3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane

Abstract Extreme disturbances such as hurricanes can cause reductions in coral cover and three-dimensional (3D) structural complexity of coral reefs. We examined changes in structural complexity utilizing 3D reconstruction of a coral-reef site before and after Hurricane Walaka passed through Lalo of...

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Autores principales:	Kailey H. Pascoe, Atsuko Fukunaga, Randall K. Kosaki, John H. R. Burns
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/43adf6ff098f4950b5c3b1dad4cfe8d8
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spelling	oai:doaj.org-article:43adf6ff098f4950b5c3b1dad4cfe8d82021-12-02T14:58:14Z3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane10.1038/s41598-021-91509-42045-2322https://doaj.org/article/43adf6ff098f4950b5c3b1dad4cfe8d82021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91509-4https://doaj.org/toc/2045-2322Abstract Extreme disturbances such as hurricanes can cause reductions in coral cover and three-dimensional (3D) structural complexity of coral reefs. We examined changes in structural complexity utilizing 3D reconstruction of a coral-reef site before and after Hurricane Walaka passed through Lalo of the Northwestern Hawaiian Islands. This event resulted in complete destruction of the coral-reef habitat, with dramatic changes in benthic cover from pre-hurricane tabulate coral to post-hurricane rubble. Rugosity and mean slope decreased after the hurricane, while structural complexity, captured by vector ruggedness measure (VRM), showed resolution-specific responses. This metric captured the structural complexity of rubble at a high raster resolution of 1 cm and that of tabulate coral at lower resolutions, resulting in decreases in mean VRM values at 2- and 4-cm resolutions but an increase at 1-cm resolution. Variability in profile and planform curvature was reduced after the hurricane due to a disappearance of extreme curvature values created by the tabulate coral after the hurricane. This study highlights the varying responses of habitat complexity metrics to the complete destruction of a coral reef and provides us with insights into how choices of habitat complexity metrics can affect quantitative assessments of 3D habitat structure.Kailey H. PascoeAtsuko FukunagaRandall K. KosakiJohn H. R. BurnsNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kailey H. Pascoe Atsuko Fukunaga Randall K. Kosaki John H. R. Burns 3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane
description	Abstract Extreme disturbances such as hurricanes can cause reductions in coral cover and three-dimensional (3D) structural complexity of coral reefs. We examined changes in structural complexity utilizing 3D reconstruction of a coral-reef site before and after Hurricane Walaka passed through Lalo of the Northwestern Hawaiian Islands. This event resulted in complete destruction of the coral-reef habitat, with dramatic changes in benthic cover from pre-hurricane tabulate coral to post-hurricane rubble. Rugosity and mean slope decreased after the hurricane, while structural complexity, captured by vector ruggedness measure (VRM), showed resolution-specific responses. This metric captured the structural complexity of rubble at a high raster resolution of 1 cm and that of tabulate coral at lower resolutions, resulting in decreases in mean VRM values at 2- and 4-cm resolutions but an increase at 1-cm resolution. Variability in profile and planform curvature was reduced after the hurricane due to a disappearance of extreme curvature values created by the tabulate coral after the hurricane. This study highlights the varying responses of habitat complexity metrics to the complete destruction of a coral reef and provides us with insights into how choices of habitat complexity metrics can affect quantitative assessments of 3D habitat structure.
format	article
author	Kailey H. Pascoe Atsuko Fukunaga Randall K. Kosaki John H. R. Burns
author_facet	Kailey H. Pascoe Atsuko Fukunaga Randall K. Kosaki John H. R. Burns
author_sort	Kailey H. Pascoe
title	3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane
title_short	3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane
title_full	3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane
title_fullStr	3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane
title_full_unstemmed	3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane
title_sort	3d assessment of a coral reef at lalo atoll reveals varying responses of habitat metrics following a catastrophic hurricane
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/43adf6ff098f4950b5c3b1dad4cfe8d8
work_keys_str_mv	AT kaileyhpascoe 3dassessmentofacoralreefatlaloatollrevealsvaryingresponsesofhabitatmetricsfollowingacatastrophichurricane AT atsukofukunaga 3dassessmentofacoralreefatlaloatollrevealsvaryingresponsesofhabitatmetricsfollowingacatastrophichurricane AT randallkkosaki 3dassessmentofacoralreefatlaloatollrevealsvaryingresponsesofhabitatmetricsfollowingacatastrophichurricane AT johnhrburns 3dassessmentofacoralreefatlaloatollrevealsvaryingresponsesofhabitatmetricsfollowingacatastrophichurricane
_version_	1718389321258500096

3D assessment of a coral reef at Lalo Atoll reveals varying responses of habitat metrics following a catastrophic hurricane

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