HydroBASINS lev08 watershed · #4081146800
Bassin de Chaliyar 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 : Kozhikode, Malappuram
Sub-basin area
454,7km²
Upstream area
2 172,7km²
Discharge
106,22m³/s
Mean elev.
96m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Kuthirapuzha278 km²
- Bassin de Kuruvan Puzha195 km²
2 dept-equivalent regions (GADM L2)
- 417.4 km²92.1% of basin
- 35.6 km²7.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
423 distinct species · 21 159 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Chaliyar River : 36 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 3 types (connectance 5.6%, filtre Serrano α=0.2). 5 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°
27,2°C
Annual rain
2 982mm
Moisture idx (CMI)
0,49
Runoff
1 791mm/an
PET
1 515mm
AET
1 105mm
Mean slope
6,5°
Water table
222cm
Forest
64%
Crops
59%
Urban
35%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)