HydroBASINS lev08 watershed · #2080326060
Bassin de Ūla
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 : Lida, Shchuchyn, Varėnos, Voranava
Sub-basin area
790km²
Upstream area
790km²
Discharge
5,01m³/s
Mean elev.
144m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 523.5 km²66.0% of basin
- 236.4 km²29.8% of basin
- 30.7 km²3.9% of basin
- 2.9 km²0.4% of basin
16 intersecting protected areas
Dzūkijos nacionalinis parkas
IUCN IIState Park
88.77 km² overlap
Dainavos giria
IUCN Not ReportedSpecial Protection Area (Birds Directive)
88.77 km² overlap
Dainavos giria
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
85.88 km² overlap
Čepkelių pelkė
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
63.41 km² overlap
Kaniavos miškai
IUCN Not ReportedSite of Community Importance (Habitats Directive)
57.04 km² overlap
Čepkelių pelkė
IUCN Not ReportedSpecial Protection Area (Birds Directive)
48.15 km² overlap
State Strict Reserve
47.81 km² overlap
Nature Reserve
42.39 km² overlap
Cepkeliai
IUCN Not ReportedWetland of International Importance (Ramsar Site)
38.77 km² overlap
7 more protected areassorted by overlap area
Kotra
IUCN IVWetland of International Importance (Ramsar Site)
20.32 km² overlap
Ūlos upė
IUCN Not ReportedSite of Community Importance (Habitats Directive)
4.34 km² overlap
Karaviškių miškas
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.43 km² overlap
Nature Reserve
1.95 km² overlap
Stojų pievos
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.93 km² overlap
Nature Reserve
0.26 km² overlap
Merkio upė
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 454 distinct species · 7 467 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 Ūla : 9 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 4 types (connectance 15.2%, filtre Serrano α=0.2). 6 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°
6,2°C
Annual rain
651mm
Moisture idx (CMI)
-0,07
Runoff
200mm/an
PET
703mm
AET
523mm
Mean slope
1,0°
Water table
75cm
Forest
51%
Crops
25%
Urban
0%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)