HydroBASINS lev08 watershed · #1081072790
Bassin de Ara River
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 across 2 countries : Aru, Aru (ville), Jonam, Kilak, Madi-Okollo +1
Sub-basin area
1 017,3km²
Upstream area
1 017,5km²
Discharge
4,6m³/s
Mean elev.
886m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 613.9 km²60.6% of basin
- 391.0 km²38.6% of basin
- 5.8 km²0.6% of basin
- 1.8 km²0.2% of basin
- 0.2 km²0.0% of basin
- 0.0 km²0.0% of basin
10 intersecting protected areas
Ajai
IUCN IIIWildlife Reserve
123.13 km² overlap
Luku
IUCN Not ReportedForest Reserve
39.96 km² overlap
Laura
IUCN Not ReportedForest Reserve
14.49 km² overlap
Ave
IUCN Not ReportedForest Reserve
7.83 km² overlap
Enjeva
IUCN Not ReportedForest Reserve
7.29 km² overlap
Kafu
IUCN Not ReportedForest Reserve
0.54 km² overlap
Ezuku
IUCN Not ReportedForest Reserve
0.18 km² overlap
Kuluva
IUCN Not ReportedForest Reserve
0.10 km² overlap
Logiri
IUCN Not ReportedForest Reserve
0.08 km² overlap
1 more protected areassorted by overlap area
Eruba
IUCN Not ReportedForest Reserve
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
351 distinct species · 1 579 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Ara River : 12 espèces reliées par 7 interactions GloBI sur 4 types (connectance 9.0%, 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°
24,2°C
Annual rain
1 176mm
Moisture idx (CMI)
-0,35
Runoff
142mm/an
PET
1 818mm
AET
992mm
Mean slope
3,1°
Water table
208cm
Forest
32%
Crops
53%
Urban
2%
Protected
19%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)