of beneficial acclimation responses. Read the free Plain Language Summary for this article on the Journal blog. |
format |
Article in Journal/Newspaper |
author |
Sørensen, Jesper Givskov Noer, Natasja Krog Kristensen, Torsten Nygaard Bahrndorff, Simon |
author_facet |
Sørensen, Jesper Givskov Noer, Natasja Krog Kristensen, Torsten Nygaard Bahrndorff, Simon |
author_sort |
Sørensen, Jesper Givskov |
title |
Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods |
title_short |
Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods |
title_full |
Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods |
title_fullStr |
Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods |
title_full_unstemmed |
Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods |
title_sort |
acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods |
publishDate |
2024 |
url |
https://pure.au.dk/portal/en/publications/b9990599-2f86-431a-81bc-160f950ebcaa https://doi.org/10.1111/1365-2435.14573 http://www.scopus.com/inward/record.url?scp=85193611266&partnerID=8YFLogxK |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Climate change |
genre_facet |
Arctic Arctic Climate change |
op_source |
Sørensen , J G , Noer , N K , Kristensen , T N & Bahrndorff , S 2024 , ' Acclimation to moderate temperatures can have strong negative impacts on heat tolerance of arctic arthropods ' , Functional Ecology . https://doi.org/10.1111/1365-2435.14573 |
op_relation |
https://pure.au.dk/portal/en/publications/b9990599-2f86-431a-81bc-160f950ebcaa |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/1365-2435.14573 |
container_title |
Functional Ecology |
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1802638873819348992 |