HydroBASINS lev08 watershed · #2080287350
Bassin de Viesīte
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
475,6km²
Upstream area
475,7km²
Discharge
3,6m³/s
Mean elev.
87m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 304.6 km²63.8% of basin
- 173.2 km²36.2% of basin
16 intersecting protected areas
Aklais purvs
IUCN Not ReportedSpecial Protection Area (Birds Directive)
19.14 km² overlap
Aklais purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.14 km² overlap
Aklais purvs
IUCN IVNature Reserve
19.14 km² overlap
Krācējgrāvja staignāju meži
IUCN IVNature Reserve
14.51 km² overlap
Slapjo salu purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.53 km² overlap
Slapjo salu purvs
IUCN IVNature Reserve
6.52 km² overlap
Jūgupes meži
IUCN IVNature Reserve
5.31 km² overlap
Nomavas purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.06 km² overlap
Nomavas purvs
IUCN IVNature Reserve
4.06 km² overlap
7 more protected areassorted by overlap area
Dzilnas dumbrāji
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.15 km² overlap
Dzilnas dumbrāji
IUCN IVNature Reserve
2.15 km² overlap
Zaķu riests
IUCN IVNature Reserve
1.37 km² overlap
Zaķu riests
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.37 km² overlap
Mazzalvītes purvs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.48 km² overlap
Mazzalvītes purvs
IUCN IVNature Reserve
0.48 km² overlap
Iecavas paliene
IUCN IVNature Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
300 distinct species · 601 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Viesīte : 24 espèces reliées par 59 interactions GloBI sur 5 types (connectance 11.9%, filtre Serrano α=0.2). 8 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°
5,7°C
Annual rain
649mm
Moisture idx (CMI)
0,03
Runoff
239mm/an
PET
626mm
AET
478mm
Mean slope
1,1°
Water table
47cm
Forest
68%
Crops
4%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)