HydroBASINS lev08 watershed · #1080850980
Bassin · #1080850980
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 6 administrative regions : Abaji, Agaie, Gurara, Katcha, Lapai +1
Sub-basin area
2 012,4km²
Upstream area
2 012,4km²
Discharge
24,28m³/s
Mean elev.
239m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 630.6 km²31.5% of basin
- 352.2 km²17.6% of basin
- 351.4 km²17.5% of basin
- 322.9 km²16.1% of basin
- 249.9 km²12.5% of basin
- 97.0 km²4.8% of basin
3 intersecting protected areas
Anfani
IUCN Not ReportedForest Reserve
62.84 km² overlap
Bonu
IUCN Not ReportedForest Reserve
35.29 km² overlap
Ewun Rafia
IUCN Not ReportedForest Reserve
16.64 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
228 distinct species · 960 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Bassin · #1080850980 : 22 espèces reliées par 19 interactions GloBI sur 3 types (connectance 6.3%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
27,3°C
Annual rain
1 240mm
Moisture idx (CMI)
-0,33
Runoff
383mm/an
PET
1 857mm
AET
937mm
Mean slope
1,5°
Water table
119cm
Forest
5%
Crops
23%
Urban
2%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)