Atlas · Republic of the Congo
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ATLAS REPORT
Mangrove ecosystem report: Republic of the Congo
Generated 15 October 2026, 13:56 from live Atlas data
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Executive summary
Atlas holds 297,487 mapped features and 294,959 observations in 91 datasets. The mapped mangrove canopy covers 3,000 ha in 913 polygons across 1 formation classes; Mangrove dominates with 100.0% of the area. The median patch is only 0.178 ha, while patches of 10 ha or more hold 80.2% 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 | 913 | 3,000.0 | 100.0% | 3.29 |
Shannon evenness by area: 0.00
Fragmentation & landscape metrics
- Patches
- 913
- Mean / median / largest
- 3.29 / 0.178 / 714.4 ha
- Effective mesh size
- 302.8 ha
- Largest patch index
- 23.8%
- Power-law exponent α
- 1.65
Spatial clustering
Global Moran’s I = -0.168 (z = -1.1, p = 0.260). Hot-spot cells (Gi*, ≥95%): 0; cold-spot cells: 0.
| Top hot-spot cell | Polygons | Area (ha) | Gi* z |
|---|---|---|---|
| -4, 11.25 | 68 | 77 | 1.72 |
| -4.05, 11.2 | 11 | 30 | 1.42 |
| -4, 11.2 | 1 | 20 | 1.42 |
| -4.45, 11.65 | 30 | 94 | 1.39 |
| -4.5, 11.65 | 2 | 0 | 1.39 |
| -4, 11.3 | 70 | 47 | 1.20 |
Methods & limits
Areas and lengths are recomputed on the WGS 84 ellipsoid; units are harmonised (ha, m, %, UTC). The mapping is a single 2019 epoch; the source publishes no licence; field plots are a sample; scenario figures are illustrative assumptions. Cite the original publishers listed above. Full methods: Methodologies page.