HydroBASINS lev08 watershed · #5080115570
Bassin de O' Donnel 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 30 administrative regions : Alcala, Anao, Balungao, Bamban, Bautista +25
Sub-basin area
2 109,4km²
Upstream area
2 109,5km²
Discharge
120,55m³/s
Mean elev.
180m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
30 dept-equivalent regions (GADM L2)
- San Jose495.2 km²23.6% of basin
- 303.7 km²14.4% of basin
- 165.2 km²7.9% of basin
- 162.3 km²7.7% of basin
- 144.9 km²6.9% of basin
- 128.1 km²6.1% of basin
- 108.6 km²5.2% of basin
- 98.7 km²4.7% of basin
22 moreFull L2 list
- Moncada90.5 km² · 4.3%
- Bamban66.1 km² · 3.1%
- Nampicuan44.9 km² · 2.1%
- Victoria36.9 km² · 1.8%
- Pura28.5 km² · 1.4%
- Anao27.0 km² · 1.3%
- Bayambang25.9 km² · 1.2%
- Muñoz City24.8 km² · 1.2%
- San Manuel22.9 km² · 1.1%
- Ramos22.2 km² · 1.1%
- Bautista21.8 km² · 1.0%
- Camiling20.7 km² · 1.0%
- Rosales14.4 km² · 0.7%
- Santa Ignacia13.4 km² · 0.6%
- Botolan13.3 km² · 0.6%
- Umingan11.0 km² · 0.5%
- Balungao4.4 km² · 0.2%
- Mayantoc3.6 km² · 0.2%
- Mabalacat1.5 km² · 0.1%
- Lupao1.3 km² · 0.1%
- Iba0.0 km² · 0.0%
- Alcala0.0 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
336 distinct species · 2 989 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 O' Donnel River : 26 espèces reliées par 30 interactions GloBI sur 4 types (connectance 6.5%, 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°
26,5°C
Annual rain
2 296mm
Moisture idx (CMI)
0,27
Runoff
1 800mm/an
PET
1 585mm
AET
1 129mm
Mean slope
4,5°
Water table
158cm
Forest
6%
Crops
34%
Urban
27%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)