HydroBASINS lev08 watershed · #5080049340
Bassin · #5080049340
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 : Alotau, Ijivitari
Sub-basin area
966,1km²
Upstream area
966,1km²
Discharge
0,04m³/s
Mean elev.
240m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 878.2 km²91.3% of basin
- 38.9 km²4.0% of basin
1 intersecting protected areas
Baniara Island
IUCN Not ReportedProtected Area
0.37 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
460 distinct species · 708 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 · #5080049340 : 11 espèces reliées par 12 interactions GloBI sur 3 types (connectance 13.2%, filtre Serrano α=0.2). 3 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°
25,4°C
Annual rain
2 055mm
Moisture idx (CMI)
0,27
Runoff
1 089mm/an
PET
1 455mm
AET
1 313mm
Mean slope
5,6°
Water table
185cm
Forest
48%
Crops
5%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)