HydroBASINS lev08 watershed · #5080028710
Bassin de Bongabong 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 14 administrative regions : Bansud, Bongabong, Bulalacao, Calapan City, Gloria +9
Sub-basin area
2 931,6km²
Upstream area
2 931,6km²
Discharge
0,67m³/s
Mean elev.
251m
Administrative coverage
14 dept-equivalent regions (GADM L2)
- 483.7 km²16.6% of basin
- 327.3 km²11.2% of basin
- 279.6 km²9.6% of basin
- 226.2 km²7.7% of basin
- 219.4 km²7.5% of basin
- 206.9 km²7.1% of basin
- 206.1 km²7.1% of basin
- Victoria201.9 km²6.9% of basin
6 moreFull L2 list
- Bansud197.0 km² · 6.7%
- Sablayan185.0 km² · 6.3%
- Pola127.0 km² · 4.4%
- Roxas90.2 km² · 3.1%
- Naujan Lake76.1 km² · 2.6%
- Calapan City15.7 km² · 0.5%
4 intersecting protected areas
Mts. Iglit-Baco Natural Park
IUCN IINatural Park
310.73 km² overlap
Mts. Iglit-Baco Natural Park
IUCN IIASEAN Heritage Park
310.73 km² overlap
Naujan Lake National Park
IUCN Not AssignedNational Park
153.26 km² overlap
Mangrove Swamp Forest Reserve
8.77 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 177 distinct species · 4 353 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Bongabong River : 29 espèces reliées par 42 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 7 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°
26,1°C
Annual rain
2 469mm
Moisture idx (CMI)
0,41
Runoff
1 444mm/an
PET
1 415mm
AET
1 225mm
Mean slope
8,4°
Water table
271cm
Forest
23%
Crops
27%
Urban
14%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)