Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations
Natural populations of free-living protists often exhibit high-levels of intraspecific diversity, yet this is puzzling as classic evolutionary theory predicts dominance by genotypes with high fitness, particularly in large populations where selection is efficient. Here, we test whether negative freq...
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ftdryad:oai:v1.datadryad.org:10255/dryad.88309 2023-05-15T17:32:52+02:00 Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations Minter, Ewan J. A. Watts, Phillip C. Lowe, Chris D. Brockhurst, Michael A. European North Atlantic 2015-05-21T14:48:13Z http://hdl.handle.net/10255/dryad.88309 https://doi.org/10.5061/dryad.nk52s unknown doi:10.5061/dryad.nk52s/1 doi:10.1098/rsbl.2015.0192 PMID:26063750 doi:10.5061/dryad.nk52s Minter EJA, Watts PC, Lowe CD, Brockhurst MA (2015) Negative frequency-dependent selection is intensified at higher population densities in protist populations. Biology Letters 11(6): 20150192. http://hdl.handle.net/10255/dryad.88309 Selection frequency-dependence density-dependence diversity plankton Article 2015 ftdryad https://doi.org/10.5061/dryad.nk52s https://doi.org/10.5061/dryad.nk52s/1 https://doi.org/10.1098/rsbl.2015.0192 2020-01-01T15:20:15Z Natural populations of free-living protists often exhibit high-levels of intraspecific diversity, yet this is puzzling as classic evolutionary theory predicts dominance by genotypes with high fitness, particularly in large populations where selection is efficient. Here, we test whether negative frequency-dependent selection (NFDS) plays a role in the maintenance of diversity in the marine flagellate Oxyrrhis marina using competition experiments between multiple pairs of strains. We observed strain-specific responses to frequency and density, but an overall signature of NFDS that was intensified at higher population densities. Because our strains were not selected a priori on the basis of particular traits expected to exhibit NFDS, these data represent a relatively unbiased estimate of the role for NFDS in maintaining diversity in protist populations. These findings could help to explain how bloom-forming plankton, which periodically achieve exceptionally high population densities, maintain substantial intraspecific diversity. Article in Journal/Newspaper North Atlantic Dryad Digital Repository (Duke University) |
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Open Polar |
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Dryad Digital Repository (Duke University) |
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ftdryad |
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topic |
Selection frequency-dependence density-dependence diversity plankton |
spellingShingle |
Selection frequency-dependence density-dependence diversity plankton Minter, Ewan J. A. Watts, Phillip C. Lowe, Chris D. Brockhurst, Michael A. Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations |
topic_facet |
Selection frequency-dependence density-dependence diversity plankton |
description |
Natural populations of free-living protists often exhibit high-levels of intraspecific diversity, yet this is puzzling as classic evolutionary theory predicts dominance by genotypes with high fitness, particularly in large populations where selection is efficient. Here, we test whether negative frequency-dependent selection (NFDS) plays a role in the maintenance of diversity in the marine flagellate Oxyrrhis marina using competition experiments between multiple pairs of strains. We observed strain-specific responses to frequency and density, but an overall signature of NFDS that was intensified at higher population densities. Because our strains were not selected a priori on the basis of particular traits expected to exhibit NFDS, these data represent a relatively unbiased estimate of the role for NFDS in maintaining diversity in protist populations. These findings could help to explain how bloom-forming plankton, which periodically achieve exceptionally high population densities, maintain substantial intraspecific diversity. |
format |
Article in Journal/Newspaper |
author |
Minter, Ewan J. A. Watts, Phillip C. Lowe, Chris D. Brockhurst, Michael A. |
author_facet |
Minter, Ewan J. A. Watts, Phillip C. Lowe, Chris D. Brockhurst, Michael A. |
author_sort |
Minter, Ewan J. A. |
title |
Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations |
title_short |
Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations |
title_full |
Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations |
title_fullStr |
Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations |
title_full_unstemmed |
Data from: Negative frequency-dependent selection is intensified at higher population densities in protist populations |
title_sort |
data from: negative frequency-dependent selection is intensified at higher population densities in protist populations |
publishDate |
2015 |
url |
http://hdl.handle.net/10255/dryad.88309 https://doi.org/10.5061/dryad.nk52s |
op_coverage |
European North Atlantic |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.5061/dryad.nk52s/1 doi:10.1098/rsbl.2015.0192 PMID:26063750 doi:10.5061/dryad.nk52s Minter EJA, Watts PC, Lowe CD, Brockhurst MA (2015) Negative frequency-dependent selection is intensified at higher population densities in protist populations. Biology Letters 11(6): 20150192. http://hdl.handle.net/10255/dryad.88309 |
op_doi |
https://doi.org/10.5061/dryad.nk52s https://doi.org/10.5061/dryad.nk52s/1 https://doi.org/10.1098/rsbl.2015.0192 |
_version_ |
1766131172403838976 |