HydroBASINS lev08 watershed · #2080283960
Bassin de Daugava
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 : Aizkraukle, Jekabpils
Sub-basin area
263,4km²
Upstream area
80 321,2km²
Discharge
620,13m³/s
Mean elev.
94m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Aiviekste2384 km²
- Bassin de Daugava1565 km²
2 dept-equivalent regions (GADM L2)
- 213.3 km²80.6% of basin
- 51.4 km²19.4% of basin
9 intersecting protected areas
Koknese-Odziena
IUCN VProtected Landscape Area
75.74 km² overlap
Klintaine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.83 km² overlap
Klintaine
IUCN IVNature Reserve
0.83 km² overlap
Nature Monument
0.12 km² overlap
Staburags
IUCN IIINature Monument
0.08 km² overlap
Vecsēlpils
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.05 km² overlap
Vecsēlpils
IUCN IVMicro-reserve
0.05 km² overlap
Kokneses parks
IUCN IIINature Monument
0.05 km² overlap
Nature Monument
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
719 distinct species · 1 238 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Daugava : 27 espèces reliées par 71 interactions GloBI sur 3 types (connectance 10.7%, filtre Serrano α=0.2). 10 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
663mm
Moisture idx (CMI)
0,07
Runoff
256mm/an
PET
618mm
AET
477mm
Mean slope
1,5°
Water table
106cm
Forest
26%
Crops
15%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)