HydroBASINS lev08 watershed · #5080049590
Bassin · #5080049590
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 : Alotau
Sub-basin area
83,9km²
Upstream area
84km²
Discharge
3,93m³/s
Mean elev.
260m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 78.5 km²93.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
149 distinct species · 232 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 · #5080049590 : 14 espèces reliées par 9 interactions GloBI sur 4 types (connectance 9.9%, 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°
25,2°C
Annual rain
2 786mm
Moisture idx (CMI)
0,50
Runoff
1 484mm/an
PET
1 377mm
AET
1 362mm
Mean slope
12,3°
Water table
314cm
Forest
35%
Crops
3%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)