HydroBASINS lev08 watershed · #4080029720
Bassin de Pamba
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, Kottayam, Pathanamthitta
Sub-basin area
320,9km²
Upstream area
3 955,4km²
Discharge
149,09m³/s
Mean elev.
4m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Achenkovil1136 km²
- Bassin de Manimala River16 km²
3 dept-equivalent regions (GADM L2)
- 270.5 km²84.6% of basin
- 46.7 km²14.6% of basin
- 2.3 km²0.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
631 distinct species · 77 548 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 Pamba : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 3 types (connectance 7.7%, 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°
27,3°C
Annual rain
3 016mm
Moisture idx (CMI)
0,53
Runoff
1 827mm/an
PET
1 416mm
AET
1 173mm
Mean slope
0,3°
Water table
10cm
Forest
0%
Crops
89%
Urban
48%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)