HydroBASINS lev08 watershed · #2080317010
Bassin de Бугурна
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 : Drozhzhanovskiy rayon, Tsil'ninskiy rayon, Ul'yanovskiy rayon, Water body
Sub-basin area
486,1km²
Upstream area
6 296,6km²
Discharge
20,38m³/s
Mean elev.
136m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Бирюч768 km²
- Bassin de Свияга396 km²
4 dept-equivalent regions (GADM L2)
- Tsil'ninskiy rayonUl'yanovsk · Russia366.3 km²75.0% of basin
- Ul'yanovskiy rayonUl'yanovsk · Russia107.8 km²22.1% of basin
- 9.3 km²1.9% of basin
- Water bodyUl'yanovsk · Russia4.8 km²1.0% of basin
1 intersecting protected areas
Reka Sviyaga
IUCN IIINatural Monument
0.54 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
195 distinct species · 299 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 Бугурна : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 4 types (connectance 15.2%, filtre Serrano α=0.2). 3 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
527mm
Moisture idx (CMI)
-0,23
Runoff
104mm/an
PET
681mm
AET
445mm
Mean slope
1,1°
Water table
121cm
Forest
5%
Crops
69%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)