HydroBASINS lev08 watershed · #2080282980
Bassin de Vircava
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 5 administrative regions across 2 countries : Bauska, Jelgava, Joniškio, Pakruojo, Pasvalio
Sub-basin area
2 280,9km²
Upstream area
11 828,8km²
Discharge
79,73m³/s
Mean elev.
35m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tatula1248 km²
- Bassin de Mēmele420 km²
5 dept-equivalent regions (GADM L2)
- 679.8 km²29.7% of basin
- 608.8 km²26.6% of basin
- 496.3 km²21.7% of basin
- 450.7 km²19.7% of basin
- 56.2 km²2.5% of basin
30 intersecting protected areas
Bauska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.73 km² overlap
Bauska
IUCN IINature Park
8.73 km² overlap
Nature Reserve
6.45 km² overlap
Laumenio miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.45 km² overlap
Lielupes palienes pļavas
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.23 km² overlap
Lielupes palienes pļavas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.23 km² overlap
Lielupes palienes pļavas
IUCN IVNature Reserve
3.23 km² overlap
Mūšos Tyrelio miškas II
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.22 km² overlap
Laumekių miškas
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.05 km² overlap
21 more protected areassorted by overlap area
Nature Reserve
1.65 km² overlap
Vilkiaušio miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.39 km² overlap
Skursteņu platlapju meži
IUCN IVNature Reserve
1.39 km² overlap
Satkūnų miškas
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.07 km² overlap
Nature Reserve
0.96 km² overlap
Sodzera meži
IUCN IVNature Reserve
0.95 km² overlap
Nature Reserve
0.83 km² overlap
Grūžių apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.55 km² overlap
Nature Reserve
0.44 km² overlap
Ozoldārzs
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.18 km² overlap
Ozoldārzs
IUCN IVMicro-reserve
0.18 km² overlap
Elejas muižas parks
IUCN IIINature Monument
0.17 km² overlap
Nature Reserve
0.14 km² overlap
Jumpravas dolomīta atsegums
IUCN IIINature Monument
0.06 km² overlap
Blankenfeldes muižas aleja
IUCN IIINature Monument
0.04 km² overlap
Lielbērsteles parks
IUCN IIINature Monument
0.04 km² overlap
Elejas alejas
IUCN IIINature Monument
0.04 km² overlap
Īslīce
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Īslīce
IUCN IVNature Reserve
0.02 km² overlap
Nature Monument
0.02 km² overlap
Lielplatones muižas liepu aleja
IUCN IIINature Monument
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 655 distinct species · 6 293 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 Vircava : 38 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 5 types (connectance 6.2%, 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°
6,4°C
Annual rain
631mm
Moisture idx (CMI)
0,03
Runoff
219mm/an
PET
609mm
AET
473mm
Mean slope
0,4°
Water table
19cm
Forest
5%
Crops
80%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)