HydroBASINS lev08 watershed · #4080020500
Bassin de Sungai Pontian
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 : Keluang, Kulaijaya, Pontian
Sub-basin area
391,1km²
Upstream area
391,1km²
Discharge
15,53m³/s
Mean elev.
39m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 223.2 km²57.3% of basin
- 143.2 km²36.8% of basin
- 22.7 km²5.8% of basin
1 intersecting protected areas
Gunung Pulai
IUCN VIForest Reserve
6.81 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
502 distinct species · 1 451 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Sungai Pontian : 24 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 24 interactions GloBI sur 3 types (connectance 6.3%, filtre Serrano α=0.2). 4 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 632mm
Moisture idx (CMI)
0,36
Runoff
1 277mm/an
PET
1 677mm
AET
1 677mm
Mean slope
2,1°
Water table
66cm
Forest
4%
Crops
44%
Urban
7%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)