HydroBASINS lev08 watershed · #2080310090
Bassin de Siesartis
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 : Anykščių, Jonavos, Molėtų, Ukmergės, Širvintų
Sub-basin area
1 583,8km²
Upstream area
5 869,2km²
Discharge
41,47m³/s
Mean elev.
105m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Šventoji651 km²
- Bassin de Virinta548 km²
5 dept-equivalent regions (GADM L2)
- 1092.3 km²68.7% of basin
- 216.2 km²13.6% of basin
- 172.3 km²10.8% of basin
- 96.2 km²6.0% of basin
- 13.9 km²0.9% of basin
30 intersecting protected areas
Biosphere polygon
98.27 km² overlap
Taujėnų - Užulėnio miškai
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
98.27 km² overlap
Taujėnų - Užulėnio miškai
IUCN Not ReportedSpecial Protection Area (Birds Directive)
98.27 km² overlap
State Park
20.96 km² overlap
Šventosios upės vidurupis
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.41 km² overlap
Nature Reserve
7.89 km² overlap
Nature Reserve
7.46 km² overlap
Viliukų miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.62 km² overlap
Biosphere polygon
4.81 km² overlap
21 more protected areassorted by overlap area
Siesarties upė ties Valais
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.08 km² overlap
Nature Reserve
4.06 km² overlap
Šešuolių giria
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.70 km² overlap
Vilkaraisčio miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.99 km² overlap
Nature Reserve
2.98 km² overlap
Siesarties upė ir jos slėnis II
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.90 km² overlap
Nature Reserve
2.34 km² overlap
Siesarties upė ir jos slėnis
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.27 km² overlap
Žuvintės upė ir jos slėniai
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.20 km² overlap
Baldono ežero apylinkės
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.98 km² overlap
Nature Reserve
1.97 km² overlap
Nature Reserve
1.79 km² overlap
Laukėnų apylinkės
IUCN Not ReportedSite of Community Importance (Habitats Directive)
1.73 km² overlap
Petrašiūnų miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.73 km² overlap
Nature Reserve
1.46 km² overlap
Vilkatėnų miškas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.18 km² overlap
Kazimieravos pelkė
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.77 km² overlap
Nature Reserve
0.73 km² overlap
Nature Reserve
0.57 km² overlap
Paąžuolynės durpynas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.57 km² overlap
Anykščių šilelis
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.47 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 225 distinct species · 28 212 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 1 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 Siesartis : 0 espèces reliées par 0 interaction GloBI sur 0 type (connectance 0.0%, filtre Serrano α=0.2). 1 bulle taxonomique (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
622mm
Moisture idx (CMI)
-0,07
Runoff
209mm/an
PET
667mm
AET
498mm
Mean slope
1,1°
Water table
134cm
Forest
11%
Crops
65%
Urban
1%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)