HydroBASINS lev08 watershed · #4080028610
Bassin de Buckingham Kaalvaai
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 : Kancheepuram, Tiruvannamalai, Viluppuram
Sub-basin area
861,9km²
Upstream area
861,9km²
Discharge
9,38m³/s
Mean elev.
42m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 465.5 km²54.2% of basin
- Viluppuram257.2 km²30.0% of basin
- Tiruvannamalai130.7 km²15.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
225 distinct species · 4 635 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Buckingham Kaalvaai : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 33 interactions GloBI sur 4 types (connectance 10.2%, filtre Serrano α=0.2). 7 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°
28,4°C
Annual rain
1 071mm
Moisture idx (CMI)
-0,37
Runoff
390mm/an
PET
1 692mm
AET
866mm
Mean slope
0,3°
Water table
41cm
Forest
5%
Crops
56%
Urban
11%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)