The influence of predator community composition on photoprotective traits of copepods
Abstract Trait expression of natural populations often jointly depends on prevailing abiotic environmental conditions and predation risk. Copepods, for example, can vary their expression of compounds that confer protection against ultraviolet radiation (UVR), such as astaxanthin and mycosporine‐like...
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Online Access: | http://dx.doi.org/10.1002/ece3.8862 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.8862 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.8862 |
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crwiley:10.1002/ece3.8862 2024-09-30T14:28:26+00:00 The influence of predator community composition on photoprotective traits of copepods Oester, Rebecca Greenway, Ryan Moosmann, Marvin Sommaruga, Ruben Tartarotti, Barbara Brodersen, Jakob Matthews, Blake Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 2022 http://dx.doi.org/10.1002/ece3.8862 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.8862 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.8862 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 12, issue 4 ISSN 2045-7758 2045-7758 journal-article 2022 crwiley https://doi.org/10.1002/ece3.8862 2024-09-17T04:46:23Z Abstract Trait expression of natural populations often jointly depends on prevailing abiotic environmental conditions and predation risk. Copepods, for example, can vary their expression of compounds that confer protection against ultraviolet radiation (UVR), such as astaxanthin and mycosporine‐like amino acids (MAAs), in relation to predation risk. Despite ample evidence that copepods accumulate less astaxanthin in the presence of predators, little is known about how the community composition of planktivorous fish can affect the overall expression of photoprotective compounds. Here, we investigate how the (co‐)occurrence of Arctic charr ( Salvelinus alpinus ) and threespine stickleback ( Gasterosteus aculeatus ) affects the photoprotective phenotype of the copepod Leptodiaptomus minutus in lake ecosystems in southern Greenland. We found that average astaxanthin and MAA contents were lowest in lakes with stickleback, but we found no evidence that these photoprotective compounds were affected by the presence of charr. Furthermore, variance in astaxanthin among individual copepods was greatest in the presence of stickleback and the astaxanthin content of copepods was negatively correlated with increasing stickleback density. Overall, we show that the presence and density of stickleback jointly affect the content of photoprotective compounds by copepods, illustrating how the community composition of predators in an ecosystem can determine the expression of prey traits that are also influenced by abiotic stressors. Article in Journal/Newspaper Arctic charr Arctic Greenland Salvelinus alpinus Copepods Wiley Online Library Arctic Greenland Ecology and Evolution 12 4 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Trait expression of natural populations often jointly depends on prevailing abiotic environmental conditions and predation risk. Copepods, for example, can vary their expression of compounds that confer protection against ultraviolet radiation (UVR), such as astaxanthin and mycosporine‐like amino acids (MAAs), in relation to predation risk. Despite ample evidence that copepods accumulate less astaxanthin in the presence of predators, little is known about how the community composition of planktivorous fish can affect the overall expression of photoprotective compounds. Here, we investigate how the (co‐)occurrence of Arctic charr ( Salvelinus alpinus ) and threespine stickleback ( Gasterosteus aculeatus ) affects the photoprotective phenotype of the copepod Leptodiaptomus minutus in lake ecosystems in southern Greenland. We found that average astaxanthin and MAA contents were lowest in lakes with stickleback, but we found no evidence that these photoprotective compounds were affected by the presence of charr. Furthermore, variance in astaxanthin among individual copepods was greatest in the presence of stickleback and the astaxanthin content of copepods was negatively correlated with increasing stickleback density. Overall, we show that the presence and density of stickleback jointly affect the content of photoprotective compounds by copepods, illustrating how the community composition of predators in an ecosystem can determine the expression of prey traits that are also influenced by abiotic stressors. |
author2 |
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung |
format |
Article in Journal/Newspaper |
author |
Oester, Rebecca Greenway, Ryan Moosmann, Marvin Sommaruga, Ruben Tartarotti, Barbara Brodersen, Jakob Matthews, Blake |
spellingShingle |
Oester, Rebecca Greenway, Ryan Moosmann, Marvin Sommaruga, Ruben Tartarotti, Barbara Brodersen, Jakob Matthews, Blake The influence of predator community composition on photoprotective traits of copepods |
author_facet |
Oester, Rebecca Greenway, Ryan Moosmann, Marvin Sommaruga, Ruben Tartarotti, Barbara Brodersen, Jakob Matthews, Blake |
author_sort |
Oester, Rebecca |
title |
The influence of predator community composition on photoprotective traits of copepods |
title_short |
The influence of predator community composition on photoprotective traits of copepods |
title_full |
The influence of predator community composition on photoprotective traits of copepods |
title_fullStr |
The influence of predator community composition on photoprotective traits of copepods |
title_full_unstemmed |
The influence of predator community composition on photoprotective traits of copepods |
title_sort |
influence of predator community composition on photoprotective traits of copepods |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/ece3.8862 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.8862 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.8862 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic charr Arctic Greenland Salvelinus alpinus Copepods |
genre_facet |
Arctic charr Arctic Greenland Salvelinus alpinus Copepods |
op_source |
Ecology and Evolution volume 12, issue 4 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.8862 |
container_title |
Ecology and Evolution |
container_volume |
12 |
container_issue |
4 |
_version_ |
1811634121153183744 |