HydroBASINS lev08 watershed · #5080030060
Bassin de Padsan 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 18 administrative regions : Bacarra, Banna, Batac City, Calanasan, Carasi +13
Sub-basin area
1 340,6km²
Upstream area
1 340,7km²
Discharge
69,96m³/s
Mean elev.
395m
Administrative coverage
18 dept-equivalent regions (GADM L2)
- 451.2 km²33.8% of basin
- 153.0 km²11.4% of basin
- 122.4 km²9.2% of basin
- 90.6 km²6.8% of basin
- 88.1 km²6.6% of basin
- 86.6 km²6.5% of basin
- 85.6 km²6.4% of basin
- 73.0 km²5.5% of basin
10 moreFull L2 list
- Laoag City66.2 km² · 5.0%
- Vintar52.6 km² · 3.9%
- San Nicolas38.1 km² · 2.9%
- Tineg18.6 km² · 1.4%
- Calanasan5.0 km² · 0.4%
- Batac City2.9 km² · 0.2%
- Lagayan0.9 km² · 0.1%
- Pinili0.7 km² · 0.1%
- Kabugao0.1 km² · 0.0%
- Bacarra0.0 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
524 distinct species · 3 975 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Padsan River : 17 espèces reliées par 33 interactions GloBI sur 3 types (connectance 10.2%, filtre Serrano α=0.2). 9 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°
24,8°C
Annual rain
2 724mm
Moisture idx (CMI)
0,45
Runoff
1 806mm/an
PET
1 449mm
AET
1 170mm
Mean slope
11,6°
Water table
359cm
Forest
25%
Crops
15%
Urban
12%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)