Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions:evidence of selection for extreme cold tolerance
Tolerance to thermal extremes is critical for the geographic distributions of ectotherm species, many of which are probably going to be modified by future climatic changes. To predict species distributions it is important to understand the potential of species to adapt to changing thermal conditions...
Published in: | Journal of Comparative Physiology B |
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Language: | English |
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2022
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Online Access: | https://pure.au.dk/portal/en/publications/46eade14-f70a-47bd-be77-1cdcfcb0f4f6 https://doi.org/10.1007/s00360-022-01433-w http://www.scopus.com/inward/record.url?scp=85126750500&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/46eade14-f70a-47bd-be77-1cdcfcb0f4f6 2024-02-11T09:59:40+01:00 Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions:evidence of selection for extreme cold tolerance Holmstrup, Martin Sørensen, Jesper G. Dai, Wencai Krogh, Paul Henning Schmelz, Rüdiger M. Slotsbo, Stine 2022-07 https://pure.au.dk/portal/en/publications/46eade14-f70a-47bd-be77-1cdcfcb0f4f6 https://doi.org/10.1007/s00360-022-01433-w http://www.scopus.com/inward/record.url?scp=85126750500&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/46eade14-f70a-47bd-be77-1cdcfcb0f4f6 info:eu-repo/semantics/restrictedAccess Holmstrup , M , Sørensen , J G , Dai , W , Krogh , P H , Schmelz , R M & Slotsbo , S 2022 , ' Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions : evidence of selection for extreme cold tolerance ' , Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology , vol. 192 , no. 3-4 , pp. 435-445 . https://doi.org/10.1007/s00360-022-01433-w Adaptive capacity Genetic variation Geographical range Reproduction Thermal tolerance article 2022 ftuniaarhuspubl https://doi.org/10.1007/s00360-022-01433-w 2024-01-18T00:00:47Z Tolerance to thermal extremes is critical for the geographic distributions of ectotherm species, many of which are probably going to be modified by future climatic changes. To predict species distributions it is important to understand the potential of species to adapt to changing thermal conditions. Here, we tested whether the thermal tolerance traits of a common freeze-tolerant potworm were correlated with climatic conditions and if adaptation to extreme cold constrains the evolutionary potential for high temperature tolerance. Further, we tested if evolution of thermal tolerance traits is associated with costs in other fitness traits (body size and reproduction). Lastly, we tested if slopes of temperature-survival curves (i.e., the sensitivity distribution) are related to tolerance itself. Using 24 populations of the potworm, Enchytraeus albidus Henle (Enchytraeidae), collected from a wide range of climatic conditions, we established a common garden experiment in which we determined high and low temperature tolerance (using survival as endpoint), average reproductive output and adult body size. Heat tolerance was not related to environmental temperatures whereas lower lethal temperature was about 10 °C lower in Arctic populations than in populations from temperate regions. Reproduction was not related to environmental temperature, but was negatively correlated with cold tolerance. One explanation for the trade-off between cold tolerance and reproduction could be that the more cold-hardy populations need to channel energy to large glycogen reserves at the expense of less energy expenditure for reproduction. Adult body size was negatively related to environmental temperature. Finally, the slopes of temperature-survival curves were significantly correlated with critical temperature limits for heat and cold tolerance; i.e., slopes increased with thermal tolerance. Our results suggest that relatively heat-sensitive populations possess genetic variation, leaving room for improved heat tolerance through evolutionary ... Article in Journal/Newspaper Arctic Arctic Aarhus University: Research Arctic Journal of Comparative Physiology B |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Adaptive capacity Genetic variation Geographical range Reproduction Thermal tolerance |
spellingShingle |
Adaptive capacity Genetic variation Geographical range Reproduction Thermal tolerance Holmstrup, Martin Sørensen, Jesper G. Dai, Wencai Krogh, Paul Henning Schmelz, Rüdiger M. Slotsbo, Stine Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions:evidence of selection for extreme cold tolerance |
topic_facet |
Adaptive capacity Genetic variation Geographical range Reproduction Thermal tolerance |
description |
Tolerance to thermal extremes is critical for the geographic distributions of ectotherm species, many of which are probably going to be modified by future climatic changes. To predict species distributions it is important to understand the potential of species to adapt to changing thermal conditions. Here, we tested whether the thermal tolerance traits of a common freeze-tolerant potworm were correlated with climatic conditions and if adaptation to extreme cold constrains the evolutionary potential for high temperature tolerance. Further, we tested if evolution of thermal tolerance traits is associated with costs in other fitness traits (body size and reproduction). Lastly, we tested if slopes of temperature-survival curves (i.e., the sensitivity distribution) are related to tolerance itself. Using 24 populations of the potworm, Enchytraeus albidus Henle (Enchytraeidae), collected from a wide range of climatic conditions, we established a common garden experiment in which we determined high and low temperature tolerance (using survival as endpoint), average reproductive output and adult body size. Heat tolerance was not related to environmental temperatures whereas lower lethal temperature was about 10 °C lower in Arctic populations than in populations from temperate regions. Reproduction was not related to environmental temperature, but was negatively correlated with cold tolerance. One explanation for the trade-off between cold tolerance and reproduction could be that the more cold-hardy populations need to channel energy to large glycogen reserves at the expense of less energy expenditure for reproduction. Adult body size was negatively related to environmental temperature. Finally, the slopes of temperature-survival curves were significantly correlated with critical temperature limits for heat and cold tolerance; i.e., slopes increased with thermal tolerance. Our results suggest that relatively heat-sensitive populations possess genetic variation, leaving room for improved heat tolerance through evolutionary ... |
format |
Article in Journal/Newspaper |
author |
Holmstrup, Martin Sørensen, Jesper G. Dai, Wencai Krogh, Paul Henning Schmelz, Rüdiger M. Slotsbo, Stine |
author_facet |
Holmstrup, Martin Sørensen, Jesper G. Dai, Wencai Krogh, Paul Henning Schmelz, Rüdiger M. Slotsbo, Stine |
author_sort |
Holmstrup, Martin |
title |
Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions:evidence of selection for extreme cold tolerance |
title_short |
Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions:evidence of selection for extreme cold tolerance |
title_full |
Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions:evidence of selection for extreme cold tolerance |
title_fullStr |
Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions:evidence of selection for extreme cold tolerance |
title_full_unstemmed |
Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions:evidence of selection for extreme cold tolerance |
title_sort |
analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to arctic regions:evidence of selection for extreme cold tolerance |
publishDate |
2022 |
url |
https://pure.au.dk/portal/en/publications/46eade14-f70a-47bd-be77-1cdcfcb0f4f6 https://doi.org/10.1007/s00360-022-01433-w http://www.scopus.com/inward/record.url?scp=85126750500&partnerID=8YFLogxK |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_source |
Holmstrup , M , Sørensen , J G , Dai , W , Krogh , P H , Schmelz , R M & Slotsbo , S 2022 , ' Analysis of heat and cold tolerance of a freeze-tolerant soil invertebrate distributed from temperate to Arctic regions : evidence of selection for extreme cold tolerance ' , Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology , vol. 192 , no. 3-4 , pp. 435-445 . https://doi.org/10.1007/s00360-022-01433-w |
op_relation |
https://pure.au.dk/portal/en/publications/46eade14-f70a-47bd-be77-1cdcfcb0f4f6 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00360-022-01433-w |
container_title |
Journal of Comparative Physiology B |
_version_ |
1790595461473632256 |