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Dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines
Thermal-stress events have changed the structure, biodiversity, and functioning of coral reefs. But how these disturbances affect the dynamics of individual coral colonies remains unclear. By tracking the fate of 1069 individual Acropora and massive Porites coral colonies for up to 5 years, spanning...
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/PMC8458526/ https://www.ncbi.nlm.nih.gov/pubmed/34552159 http://dx.doi.org/10.1038/s41598-021-98239-7 |
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author | Morais, Juliano Morais, Renato A. Tebbett, Sterling B. Pratchett, Morgan S. Bellwood, David R. |
author_facet | Morais, Juliano Morais, Renato A. Tebbett, Sterling B. Pratchett, Morgan S. Bellwood, David R. |
author_sort | Morais, Juliano |
collection | PubMed |
description | Thermal-stress events have changed the structure, biodiversity, and functioning of coral reefs. But how these disturbances affect the dynamics of individual coral colonies remains unclear. By tracking the fate of 1069 individual Acropora and massive Porites coral colonies for up to 5 years, spanning three bleaching events, we reveal striking genus-level differences in their demographic response to bleaching (mortality, growth, and recruitment). Although Acropora colonies were locally extirpated, substantial local recruitment and fast growth revealed a marked capacity for apparent recovery. By contrast, almost all massive Porites colonies survived and the majority grew in area; yet no new colonies were detected over the 5 years. Our results highlight contrasting dynamics of boom-and-bust vs. protracted declines in two major coral groups. These dangerous demographics emphasise the need for caution when documenting the susceptibility and perceived resistance or recovery of corals to disturbances. |
format | Online Article Text |
id | pubmed-8458526 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-84585262021-09-24 Dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines Morais, Juliano Morais, Renato A. Tebbett, Sterling B. Pratchett, Morgan S. Bellwood, David R. Sci Rep Article Thermal-stress events have changed the structure, biodiversity, and functioning of coral reefs. But how these disturbances affect the dynamics of individual coral colonies remains unclear. By tracking the fate of 1069 individual Acropora and massive Porites coral colonies for up to 5 years, spanning three bleaching events, we reveal striking genus-level differences in their demographic response to bleaching (mortality, growth, and recruitment). Although Acropora colonies were locally extirpated, substantial local recruitment and fast growth revealed a marked capacity for apparent recovery. By contrast, almost all massive Porites colonies survived and the majority grew in area; yet no new colonies were detected over the 5 years. Our results highlight contrasting dynamics of boom-and-bust vs. protracted declines in two major coral groups. These dangerous demographics emphasise the need for caution when documenting the susceptibility and perceived resistance or recovery of corals to disturbances. Nature Publishing Group UK 2021-09-22 /pmc/articles/PMC8458526/ /pubmed/34552159 http://dx.doi.org/10.1038/s41598-021-98239-7 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Morais, Juliano Morais, Renato A. Tebbett, Sterling B. Pratchett, Morgan S. Bellwood, David R. Dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines |
title | Dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines |
title_full | Dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines |
title_fullStr | Dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines |
title_full_unstemmed | Dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines |
title_short | Dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines |
title_sort | dangerous demographics in post-bleach corals reveal boom-bust versus protracted declines |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8458526/ https://www.ncbi.nlm.nih.gov/pubmed/34552159 http://dx.doi.org/10.1038/s41598-021-98239-7 |
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