HydroBASINS lev08 watershed · #2080341100
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 5 administrative regions : Sengileevskiy rayon, Shigonskiy rayon, Stavropol'skiy rayon, Water body
Sub-basin area
1 564,9km²
Upstream area
1 202 325,4km²
Discharge
7 723,87m³/s
Mean elev.
104m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Волга2474 km²
- Bassin · #208033283049 km²
5 dept-equivalent regions (GADM L2)
- Water bodySamara · Russia638.7 km²40.6% of basin
- Shigonskiy rayonSamara · Russia487.8 km²31.0% of basin
- Sengileevskiy rayonUl'yanovsk · Russia288.4 km²18.4% of basin
- Stavropol'skiy rayonSamara · Russia88.9 km²5.7% of basin
- Water bodyUl'yanovsk · Russia67.6 km²4.3% of basin
10 intersecting protected areas
Sengileevskie gory
IUCN IINational Park
89.64 km² overlap
Sengileevskie gory
IUCN IVState Natural Zakaznik
68.90 km² overlap
Natural Monument
9.39 km² overlap
Natural Monument
6.61 km² overlap
Levashovskaya step`
IUCN IIINatural Monument
2.58 km² overlap
Orlinaya peshhera
IUCN IIINatural Monument
1.79 km² overlap
Gur`ev ovrag
IUCN IIINatural Monument
1.78 km² overlap
Karaul`nyj bugor (gora Svetelka)
IUCN IIINatural Monument
1.00 km² overlap
CHuvashskij bugor
IUCN IIINatural Monument
0.30 km² overlap
1 more protected areassorted by overlap area
Usol`skij park
IUCN IIINatural Monument
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 277 distinct species · 5 929 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 : 25 espèces reliées par 57 interactions GloBI sur 5 types (connectance 11.5%, 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°
4,6°C
Annual rain
498mm
Moisture idx (CMI)
-0,30
Runoff
137mm/an
PET
713mm
AET
424mm
Mean slope
1,4°
Water table
122cm
Forest
17%
Crops
49%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)