HydroBASINS lev08 watershed · #4081107470
Bassin de Nigari
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 : Dharwad, Haveri
Sub-basin area
714km²
Upstream area
714,2km²
Discharge
2,23m³/s
Mean elev.
636m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 629.7 km²88.5% of basin
- 81.7 km²11.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
192 distinct species · 1 696 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Nigari : 18 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 3 types (connectance 12.0%, filtre Serrano α=0.2). 8 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°
25,2°C
Annual rain
750mm
Moisture idx (CMI)
-0,55
Runoff
301mm/an
PET
1 685mm
AET
634mm
Mean slope
0,6°
Water table
122cm
Forest
15%
Crops
86%
Urban
4%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)