Tropical cyclones shape mangrove productivity gradients in the Indian subcontinent

Abstract Recent literature on the impact of cyclones on mangrove forest productivity indicates that nutrient fertilizations aided by tropical cyclones enhance the productivity of mangrove forests. We probe the implications of these predictions in the context of Indian mangroves to propose potential...

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Autores principales:	Dina Nethisa Rasquinha, Deepak R. Mishra
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ba4586c49f68455792ad4676434cf405
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spelling	oai:doaj.org-article:ba4586c49f68455792ad4676434cf4052021-12-02T19:09:31ZTropical cyclones shape mangrove productivity gradients in the Indian subcontinent10.1038/s41598-021-96752-32045-2322https://doaj.org/article/ba4586c49f68455792ad4676434cf4052021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96752-3https://doaj.org/toc/2045-2322Abstract Recent literature on the impact of cyclones on mangrove forest productivity indicates that nutrient fertilizations aided by tropical cyclones enhance the productivity of mangrove forests. We probe the implications of these predictions in the context of Indian mangroves to propose potential future directions for mangrove research in the subcontinent. First, we look at the time series trend (2000–2020) in satellite-derived gross primary productivity (GPP) datasets for seven mangrove forests across the country’s coastline. Second, we compare seasonal changes in soil nutrient levels for a specific site to further the arguments proposed in the literature and investigate the role of potential drivers of mangrove productivity. We find overall increasing trends for GPP over the past two decades for all seven mangrove sites with seasonal fluctuations closely connected to the tropical storm activities for three sites (Bhitarkanika, Pichavaram, and Charao). Additionally, organic carbon and nitrogen levels showed no significant trend, but phosphorus levels were higher during the post-monsoon-winter period for Bhitarkanika. Our findings expand the predictions of previous studies that emphasized the role of storm-induced nutrient fluxes and freshwater supply as primary drivers of productivity gradients in mangroves. Our study provides insights on how mangrove productivity may change with fluctuating frequency and magnitude of cyclones under a changing climate, implying the need for more mechanistic studies in understanding the long-term impact on mangrove productivity in the region.Dina Nethisa RasquinhaDeepak R. MishraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dina Nethisa Rasquinha Deepak R. Mishra Tropical cyclones shape mangrove productivity gradients in the Indian subcontinent
description	Abstract Recent literature on the impact of cyclones on mangrove forest productivity indicates that nutrient fertilizations aided by tropical cyclones enhance the productivity of mangrove forests. We probe the implications of these predictions in the context of Indian mangroves to propose potential future directions for mangrove research in the subcontinent. First, we look at the time series trend (2000–2020) in satellite-derived gross primary productivity (GPP) datasets for seven mangrove forests across the country’s coastline. Second, we compare seasonal changes in soil nutrient levels for a specific site to further the arguments proposed in the literature and investigate the role of potential drivers of mangrove productivity. We find overall increasing trends for GPP over the past two decades for all seven mangrove sites with seasonal fluctuations closely connected to the tropical storm activities for three sites (Bhitarkanika, Pichavaram, and Charao). Additionally, organic carbon and nitrogen levels showed no significant trend, but phosphorus levels were higher during the post-monsoon-winter period for Bhitarkanika. Our findings expand the predictions of previous studies that emphasized the role of storm-induced nutrient fluxes and freshwater supply as primary drivers of productivity gradients in mangroves. Our study provides insights on how mangrove productivity may change with fluctuating frequency and magnitude of cyclones under a changing climate, implying the need for more mechanistic studies in understanding the long-term impact on mangrove productivity in the region.
format	article
author	Dina Nethisa Rasquinha Deepak R. Mishra
author_facet	Dina Nethisa Rasquinha Deepak R. Mishra
author_sort	Dina Nethisa Rasquinha
title	Tropical cyclones shape mangrove productivity gradients in the Indian subcontinent
title_short	Tropical cyclones shape mangrove productivity gradients in the Indian subcontinent
title_full	Tropical cyclones shape mangrove productivity gradients in the Indian subcontinent
title_fullStr	Tropical cyclones shape mangrove productivity gradients in the Indian subcontinent
title_full_unstemmed	Tropical cyclones shape mangrove productivity gradients in the Indian subcontinent
title_sort	tropical cyclones shape mangrove productivity gradients in the indian subcontinent
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ba4586c49f68455792ad4676434cf405
work_keys_str_mv	AT dinanethisarasquinha tropicalcyclonesshapemangroveproductivitygradientsintheindiansubcontinent AT deepakrmishra tropicalcyclonesshapemangroveproductivitygradientsintheindiansubcontinent
_version_	1718377112155455488

Tropical cyclones shape mangrove productivity gradients in the Indian subcontinent

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