A global biophysical typology of mangroves and its relevance for ecosystem structure and deforestation

Thomas A. Worthington*, Philine S.E. zu Ermgassen, Daniel A. Friess, Ken W. Krauss, Catherine E. Lovelock, Julia Thorley, Rick Tingey, Colin D. Woodroffe, Pete Bunting, Nicole Cormier, David Lagomasino, Richard Lucas, Nicholas J. Murray, William J. Sutherland, Mark Spalding

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
6 Downloads (Pure)

Abstract

Mangrove forests provide many ecosystem services but are among the world’s most threatened ecosystems. Mangroves vary substantially according to their geomorphic and sedimentary setting; while several conceptual frameworks describe these settings, their spatial distribution has not been quantified. Here, we present a new global mangrove biophysical typology and show that, based on their 2016 extent, 40.5% (54,972 km2) of mangrove systems were deltaic, 27.5% (37,411 km2) were estuarine and 21.0% (28,493 km2) were open coast, with lagoonal mangroves the least abundant (11.0%, 14,993 km2). Mangroves were also classified based on their sedimentary setting, with carbonate mangroves being less abundant than terrigenous, representing just 9.6% of global coverage. Our typology provides a basis for future research to incorporate geomorphic and sedimentary setting in analyses. We present two examples of such applications. Firstly, based on change in extent between 1996 and 2016, we show while all types exhibited considerable declines in area, losses of lagoonal mangroves (− 6.9%) were nearly twice that of other types. Secondly, we quantify differences in aboveground biomass between mangroves of different types, with it being significantly lower in lagoonal mangroves. Overall, our biophysical typology provides a baseline for assessing restoration potential and for quantifying mangrove ecosystem service provision.

Original languageEnglish
Article number14652
Pages (from-to)1-11
Number of pages11
JournalScientific Reports
Volume10
DOIs
Publication statusPublished - 4 Sep 2020

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Copyright the Author(s) 2020. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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