HydroBASINS lev08 watershed · #4080912240
Bassin de Teesta 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 8 administrative regions across 2 countries : Darjiling, Gaibandha, Jalpaiguri, Koch Bihar, Kurigram +3
Sub-basin area
4 702,3km²
Upstream area
12 466,1km²
Discharge
463,19m³/s
Mean elev.
252m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rathong Chu2209 km²
- Bassin de Teesta1756 km²
8 dept-equivalent regions (GADM L2)
- Jalpaiguri1173.7 km²25.0% of basin
- Darjiling964.9 km²20.6% of basin
- LalmonirhatRangpur · Bangladesh793.2 km²16.9% of basin
- RangpurRangpur · Bangladesh548.8 km²11.7% of basin
- NilphamariRangpur · Bangladesh520.8 km²11.1% of basin
- KurigramRangpur · Bangladesh287.6 km²6.1% of basin
- GaibandhaRangpur · Bangladesh207.6 km²4.4% of basin
- 197.0 km²4.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 699 distinct species · 229 275 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Teesta River : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 19 interactions GloBI sur 3 types (connectance 6.9%, filtre Serrano α=0.2). 3 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°
23,4°C
Annual rain
2 777mm
Moisture idx (CMI)
0,49
Runoff
1 253mm/an
PET
1 391mm
AET
1 034mm
Mean slope
4,3°
Water table
155cm
Forest
19%
Crops
77%
Urban
12%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)