Mangroves play a vital role in the health of coastal ecosystems , acting as carbon sinks, storm barriers, and refuges for a vast array of biodiversity. Despite their immense ecological and social value, these habitats face increasing threats that endanger not only their existence but also the livelihoods of the communities that depend on them.
On July 26, various organizations and institutions dedicate a special day to reflecting on and taking action for the protection of mangroves . This date highlights the need to address the challenges affecting them and to promote solutions from different sectors and regions.
Why are mangroves so valuable?
Composed of trees and shrubs adapted to saline and flood-prone environments , mangroves establish a network of roots that protects the coastal soil and fosters the development of numerous species. Among their most important functions are:
- Defense against extreme weather events: The roots and foliage of mangroves reduce the force of hurricanes, storms, and tsunamis, minimizing erosion and protecting nearby communities.
- Carbon storage: these ecosystems capture and store large amounts of carbon, helping to mitigate the effects of climate change.
- Support for biodiversity: They serve as habitat and breeding grounds for fish, crabs, birds and endangered species, as well as providing food and shelter for terrestrial and marine animals.
- Water treatment: The roots filter out pollutants, helping to maintain water quality in coasts, rivers and lagoons.
Their importance is recognized worldwide, from the Florida marshes and Marajó Island in Brazil to Mexican, Asian, and African reserves. More than 120 countries have mangroves along their coastlines.
Threats such as deforestation, aquaculture and pollution are reducing these ecosystems.
Despite their importance, mangroves are disappearing at an alarming rate . It is estimated that more than 35% of these ecosystems have been lost in just two decades. Among the factors that explain this trend are:
- Expansion of aquacultureThe conversion of mangrove forests into shrimp farms has resulted in the loss of thousands of hectares, especially in tropical regions of Asia and Latin America. The resulting ponds often leave toxic waste and, when depleted, result in barren areas that are difficult to recover.
- Habitat loss due to construction and infrastructure: The construction of roads and urban developments drastically alters the hydrological and ecological cycles that sustain mangroves.
- Climate change and rising sea levels: Rising salinity, persistent flooding, and extreme weather events are damaging mangroves in vulnerable areas such as Bangladesh, the Sundarbans, and the Florida coast, where birds like roseate spoonbills have seen their habitat reduced.
- Pollution, especially from plastics and wasteThese pollutants become trapped in the roots, affecting not only the flora and fauna but also the people who depend on fishing and other local resources.
- Unsustainable fishing and harvesting: Techniques such as trawling cause accidental catches and damage to the seabed, affecting the natural regeneration of the mangrove.
Photography as a tool for awareness
Initiatives like the International Mangrove Photography Awards have gained momentum in recent years, helping to highlight both the extraordinary biodiversity of these ecosystems and the dangers they face. Award-winning photographs showcase everything from the rich fauna —crocodiles, crabs, monkeys, and iconic birds—to the devastation caused by pollution and the shrimp farming industry.
The competition has received images from more than 70 countries, and according to its organizers, photography helps connect people with nature and promote conservation efforts . Portraits of women harvesting honey in the Sundarbans or of children playing among mangrove roots reflect the close relationship between mangroves and local communities.
Inspiring experiences in restoration and conservation
Protecting and restoring mangroves requires collaborative work between governments, the private sector, communities, and science. Numerous success stories exist:
- En BrazilThe Soure Marine Extractive Reserve on Marajó Island has successfully integrated climate monitoring technology, community participation, and international standards, becoming the first protected area in the country to obtain IUCN Green List certification.
- The Tech4Nature project, a partnership between IUCN and Huawei, has provided communities with technological tools to monitor climate and biodiversity data, and fosters the environmental education between young people and local fishermen.
- En MexicoThe work of groups like Las Chelemeras in Yucatán has restored the water flow and topography of hundreds of hectares of mangroves, gradually restoring local fauna and hydrological balance. This work, supported by scientific institutes and organizations like The Nature Conservancy, seeks to make restoration a collective and participatory process.
- International projects such as Blue Natural Heritage In Panama, developed by the National Audubon Society and other partners, they have combined science, education, and policy to promote the protection and sustainable management of mangroves.
Mangroves in figures and most representative types
Currently, Mexico is home to approximately 6% of the world's mangroves , ranking fourth globally, behind only Indonesia, Australia, and Brazil. Among the best-known species are:
- Red mangrove (Rhizophora mangle):characterized by its stilt-like aerial roots.
- White mangrove (Laguncularia racemosa): with tabular roots and presence on the coasts of the Pacific and Gulf of Mexico.
- Dark mangrove (Avicennia germinans): essential to protect wildlife and control tides.
- Buttonmangrove (Conocarpus erectus): common on the Mexican coasts, especially in Yucatan.
These types of mangroves form complex systems where fish, birds, mammals, reptiles, and crustaceans coexist. The maintenance and diversity of species directly depends on the conservation status of the ecosystem.
Global and local commitment to the survival of mangroves
Mangrove conservation is not just an environmental issue. It is also social, economic, and cultural. Many communities depend on mangroves for fishing, tourism, and resource gathering, so protecting them means defending ancestral ways of life and traditions.
Actions such as collecting signatures, promoting sustainable fishing practices, and reducing plastic use are accessible steps for citizens. International and local organizations emphasize that even small actions can make a difference in protecting this valuable natural heritage.
The integration of technology, science, and local knowledge is enabling the recovery of lost mangroves and preventing future destruction. Community participation is proving to be the essential driving force for the sustainable and resilient management of these coastal ecosystems.
Around the world, mangroves are emerging as an essential link between land and sea, connecting communities, protecting resources, and offering hope in the face of climate change. Their future depends on collective action and the active defense of nature in every corner of the planet.
