HydroBASINS lev08 watershed · #2080361820
Bassin de Чагра
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 : Ivanteevskiy rayon, Khvorostyanskiy rayon, Pestravskiy rayon
Sub-basin area
437,1km²
Upstream area
1 817,6km²
Discharge
6,44m³/s
Mean elev.
85m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Чагра731 km²
- Bassin de Чёрненькая649 km²
3 dept-equivalent regions (GADM L2)
- Khvorostyanskiy rayonSamara · Russia406.3 km²92.6% of basin
- Pestravskiy rayonSamara · Russia27.4 km²6.2% of basin
- 5.1 km²1.2% of basin
1 intersecting protected areas
Urochishhe Tyul`pan
IUCN IIINatural Monument
0.39 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
217 distinct species · 1 648 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Чагра : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 4 types (connectance 20.0%, filtre Serrano α=0.2). 8 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°
5,0°C
Annual rain
472mm
Moisture idx (CMI)
-0,38
Runoff
114mm/an
PET
757mm
AET
403mm
Mean slope
1,0°
Water table
168cm
Forest
0%
Crops
69%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)