Particulate Matter in Mangrove Forests and Seagrass Beds as a Nitrogen Source in Tropical Coastal Ecosystems

Gillis, Lucy Gwen; Bouma, Tjeerd J.; Cathalot, Cécile; Ziegler, Alan D.; Herman, Peter M. J.

doi:10.1111/btp.12220

Cited by 6 publications

(1 citation statement)

References 38 publications

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“…Both mangroves and tidal marshes can act to buffer adjacent seagrasses from the effects of excessive nitrogen coming from the land, by enhancing denitrification and the burial of nitrogen in sediment [62]. Valiela and Cole reviewed the literature on seagrass coverage and persistence in coastal areas exposed to nitrogen run-off and looked for comparative evidence that the presence of adjacent tidal marsh or mangroves mitigated the impacts of this nitrogen on the seagrass [52].…”

Section: Protection Of Seagrasses From Excessive Nitrogenmentioning

confidence: 99%

Carbon in the Coastal Seascape: How Interactions Between Mangrove Forests, Seagrass Meadows and Tidal Marshes Influence Carbon Storage

et al. 2018

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Purpose of Review We use the 'seascape' concept to explore how interactions between mangrove forests, tidal marshes and seagrass influence the storage of carbon in these ecosystems. Mangrove forests, with the other two 'blue carbon' habitats, are exceptionally powerful carbon sinks. Maintaining and enhancing these sinks is an emerging priority in climate change mitigation. However, managing any one ecosystem on its own risks is ignoring important contextual drivers of carbon storage emerging from its place in the seascape. We consider how interactions between these coastal habitats directly or indirectly affect the amounts of carbon they can store. Recent Findings The export of carbon from seagrasses may occur over hundreds or thousands of kilometres, much further than reported for mangroves or tidal marshes. Seagrasses may buffer mangroves from wave impacts, assisting forest regeneration. Trophic cascades supported by contiguous blue carbon habitat may limit excessive herbivory and bioturbation in them but evidence is limited. Summary Direct transfers of carbon between blue carbon habitats are common and are likely to enhance total carbon storage, but our understanding of their contribution to carbon stocks at the seascape level is elementary. There is evidence for indirect enhancement of carbon storage at the seascape by close association of habitats, mostly through the creation and maintenance of propitious conditions by one ecosystem for another. Protection from waves of mangroves by seagrass and protection from excess nutrients and sediment of seagrass by mangroves and tidal marsh are key mechanisms. There is little evidence or theory suggesting negative effects on carbon storage of one blue carbon habitat on another. Keywords Mangrove. Seagrass. Tidal marsh. Carbon. Seascape. Sequestration 'When we try to pick out anything by itself, we find it hitched to everything else in the Universe' (John Muir) My first summer in the Sierra,

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Section: Protection Of Seagrasses From Excessive Nitrogenmentioning

confidence: 99%