HydroBASINS lev08 watershed · #5080030810
Bassin de Tambang 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 3 administrative regions : Goa, Lagonoy, Tinambac
Sub-basin area
206,7km²
Upstream area
206,8km²
Discharge
14,09m³/s
Mean elev.
189m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 107.5 km²52.2% of basin
- 65.1 km²31.6% of basin
- 32.4 km²15.7% of basin
3 intersecting protected areas
Mt. Isarog Natural Park
IUCN IINatural Park
4.41 km² overlap
Marine Protected Area Development Action and Networking Goal for Accountability and Transformation (MPADANGAT)
IUCN Not ApplicableMarine Protected Area Network
0.90 km² overlap
Tanglar point to Bicol River up to the Islands of Lahay, Locsuhin, Haponan, Quinabungan, Lamit and Batan Magrove Swamp Forest Reserve
IUCN Not AssignedMangrove Swamp Forest Reserve
0.70 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
57 distinct species · 79 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 Tambang River : 7 espèces reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
26,1°C
Annual rain
3 008mm
Moisture idx (CMI)
0,51
Runoff
2 171mm/an
PET
1 469mm
AET
1 427mm
Mean slope
7,4°
Water table
241cm
Forest
27%
Crops
59%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)