HydroBASINS lev08 watershed · #4080028690
Bassin de Gadilam 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 2 administrative regions : Cuddalore, Viluppuram
Sub-basin area
1 392,9km²
Upstream area
1 392,9km²
Discharge
14,74m³/s
Mean elev.
71m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Viluppuram956.3 km²68.9% of basin
- Cuddalore431.1 km²31.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
251 distinct species · 24 771 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Gadilam River : 22 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 3 types (connectance 10.3%, filtre Serrano α=0.2). 10 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°
28,5°C
Annual rain
1 076mm
Moisture idx (CMI)
-0,37
Runoff
333mm/an
PET
1 718mm
AET
877mm
Mean slope
0,5°
Water table
68cm
Forest
9%
Crops
79%
Urban
15%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)