HydroBASINS lev08 watershed · #5080028140
Bassin de Panay 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 27 administrative regions : Ajuy, Altavas, Bingawan, Calinog, Cuartero +22
Sub-basin area
2 104,3km²
Upstream area
2 104,5km²
Discharge
86,14m³/s
Mean elev.
119m
Administrative coverage
27 dept-equivalent regions (GADM L2)
- 420.9 km²20.1% of basin
- 307.9 km²14.7% of basin
- 221.8 km²10.6% of basin
- 189.7 km²9.1% of basin
- Lemery121.4 km²5.8% of basin
- 108.3 km²5.2% of basin
- 101.5 km²4.8% of basin
- 97.0 km²4.6% of basin
19 moreFull L2 list
- Mambusao92.9 km² · 4.4%
- Sara91.9 km² · 4.4%
- Panitan87.7 km² · 4.2%
- Panay70.4 km² · 3.4%
- Dao67.8 km² · 3.2%
- Roxas City34.2 km² · 1.6%
- Passi City17.6 km² · 0.8%
- Bingawan16.7 km² · 0.8%
- Pontevedra15.1 km² · 0.7%
- Calinog11.5 km² · 0.5%
- Ivisan4.5 km² · 0.2%
- San Dionisio4.1 km² · 0.2%
- San Rafael3.2 km² · 0.2%
- Altavas3.1 km² · 0.1%
- Sapi-An2.1 km² · 0.1%
- Ajuy1.8 km² · 0.1%
- Pilar1.5 km² · 0.1%
- President Roxas0.8 km² · 0.0%
- Lambunao0.4 km² · 0.0%
2 intersecting protected areas
Pan-ay River Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
40.79 km² overlap
Jalaur River Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
1.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
522 distinct species · 747 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 49 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 Panay River : 43 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 6 types (connectance 3.8%, 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°
26,9°C
Annual rain
2 530mm
Moisture idx (CMI)
0,42
Runoff
1 563mm/an
PET
1 467mm
AET
1 374mm
Mean slope
5,1°
Water table
196cm
Forest
2%
Crops
37%
Urban
15%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)