HydroBASINS lev08 watershed · #5080053640
Bassin de Aropa 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 2 administrative regions : Central Bougainville, South Bougainville
Sub-basin area
1 480,1km²
Upstream area
1 480,1km²
Discharge
23,25m³/s
Mean elev.
352m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1412.7 km²95.9% of basin
- 2.9 km²0.2% of basin
1 intersecting protected areas
Pirung Eight Islands
IUCN Not ReportedWildlife Management Area
48.74 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 199 distinct species · 3 967 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Aropa River : 22 espèces reliées par 21 interactions GloBI sur 4 types (connectance 6.0%, filtre Serrano α=0.2). 5 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°
25,2°C
Annual rain
3 221mm
Moisture idx (CMI)
0,57
Runoff
1 904mm/an
PET
1 374mm
AET
1 374mm
Mean slope
10,7°
Water table
254cm
Forest
45%
Crops
1%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)