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Depth-dependent parental effects create invisible barriers to coral dispersal
Historically, marine populations were considered to be interconnected across large geographic regions due to the lack of apparent physical barriers to dispersal, coupled with a potentially widely dispersive pelagic larval stage. Recent studies, however, are providing increasing evidence of small-sca...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7884412/ https://www.ncbi.nlm.nih.gov/pubmed/33589736 http://dx.doi.org/10.1038/s42003-021-01727-9 |
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author | Shlesinger, Tom Loya, Yossi |
author_facet | Shlesinger, Tom Loya, Yossi |
author_sort | Shlesinger, Tom |
collection | PubMed |
description | Historically, marine populations were considered to be interconnected across large geographic regions due to the lack of apparent physical barriers to dispersal, coupled with a potentially widely dispersive pelagic larval stage. Recent studies, however, are providing increasing evidence of small-scale genetic segregation of populations across habitats and depths, separated in some cases by only a few dozen meters. Here, we performed a series of ex-situ and in-situ experiments using coral larvae of three brooding species from contrasting shallow- and deep-water reef habitats, and show that their settlement success, habitat choices, and subsequent survival are substantially influenced by parental effects in a habitat-dependent manner. Generally, larvae originating from deep-water corals, which experience less variable conditions, expressed more specific responses than shallow-water larvae, with a higher settlement success in simulated parental-habitat conditions. Survival of juvenile corals experimentally translocated to the sea was significantly lower when not at parental depths. We conclude that local adaptations and parental effects alongside larval selectivity and phenotype-environment mismatches combine to create invisible semipermeable barriers to coral dispersal and connectivity, leading to habitat-dependent population segregation. |
format | Online Article Text |
id | pubmed-7884412 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-78844122021-02-25 Depth-dependent parental effects create invisible barriers to coral dispersal Shlesinger, Tom Loya, Yossi Commun Biol Article Historically, marine populations were considered to be interconnected across large geographic regions due to the lack of apparent physical barriers to dispersal, coupled with a potentially widely dispersive pelagic larval stage. Recent studies, however, are providing increasing evidence of small-scale genetic segregation of populations across habitats and depths, separated in some cases by only a few dozen meters. Here, we performed a series of ex-situ and in-situ experiments using coral larvae of three brooding species from contrasting shallow- and deep-water reef habitats, and show that their settlement success, habitat choices, and subsequent survival are substantially influenced by parental effects in a habitat-dependent manner. Generally, larvae originating from deep-water corals, which experience less variable conditions, expressed more specific responses than shallow-water larvae, with a higher settlement success in simulated parental-habitat conditions. Survival of juvenile corals experimentally translocated to the sea was significantly lower when not at parental depths. We conclude that local adaptations and parental effects alongside larval selectivity and phenotype-environment mismatches combine to create invisible semipermeable barriers to coral dispersal and connectivity, leading to habitat-dependent population segregation. Nature Publishing Group UK 2021-02-15 /pmc/articles/PMC7884412/ /pubmed/33589736 http://dx.doi.org/10.1038/s42003-021-01727-9 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Shlesinger, Tom Loya, Yossi Depth-dependent parental effects create invisible barriers to coral dispersal |
title | Depth-dependent parental effects create invisible barriers to coral dispersal |
title_full | Depth-dependent parental effects create invisible barriers to coral dispersal |
title_fullStr | Depth-dependent parental effects create invisible barriers to coral dispersal |
title_full_unstemmed | Depth-dependent parental effects create invisible barriers to coral dispersal |
title_short | Depth-dependent parental effects create invisible barriers to coral dispersal |
title_sort | depth-dependent parental effects create invisible barriers to coral dispersal |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7884412/ https://www.ncbi.nlm.nih.gov/pubmed/33589736 http://dx.doi.org/10.1038/s42003-021-01727-9 |
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