HydroBASINS lev08 watershed · #4080029750
Bassin de Meenachil
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 4 administrative regions : Alappuzha, Idukki, Kottayam, Pathanamthitta
Sub-basin area
1 318,6km²
Upstream area
1 318,9km²
Discharge
85,36m³/s
Mean elev.
97m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 1113.5 km²84.8% of basin
- 100.1 km²7.6% of basin
- 60.9 km²4.6% of basin
- 33.0 km²2.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 403 distinct species · 218 834 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Meenachil : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 3 types (connectance 8.0%, 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°
27,1°C
Annual rain
3 094mm
Moisture idx (CMI)
0,52
Runoff
1 850mm/an
PET
1 471mm
AET
1 220mm
Mean slope
5,3°
Water table
176cm
Forest
57%
Crops
82%
Urban
24%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)