HydroBASINS lev08 watershed · #2080360250
Bassin de Чагра
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 : Dukhovnitskiy rayon, Khvorostyanskiy rayon, Privolzhskiy rayon
Sub-basin area
465,8km²
Upstream area
2 775km²
Discharge
10,08m³/s
Mean elev.
58m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Чагра202 km²
- Bassin de Чагра91 km²
3 dept-equivalent regions (GADM L2)
- Khvorostyanskiy rayonSamara · Russia382.2 km²81.7% of basin
- 69.5 km²14.9% of basin
- Privolzhskiy rayonSamara · Russia16.0 km²3.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
523 distinct species · 689 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Чагра : 10 espèces reliées par 15 interactions GloBI sur 3 types (connectance 16.5%, filtre Serrano α=0.2). 4 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°
5,2°C
Annual rain
472mm
Moisture idx (CMI)
-0,38
Runoff
124mm/an
PET
759mm
AET
403mm
Mean slope
0,6°
Water table
118cm
Forest
0%
Crops
73%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)