HydroBASINS lev08 watershed · #2080335380
Bassin de Сызганка
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 : Baryshskiy rayon, Bazarnosyzganskiy rayon, Inzenski rayon
Sub-basin area
304,3km²
Upstream area
304,5km²
Discharge
0,56m³/s
Mean elev.
270m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Bazarnosyzganskiy rayonUl'yanovsk · Russia222.7 km²72.9% of basin
- Inzenski rayonUl'yanovsk · Russia70.1 km²22.9% of basin
- Baryshskiy rayonUl'yanovsk · Russia12.7 km²4.2% of basin
1 intersecting protected areas
Bazarnosyzganskij
IUCN IVState Natural Zakaznik
15.84 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
244 distinct species · 312 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Сызганка : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 5 types (connectance 15.0%, filtre Serrano α=0.2). 13 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°
3,9°C
Annual rain
564mm
Moisture idx (CMI)
-0,19
Runoff
87mm/an
PET
694mm
AET
467mm
Mean slope
1,7°
Water table
154cm
Forest
26%
Crops
45%
Urban
2%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)