Mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system

Understanding the connectivity among seascape habitats is an important emerging topic in marine ecology and coastal management. Mangroves are known to provide many ecosystem services such as coastal protection and carbon cycling, but their functional relationships with adjacent benthic intertidal co...

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Autores principales:	Kasper J. Meijer, El-Hacen M. El-Hacen, Laura L. Govers, Marc Lavaleye, Theunis Piersma, Han Olff
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Bijagós Archipelago Guinea-Bissau Connectivity Intertidal mudflats Landscape ecology Mangroves Seascape conservation Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/9262e456746949db9dedf4d78f1f2c96
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spelling	oai:doaj.org-article:9262e456746949db9dedf4d78f1f2c962021-12-01T04:58:14ZMangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system1470-160X10.1016/j.ecolind.2021.108030https://doaj.org/article/9262e456746949db9dedf4d78f1f2c962021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21006956https://doaj.org/toc/1470-160XUnderstanding the connectivity among seascape habitats is an important emerging topic in marine ecology and coastal management. Mangroves are known to provide many ecosystem services such as coastal protection and carbon cycling, but their functional relationships with adjacent benthic intertidal communities are less clear. We examined how spatial adjacency to mangroves affects macrobenthic communities of intertidal mudflats in a tropical estuarine ecosystem. In the Bijagós Archipelago, Guinea-Bissau, benthic macrofauna assemblages were compared among sampling locations with different connectivities between intertidal mudflats and mangrove stands. We explored how a single mangrove connectivity index (MCI), combining mangrove tidal basin size and the distance to the mangrove edge, affected macrobenthic composition, and compared this effect to sediment properties. In addition, we used structural equation modelling (SEM) and ordination to determine how different environmental predictors directly and indirectly affected macrobenthic communities. MCI strongly affected macrobenthic composition and species abundance, and SEM revealed that this effect contained both a direct component and an indirect component through mudflat NDVI (normalized difference vegetation index, an indicator for microphytobenthos). Sediment properties (grain size, organic matter) affected macrobenthos independently from MCI, nevertheless sediment properties were also affected by MCI. We show the importance of accounting for the seascape structure of tidal basins when investigating the connectivity between mangroves and macrobenthic communities of intertidal mudflats. As benthic macrofauna is a key food source for endangered fish and waders in these systems, our findings provide strong arguments for the integrative conservation of intertidal mudflats and mangroves at the seascape scale.Kasper J. MeijerEl-Hacen M. El-HacenLaura L. GoversMarc LavaleyeTheunis PiersmaHan OlffElsevierarticleBijagós Archipelago Guinea-BissauConnectivityIntertidal mudflatsLandscape ecologyMangrovesSeascape conservationEcologyQH540-549.5ENEcological Indicators, Vol 130, Iss , Pp 108030- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Bijagós Archipelago Guinea-Bissau Connectivity Intertidal mudflats Landscape ecology Mangroves Seascape conservation Ecology QH540-549.5
spellingShingle	Bijagós Archipelago Guinea-Bissau Connectivity Intertidal mudflats Landscape ecology Mangroves Seascape conservation Ecology QH540-549.5 Kasper J. Meijer El-Hacen M. El-Hacen Laura L. Govers Marc Lavaleye Theunis Piersma Han Olff Mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system
description	Understanding the connectivity among seascape habitats is an important emerging topic in marine ecology and coastal management. Mangroves are known to provide many ecosystem services such as coastal protection and carbon cycling, but their functional relationships with adjacent benthic intertidal communities are less clear. We examined how spatial adjacency to mangroves affects macrobenthic communities of intertidal mudflats in a tropical estuarine ecosystem. In the Bijagós Archipelago, Guinea-Bissau, benthic macrofauna assemblages were compared among sampling locations with different connectivities between intertidal mudflats and mangrove stands. We explored how a single mangrove connectivity index (MCI), combining mangrove tidal basin size and the distance to the mangrove edge, affected macrobenthic composition, and compared this effect to sediment properties. In addition, we used structural equation modelling (SEM) and ordination to determine how different environmental predictors directly and indirectly affected macrobenthic communities. MCI strongly affected macrobenthic composition and species abundance, and SEM revealed that this effect contained both a direct component and an indirect component through mudflat NDVI (normalized difference vegetation index, an indicator for microphytobenthos). Sediment properties (grain size, organic matter) affected macrobenthos independently from MCI, nevertheless sediment properties were also affected by MCI. We show the importance of accounting for the seascape structure of tidal basins when investigating the connectivity between mangroves and macrobenthic communities of intertidal mudflats. As benthic macrofauna is a key food source for endangered fish and waders in these systems, our findings provide strong arguments for the integrative conservation of intertidal mudflats and mangroves at the seascape scale.
format	article
author	Kasper J. Meijer El-Hacen M. El-Hacen Laura L. Govers Marc Lavaleye Theunis Piersma Han Olff
author_facet	Kasper J. Meijer El-Hacen M. El-Hacen Laura L. Govers Marc Lavaleye Theunis Piersma Han Olff
author_sort	Kasper J. Meijer
title	Mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system
title_short	Mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system
title_full	Mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system
title_fullStr	Mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system
title_full_unstemmed	Mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system
title_sort	mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/9262e456746949db9dedf4d78f1f2c96
work_keys_str_mv	AT kasperjmeijer mangrovemudflatconnectivityshapesbenthiccommunitiesinatropicalintertidalsystem AT elhacenmelhacen mangrovemudflatconnectivityshapesbenthiccommunitiesinatropicalintertidalsystem AT lauralgovers mangrovemudflatconnectivityshapesbenthiccommunitiesinatropicalintertidalsystem AT marclavaleye mangrovemudflatconnectivityshapesbenthiccommunitiesinatropicalintertidalsystem AT theunispiersma mangrovemudflatconnectivityshapesbenthiccommunitiesinatropicalintertidalsystem AT hanolff mangrovemudflatconnectivityshapesbenthiccommunitiesinatropicalintertidalsystem
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Mangrove-mudflat connectivity shapes benthic communities in a tropical intertidal system

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