HydroBASINS lev08 watershed · #5080030780
Bassin de Libmanan 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 5 administrative regions : Bombon, Cabusao, Canaman, Libmanan, Magarao
Sub-basin area
29,1km²
Upstream area
2 905,7km²
Discharge
169,37m³/s
Mean elev.
3m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Libmanan River725 km²
- Bassin de Bicol River508 km²
5 dept-equivalent regions (GADM L2)
- 13.2 km²45.4% of basin
- 9.1 km²31.2% of basin
- 3.4 km²11.6% of basin
- 3.3 km²11.4% of basin
- 0.1 km²0.3% of basin
1 intersecting protected areas
Tanglar point to Bicol River up to the Islands of Lahay, Locsuhin, Haponan, Quinabungan, Lamit and Batan Magrove Swamp Forest Reserve
IUCN Not AssignedMangrove Swamp Forest Reserve
0.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
44 distinct species · 62 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Libmanan River : 11 espèces reliées par 8 interactions GloBI sur 2 types (connectance 10.3%, filtre Serrano α=0.2). 2 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°
27,0°C
Annual rain
2 629mm
Moisture idx (CMI)
0,43
Runoff
2 149mm/an
PET
1 493mm
AET
1 397mm
Mean slope
0,1°
Water table
2cm
Forest
12%
Crops
47%
Urban
17%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)