HydroBASINS lev08 watershed · #2080343140
Bassin de Дёма
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 : Aleksandrovskiy rayon, Ponomarevskiy rayon, Sharlykskiy rayon
Sub-basin area
692,9km²
Upstream area
2 521,2km²
Discharge
7,22m³/s
Mean elev.
221m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Дёма926 km²
- Bassin de Тятер903 km²
3 dept-equivalent regions (GADM L2)
- Ponomarevskiy rayonOrenburg · Russia607.1 km²87.3% of basin
- Sharlykskiy rayonOrenburg · Russia51.2 km²7.4% of basin
- Aleksandrovskiy rayonOrenburg · Russia37.4 km²5.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
126 distinct species · 145 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Дёма : 10 espèces reliées par 11 interactions GloBI sur 3 types (connectance 14.1%, 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°
3,6°C
Annual rain
486mm
Moisture idx (CMI)
-0,36
Runoff
102mm/an
PET
763mm
AET
413mm
Mean slope
1,6°
Water table
114cm
Forest
2%
Crops
39%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)