Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI.

The 1983-1984 mortality event of the long-spined sea urchin Diadema antillarum reduced their population by up to 99% and was accompanied by a phase shift from coral dominated to algal dominated reefs in the Caribbean. Modest rebounds of D. antillarum populations in the Caribbean have been noted, and...

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Main Authors: Renee D Godard, C Morgan Wilson, Caleb G Amstutz, Natalie Badawy, Brittany Richardson
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0297026&type=printable
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author Renee D Godard
C Morgan Wilson
Caleb G Amstutz
Natalie Badawy
Brittany Richardson
author_facet Renee D Godard
C Morgan Wilson
Caleb G Amstutz
Natalie Badawy
Brittany Richardson
author_sort Renee D Godard
collection DOAJ
description The 1983-1984 mortality event of the long-spined sea urchin Diadema antillarum reduced their population by up to 99% and was accompanied by a phase shift from coral dominated to algal dominated reefs in the Caribbean. Modest rebounds of D. antillarum populations in the Caribbean have been noted, and here we document the impacts of two major hurricanes (2017, Irma and Maria) and the 2022 disease outbreak on populations of D. antillarum found by targeted surveys in the urchin zone at nine fringing reef and three mangrove sites on St. John, USVI. D. antillarum populations at the reef sites had declined by 66% five months after the hurricanes but showed significant recovery just one year later. The impact of recent disease on these populations was much more profound, with all reef populations exhibiting a significant decline (96.4% overall). Fifteen months after the disease was first noted, D. antillarum at reef sites exhibited a modest yet significant recovery (15% pre-disease density). D. antillarum populations in mangrove sites were impacted by the hurricanes but exhibited much higher density than reef sites after the disease outbreak, suggesting that at D. antillarum in some locations may be less vulnerable to disease.
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spelling doaj.art-dcd6bcc571b64987b3b92037ca418c072024-02-21T05:31:49ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-01192e029702610.1371/journal.pone.0297026Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI.Renee D GodardC Morgan WilsonCaleb G AmstutzNatalie BadawyBrittany RichardsonThe 1983-1984 mortality event of the long-spined sea urchin Diadema antillarum reduced their population by up to 99% and was accompanied by a phase shift from coral dominated to algal dominated reefs in the Caribbean. Modest rebounds of D. antillarum populations in the Caribbean have been noted, and here we document the impacts of two major hurricanes (2017, Irma and Maria) and the 2022 disease outbreak on populations of D. antillarum found by targeted surveys in the urchin zone at nine fringing reef and three mangrove sites on St. John, USVI. D. antillarum populations at the reef sites had declined by 66% five months after the hurricanes but showed significant recovery just one year later. The impact of recent disease on these populations was much more profound, with all reef populations exhibiting a significant decline (96.4% overall). Fifteen months after the disease was first noted, D. antillarum at reef sites exhibited a modest yet significant recovery (15% pre-disease density). D. antillarum populations in mangrove sites were impacted by the hurricanes but exhibited much higher density than reef sites after the disease outbreak, suggesting that at D. antillarum in some locations may be less vulnerable to disease.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0297026&type=printable
spellingShingle Renee D Godard
C Morgan Wilson
Caleb G Amstutz
Natalie Badawy
Brittany Richardson
Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI.
PLoS ONE
title Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI.
title_full Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI.
title_fullStr Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI.
title_full_unstemmed Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI.
title_short Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI.
title_sort impacts of hurricanes and disease on diadema antillarum in shallow water reef and mangrove locations in st john usvi
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0297026&type=printable
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