HydroBASINS lev08 watershed · #2080349550
Bassin de Колдаис
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 : Bessonovskiy rayon, Gorodishchenskiy rayon, Kameshkirskiy rayon, Shemysheyskiy rayon
Sub-basin area
417,9km²
Upstream area
417,9km²
Discharge
1,84m³/s
Mean elev.
235m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Shemysheyskiy rayonPenza · Russia322.2 km²76.8% of basin
- Gorodishchenskiy rayonPenza · Russia61.6 km²14.7% of basin
- Kameshkirskiy rayonPenza · Russia32.1 km²7.7% of basin
- Bessonovskiy rayonPenza · Russia3.7 km²0.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
235 distinct species · 480 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Колдаис : 28 espèces reliées par 92 interactions GloBI sur 5 types (connectance 12.4%, filtre Serrano α=0.2). 11 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°
4,5°C
Annual rain
547mm
Moisture idx (CMI)
-0,24
Runoff
138mm/an
PET
724mm
AET
460mm
Mean slope
1,1°
Water table
117cm
Forest
19%
Crops
57%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)