HydroBASINS lev08 watershed · #5080027920
Bassin de Okoy 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 9 administrative regions : Amlan, Bacong, Dumaguete City, Pamplona, San Jose +4
Sub-basin area
406,6km²
Upstream area
406,6km²
Discharge
10,82m³/s
Mean elev.
385m
Administrative coverage
9 dept-equivalent regions (GADM L2)
- Valencia106.5 km²26.3% of basin
- 91.8 km²22.7% of basin
- 64.3 km²15.9% of basin
- San Jose47.1 km²11.6% of basin
- 41.4 km²10.2% of basin
- 30.4 km²7.5% of basin
- Pamplona10.0 km²2.5% of basin
- Santa Catalina1.6 km²0.4% of basin
1 moreFull L2 list
- Bacong0.7 km² · 0.2%
3 intersecting protected areas
Natural Park
48.60 km² overlap
Protected Seascape
9.06 km² overlap
Dumaguete City, Negros Oriental
IUCN Not ApplicableMarine Protected Area Network
2.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 663 distinct species · 20 675 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 Okoy River : 14 espèces reliées par 13 interactions GloBI sur 3 types (connectance 9.6%, filtre Serrano α=0.2). 3 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°
25,7°C
Annual rain
1 949mm
Moisture idx (CMI)
0,19
Runoff
981mm/an
PET
1 522mm
AET
1 328mm
Mean slope
9,8°
Water table
319cm
Forest
22%
Crops
25%
Urban
31%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)