HydroBASINS lev08 watershed · #2080311010
Bassin de Бездна
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 : Al'keevskiy rayon, Spasskiy rayon, Staromaynskiy rayon, Water body
Sub-basin area
989,1km²
Upstream area
989,3km²
Discharge
4,86m³/s
Mean elev.
79m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 645.0 km²64.9% of basin
- 163.4 km²16.4% of basin
- 133.6 km²13.4% of basin
- Staromaynskiy rayonUl'yanovsk · Russia51.6 km²5.2% of basin
5 intersecting protected areas
Great Volzhsko-Kamsky
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
150.85 km² overlap
Spassky / Great Volzhsko-Kamsky (part of)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
150.85 km² overlap
Spasskij
IUCN IVState Natural Zakaznik
111.19 km² overlap
Natural Monument
4.15 km² overlap
Ozero SHHuch`e
IUCN IIINatural Monument
0.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
96 distinct species · 672 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Бездна : 29 espèces reliées par 34 interactions GloBI sur 5 types (connectance 6.4%, filtre Serrano α=0.2). 4 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°
4,1°C
Annual rain
530mm
Moisture idx (CMI)
-0,22
Runoff
155mm/an
PET
681mm
AET
447mm
Mean slope
0,5°
Water table
55cm
Forest
7%
Crops
64%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)