Santa Maria di Leuca Province (Mediterranean Sea): Identification of Suitable Mounds for Cold-Water Coral Settlement Using Geomorphometric Proxies and Maxent Methods
The Santa Maria di Leuca (SML) cold-water coral province (northern Ionian Sea) has the largest occurrence of a living white coral community currently known in the Mediterranean Sea. Madrepora oculata and Lophelia pertusa, identified as marking sensitive habitats of relevance by the General Fisheries...
Published in: | Frontiers in Marine Science |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media SA
2017
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Subjects: | |
Online Access: | https://archimer.ifremer.fr/doc/00407/51826/52418.pdf https://archimer.ifremer.fr/doc/00407/51826/52419.pdf https://archimer.ifremer.fr/doc/00407/51826/52420.pdf https://archimer.ifremer.fr/doc/00407/51826/52421.pdf https://archimer.ifremer.fr/doc/00407/51826/52422.pdf https://archimer.ifremer.fr/doc/00407/51826/52423.pdf https://doi.org/10.3389/fmars.2017.00338 https://archimer.ifremer.fr/doc/00407/51826/ |
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ftarchimer:oai:archimer.ifremer.fr:51826 |
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openpolar |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
predictive habitat mapping maxent cold-water coral ecological proxies Santa Maria di Leuca Mediterranean Sea |
spellingShingle |
predictive habitat mapping maxent cold-water coral ecological proxies Santa Maria di Leuca Mediterranean Sea Bargain, Annaelle Marchese, Fabrice Savini, Alessandra Taviani, Marco Fabri, Marie-claire Santa Maria di Leuca Province (Mediterranean Sea): Identification of Suitable Mounds for Cold-Water Coral Settlement Using Geomorphometric Proxies and Maxent Methods |
topic_facet |
predictive habitat mapping maxent cold-water coral ecological proxies Santa Maria di Leuca Mediterranean Sea |
description |
The Santa Maria di Leuca (SML) cold-water coral province (northern Ionian Sea) has the largest occurrence of a living white coral community currently known in the Mediterranean Sea. Madrepora oculata and Lophelia pertusa, identified as marking sensitive habitats of relevance by the General Fisheries Commission for the Mediterranean, have been observed heterogeneously distributed on the summits of several mounds. This particularly patchy and uneven distribution in addition to their importance for regional biodiversity highlights the need to better understand their environmental preferences and predict their distribution. Bathymetric data (40 m resolution) was used to derive seafloor characteristics. A fine scale index quantifying the landscape elevation (Bathymetric Position Index at 120 m resolution) was used to select all the elevated features considered as candidate morphologies for potential coral mounds. Statistics on 22 known coral topped mounds were computed. Two statistical methods were then used to identify other potential coral mounds based on predictive variables. The first method, the Geomorphometric proxies method, consists in computing basic statistics of terrain variables, using them for a step-by-step classification in a quantitative approach to select a subset of candidate morphologies. The second method consists in using a predictive Habitat Suitability Model (Maxent model). The Geomorphometric proxies method identified 736 potential coral mounds while the Maxent method predicted 1,252 potential coral mounds. A subset of 517 potential coral mounds was common to both methods. The analysis of the contribution of each variable with the Maxent method showed that the variable “Vector Ruggedness Measure” at a resolution of 5 pixels (200 m) contributed to 53% of the final Maxent model, followed by the “Terrain Texture” index (31%) at a resolution of 11 pixels (440 m). The common potential coral mounds are mainly located in an area characterized by a mass transport deposit, also called the mounds area because of the roughness of the seafloor, in accordance with the high proportional contribution of the noticeable first roughness index to the Maxent model. The results highlight the importance of the global conservation of the entire Province, with white coral probably widespread over the entire 600 km2 SML area. |
format |
Article in Journal/Newspaper |
author |
Bargain, Annaelle Marchese, Fabrice Savini, Alessandra Taviani, Marco Fabri, Marie-claire |
author_facet |
Bargain, Annaelle Marchese, Fabrice Savini, Alessandra Taviani, Marco Fabri, Marie-claire |
author_sort |
Bargain, Annaelle |
title |
Santa Maria di Leuca Province (Mediterranean Sea): Identification of Suitable Mounds for Cold-Water Coral Settlement Using Geomorphometric Proxies and Maxent Methods |
title_short |
Santa Maria di Leuca Province (Mediterranean Sea): Identification of Suitable Mounds for Cold-Water Coral Settlement Using Geomorphometric Proxies and Maxent Methods |
title_full |
Santa Maria di Leuca Province (Mediterranean Sea): Identification of Suitable Mounds for Cold-Water Coral Settlement Using Geomorphometric Proxies and Maxent Methods |
title_fullStr |
Santa Maria di Leuca Province (Mediterranean Sea): Identification of Suitable Mounds for Cold-Water Coral Settlement Using Geomorphometric Proxies and Maxent Methods |
title_full_unstemmed |
Santa Maria di Leuca Province (Mediterranean Sea): Identification of Suitable Mounds for Cold-Water Coral Settlement Using Geomorphometric Proxies and Maxent Methods |
title_sort |
santa maria di leuca province (mediterranean sea): identification of suitable mounds for cold-water coral settlement using geomorphometric proxies and maxent methods |
publisher |
Frontiers Media SA |
publishDate |
2017 |
url |
https://archimer.ifremer.fr/doc/00407/51826/52418.pdf https://archimer.ifremer.fr/doc/00407/51826/52419.pdf https://archimer.ifremer.fr/doc/00407/51826/52420.pdf https://archimer.ifremer.fr/doc/00407/51826/52421.pdf https://archimer.ifremer.fr/doc/00407/51826/52422.pdf https://archimer.ifremer.fr/doc/00407/51826/52423.pdf https://doi.org/10.3389/fmars.2017.00338 https://archimer.ifremer.fr/doc/00407/51826/ |
genre |
Lophelia pertusa |
genre_facet |
Lophelia pertusa |
op_source |
Frontiers In Marine Science (2296-7745) (Frontiers Media SA), 2017 , Vol. 4 , N. 338 , P. 1-17 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/287844/EU//COCONET info:eu-repo/grantAgreement/EC/FP7/213144/EU//CORALFISH https://archimer.ifremer.fr/doc/00407/51826/52418.pdf https://archimer.ifremer.fr/doc/00407/51826/52419.pdf https://archimer.ifremer.fr/doc/00407/51826/52420.pdf https://archimer.ifremer.fr/doc/00407/51826/52421.pdf https://archimer.ifremer.fr/doc/00407/51826/52422.pdf https://archimer.ifremer.fr/doc/00407/51826/52423.pdf doi:10.3389/fmars.2017.00338 https://archimer.ifremer.fr/doc/00407/51826/ |
op_rights |
2017 Bargain, Marchese, Savini, Taviani and Fabri. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. info:eu-repo/semantics/openAccess restricted use |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2017.00338 |
container_title |
Frontiers in Marine Science |
container_volume |
4 |
_version_ |
1766064711531495424 |
spelling |
ftarchimer:oai:archimer.ifremer.fr:51826 2023-05-15T17:08:50+02:00 Santa Maria di Leuca Province (Mediterranean Sea): Identification of Suitable Mounds for Cold-Water Coral Settlement Using Geomorphometric Proxies and Maxent Methods Bargain, Annaelle Marchese, Fabrice Savini, Alessandra Taviani, Marco Fabri, Marie-claire 2017 application/pdf https://archimer.ifremer.fr/doc/00407/51826/52418.pdf https://archimer.ifremer.fr/doc/00407/51826/52419.pdf https://archimer.ifremer.fr/doc/00407/51826/52420.pdf https://archimer.ifremer.fr/doc/00407/51826/52421.pdf https://archimer.ifremer.fr/doc/00407/51826/52422.pdf https://archimer.ifremer.fr/doc/00407/51826/52423.pdf https://doi.org/10.3389/fmars.2017.00338 https://archimer.ifremer.fr/doc/00407/51826/ eng eng Frontiers Media SA info:eu-repo/grantAgreement/EC/FP7/287844/EU//COCONET info:eu-repo/grantAgreement/EC/FP7/213144/EU//CORALFISH https://archimer.ifremer.fr/doc/00407/51826/52418.pdf https://archimer.ifremer.fr/doc/00407/51826/52419.pdf https://archimer.ifremer.fr/doc/00407/51826/52420.pdf https://archimer.ifremer.fr/doc/00407/51826/52421.pdf https://archimer.ifremer.fr/doc/00407/51826/52422.pdf https://archimer.ifremer.fr/doc/00407/51826/52423.pdf doi:10.3389/fmars.2017.00338 https://archimer.ifremer.fr/doc/00407/51826/ 2017 Bargain, Marchese, Savini, Taviani and Fabri. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. info:eu-repo/semantics/openAccess restricted use CC-BY Frontiers In Marine Science (2296-7745) (Frontiers Media SA), 2017 , Vol. 4 , N. 338 , P. 1-17 predictive habitat mapping maxent cold-water coral ecological proxies Santa Maria di Leuca Mediterranean Sea text Publication info:eu-repo/semantics/article 2017 ftarchimer https://doi.org/10.3389/fmars.2017.00338 2021-09-23T20:30:00Z The Santa Maria di Leuca (SML) cold-water coral province (northern Ionian Sea) has the largest occurrence of a living white coral community currently known in the Mediterranean Sea. Madrepora oculata and Lophelia pertusa, identified as marking sensitive habitats of relevance by the General Fisheries Commission for the Mediterranean, have been observed heterogeneously distributed on the summits of several mounds. This particularly patchy and uneven distribution in addition to their importance for regional biodiversity highlights the need to better understand their environmental preferences and predict their distribution. Bathymetric data (40 m resolution) was used to derive seafloor characteristics. A fine scale index quantifying the landscape elevation (Bathymetric Position Index at 120 m resolution) was used to select all the elevated features considered as candidate morphologies for potential coral mounds. Statistics on 22 known coral topped mounds were computed. Two statistical methods were then used to identify other potential coral mounds based on predictive variables. The first method, the Geomorphometric proxies method, consists in computing basic statistics of terrain variables, using them for a step-by-step classification in a quantitative approach to select a subset of candidate morphologies. The second method consists in using a predictive Habitat Suitability Model (Maxent model). The Geomorphometric proxies method identified 736 potential coral mounds while the Maxent method predicted 1,252 potential coral mounds. A subset of 517 potential coral mounds was common to both methods. The analysis of the contribution of each variable with the Maxent method showed that the variable “Vector Ruggedness Measure” at a resolution of 5 pixels (200 m) contributed to 53% of the final Maxent model, followed by the “Terrain Texture” index (31%) at a resolution of 11 pixels (440 m). The common potential coral mounds are mainly located in an area characterized by a mass transport deposit, also called the mounds area because of the roughness of the seafloor, in accordance with the high proportional contribution of the noticeable first roughness index to the Maxent model. The results highlight the importance of the global conservation of the entire Province, with white coral probably widespread over the entire 600 km2 SML area. Article in Journal/Newspaper Lophelia pertusa Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Frontiers in Marine Science 4 |