HydroBASINS lev08 watershed · #2080341250
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 5 administrative regions : Privolzhskiy rayon, Shigonskiy rayon, Stavropol'skiy rayon, Syzranskiy rayon, Water body
Sub-basin area
658,9km²
Upstream area
3 415km²
Discharge
14,03m³/s
Mean elev.
101m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Уса634 km²
- Bassin de Тишерек496 km²
5 dept-equivalent regions (GADM L2)
- Shigonskiy rayonSamara · Russia292.2 km²44.2% of basin
- Privolzhskiy rayonSamara · Russia194.1 km²29.3% of basin
- Water bodySamara · Russia91.5 km²13.8% of basin
- Stavropol'skiy rayonSamara · Russia47.4 km²7.2% of basin
- Syzranskiy rayonSamara · Russia36.5 km²5.5% of basin
6 intersecting protected areas
Middle Volga
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
119.24 km² overlap
Samarskaya Luka
IUCN IINational Park
115.33 km² overlap
Muranskie brusnichniki
IUCN IIINatural Monument
20.04 km² overlap
Muranskij bor
IUCN IIINatural Monument
19.08 km² overlap
Muranskie ozera
IUCN IIINatural Monument
12.24 km² overlap
Karaul`nyj bugor (gora Svetelka)
IUCN IIINatural Monument
0.38 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 154 distinct species · 4 289 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 : 32 espèces reliées par 71 interactions GloBI sur 5 types (connectance 10.1%, filtre Serrano α=0.2). 6 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°
4,7°C
Annual rain
490mm
Moisture idx (CMI)
-0,32
Runoff
148mm/an
PET
724mm
AET
417mm
Mean slope
1,8°
Water table
168cm
Forest
32%
Crops
36%
Urban
0%
Protected
19%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)