HydroBASINS lev08 watershed · #5080028580
Bassin de Pagbahan
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 7 administrative regions : Abra de Ilog, Baco, Mamburao, Paluan, Puerto Galera +2
Sub-basin area
2 223,8km²
Upstream area
2 223,8km²
Discharge
3,03m³/s
Mean elev.
377m
Administrative coverage
7 dept-equivalent regions (GADM L2)
- 557.2 km²25.2% of basin
- 508.8 km²23.0% of basin
- Santa Cruz503.6 km²22.7% of basin
- 344.7 km²15.6% of basin
- 139.2 km²6.3% of basin
- 99.6 km²4.5% of basin
- 1.6 km²0.1% of basin
3 intersecting protected areas
Calavite & F.B. Harrison Game Refuge and Bird Sanctuary
IUCN Not AssignedGame Refuge and Bird Sanctuary
426.95 km² overlap
Wildlife Sanctuary
181.51 km² overlap
Mangrove Swamp Forest Reserve
0.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 679 distinct species · 8 689 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 Pagbahan : 13 espèces reliées par 7 interactions GloBI sur 3 types (connectance 7.7%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
25,4°C
Annual rain
2 298mm
Moisture idx (CMI)
0,37
Runoff
1 422mm/an
PET
1 430mm
AET
1 159mm
Mean slope
13,9°
Water table
435cm
Forest
16%
Crops
27%
Urban
2%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)