Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders
High-latitude ectotherms contend with large daily and seasonal temperature variation. Summer-collected wolf spiders (Araneae; Lycosidae) from sub-Arctic and Arctic habitats have been previously documented as having low temperature tolerance insufficient for surviving year-round in their habitat. We...
Published in: | Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2021
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Online Access: | https://pure.au.dk/portal/da/publications/thermal-acclimation-has-limited-effect-on-the-thermal-tolerances-of-summercollected-arctic-and-subarctic-wolf-spiders(1e6b9285-3265-40ac-9ed8-bf501ba5f52f).html https://doi.org/10.1016/j.cbpa.2021.110974 http://www.scopus.com/inward/record.url?scp=85106300497&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/1e6b9285-3265-40ac-9ed8-bf501ba5f52f 2023-12-17T10:22:59+01:00 Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders Anthony, Susan E. Buddle, Christopher M. Høye, Toke T. Hein, Nils Sinclair, Brent J. 2021-07 https://pure.au.dk/portal/da/publications/thermal-acclimation-has-limited-effect-on-the-thermal-tolerances-of-summercollected-arctic-and-subarctic-wolf-spiders(1e6b9285-3265-40ac-9ed8-bf501ba5f52f).html https://doi.org/10.1016/j.cbpa.2021.110974 http://www.scopus.com/inward/record.url?scp=85106300497&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/da/publications/thermal-acclimation-has-limited-effect-on-the-thermal-tolerances-of-summercollected-arctic-and-subarctic-wolf-spiders(1e6b9285-3265-40ac-9ed8-bf501ba5f52f).html info:eu-repo/semantics/restrictedAccess Anthony , S E , Buddle , C M , Høye , T T , Hein , N & Sinclair , B J 2021 , ' Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders ' , Comparative Biochemistry and Physiology -Part A : Molecular and Integrative Physiology , vol. 257 , 110974 . https://doi.org/10.1016/j.cbpa.2021.110974 Cold tolerance Freezing Heat tolerance Phenotypic plasticity Thermal performance article 2021 ftuniaarhuspubl https://doi.org/10.1016/j.cbpa.2021.110974 2023-11-23T00:01:23Z High-latitude ectotherms contend with large daily and seasonal temperature variation. Summer-collected wolf spiders (Araneae; Lycosidae) from sub-Arctic and Arctic habitats have been previously documented as having low temperature tolerance insufficient for surviving year-round in their habitat. We tested two competing hypotheses: that they would have broad thermal breadth, or that they would use plasticity to extend the range of their thermal performance. We collected Pardosa moesta and P. lapponica from the Yukon Territory, Canada, P. furcifera, P. groenlandica, and P. hyperborea from southern Greenland, and P. hyperborea from sub-Arctic Norway, and acclimated them to warm (12 or 20 °C) or cool (4 °C) conditions under constant light for one week. We measured critical thermal minimum (CT min ) or supercooling point (SCP) as a measure of lower thermal limit, and critical thermal maximum (CT max ) as a measure of upper thermal limit. We found relatively little impact of acclimation on thermal limits, and some counterintuitive responses; for example, warm acclimation decreased the SCP and/or cool acclimation increased the CT max in several cases. Together, this meant that acclimation did not appear to modify the thermal breadth, which supports our first hypothesis, but allows us to reject the hypothesis that spiders use plasticity to fine-tune their thermal physiology, at least in the summer. We note that we still cannot explain how these spiders withstand the very cold winters, and speculate that there are acclimatisation cues or processes that we were unable to capture in our study. Article in Journal/Newspaper Arctic Arctic Greenland Yukon Aarhus University: Research Arctic Canada Greenland Norway Yukon Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 257 110974 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Cold tolerance Freezing Heat tolerance Phenotypic plasticity Thermal performance |
spellingShingle |
Cold tolerance Freezing Heat tolerance Phenotypic plasticity Thermal performance Anthony, Susan E. Buddle, Christopher M. Høye, Toke T. Hein, Nils Sinclair, Brent J. Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders |
topic_facet |
Cold tolerance Freezing Heat tolerance Phenotypic plasticity Thermal performance |
description |
High-latitude ectotherms contend with large daily and seasonal temperature variation. Summer-collected wolf spiders (Araneae; Lycosidae) from sub-Arctic and Arctic habitats have been previously documented as having low temperature tolerance insufficient for surviving year-round in their habitat. We tested two competing hypotheses: that they would have broad thermal breadth, or that they would use plasticity to extend the range of their thermal performance. We collected Pardosa moesta and P. lapponica from the Yukon Territory, Canada, P. furcifera, P. groenlandica, and P. hyperborea from southern Greenland, and P. hyperborea from sub-Arctic Norway, and acclimated them to warm (12 or 20 °C) or cool (4 °C) conditions under constant light for one week. We measured critical thermal minimum (CT min ) or supercooling point (SCP) as a measure of lower thermal limit, and critical thermal maximum (CT max ) as a measure of upper thermal limit. We found relatively little impact of acclimation on thermal limits, and some counterintuitive responses; for example, warm acclimation decreased the SCP and/or cool acclimation increased the CT max in several cases. Together, this meant that acclimation did not appear to modify the thermal breadth, which supports our first hypothesis, but allows us to reject the hypothesis that spiders use plasticity to fine-tune their thermal physiology, at least in the summer. We note that we still cannot explain how these spiders withstand the very cold winters, and speculate that there are acclimatisation cues or processes that we were unable to capture in our study. |
format |
Article in Journal/Newspaper |
author |
Anthony, Susan E. Buddle, Christopher M. Høye, Toke T. Hein, Nils Sinclair, Brent J. |
author_facet |
Anthony, Susan E. Buddle, Christopher M. Høye, Toke T. Hein, Nils Sinclair, Brent J. |
author_sort |
Anthony, Susan E. |
title |
Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders |
title_short |
Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders |
title_full |
Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders |
title_fullStr |
Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders |
title_full_unstemmed |
Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders |
title_sort |
thermal acclimation has limited effect on the thermal tolerances of summer-collected arctic and sub-arctic wolf spiders |
publishDate |
2021 |
url |
https://pure.au.dk/portal/da/publications/thermal-acclimation-has-limited-effect-on-the-thermal-tolerances-of-summercollected-arctic-and-subarctic-wolf-spiders(1e6b9285-3265-40ac-9ed8-bf501ba5f52f).html https://doi.org/10.1016/j.cbpa.2021.110974 http://www.scopus.com/inward/record.url?scp=85106300497&partnerID=8YFLogxK |
geographic |
Arctic Canada Greenland Norway Yukon |
geographic_facet |
Arctic Canada Greenland Norway Yukon |
genre |
Arctic Arctic Greenland Yukon |
genre_facet |
Arctic Arctic Greenland Yukon |
op_source |
Anthony , S E , Buddle , C M , Høye , T T , Hein , N & Sinclair , B J 2021 , ' Thermal acclimation has limited effect on the thermal tolerances of summer-collected Arctic and sub-Arctic wolf spiders ' , Comparative Biochemistry and Physiology -Part A : Molecular and Integrative Physiology , vol. 257 , 110974 . https://doi.org/10.1016/j.cbpa.2021.110974 |
op_relation |
https://pure.au.dk/portal/da/publications/thermal-acclimation-has-limited-effect-on-the-thermal-tolerances-of-summercollected-arctic-and-subarctic-wolf-spiders(1e6b9285-3265-40ac-9ed8-bf501ba5f52f).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.cbpa.2021.110974 |
container_title |
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
container_volume |
257 |
container_start_page |
110974 |
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1785555161961201664 |