Intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment
The size structure of plankton communities is an important determinant of their functions in marine ecosystems. However, few studies have quantified how organism size varies within species across biogeographical scales. Here, we investigate how planktonic foraminifera, a ubiquitous zooplankton group...
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ftpubmed:oai:pubmedcentral.nih.gov:7593196 2023-05-15T18:00:23+02:00 Intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment Rillo, Marina C. Miller, C. Giles Kucera, Michal Ezard, Thomas H. G. 2020-09-28 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7593196/ http://www.ncbi.nlm.nih.gov/pubmed/33144985 https://doi.org/10.1002/ece3.6792 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7593196/ http://www.ncbi.nlm.nih.gov/pubmed/33144985 http://dx.doi.org/10.1002/ece3.6792 © 2020 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Ecol Evol Original Research Text 2020 ftpubmed https://doi.org/10.1002/ece3.6792 2020-11-08T01:40:22Z The size structure of plankton communities is an important determinant of their functions in marine ecosystems. However, few studies have quantified how organism size varies within species across biogeographical scales. Here, we investigate how planktonic foraminifera, a ubiquitous zooplankton group, vary in size across the tropical and subtropical oceans of the world. Using a recently digitized museum collection, we measured shell area of 3,799 individuals of nine extant species in 53 seafloor sediments. We first analyzed potential size biases in the collection. Then, for each site, we obtained corresponding local values of mean annual sea‐surface temperature (SST), net primary productivity (NPP), and relative abundance of each species. Given former studies, we expected species to reach largest shell sizes under optimal environmental conditions. In contrast, we observe that species differ in how much their size variation is explained by SST, NPP, and/or relative abundance. While some species have predictable size variation given these variables (Trilobatus sacculifer, Globigerinoides conglobatus, Globigerinella siphonifera, Pulleniatina obliquiloculata, Globorotalia truncatulinoides), other species show no relationships between size and the studied covariates (Globigerinoides ruber, Neogloboquadrina dutertrei, Globorotalia menardii, Globoconella inflata). By incorporating intraspecific variation and sampling broader geographical ranges compared to previous studies, we conclude that shell size variation in planktonic foraminifera species cannot be consistently predicted by the environment. Our results caution against the general use of size as a proxy for planktonic foraminifera environmental optima. More generally, our work highlights the utility of natural history collections and the importance of studying intraspecific variation when interpreting macroecological patterns. Text Planktonic foraminifera PubMed Central (PMC) Ecology and Evolution 10 20 11579 11590 |
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Original Research Rillo, Marina C. Miller, C. Giles Kucera, Michal Ezard, Thomas H. G. Intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment |
topic_facet |
Original Research |
description |
The size structure of plankton communities is an important determinant of their functions in marine ecosystems. However, few studies have quantified how organism size varies within species across biogeographical scales. Here, we investigate how planktonic foraminifera, a ubiquitous zooplankton group, vary in size across the tropical and subtropical oceans of the world. Using a recently digitized museum collection, we measured shell area of 3,799 individuals of nine extant species in 53 seafloor sediments. We first analyzed potential size biases in the collection. Then, for each site, we obtained corresponding local values of mean annual sea‐surface temperature (SST), net primary productivity (NPP), and relative abundance of each species. Given former studies, we expected species to reach largest shell sizes under optimal environmental conditions. In contrast, we observe that species differ in how much their size variation is explained by SST, NPP, and/or relative abundance. While some species have predictable size variation given these variables (Trilobatus sacculifer, Globigerinoides conglobatus, Globigerinella siphonifera, Pulleniatina obliquiloculata, Globorotalia truncatulinoides), other species show no relationships between size and the studied covariates (Globigerinoides ruber, Neogloboquadrina dutertrei, Globorotalia menardii, Globoconella inflata). By incorporating intraspecific variation and sampling broader geographical ranges compared to previous studies, we conclude that shell size variation in planktonic foraminifera species cannot be consistently predicted by the environment. Our results caution against the general use of size as a proxy for planktonic foraminifera environmental optima. More generally, our work highlights the utility of natural history collections and the importance of studying intraspecific variation when interpreting macroecological patterns. |
format |
Text |
author |
Rillo, Marina C. Miller, C. Giles Kucera, Michal Ezard, Thomas H. G. |
author_facet |
Rillo, Marina C. Miller, C. Giles Kucera, Michal Ezard, Thomas H. G. |
author_sort |
Rillo, Marina C. |
title |
Intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment |
title_short |
Intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment |
title_full |
Intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment |
title_fullStr |
Intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment |
title_full_unstemmed |
Intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment |
title_sort |
intraspecific size variation in planktonic foraminifera cannot be consistently predicted by the environment |
publisher |
John Wiley and Sons Inc. |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7593196/ http://www.ncbi.nlm.nih.gov/pubmed/33144985 https://doi.org/10.1002/ece3.6792 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Ecol Evol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7593196/ http://www.ncbi.nlm.nih.gov/pubmed/33144985 http://dx.doi.org/10.1002/ece3.6792 |
op_rights |
© 2020 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
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CC-BY |
op_doi |
https://doi.org/10.1002/ece3.6792 |
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Ecology and Evolution |
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10 |
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20 |
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11579 |
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11590 |
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