GoKawiilStudy of 400 coastal sites links mangrove presence to wave exposure
Researchers analyzed 20 years of three-hourly wave data at 400 sites worldwide, split evenly between coastlines with and without mangroves, drawing on Global Mangrove Watch records and 2025 satellite imagery. The sites were chosen to represent mangroves' full latitudinal range while excluding locations shielded by dunes, reefs close enough to block wave models, or heavily developed shorelines. Wave conditions came from the EU Copernicus Marine Service's Global Ocean Waves Reanalysis dataset.
GoKawiil's interpretation of the reporting above, not reported fact.
By controlling for climate and shoreline development, the methodology suggests wave energy itself may be a key factor determining whether mangroves establish along open coasts, rather than just temperature or sediment type. This could inform coastal restoration and climate adaptation planning, since identifying wave thresholds might help predict where mangrove planting efforts are likely to succeed. The approach also highlights how satellite imagery and long-term reanalysis datasets can be combined to test large-scale ecological patterns.
- The study examined 400 global sites, half with open-coast mangroves and half without, using 20 years of wave data.
- Site selection excluded mangroves sheltered by dunes or nearby reefs and non-mangrove sites with human-altered shorelines.
- Wave data came from the EU Copernicus Marine Service's Global Ocean Waves Reanalysis at three-hour resolution.
Source: nature.com — Wells, 2026-09-30
Published there as: “Global mangrove distribution on the open coast is controlled by waves”
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