HydroBASINS lev08 watershed · #2080278470
Bassin de Большая Кокшага
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 : Kiknurskiy rayon, Sanchurskiy rayon, Yaranskiy rayon
Sub-basin area
703,8km²
Upstream area
1 499,9km²
Discharge
6,8m³/s
Mean elev.
117m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Большая Кокшага582 km²
- Bassin de Ваштранга214 km²
3 dept-equivalent regions (GADM L2)
- 358.2 km²50.6% of basin
- 318.4 km²45.0% of basin
- 30.6 km²4.3% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
206 distinct species · 230 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 Большая Кокшага : 21 espèces reliées par 39 interactions GloBI sur 5 types (connectance 10.3%, 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°
3,2°C
Annual rain
590mm
Moisture idx (CMI)
-0,03
Runoff
133mm/an
PET
610mm
AET
454mm
Mean slope
1,0°
Water table
94cm
Forest
35%
Crops
54%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)