mangrove

mangrove
Name	Mangrove
Kingdom	Plantae
Clade	Angiosperms
Order	Myrtales
Family	Rhizophoraceae, Avicenniaceae, Acanthaceae, Combretaceae
Genus	Rhizophora, Avicennia, Bruguiera, Sonneratia, Ceriops
Species	Multiple species

mangrove Mangrove are woody plants forming intertidal forests found along tropical and subtropical coastlines. They occupy dynamic zones between Pacific Ocean, Atlantic Ocean, Indian Ocean, Gulf of Mexico, Caribbean Sea coastlines and estuaries influenced by rivers such as the Amazon River, Ganges, Mekong River, Nile River, and Yangtze River. These ecosystems interface with human settlements including Bangkok, Jakarta, Mumbai, Miami, and Darwin and are subjects of study by institutions like the Smithsonian Institution, Woods Hole Oceanographic Institution, National Oceanic and Atmospheric Administration, CSIRO, and IUCN.

Description and characteristics

Mangrove plants exhibit specialized morphology including aerial roots, pneumatophores, and salt-excreting leaves that allow survival in saline, anoxic substrates. Botanists from institutions such as the Royal Botanic Gardens, Kew, Missouri Botanical Garden, Royal Society, Linnean Society of London and researchers collaborating with NASA use techniques from Dendrochronology, Remote sensing, Stable isotope analysis, Phylogenetics and Ecophysiology to characterize growth forms. Classic field studies by scientists associated with James Cook University, University of Cambridge, University of Sydney, University of California, Santa Cruz, and University of the Philippines document traits like vivipary, propagule buoyancy, and root pneumatophores that interact with tidal regimes governed by models developed at Scripps Institution of Oceanography and Imperial College London.

Distribution and habitat

Mangrove forests occur across the Caribbean Sea islands, coasts of West Africa, the Red Sea margin, the Persian Gulf, the Bay of Bengal, the South China Sea, and island chains including Madagascar, Philippines, Indonesia, Australia, and the Bahamas. Their distribution is influenced by large-scale processes studied by groups at NOAA, NASA Goddard, European Space Agency, and regional bodies like the Association of Southeast Asian Nations and African Union. Key habitat types include estuaries at river mouths like the Zambezi River Delta, coastal lagoons near Bengal, and deltas such as the Irrawaddy Delta and Ganges-Brahmaputra Delta, where sediment dynamics, sea level changes, and monsoon patterns documented by the Intergovernmental Panel on Climate Change play defining roles.

Ecology and ecosystem services

Mangrove ecosystems provide nursery habitat for commercially important fish and crustaceans exploited in fisheries targeting species managed by agencies such as the Food and Agriculture Organization, NOAA Fisheries, and national authorities of Thailand, Philippines, Brazil, Nigeria, and India. They act as coastal protection against storms and tsunamis similar to events studied after the 2004 Indian Ocean earthquake and tsunami, buffer erosion along shorelines studied by the United States Geological Survey, and sequester carbon relevant to mechanisms under the United Nations Framework Convention on Climate Change and Paris Agreement. Faunal associations link to mammals like those documented in Everglades National Park and birds protected under conventions such as the Ramsar Convention and organizations like BirdLife International.

Species diversity and taxonomy

Taxonomic work separates genera such as Rhizophora (e.g., species described by Carl Linnaeus and later revised by taxonomists at Kew Gardens), Avicennia, Bruguiera, Sonneratia, and Ceriops. Systematists using molecular markers developed in laboratories at Harvard University, University of Oxford, Max Planck Institute for Evolutionary Biology, and University of Tokyo have revealed cryptic diversity, biogeographic patterns, and hybridization. Species lists and conservation assessments are compiled by the IUCN Red List, regional herbariums such as the National Herbarium of the Netherlands, and networks like the Global Biodiversity Information Facility.

Human uses and cultural significance

People living in coastal communities of Bangladesh, Vietnam, Philippines, Indonesia, Brazil, and Kenya rely on mangrove resources for timber, charcoal, traditional medicine, and shellfish gathered for markets monitored by the World Bank and Asian Development Bank. Cultural values feature in folklore and rituals of Indigenous groups including the Moken, Orang Laut, Aeta, Bajau, and coastal communities of West Papua; protection initiatives often involve NGOs like Conservation International, WWF, The Nature Conservancy, and local universities. Economic analyses by the World Resources Institute and policy briefs by the United Nations Environment Programme quantify non-market services provided by mangrove ecosystems.

Threats and conservation

Major threats include conversion to aquaculture and agriculture driven by investors and corporations in sectors subject to regulation by bodies like the World Trade Organization and national ministries in Thailand, Vietnam, Indonesia, Brazil, and India. Additional pressures arise from urban expansion in cities such as Shanghai, Manila, Lagos, Mumbai, and Ho Chi Minh City and from sea level rise assessed in reports by the IPCC and monitored via programs at NOAA and ESA. Conservation responses involve protected areas designated under national laws and international frameworks like the Ramsar Convention and initiatives supported by UNESCO biosphere reserve programs and multilateral funds such as the Global Environment Facility.

Restoration and management strategies

Restoration projects led by partners including The Nature Conservancy, Wetlands International, Blue Ventures, Mangrove Action Project, universities, and local governments employ techniques like assisted natural regeneration, species-specific planting informed by research from James Cook University and University of the Philippines, hydrological engineering guided by UN-Habitat, and community-based management models studied in casework from Sri Lanka, Mozambique, Belize, and Cuba. Monitoring uses satellite platforms like Landsat, Sentinel-2, and tools from Google Earth Engine to assess survival, carbon stocks for programs under REDD+, and socio-ecological outcomes reported to donors such as the World Bank and regional development banks.

Category:Mangrove ecosystems