HydroBASINS lev08 watershed · #5080114070
Bassin de Ilagan 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 4 administrative regions : Benito Soliven, Ilagan, Naguilian, San Mariano
Sub-basin area
152,4km²
Upstream area
2 326,3km²
Discharge
127,38m³/s
Mean elev.
125m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Disabungan River667 km²
- Bassin de Ilagan River286 km²
4 dept-equivalent regions (GADM L2)
- 99.5 km²65.5% of basin
- 40.8 km²26.9% of basin
- 10.1 km²6.6% of basin
- 1.6 km²1.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
48 distinct species · 114 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 6 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 Ilagan River : 6 espèces reliées par 4 interactions GloBI sur 1 type (connectance 26.7%, 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°
26,4°C
Annual rain
2 235mm
Moisture idx (CMI)
0,28
Runoff
1 351mm/an
PET
1 593mm
AET
1 300mm
Mean slope
3,7°
Water table
137cm
Forest
4%
Crops
44%
Urban
16%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)