HydroBASINS lev08 watershed · #2080343720
Bassin de Уса
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 : Shigonskiy rayon, Syzranskiy rayon, Teren'gul'skiy rayon
Sub-basin area
634km²
Upstream area
2 259,9km²
Discharge
8,72m³/s
Mean elev.
140m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Уса652 km²
- Bassin de Теренгулька0 km²
3 dept-equivalent regions (GADM L2)
- Shigonskiy rayonSamara · Russia474.3 km²74.5% of basin
- Syzranskiy rayonSamara · Russia156.6 km²24.6% of basin
- Teren'gul'skiy rayonUl'yanovsk · Russia5.7 km²0.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
136 distinct species · 291 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Уса : 21 espèces reliées par 59 interactions GloBI sur 3 types (connectance 13.6%, filtre Serrano α=0.2). 9 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
493mm
Moisture idx (CMI)
-0,31
Runoff
144mm/an
PET
717mm
AET
420mm
Mean slope
2,0°
Water table
175cm
Forest
24%
Crops
52%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)