HydroBASINS lev08 watershed · #2080324470
Bassin de Verseka
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 4 administrative regions across 2 countries : Trakų, Varėnos, Voranava, Šalčininkų
Sub-basin area
756,1km²
Upstream area
1 987,2km²
Discharge
13,35m³/s
Mean elev.
148m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Lukna461 km²
- Bassin de Šalčia130 km²
4 dept-equivalent regions (GADM L2)
- 418.8 km²55.2% of basin
- ŠalčininkųVilniaus · Lithuania238.3 km²31.4% of basin
- 68.8 km²9.1% of basin
- 33.4 km²4.4% of basin
11 intersecting protected areas
Merkio upė
IUCN Not ReportedSite of Community Importance (Habitats Directive)
10.14 km² overlap
Nature Reserve
9.14 km² overlap
Nature Reserve
7.70 km² overlap
Nature Reserve
3.78 km² overlap
Spenglos upė ir jos slėnis
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.54 km² overlap
Nature Reserve
2.54 km² overlap
Versekos upė
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.53 km² overlap
Akmens geologinis draustinis
IUCN IVNature Reserve
0.66 km² overlap
Merkio ir Šalčios upių santaka
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.54 km² overlap
2 more protected areassorted by overlap area
Versekos upės slėnis ties Krūminiais
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.50 km² overlap
Nature Reserve
0.42 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
998 distinct species · 2 752 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Verseka : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 4 types (connectance 8.4%, 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°
6,1°C
Annual rain
660mm
Moisture idx (CMI)
-0,05
Runoff
207mm/an
PET
693mm
AET
521mm
Mean slope
1,1°
Water table
81cm
Forest
43%
Crops
31%
Urban
1%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)