HydroBASINS lev08 watershed · #2080292650
Bassin de Dubna
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 : Daugavpils, Kraslava, Preili
Sub-basin area
312,2km²
Upstream area
987,9km²
Discharge
8,4m³/s
Mean elev.
141m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tartaka377 km²
- Bassin de Tartaks298 km²
3 dept-equivalent regions (GADM L2)
- 201.4 km²64.2% of basin
- 93.8 km²29.9% of basin
- 18.6 km²5.9% of basin
1 intersecting protected areas
Nature Monument
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
511 distinct species · 925 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 51 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 Dubna : 38 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 104 interactions GloBI sur 5 types (connectance 8.2%, 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°
5,4°C
Annual rain
650mm
Moisture idx (CMI)
0,03
Runoff
259mm/an
PET
633mm
AET
488mm
Mean slope
1,3°
Water table
112cm
Forest
16%
Crops
33%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)