HydroBASINS lev08 watershed · #5080113870
Bassin de Mallig 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 : Aguinaldo, Alfonso Lista, Barlig, Burgos, Delfin Albano +13
Sub-basin area
2 012,2km²
Upstream area
2 012,3km²
Discharge
88,58m³/s
Mean elev.
332m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
18 dept-equivalent regions (GADM L2)
- 456.8 km²22.8% of basin
- 351.0 km²17.5% of basin
- Quezon198.2 km²9.9% of basin
- 185.6 km²9.3% of basin
- 127.9 km²6.4% of basin
- Quirino127.7 km²6.4% of basin
- 120.9 km²6.0% of basin
- 112.5 km²5.6% of basin
10 moreFull L2 list
- Aguinaldo62.1 km² · 3.1%
- Alfonso Lista54.5 km² · 2.7%
- Barlig45.4 km² · 2.3%
- San Manuel40.1 km² · 2.0%
- Gamu39.8 km² · 2.0%
- Burgos31.6 km² · 1.6%
- Ilagan27.0 km² · 1.3%
- Delfin Albano23.9 km² · 1.2%
- Mayoyao0.6 km² · 0.0%
- Tumauini0.1 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
238 distinct species · 1 069 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Mallig River : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 5 types (connectance 5.6%, filtre Serrano α=0.2). 8 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°
25,5°C
Annual rain
2 154mm
Moisture idx (CMI)
0,25
Runoff
1 401mm/an
PET
1 539mm
AET
1 267mm
Mean slope
8,2°
Water table
272cm
Forest
16%
Crops
21%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)