Acclimation capacity and rate change through life in the zooplankton Daphnia.
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| Title: | Acclimation capacity and rate change through life in the zooplankton Daphnia. |
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| Authors: | Burton, Tim1 tim.burton@ntnu.no, Lakka, Hanna-Kaisa1,2, Einum, Sigurd1 |
| Source: | Proceedings of the Royal Society B: Biological Sciences. 4/8/2020, Vol. 287 Issue 1924, p1-8. 8p. |
| Subjects: | Acclimatization, Global environmental change, Daphnia, Daphnia magna |
| Abstract: | When a change in the environment occurs, organisms can maintain an optimal phenotypic state via plastic, reversible changes to their phenotypes. These adjustments, when occurring within a generation, are described as the process of acclimation. While acclimation has been studied for more than half a century, global environmental change has stimulated renewed interest in quantifying variation in the rate and capacity with which this process occurs, particularly among ectothermic organisms. Yet, despite the likely ecological importance of acclimation capacity and rate, how these traits change throughout life among members of the same species is largely unstudied. Here we investigate these relationships by measuring the acute heat tolerance of the clonally reproducing zooplankter Daphnia magna of different size/age and acclimation status. The heat tolerance of individuals completely acclimated to relatively warm (28°C) or cool (17°C) temperatures diverged during development, indicating that older, larger individuals had a greater capacity to increase heat tolerance. However, when cool acclimated individuals were briefly exposed to the warm temperature (i.e. were 'heat-hardened'), it was younger, smaller animals with less capacity to acclimate that were able to do so more rapidly because they obtained or came closer to obtaining complete acclimation of heat tolerance. Our results illustrate that within a species, individuals can differ substantially in how rapidly and by how much they can respond to environmental change. We urge greater investigation of the intraspecific relationship between acclimation and development along with further consideration of the factors that might contribute to these enigmatic patterns of phenotypic variation. [ABSTRACT FROM AUTHOR] |
| Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 143097604 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Acclimation capacity and rate change through life in the zooplankton Daphnia. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Burton%2C+Tim%22">Burton, Tim</searchLink><relatesTo>1</relatesTo><i> tim.burton@ntnu.no</i><br /><searchLink fieldCode="AR" term="%22Lakka%2C+Hanna-Kaisa%22">Lakka, Hanna-Kaisa</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Einum%2C+Sigurd%22">Einum, Sigurd</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Proceedings+of+the+Royal+Society+B%3A+Biological+Sciences%22">Proceedings of the Royal Society B: Biological Sciences</searchLink>. 4/8/2020, Vol. 287 Issue 1924, p1-8. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Acclimatization%22">Acclimatization</searchLink><br /><searchLink fieldCode="DE" term="%22Global+environmental+change%22">Global environmental change</searchLink><br /><searchLink fieldCode="DE" term="%22Daphnia%22">Daphnia</searchLink><br /><searchLink fieldCode="DE" term="%22Daphnia+magna%22">Daphnia magna</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: When a change in the environment occurs, organisms can maintain an optimal phenotypic state via plastic, reversible changes to their phenotypes. These adjustments, when occurring within a generation, are described as the process of acclimation. While acclimation has been studied for more than half a century, global environmental change has stimulated renewed interest in quantifying variation in the rate and capacity with which this process occurs, particularly among ectothermic organisms. Yet, despite the likely ecological importance of acclimation capacity and rate, how these traits change throughout life among members of the same species is largely unstudied. Here we investigate these relationships by measuring the acute heat tolerance of the clonally reproducing zooplankter Daphnia magna of different size/age and acclimation status. The heat tolerance of individuals completely acclimated to relatively warm (28°C) or cool (17°C) temperatures diverged during development, indicating that older, larger individuals had a greater capacity to increase heat tolerance. However, when cool acclimated individuals were briefly exposed to the warm temperature (i.e. were 'heat-hardened'), it was younger, smaller animals with less capacity to acclimate that were able to do so more rapidly because they obtained or came closer to obtaining complete acclimation of heat tolerance. Our results illustrate that within a species, individuals can differ substantially in how rapidly and by how much they can respond to environmental change. We urge greater investigation of the intraspecific relationship between acclimation and development along with further consideration of the factors that might contribute to these enigmatic patterns of phenotypic variation. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1098/rspb.2020.0189 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 1 Subjects: – SubjectFull: Acclimatization Type: general – SubjectFull: Global environmental change Type: general – SubjectFull: Daphnia Type: general – SubjectFull: Daphnia magna Type: general Titles: – TitleFull: Acclimation capacity and rate change through life in the zooplankton Daphnia. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Burton, Tim – PersonEntity: Name: NameFull: Lakka, Hanna-Kaisa – PersonEntity: Name: NameFull: Einum, Sigurd IsPartOfRelationships: – BibEntity: Dates: – D: 08 M: 04 Text: 4/8/2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 09628452 Numbering: – Type: volume Value: 287 – Type: issue Value: 1924 Titles: – TitleFull: Proceedings of the Royal Society B: Biological Sciences Type: main |
| ResultId | 1 |
