HydroBASINS lev08 watershed · #1080966340
Bassin de Manzan
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 : Bia West, Indénié-Djuablin
Sub-basin area
751,9km²
Upstream area
2 527,2km²
Discharge
21,53m³/s
Mean elev.
168m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080956370417 km²
- Bassin de Niablé8 km²
2 dept-equivalent regions (GADM L2)
- 604.3 km²80.7% of basin
- 144.5 km²19.3% of basin
6 intersecting protected areas
Diambarakrou
IUCN Not ReportedClassified Forest
114.75 km² overlap
Sukusuki
IUCN VIForest Reserve
107.05 km² overlap
Natural Reserve
62.60 km² overlap
Bia National Park
IUCN IINational Park
29.05 km² overlap
Bia Resource Reserve
IUCN VIResource Reserve
28.26 km² overlap
Bia National Park
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
24.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
209 distinct species · 396 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Manzan : 20 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 15 interactions GloBI sur 4 types (connectance 6.5%, filtre Serrano α=0.2). 2 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°
26,5°C
Annual rain
1 383mm
Moisture idx (CMI)
-0,17
Runoff
310mm/an
PET
1 657mm
AET
1 166mm
Mean slope
2,4°
Water table
109cm
Forest
11%
Crops
8%
Urban
1%
Protected
38%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)