Full scientific report: Mauritania
Generated 13 November 2026, 03:16 from live Atlas data
Executive summary
Atlas holds 78,752 mapped features and 37,972 observations in 25 datasets. The mapped mangrove canopy covers 219 ha in 67 polygons across 1 formation classes; Mangrove dominates with 100.0% of the area. The median patch is only 0.430 ha, while patches of 10 ha or more hold 72.9% of the area. 0 ha (0.0%) lies within 10 km of the LAPSSET development footprint.
Single mapping epoch (2019). Areas are geodesic hectares recalculated from geometry.
Species & formations
| Formation | Polygons | Area (ha) | Share | Mean patch (ha) |
|---|---|---|---|---|
| Mangrove | 67 | 218.7 | 100.0% | 3.26 |
Fragmentation & landscape metrics
- Patches
- 67
- Mean / median / largest
- 3.26 / 0.430 / 63.5 ha
- Effective mesh size
- 34.9 ha
- Largest patch index
- 29.0%
- Power-law exponent α
- 1.67
Spatial clustering
Global Moran’s I = 0.106 (z = 0.9, p = 0.373). Hot-spot cells (Gi*, ≥95%): 0; cold-spot cells: 0.
| Top hot-spot cell | Polygons | Area (ha) | Gi* z |
|---|---|---|---|
| 16.1, -16.45 | 1 | 64 | 1.94 |
| 16.05, -16.5 | 22 | 53 | 1.76 |
| 16.1, -16.5 | 12 | 49 | 1.16 |
| 16.05, -16.55 | 1 | 0 | 0.95 |
| 16.3, -16.45 | 13 | 35 | 0.53 |
| 16.3, -16.5 | 5 | 3 | 0.53 |
Pressure: LAPSSET and villages
Mangrove ha by distance from LAPSSET
Mangrove ha by distance from villages
Data quality
| Dataset | Features | Repaired | Score |
|---|---|---|---|
| Global Mangrove Watch: mangrove extent 2020, Mauritania | 105 | 0 | 100 |
| Global Mangrove Watch: mangrove extent 1996, Mauritania | 264 | 0 | 100 |
| Global Mangrove Watch: mangrove extent 2007, Mauritania | 178 | 0 | 100 |
| Global Mangrove Watch: mangrove extent 2010, Mauritania | 176 | 0 | 100 |
| Global Mangrove Watch: mangrove extent 2015, Mauritania | 151 | 0 | 100 |
| Global Mangrove Watch v4.1: mangrove extent 2025, Mauritania | 83 | 0 | 100 |
| Global Mangrove Watch v4.1: mangrove extent 2020, Mauritania | 67 | 0 | 100 |
| Global Mangrove Watch v4.1: mangrove extent 2015, Mauritania | 64 | 0 | 100 |
| Global Mangrove Watch v4.1: mangrove extent 2010, Mauritania | 67 | 0 | 100 |
| Global Mangrove Watch v4.1: mangrove extent 2005, Mauritania | 32 | 0 | 100 |
| Global Mangrove Watch v4.1: mangrove extent 2000, Mauritania | 22 | 0 | 100 |
| Global Mangrove Watch v4.1: mangrove extent 1996, Mauritania | 11 | 0 | 100 |
| West Africa | 1 | 0 | 95 |
| Fibre Cable Landing Stations | 126 | 0 | 95 |
| Power Plants (Power output MW) | 642 | 0 | 95 |
| Small airport | 1,979 | 0 | 95 |
| Dams | 2,586 | 0 | 95 |
| Districts | 6,099 | 13 | 95 |
| World Database on Protected Areas | 7,438 | 1 | 95 |
| Electricity Transmission Network | 9,759 | 0 | 95 |
| Irrigated Areas | 23,095 | 1 | 95 |
| Agro-Ecological Zones | 25,791 | 17 | 95 |
| Seagrass (UNEP-WCMC): Mauritania | 9 | 0 | 90 |
| Salt marsh (UNEP-WCMC): Mauritania | 3 | 0 | 90 |
| Community and nature projects (UNDP): Mauritania | 4 | 0 | 90 |
Recommendations
Datasets & sources
| Dataset | Publisher | Features |
|---|---|---|
| Global Mangrove Watch: mangrove extent 2020, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 105 |
| Global Mangrove Watch: mangrove extent 1996, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 264 |
| Global Mangrove Watch: mangrove extent 2007, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 178 |
| Global Mangrove Watch: mangrove extent 2010, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 176 |
| Global Mangrove Watch: mangrove extent 2015, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 151 |
| Global Mangrove Watch v4.1: mangrove extent 2025, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 83 |
| Global Mangrove Watch v4.1: mangrove extent 2020, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 67 |
| Global Mangrove Watch v4.1: mangrove extent 2015, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 64 |
| Global Mangrove Watch v4.1: mangrove extent 2010, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 67 |
| Global Mangrove Watch v4.1: mangrove extent 2005, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 32 |
| Global Mangrove Watch v4.1: mangrove extent 2000, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 22 |
| Global Mangrove Watch v4.1: mangrove extent 1996, Mauritania | Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) | 11 |
| West Africa | WWF Kenya | 1 |
| Fibre Cable Landing Stations | WWF Kenya | 126 |
| Power Plants (Power output MW) | WWF Kenya | 642 |
| Small airport | WWF Kenya | 1,979 |
| Dams | WWF Kenya | 2,586 |
| Districts | WWF Kenya | 6,099 |
| World Database on Protected Areas | WWF Kenya | 7,438 |
| Electricity Transmission Network | WWF Kenya | 9,759 |
| Irrigated Areas | WWF Kenya | 23,095 |
| Agro-Ecological Zones | WWF Kenya | 25,791 |
| Seagrass (UNEP-WCMC): Mauritania | UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC) and Short FT | 9 |
| Salt marsh (UNEP-WCMC): Mauritania | UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC) and Short FT | 3 |
| Community and nature projects (UNDP): Mauritania | United Nations Development Programme (UNDP) | 4 |