Wetland of International Importance (Ramsar Site) · CMR
Lac Tchad
- Area
- 2 153 km²
- IUCN cat.
- IV
- Year
- 2008
Overview
- Designation
- Wetland of International Importance (Ramsar Site)
- IUCN category
- IV · Aire d'habitats / espèces
Gestion active pour maintenir habitats / espèces particuliers
- Established
- 2008
- Managing authority
- Not Reported
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
234 distinct species · 860 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Lac Tchad : 6 espèces reliées par 9 interactions GloBI sur 2 types (connectance 20.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology8 basins · 1 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
29,0km
Lake surface here
1 810,72km²
Basins crossed
8
Max stream order
8
Max drainage
609 864km²
Discharge in basins
487,9m³/s
Mean precip.
359mm/an
Mean T°
27,4°C
Moisture idx
-0,83
Mean runoff
58mm/an
Mean elev. (basins)
284m
Watersheds crossing here
- Basin #95540sub-area2 003,3 km²overlap1512.66 km²70%
- Bassin de Charisub-area939 km²overlap234.17 km²11%
- Bassin de El Béidsub-area832,3 km²overlap151.65 km²7%
- Bassin de Chari شاريsub-area499,5 km²overlap151.57 km²7%
- Basin #93080sub-area1 028,4 km²overlap69.22 km²3%
- Basin #07270sub-area567,7 km²overlap17.53 km²1%
- Basin #95300sub-area385,3 km²overlap12.31 km²1%
- Basin #95700sub-area60,4 km²overlap3.79 km²0%
Lakes (1, top by area)
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 12.77541, 14.34186
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.