HydroBASINS lev08 watershed · #2080289180
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 2 administrative regions : Daugavpils, Preili
Sub-basin area
481,5km²
Upstream area
1 694,7km²
Discharge
14,51m³/s
Mean elev.
106m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Dubna312 km²
- Bassin de Jaša225 km²
2 dept-equivalent regions (GADM L2)
- 308.4 km²63.7% of basin
- 175.4 km²36.3% of basin
12 intersecting protected areas
Ašenieku purvs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.40 km² overlap
Ašenieku purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.40 km² overlap
Ašenieku purvs
IUCN IVNature Reserve
8.38 km² overlap
Dubnas paliene
IUCN IVNature Reserve
3.77 km² overlap
Dubnas paliene
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.77 km² overlap
Dubnas paliene
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.77 km² overlap
Tīras sūnas purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.28 km² overlap
Tīrās sūnas purvs
IUCN IVNature Reserve
0.28 km² overlap
Nīcgales meži
IUCN VProtected Landscape Area
0.15 km² overlap
3 more protected areassorted by overlap area
Nīcgales meži
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
Vārkavas parks
IUCN IIINature Monument
0.03 km² overlap
Grancovas aleja
IUCN IIINature Monument
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
677 distinct species · 1 321 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 5 types (connectance 14.3%, filtre Serrano α=0.2). 9 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°
5,6°C
Annual rain
653mm
Moisture idx (CMI)
0,03
Runoff
274mm/an
PET
634mm
AET
487mm
Mean slope
0,8°
Water table
45cm
Forest
29%
Crops
49%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)