HydroBASINS lev08 watershed · #5080025730
Bassin de Simuay 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 11 administrative regions : Alamada, Barira, Buldon, Butig, Cotabato City +6
Sub-basin area
673,8km²
Upstream area
673,8km²
Discharge
22,12m³/s
Mean elev.
661m
Administrative coverage
11 dept-equivalent regions (GADM L2)
- 285.1 km²42.5% of basin
- 107.2 km²16.0% of basin
- 69.8 km²10.4% of basin
- 67.8 km²10.1% of basin
- Barira59.0 km²8.8% of basin
- 46.4 km²6.9% of basin
- 22.4 km²3.3% of basin
- 6.4 km²1.0% of basin
3 moreFull L2 list
- Butig5.8 km² · 0.9%
- Cotabato City0.9 km² · 0.1%
- Pigkawayan0.1 km² · 0.0%
2 intersecting protected areas
Lake Lanao Watershed Reservation
IUCN Not AssignedWatershed Reservation
3.42 km² overlap
Libungan Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
2.73 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
98 distinct species · 182 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 10 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 Simuay River : 10 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 6 interactions GloBI sur 3 types (connectance 13.3%, 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°
23,7°C
Annual rain
2 611mm
Moisture idx (CMI)
0,38
Runoff
1 070mm/an
PET
1 596mm
AET
1 521mm
Mean slope
8,4°
Water table
253cm
Forest
22%
Crops
39%
Urban
3%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)