HydroBASINS lev08 watershed · #4080029690
Bassin de Pallikkalar
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 : Alappuzha, Kollam, Pathanamthitta
Sub-basin area
502,9km²
Upstream area
502,9km²
Discharge
0,52m³/s
Mean elev.
18m
Species present
662 distinct species · 123 324 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Pallikkalar : 22 espèces reliées par 41 interactions GloBI sur 3 types (connectance 10.8%, filtre Serrano α=0.2). 6 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
2 785mm
Moisture idx (CMI)
0,50
Runoff
1 597mm/an
PET
1 402mm
AET
1 163mm
Mean slope
1,0°
Water table
40cm
Forest
21%
Crops
80%
Urban
84%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)