HydroBASINS lev08 watershed · #5080029820
Bassin de Naguilian 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 12 administrative regions : Aringay, Baguio City, Bagulin, Bauang, Burgos +7
Sub-basin area
521,7km²
Upstream area
521,9km²
Discharge
27,74m³/s
Mean elev.
603m
Administrative coverage
12 dept-equivalent regions (GADM L2)
- 75.6 km²14.5% of basin
- Naguilian67.6 km²13.0% of basin
- 66.3 km²12.8% of basin
- 61.5 km²11.8% of basin
- Burgos48.8 km²9.4% of basin
- 44.2 km²8.5% of basin
- 41.8 km²8.0% of basin
- 40.8 km²7.9% of basin
4 moreFull L2 list
- Tublay37.9 km² · 7.3%
- San Gabriel20.0 km² · 3.8%
- Baguio City14.7 km² · 2.8%
- Aringay0.1 km² · 0.0%
5 intersecting protected areas
Marcos Highway Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
3.76 km² overlap
Naguilian Watershed Reservation
IUCN Not AssignedWatershed Reservation
0.87 km² overlap
Lower Agno Watershed Forest Reserve
IUCN Not AssignedWatershed Forest Reserve
0.38 km² overlap
Mt. Data National Park
IUCN Not AssignedNational Park
0.29 km² overlap
Resource Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 732 distinct species · 7 587 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 Naguilian River : 31 espèces reliées par 34 interactions GloBI sur 4 types (connectance 5.4%, filtre Serrano α=0.2). 5 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°
24,0°C
Annual rain
2 444mm
Moisture idx (CMI)
0,39
Runoff
1 849mm/an
PET
1 450mm
AET
1 047mm
Mean slope
14,4°
Water table
455cm
Forest
19%
Crops
14%
Urban
19%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)