HydroBASINS lev08 watershed · #2080316210
Bassin de Ока
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 : Kasimov, Kasimovskiy rayon, Pitelinskiy rayon, Shilovskiy rayon
Sub-basin area
784,4km²
Upstream area
129 695,9km²
Discharge
751,59m³/s
Mean elev.
122m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Сынтулка332 km²
- Bassin de Ока161 km²
4 dept-equivalent regions (GADM L2)
- Kasimovskiy rayonRyazan' · Russia704.7 km²89.4% of basin
- Pitelinskiy rayonRyazan' · Russia49.7 km²6.3% of basin
- Shilovskiy rayonRyazan' · Russia21.8 km²2.8% of basin
- 11.8 km²1.5% of basin
3 intersecting protected areas
SHHerbatovskij
IUCN IVState Natural Zakaznik
7.86 km² overlap
Les u s. Betino
IUCN IIINatural Monument
3.80 km² overlap
SHHerbatovskie izvestnyaki
IUCN IIINatural Monument
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 259 distinct species · 3 109 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Ока : 18 espèces reliées par 58 interactions GloBI sur 5 types (connectance 17.8%, filtre Serrano α=0.2). 8 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
595mm
Moisture idx (CMI)
-0,12
Runoff
181mm/an
PET
677mm
AET
474mm
Mean slope
1,2°
Water table
100cm
Forest
46%
Crops
25%
Urban
3%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)