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Bridging conservation and policy: evaluating national capacity to reduce mangrove loss under the Kunming-Montreal Biodiveristy Framework

Bridging conservation and policy: evaluating national capacity to reduce mangrove loss under the Kunming-Montreal Biodiveristy Framework
Bridging conservation and policy: evaluating national capacity to reduce mangrove loss under the Kunming-Montreal Biodiveristy Framework
The Kunming-Montreal Global Biodiversity Framework (GBF) aims to halt biodiversity loss by 2030, with Targets 1 and 3 focusing on reducing forest loss and expanding protected areas. Mangroves, as biodiversity hotspots offering crucial ecosystem services, have seen some conservation gains, yet key drivers of high-value mangrove loss remain unaddressed in intergovernmental policy frameworks. It is the first global assessment linking GBF Targets 1 & 3 to mangrove loss drivers and ecosystem assessment. We apply an interdisciplinary approach—combining global-scale geospatial analysis of mangrove loss trajectories between 2000 and 2016 and ecosystem value distribution, and thematic policy analysis. We classify all 120 countries where mangroves are present by their short- and long-term mangrove loss management strategies and evaluate the inclusion of relevant actions under Targets 1 and 3 of National Biodiversity Strategies and Action Plans (NBSAPs). Between 2000 and 2016, 78% of mangrove loss occurred in areas rich in biodiversity, biomass, and coastal protection, mostly outside protected zones. Of 120 mangrove-holding countries, 30 (25%) experienced significant loss. Among them, 11 have the potential to implement short-term mitigation by expanding or managing protected areas, though only 5 included these strategies in national targets. Four countries referenced broader measures like indigenous rights and the prioritisation of ecosystem service hotspots. Only Cameroon, Colombia, Gabon, Panama, and Tanzania are positioned to address major loss drivers within the GBF timeline. This paper is the first global assessment of GBF-aligned national targets to mitigate mangrove loss, contributing to SDGs 14 and 15. We show that mangrove loss cannot be halted by 2030 under the current level of national targets. Policy amendments at national scales can include short-term (area-based protection) and long-term strategies (restoration, rehabilitation and ecosystem-based approaches) to halt mangrove loss.
1748-9326
Gajre, Radhika B.
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Barchiesi, Stephano
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Friess, Daniel A.
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Lang, Duncan
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Lee, Yoon K.
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Lim, Hui Koon
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Muhammad, Nasry
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Peh, Kelvin S.-H.
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Ochavo, Grace C.
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Pina-Covarrubias, Evelyn
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Rege, Anushka
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Yong, Ding Li
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Zeng, Yiwen
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Tang, Hao
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Gajre, Radhika B.
6f73a3e8-1fa3-465b-8eda-b2c0c3a49ea8
Barchiesi, Stephano
1c4fc6aa-d13f-4b33-83ce-db6b22e0a038
Friess, Daniel A.
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Lang, Duncan
38879de2-f2be-46cc-9bf7-a62aa87b26c6
Lee, Yoon K.
fcd21362-c2b2-4637-8e63-1bda1b295a42
Lim, Hui Koon
69b10c8a-40ef-44b9-9f50-157d9a95ef23
Muhammad, Nasry
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Peh, Kelvin S.-H.
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Ochavo, Grace C.
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Pina-Covarrubias, Evelyn
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Rege, Anushka
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Yong, Ding Li
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Zeng, Yiwen
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Tang, Hao
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Gajre, Radhika B., Barchiesi, Stephano, Friess, Daniel A., Lang, Duncan, Lee, Yoon K., Lim, Hui Koon, Muhammad, Nasry, Peh, Kelvin S.-H., Ochavo, Grace C., Pina-Covarrubias, Evelyn, Rege, Anushka, Yong, Ding Li, Zeng, Yiwen and Tang, Hao (2025) Bridging conservation and policy: evaluating national capacity to reduce mangrove loss under the Kunming-Montreal Biodiveristy Framework. Environmental Research Letters. (doi:10.1088/1748-9326/ae1150).

Record type: Article

Abstract

The Kunming-Montreal Global Biodiversity Framework (GBF) aims to halt biodiversity loss by 2030, with Targets 1 and 3 focusing on reducing forest loss and expanding protected areas. Mangroves, as biodiversity hotspots offering crucial ecosystem services, have seen some conservation gains, yet key drivers of high-value mangrove loss remain unaddressed in intergovernmental policy frameworks. It is the first global assessment linking GBF Targets 1 & 3 to mangrove loss drivers and ecosystem assessment. We apply an interdisciplinary approach—combining global-scale geospatial analysis of mangrove loss trajectories between 2000 and 2016 and ecosystem value distribution, and thematic policy analysis. We classify all 120 countries where mangroves are present by their short- and long-term mangrove loss management strategies and evaluate the inclusion of relevant actions under Targets 1 and 3 of National Biodiversity Strategies and Action Plans (NBSAPs). Between 2000 and 2016, 78% of mangrove loss occurred in areas rich in biodiversity, biomass, and coastal protection, mostly outside protected zones. Of 120 mangrove-holding countries, 30 (25%) experienced significant loss. Among them, 11 have the potential to implement short-term mitigation by expanding or managing protected areas, though only 5 included these strategies in national targets. Four countries referenced broader measures like indigenous rights and the prioritisation of ecosystem service hotspots. Only Cameroon, Colombia, Gabon, Panama, and Tanzania are positioned to address major loss drivers within the GBF timeline. This paper is the first global assessment of GBF-aligned national targets to mitigate mangrove loss, contributing to SDGs 14 and 15. We show that mangrove loss cannot be halted by 2030 under the current level of national targets. Policy amendments at national scales can include short-term (area-based protection) and long-term strategies (restoration, rehabilitation and ecosystem-based approaches) to halt mangrove loss.

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Bhargava+Gajre+et+al_2025_Environ._Res._Lett._10.1088_1748-9326_ae1150 - Accepted Manuscript
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Submitted date: 5 June 2025
Accepted/In Press date: 9 October 2025
Published date: 10 October 2025

Identifiers

Local EPrints ID: 505558
URI: http://eprints.soton.ac.uk/id/eprint/505558
ISSN: 1748-9326
PURE UUID: 45ed50ef-a3a2-4957-91bc-00b059ca6423
ORCID for Kelvin S.-H. Peh: ORCID iD orcid.org/0000-0002-2921-1341

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Date deposited: 13 Oct 2025 17:02
Last modified: 14 Oct 2025 01:47

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Contributors

Author: Radhika B. Gajre
Author: Stephano Barchiesi
Author: Daniel A. Friess
Author: Duncan Lang
Author: Yoon K. Lee
Author: Hui Koon Lim
Author: Nasry Muhammad
Author: Grace C. Ochavo
Author: Evelyn Pina-Covarrubias
Author: Anushka Rege
Author: Ding Li Yong
Author: Yiwen Zeng
Author: Hao Tang

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