HydroBASINS lev08 watershed · #1081626870
Bassin de Okula
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 1 administrative regions : Uthungulu
Sub-basin area
835,6km²
Upstream area
835,8km²
Discharge
8,31m³/s
Mean elev.
141m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 834.5 km²100.0% of basin
1 intersecting protected areas
Enseleni Nature Reserve
IUCN Not ReportedNature Reserve
3.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 319 distinct species · 47 290 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 Okula : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 3 types (connectance 8.1%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
21,3°C
Annual rain
1 033mm
Moisture idx (CMI)
-0,26
Runoff
308mm/an
PET
1 389mm
AET
875mm
Mean slope
4,1°
Water table
301cm
Forest
52%
Crops
17%
Urban
7%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)