HydroBASINS lev08 watershed · #1080932700
Bassin de Boan
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 2 administrative regions across 2 countries : Lola, Tonkpi
Sub-basin area
680,7km²
Upstream area
680,7km²
Discharge
19,61m³/s
Mean elev.
385m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 672.8 km²99.3% of basin
- 5.0 km²0.7% of basin
1 intersecting protected areas
Tiapleu
IUCN Not ReportedClassified Forest
120.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
414 distinct species · 718 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 de Boan : 17 espèces reliées par 12 interactions GloBI sur 3 types (connectance 7.8%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
24,8°C
Annual rain
1 987mm
Moisture idx (CMI)
0,05
Runoff
848mm/an
PET
1 881mm
AET
1 319mm
Mean slope
3,8°
Water table
129cm
Forest
9%
Crops
3%
Urban
4%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)