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Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune

Matt Joyce, Sinead M. Crotty, Christine Angelini, Orlando Cordero, Collin Ortals, Davide De Battisti, John Griffin Orcid Logo

PLOS ONE, Volume: 17, Issue: 8, Start page: e0273258

Swansea University Authors: Matt Joyce, Davide De Battisti, John Griffin Orcid Logo

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DOI (Published version): 10.1371/journal.pone.0273258

Abstract

Coastal ecosystems such as sand dunes, mangrove forests, and salt marshes provide natural storm protection for vulnerable shorelines. At the same time, storms erode and redistribute biological materials among coastal systems via wrack. Yet how such cross-ecosystem subsidies affect post-storm recover...

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Published in: PLOS ONE
ISSN: 1932-6203
Published: Public Library of Science (PLoS) 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa61174
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At the same time, storms erode and redistribute biological materials among coastal systems via wrack. Yet how such cross-ecosystem subsidies affect post-storm recovery is not well understood. Here, we report an experimental investigation into the effect of storm wrack on eco-geomorphological recovery of a coastal embryo dune in north-eastern Florida, USA, following hurricane Irma. We contrasted replicated 100-m2 wrack-removal and unmanipulated (control) plots, measuring vegetation and geomorphological responses over 21 months. Relative to controls, grass cover was reduced 4-fold where diverse storm wrack, including seagrass rhizomes, seaweed, and wood, was removed. Wrack removal was also associated with a reduction in mean elevation, which persisted until the end of the experiment when removal plots had a 14% lower mean elevation than control plots. These results suggest that subsides of wrack re-distributed from other ecosystem types (e.g. seagrasses, macroalgae, uplands): i) enhances the growth of certain dune-building grasses; and ii) boosts the geomorphological recovery of coastal dunes. 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spelling 2022-10-06T14:43:02.3079289 v2 61174 2022-09-12 Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune 55b504d51b6d9d6b9f765628f9592fd1 Matt Joyce Matt Joyce true false dda80a3c7c8b7fe4af0f4bbd8eb91f15 Davide De Battisti Davide De Battisti true false 9814fbffa76dd9c9a207166354cd0b2f 0000-0003-3295-6480 John Griffin John Griffin true false 2022-09-12 Coastal ecosystems such as sand dunes, mangrove forests, and salt marshes provide natural storm protection for vulnerable shorelines. At the same time, storms erode and redistribute biological materials among coastal systems via wrack. Yet how such cross-ecosystem subsidies affect post-storm recovery is not well understood. Here, we report an experimental investigation into the effect of storm wrack on eco-geomorphological recovery of a coastal embryo dune in north-eastern Florida, USA, following hurricane Irma. We contrasted replicated 100-m2 wrack-removal and unmanipulated (control) plots, measuring vegetation and geomorphological responses over 21 months. Relative to controls, grass cover was reduced 4-fold where diverse storm wrack, including seagrass rhizomes, seaweed, and wood, was removed. Wrack removal was also associated with a reduction in mean elevation, which persisted until the end of the experiment when removal plots had a 14% lower mean elevation than control plots. These results suggest that subsides of wrack re-distributed from other ecosystem types (e.g. seagrasses, macroalgae, uplands): i) enhances the growth of certain dune-building grasses; and ii) boosts the geomorphological recovery of coastal dunes. Our study also indicates that the practice of post-storm beach cleaning to remove wrack–a practice widespread outside of protected areas–may undermine the resilience of coastal dunes and their services. Journal Article PLOS ONE 17 8 e0273258 Public Library of Science (PLoS) 1932-6203 31 8 2022 2022-08-31 10.1371/journal.pone.0273258 Data Availability Statement: All files are available from the EID (Environmental Information Data Centre), https://doi.org/10.5285/0c93703a-c185-4dd9-b8d7-8d3698535245. COLLEGE NANME COLLEGE CODE Swansea University This research was funded by NERC Urgency grant NE/R016593/1 to JG (https://www.ukri.org/opportunity/nerc-urgency-funding/) and NSF CAREER Grant 1652628 to CA (https://beta.nsf.gov/funding/opportunities/faculty-early-careerdevelopment-program-career). 2022-10-06T14:43:02.3079289 2022-09-12T08:48:31.1800028 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Matt Joyce 1 Sinead M. Crotty 2 Christine Angelini 3 Orlando Cordero 4 Collin Ortals 5 Davide De Battisti 6 John Griffin 0000-0003-3295-6480 7 61174__25332__0a45b135365e479399e77cc2118183ca.pdf 61174_VoR.pdf 2022-10-06T14:41:55.7505610 Output 1498258 application/pdf Version of Record true © 2022 Joyce et al. This is an open access article distributed under the terms of the Creative Commons Attribution License true eng http://creativecommons.org/licenses/by/4.0/
title Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune
spellingShingle Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune
Matt Joyce
Davide De Battisti
John Griffin
title_short Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune
title_full Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune
title_fullStr Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune
title_full_unstemmed Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune
title_sort Wrack enhancement of post-hurricane vegetation and geomorphological recovery in a coastal dune
author_id_str_mv 55b504d51b6d9d6b9f765628f9592fd1
dda80a3c7c8b7fe4af0f4bbd8eb91f15
9814fbffa76dd9c9a207166354cd0b2f
author_id_fullname_str_mv 55b504d51b6d9d6b9f765628f9592fd1_***_Matt Joyce
dda80a3c7c8b7fe4af0f4bbd8eb91f15_***_Davide De Battisti
9814fbffa76dd9c9a207166354cd0b2f_***_John Griffin
author Matt Joyce
Davide De Battisti
John Griffin
author2 Matt Joyce
Sinead M. Crotty
Christine Angelini
Orlando Cordero
Collin Ortals
Davide De Battisti
John Griffin
format Journal article
container_title PLOS ONE
container_volume 17
container_issue 8
container_start_page e0273258
publishDate 2022
institution Swansea University
issn 1932-6203
doi_str_mv 10.1371/journal.pone.0273258
publisher Public Library of Science (PLoS)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
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description Coastal ecosystems such as sand dunes, mangrove forests, and salt marshes provide natural storm protection for vulnerable shorelines. At the same time, storms erode and redistribute biological materials among coastal systems via wrack. Yet how such cross-ecosystem subsidies affect post-storm recovery is not well understood. Here, we report an experimental investigation into the effect of storm wrack on eco-geomorphological recovery of a coastal embryo dune in north-eastern Florida, USA, following hurricane Irma. We contrasted replicated 100-m2 wrack-removal and unmanipulated (control) plots, measuring vegetation and geomorphological responses over 21 months. Relative to controls, grass cover was reduced 4-fold where diverse storm wrack, including seagrass rhizomes, seaweed, and wood, was removed. Wrack removal was also associated with a reduction in mean elevation, which persisted until the end of the experiment when removal plots had a 14% lower mean elevation than control plots. These results suggest that subsides of wrack re-distributed from other ecosystem types (e.g. seagrasses, macroalgae, uplands): i) enhances the growth of certain dune-building grasses; and ii) boosts the geomorphological recovery of coastal dunes. Our study also indicates that the practice of post-storm beach cleaning to remove wrack–a practice widespread outside of protected areas–may undermine the resilience of coastal dunes and their services.
published_date 2022-08-31T04:19:49Z
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score 11.013082

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