HydroBASINS lev08 watershed · #2080340950
Bassin de Волга
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 : Stavropol'skiy rayon, Tol'yatti, Water body
Sub-basin area
170,4km²
Upstream area
1 205 910km²
Discharge
7 739,46m³/s
Mean elev.
126m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Волга1565 km²
- Bassin de Уса659 km²
3 dept-equivalent regions (GADM L2)
- Stavropol'skiy rayonSamara · Russia101.9 km²59.6% of basin
- Water bodySamara · Russia65.6 km²38.3% of basin
- 3.7 km²2.1% of basin
2 intersecting protected areas
Middle Volga
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
80.06 km² overlap
Samarskaya Luka
IUCN IINational Park
61.58 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 160 distinct species · 7 967 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Волга : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 5 types (connectance 11.6%, 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°
4,5°C
Annual rain
506mm
Moisture idx (CMI)
-0,29
Runoff
116mm/an
PET
713mm
AET
430mm
Mean slope
3,5°
Water table
200cm
Forest
36%
Crops
17%
Urban
20%
Protected
43%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)