Nature and climate intelligence, from the data to the decision
30,001 mapped features and 23,095 observations from 13 datasets, harmonised to one set of units, with every number traceable to its source.
Explore Atlas by theme
Mangroves are where Atlas starts. The same platform holds the pressures, places and projects around them for Seychelles.
The seascape at a glance
Live from Atlas’ own databaseMangrove formations map
Pan and zoom; click a polygon for its area and source
Area by formation
Share of mapped hectares
Landscape science
Computed, reproducible measures (see Methodologies)Fragmentation
How broken up is the canopy?
- Patches
- 741
- Median / mean patch
- 0.176 / 2.23 ha
- Effective mesh size
- 106.7 ha
- Largest patch index
- 15.6% of area
- Patch-size exponent α
- 1.77
Spatial clustering
Moran’s I and Getis-Ord Gi* on a 5 km grid
Mangrove area is significantly clustered. 8 hot-spot and 0 cold-spot cells.
Spatial analysisThemes
Where Atlas has data, and where it is still emptyWhat the analysis says
Top recommendations from the intelligence engineAsk the analyst
Plain-English questions, answered with real calculations
Datasets in Atlas
13 datasets from 4 sources — grouped by where they come fromGlobal Mangrove Watch v4.1
Global Mangrove Watch (Aberystwyth University, soloEO, Wetlands International, UNEP-WCMC, JAXA) · 7 datasets · 4,775 features
| Global Mangrove Watch v4.1: mangrove extent 2025, Seychelles Mangroves · v1 |
721 features | |
| Global Mangrove Watch v4.1: mangrove extent 2020, Seychelles Mangroves · v1 |
741 features | |
| Global Mangrove Watch v4.1: mangrove extent 2015, Seychelles Mangroves · v1 |
703 features | |
| Global Mangrove Watch v4.1: mangrove extent 2010, Seychelles Mangroves · v1 |
648 features | |
| Global Mangrove Watch v4.1: mangrove extent 2005, Seychelles Mangroves · v1 |
645 features | |
| Global Mangrove Watch v4.1: mangrove extent 2000, Seychelles Mangroves · v1 |
645 features | |
| Global Mangrove Watch v4.1: mangrove extent 1996, Seychelles Mangroves · v1 |
672 features |
WWF Kenya Sources: GIS Centre of Excellence
WWF Kenya · 4 datasets · 25,211 features
| polygons Protected Areas & Landscapes · v1 |
11 features | |
| Fibre Cable Landing Stations Roads, Rail & Infrastructure · v1 |
126 features | |
| Small airport Roads, Rail & Infrastructure · v1 |
1,979 features | |
| Irrigated Areas Water & Catchments · v1 |
23,095 features |
UNEP-WCMC global seagrass and saltmarsh layers
UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC) and Short FT · 1 datasets · 14 features
| Seagrass (UNEP-WCMC): Seychelles Seagrass · v1 |
14 features |
UNDP project data (IATI Registry)
United Nations Development Programme (UNDP) · 1 datasets · 1 features
| Community and nature projects (UNDP): Seychelles Community Projects · v1 |
1 features |
Data health
The ten lowest-scoring datasets and the local archiveQuality scorecard
Geometry, provenance, flags, duplicates, verification and licence
| Seagrass (UNEP-WCMC): Seychelles | 90 | |
| Community and nature projects (UNDP): Seychelles | 90 | |
| polygons | 95 | |
| Fibre Cable Landing Stations | 95 | |
| Small airport | 95 | |
| Irrigated Areas | 95 | |
| Global Mangrove Watch v4.1: mangrove extent 2025, Seychelles | 100 | |
| Global Mangrove Watch v4.1: mangrove extent 2020, Seychelles | 100 | |
| Global Mangrove Watch v4.1: mangrove extent 2015, Seychelles | 100 | |
| Global Mangrove Watch v4.1: mangrove extent 2010, Seychelles | 100 |
Local archive
Atlas runs from its own copy
- Last import
- 14 Oct 2026, 15:38
- Snapshots kept
- 1
- Units
- ha · m · % · UTC · WGS 84
- Sources online?
- Not needed. Atlas serves everything from its own database.