HydroBASINS lev08 watershed · #2080313880
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 : Ermishevskiy rayon, Kasimovskiy rayon, Pitelinskiy rayon
Sub-basin area
197,5km²
Upstream area
181 300,8km²
Discharge
1 013,02m³/s
Mean elev.
99m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Мокша563 km²
- Bassin de Ока7 km²
3 dept-equivalent regions (GADM L2)
- Kasimovskiy rayonRyazan' · Russia78.4 km²39.5% of basin
- Ermishevskiy rayonRyazan' · Russia74.8 km²37.7% of basin
- Pitelinskiy rayonRyazan' · Russia45.2 km²22.8% of basin
2 intersecting protected areas
Mokshinskij
IUCN IVState Natural Zakaznik
14.39 km² overlap
SHHerbatovskij
IUCN IVState Natural Zakaznik
12.98 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
264 distinct species · 383 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 : 17 espèces reliées par 60 interactions GloBI sur 4 types (connectance 11.4%, filtre Serrano α=0.2). 16 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
592mm
Moisture idx (CMI)
-0,13
Runoff
174mm/an
PET
677mm
AET
472mm
Mean slope
0,8°
Water table
62cm
Forest
67%
Crops
8%
Urban
0%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)