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Changes in Mangrove Cover and Exposure to Coastal Hazards in Kenya

Author

Listed:
  • Amina Juma Hamza

    (Department of Life and Environmental Sciences, Bournemouth University, Talbot Campus, Poole BH12 5BB, UK
    Department of Oceanography and Hydrography, Kenya Marine and Fisheries Research Institute, Mombasa P.O. Box 81651-80100, Kenya)

  • Luciana S. Esteves

    (Department of Life and Environmental Sciences, Bournemouth University, Talbot Campus, Poole BH12 5BB, UK)

  • Marin Cvitanović

    (Department of Life and Environmental Sciences, Bournemouth University, Talbot Campus, Poole BH12 5BB, UK)

Abstract

Mangroves are effective carbon sinks, support coastal fisheries and provide wood and non-wood resources to coastal communities. They are threatened by natural and human-induced stresses including over-exploitation, conversion pressures, pollution and climate change. Understanding changes in this important ecosystem is essential to inform the sustainable management of mangroves and assess the implications related to the loss of ecosystem services. This study used global remote sensing mangrove forest data to quantify changes in mangrove cover in Kenya between 2010 and 2016 and applied the InVEST coastal vulnerability model to assess the implications concerning the provision of natural coastal protection services in Kenya. The results indicate that the annual rates of mangrove cover loss in Kenya were 0.15% between 2010 and 2016. Currently, 16% of the Kenyan coastline is at higher levels of exposure to coastal hazards but this could increase to 41% if coastal ecosystems (mangroves, corals and seagrasses) are lost. The study further identified that higher rates of mangrove loss are observed in areas at higher risk of exposure in the southern and northern counties of Kwale and Lamu, where monitoring and management efforts should be prioritized.

Suggested Citation

  • Amina Juma Hamza & Luciana S. Esteves & Marin Cvitanović, 2022. "Changes in Mangrove Cover and Exposure to Coastal Hazards in Kenya," Land, MDPI, vol. 11(10), pages 1-13, October.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:10:p:1714-:d:932343
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    References listed on IDEAS

    as
    1. Katie K. Arkema & Greg Guannel & Gregory Verutes & Spencer A. Wood & Anne Guerry & Mary Ruckelshaus & Peter Kareiva & Martin Lacayo & Jessica M. Silver, 2013. "Coastal habitats shield people and property from sea-level rise and storms," Nature Climate Change, Nature, vol. 3(10), pages 913-918, October.
    2. Nibedita Mukherjee & Jean Huge & Farid Dahdouh-Guebas & Nico Koedam, 2014. "Ecosystem service valuations of mangrove ecosystems to inform decision making and future valuation exercises," ULB Institutional Repository 2013/217963, ULB -- Universite Libre de Bruxelles.
    3. Nibedita Mukherjee & William J Sutherland & Lynn Dicks & Jean Hugé & Nico Koedam & Farid Dahdouh-Guebas, 2014. "Ecosystem Service Valuations of Mangrove Ecosystems to Inform Decision Making and Future Valuation Exercises," PLOS ONE, Public Library of Science, vol. 9(9), pages 1-9, September.
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