HydroBASINS lev08 watershed · #1080704650
Bassin · #1080704650
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 3 administrative regions : Biriniwa, Machina, Nguru
Sub-basin area
720,3km²
Upstream area
28 848,5km²
Discharge
11,2m³/s
Mean elev.
352m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #1080705160617 km²
- Bassin · #108070495011 km²
3 dept-equivalent regions (GADM L2)
- 416.2 km²58.0% of basin
- 232.8 km²32.4% of basin
- 68.6 km²9.6% of basin
7 intersecting protected areas
Bazairam
IUCN Not ReportedForest Reserve
40.02 km² overlap
Gabas Mari
IUCN Not ReportedForest Reserve
24.38 km² overlap
Forest Reserve Name Unknown (NGA) No.5
IUCN Not ReportedForest Reserve
11.66 km² overlap
Barburam
IUCN Not ReportedForest Reserve
7.87 km² overlap
Matsena
IUCN Not ReportedForest Reserve
2.62 km² overlap
Kukangiwa
IUCN Not ReportedForest Reserve
1.01 km² overlap
Azarunikwia
IUCN Not ReportedForest Reserve
0.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
92 distinct species · 704 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 · #1080704650 : 14 espèces reliées par 13 interactions GloBI sur 3 types (connectance 10.8%, 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°
27,2°C
Annual rain
458mm
Moisture idx (CMI)
-0,79
Runoff
5mm/an
PET
2 136mm
AET
384mm
Mean slope
0,0°
Water table
6cm
Forest
0%
Crops
98%
Urban
1%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)