HydroBASINS lev08 watershed · #5080026870
Bassin de Ulot 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 9 administrative regions : Can-Avid, Dolores, Hinabangan, Jiabong, Maslog +4
Sub-basin area
896,9km²
Upstream area
896,9km²
Discharge
65,87m³/s
Mean elev.
206m
Administrative coverage
9 dept-equivalent regions (GADM L2)
- 489.7 km²54.8% of basin
- 183.1 km²20.5% of basin
- 74.6 km²8.3% of basin
- 48.1 km²5.4% of basin
- 36.5 km²4.1% of basin
- 22.8 km²2.5% of basin
- 19.6 km²2.2% of basin
- 17.6 km²2.0% of basin
1 moreFull L2 list
- Dolores1.0 km² · 0.1%
1 intersecting protected areas
Samar Island Natural Park
IUCN IINatural Park
417.61 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
722 distinct species · 2 903 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 8 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 Ulot River : 8 espèces reliées par 5 interactions GloBI sur 2 types (connectance 17.9%, 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°
26,0°C
Annual rain
3 207mm
Moisture idx (CMI)
0,54
Runoff
2 069mm/an
PET
1 488mm
AET
1 487mm
Mean slope
8,4°
Water table
268cm
Forest
43%
Crops
30%
Urban
0%
Protected
65%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)