HydroBASINS lev08 watershed · #5080029890
Bassin de Buaya 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 28 administrative regions : Banayoyo, Bangar, Burgos, Candon City, Cervantes +23
Sub-basin area
1 112,1km²
Upstream area
1 112,1km²
Discharge
7,27m³/s
Mean elev.
190m
Administrative coverage
28 dept-equivalent regions (GADM L2)
- Santa Cruz105.8 km²9.5% of basin
- 96.9 km²8.7% of basin
- 80.3 km²7.2% of basin
- 80.1 km²7.2% of basin
- 78.0 km²7.0% of basin
- Salcedo69.2 km²6.2% of basin
- Santiago65.5 km²5.9% of basin
- 63.9 km²5.8% of basin
20 moreFull L2 list
- Santa Maria52.3 km² · 4.7%
- Burgos49.6 km² · 4.5%
- Santa Lucia43.8 km² · 4.0%
- Lidlidda39.4 km² · 3.6%
- Nagbukel36.4 km² · 3.3%
- Tagudin33.4 km² · 3.0%
- Galimuyod32.8 km² · 3.0%
- Sigay23.4 km² · 2.1%
- Banayoyo23.2 km² · 2.1%
- Villaviciosa22.7 km² · 2.0%
- Suyo19.3 km² · 1.7%
- Santa19.0 km² · 1.7%
- San Quintin17.7 km² · 1.6%
- San Esteban17.2 km² · 1.6%
- Quirino9.4 km² · 0.8%
- Pidigan6.0 km² · 0.5%
- San Isidro1.4 km² · 0.1%
- Bangar0.7 km² · 0.1%
- Cervantes0.6 km² · 0.0%
- Sudipen0.4 km² · 0.0%
5 intersecting protected areas
Northern Luzon Heroes Hill National Park
IUCN Not AssignedNational Park
19.11 km² overlap
Protected Landscape
10.41 km² overlap
Protected Landscape
1.96 km² overlap
Protected Landscape
1.43 km² overlap
Santa Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
0.27 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
221 distinct species · 703 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Buaya River : 40 espèces reliées par 35 interactions GloBI sur 3 types (connectance 3.5%, filtre Serrano α=0.2). 5 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°
26,2°C
Annual rain
2 515mm
Moisture idx (CMI)
0,40
Runoff
1 962mm/an
PET
1 511mm
AET
1 070mm
Mean slope
8,5°
Water table
311cm
Forest
6%
Crops
12%
Urban
22%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)