Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species
Aim In coastal marine systems, biogenic reef-building species have great importance for conservation as they provide habitat for a wide range of species, promoting biodiversity, ecosystem functioning and services. Biogenic reef persistence and recovery from perturbations depend on recolonization by...
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ftarchimer:oai:archimer.ifremer.fr:89949 2023-10-09T21:54:22+02:00 Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species David, Carmen Marzloff, Martin Knights, Antony M. Cugier, Philippe Nunes, Flavia Cordier, Celine Firth, Louise B. Dubois, Stanislas 2022-10 application/pdf https://archimer.ifremer.fr/doc/00788/89949/95448.pdf https://archimer.ifremer.fr/doc/00788/89949/95449.pdf https://doi.org/10.1111/ddi.13596 https://archimer.ifremer.fr/doc/00788/89949/ eng eng Wiley https://archimer.ifremer.fr/doc/00788/89949/95448.pdf https://archimer.ifremer.fr/doc/00788/89949/95449.pdf doi:10.1111/ddi.13596 https://archimer.ifremer.fr/doc/00788/89949/ info:eu-repo/semantics/openAccess restricted use Diversity And Distributions (1366-9516) (Wiley), 2022-10 , Vol. 28 , N. 10 , P. 2056-2070 betweenness centrality graph theory habitat fragmentation hydrodynamic modelling larval dispersal network analysis resilience text Article info:eu-repo/semantics/article 2022 ftarchimer https://doi.org/10.1111/ddi.13596 2023-09-19T22:51:07Z Aim In coastal marine systems, biogenic reef-building species have great importance for conservation as they provide habitat for a wide range of species, promoting biodiversity, ecosystem functioning and services. Biogenic reef persistence and recovery from perturbations depend on recolonization by new recruits. Characterizing larval dispersal among distant reefs is key to understanding how connectivity shapes metapopulation structure and determines network coherence; all of which are of critical importance for effective conservation. Location Northeast Atlantic coast and western English Channel, France. Methods We used a biophysical transport model to simulate larval dispersal of the reef-building polychaete Sabellaria alveolata. We combined dispersal modelling and network analysis into a framework aiming to identify key reef areas and critical dispersal pathways, whose presence in the network is vital to its overall coherence. We evaluated changes in dispersal pathways constrained by different connectivity thresholds, i.e., minimum dispersal rate for the presence of a connection. We tested scenarios of sequential loss of reefs: randomly, by habitat quality (a score for reef status and occupancy in an area) or by betweenness centrality metric (BC; quantifying the proportion of shortest paths connecting all areas that are passing through any given area). Results We found that the network of S. alveolata reefs forms two main regional clusters, the Atlantic coast and the English Channel, which are connected only through weak sporadic dispersal events. Within each cluster, the network is characterized by relatively high connectivity among neighbouring areas with reefs, maintained even under higher connectivity thresholds. Simulating scenarios of sequential loss of reefs further identified high centrality reefs, those with highest BC values, key to network coherence. Main conclusions Effective conservation of this important reef habitat requires a network of protected areas designed to sustain a combination of ... Article in Journal/Newspaper Northeast Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Diversity and Distributions |
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 |
betweenness centrality graph theory habitat fragmentation hydrodynamic modelling larval dispersal network analysis resilience |
spellingShingle |
betweenness centrality graph theory habitat fragmentation hydrodynamic modelling larval dispersal network analysis resilience David, Carmen Marzloff, Martin Knights, Antony M. Cugier, Philippe Nunes, Flavia Cordier, Celine Firth, Louise B. Dubois, Stanislas Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species |
topic_facet |
betweenness centrality graph theory habitat fragmentation hydrodynamic modelling larval dispersal network analysis resilience |
description |
Aim In coastal marine systems, biogenic reef-building species have great importance for conservation as they provide habitat for a wide range of species, promoting biodiversity, ecosystem functioning and services. Biogenic reef persistence and recovery from perturbations depend on recolonization by new recruits. Characterizing larval dispersal among distant reefs is key to understanding how connectivity shapes metapopulation structure and determines network coherence; all of which are of critical importance for effective conservation. Location Northeast Atlantic coast and western English Channel, France. Methods We used a biophysical transport model to simulate larval dispersal of the reef-building polychaete Sabellaria alveolata. We combined dispersal modelling and network analysis into a framework aiming to identify key reef areas and critical dispersal pathways, whose presence in the network is vital to its overall coherence. We evaluated changes in dispersal pathways constrained by different connectivity thresholds, i.e., minimum dispersal rate for the presence of a connection. We tested scenarios of sequential loss of reefs: randomly, by habitat quality (a score for reef status and occupancy in an area) or by betweenness centrality metric (BC; quantifying the proportion of shortest paths connecting all areas that are passing through any given area). Results We found that the network of S. alveolata reefs forms two main regional clusters, the Atlantic coast and the English Channel, which are connected only through weak sporadic dispersal events. Within each cluster, the network is characterized by relatively high connectivity among neighbouring areas with reefs, maintained even under higher connectivity thresholds. Simulating scenarios of sequential loss of reefs further identified high centrality reefs, those with highest BC values, key to network coherence. Main conclusions Effective conservation of this important reef habitat requires a network of protected areas designed to sustain a combination of ... |
format |
Article in Journal/Newspaper |
author |
David, Carmen Marzloff, Martin Knights, Antony M. Cugier, Philippe Nunes, Flavia Cordier, Celine Firth, Louise B. Dubois, Stanislas |
author_facet |
David, Carmen Marzloff, Martin Knights, Antony M. Cugier, Philippe Nunes, Flavia Cordier, Celine Firth, Louise B. Dubois, Stanislas |
author_sort |
David, Carmen |
title |
Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species |
title_short |
Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species |
title_full |
Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species |
title_fullStr |
Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species |
title_full_unstemmed |
Connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species |
title_sort |
connectivity modelling informs metapopulation structure and conservation priorities for a reef‐building species |
publisher |
Wiley |
publishDate |
2022 |
url |
https://archimer.ifremer.fr/doc/00788/89949/95448.pdf https://archimer.ifremer.fr/doc/00788/89949/95449.pdf https://doi.org/10.1111/ddi.13596 https://archimer.ifremer.fr/doc/00788/89949/ |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Diversity And Distributions (1366-9516) (Wiley), 2022-10 , Vol. 28 , N. 10 , P. 2056-2070 |
op_relation |
https://archimer.ifremer.fr/doc/00788/89949/95448.pdf https://archimer.ifremer.fr/doc/00788/89949/95449.pdf doi:10.1111/ddi.13596 https://archimer.ifremer.fr/doc/00788/89949/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1111/ddi.13596 |
container_title |
Diversity and Distributions |
_version_ |
1779317894974275584 |