HydroBASINS lev08 watershed · #2080322930
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 4 administrative regions : Al'sheyevskiy rayon, Chishminskiy rayon, Davlekanovo, Davlekanovskiy rayon
Sub-basin area
677,8km²
Upstream area
10 246,2km²
Discharge
29,34m³/s
Mean elev.
160m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Тюлянь335 km²
- Bassin de Дёма59 km²
4 dept-equivalent regions (GADM L2)
- 362.7 km²53.3% of basin
- 222.4 km²32.7% of basin
- 94.2 km²13.8% of basin
- 1.5 km²0.2% of basin
1 intersecting protected areas
Natural Monument
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
288 distinct species · 428 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 53 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 : 36 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 5 types (connectance 7.8%, filtre Serrano α=0.2). 17 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°
3,4°C
Annual rain
539mm
Moisture idx (CMI)
-0,27
Runoff
97mm/an
PET
743mm
AET
454mm
Mean slope
1,3°
Water table
83cm
Forest
3%
Crops
65%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)