HydroBASINS lev08 watershed · #2080304450
Bassin de Оша
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 4 administrative regions : Chistopol'skiy rayon, Nizhnekamskiy rayon, Novosheshminskiy rayon, Water body
Sub-basin area
309,8km²
Upstream area
6 191,4km²
Discharge
31,57m³/s
Mean elev.
108m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Толкишка532 km²
- Bassin de Шешма366 km²
4 dept-equivalent regions (GADM L2)
- 187.6 km²60.3% of basin
- 98.1 km²31.5% of basin
- 15.5 km²5.0% of basin
- 10.0 km²3.2% of basin
3 intersecting protected areas
CHistye luga
IUCN IVState Natural Zakaznik
34.69 km² overlap
Reka SHeshma
IUCN IIINatural Monument
1.75 km² overlap
Nerestilishhe sterlyadi
IUCN IVState Natural Zakaznik
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
78 distinct species · 102 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Оша : 24 espèces reliées par 42 interactions GloBI sur 5 types (connectance 10.3%, filtre Serrano α=0.2). 5 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°
3,6°C
Annual rain
554mm
Moisture idx (CMI)
-0,17
Runoff
170mm/an
PET
671mm
AET
458mm
Mean slope
1,1°
Water table
76cm
Forest
32%
Crops
35%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)