HydroBASINS lev08 watershed · #2080312960
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 3 administrative regions : Kasimov, Kasimovskiy rayon, Shilovskiy rayon
Sub-basin area
160,8km²
Upstream area
128 579,9km²
Discharge
744,12m³/s
Mean elev.
119m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Гусь3787 km²
- Bassin de Ока778 km²
3 dept-equivalent regions (GADM L2)
- Kasimovskiy rayonRyazan' · Russia154.9 km²95.9% of basin
- 4.6 km²2.9% of basin
- Shilovskiy rayonRyazan' · Russia2.0 km²1.2% of basin
1 intersecting protected areas
Strashnyj ovrag
IUCN IIINatural Monument
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
297 distinct species · 504 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 : 38 espèces reliées par 98 interactions GloBI sur 6 types (connectance 9.1%, 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°
4,7°C
Annual rain
595mm
Moisture idx (CMI)
-0,12
Runoff
187mm/an
PET
676mm
AET
475mm
Mean slope
1,2°
Water table
115cm
Forest
29%
Crops
27%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)