HydroBASINS lev08 watershed · #2080450950
Bassin de Свірж
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 7 administrative regions : Dolyns'kyi, Halyts'kyi, Kalus'kyi, Peremyshlians'kyi, Rohatyns'kyi +2
Sub-basin area
1 334,5km²
Upstream area
12 779,9km²
Discharge
116,04m³/s
Mean elev.
311m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Свіча1593 km²
- Bassin de Бережниця1014 km²
7 dept-equivalent regions (GADM L2)
- 407.8 km²30.5% of basin
- 327.6 km²24.5% of basin
- 147.7 km²11.0% of basin
- 147.5 km²11.0% of basin
- 124.6 km²9.3% of basin
- 120.7 km²9.0% of basin
- 63.1 km²4.7% of basin
28 intersecting protected areas
Halytskyi National Nature Park
IUCN Not ReportedEmerald Network
26.91 km² overlap
Halytskyi
IUCN Not ReportedNational nature park
24.96 km² overlap
Dniester river valley in Lviv region
IUCN Not ReportedEmerald Network
14.12 km² overlap
Svirzhskyi
IUCN Not ReportedZakaznyk
4.51 km² overlap
Dnister River Valley
IUCN IIWetland of International Importance (Ramsar Site)
2.16 km² overlap
Konvaliia
IUCN Not ReportedZakaznyk
0.64 km² overlap
Zhuravenkivskyi
IUCN Not ReportedZakaznyk
0.48 km² overlap
Dovhyi mist
IUCN Not ReportedNatural monument
0.42 km² overlap
Kopanky
IUCN Not ReportedNatural monument
0.40 km² overlap
19 more protected areassorted by overlap area
Bubonets
IUCN Not ReportedZakaznyk
0.26 km² overlap
Kozarivske
IUCN Not ReportedZapovidne urochyshche
0.26 km² overlap
Zhuravenkivske
IUCN Not ReportedZapovidne urochyshche
0.23 km² overlap
Yaskiv potik
IUCN Not ReportedZakaznyk
0.21 km² overlap
Kozarivske
IUCN Not ReportedZapovidne urochyshche
0.18 km² overlap
Kozarivske
IUCN Not ReportedZapovidne urochyshche
0.18 km² overlap
Nadiiv
IUCN Not ReportedZapovidne urochyshche
0.18 km² overlap
Dubove
IUCN Not ReportedZapovidne urochyshche
0.16 km² overlap
Pidlis
IUCN Not ReportedZapovidne urochyshche
0.11 km² overlap
Romanivskyi
IUCN Not ReportedZakaznyk
0.10 km² overlap
Berezyna
IUCN Not ReportedZapovidne urochyshche
0.08 km² overlap
Pid Verkhovynoiu
IUCN Not ReportedZakaznyk
0.08 km² overlap
Rykhiv potik
IUCN Not ReportedZapovidne urochyshche
0.06 km² overlap
Vidklady kreidovykh porid, vidslonenykh v beseini r. Dnister, bilia smt Zhuravno i Stare Selo
IUCN Not ReportedNatural monument
0.04 km² overlap
Rakhynia
IUCN Not ReportedZapovidne urochyshche
0.04 km² overlap
Pid hayem
IUCN Not ReportedZapovidne urochyshche
0.03 km² overlap
Vysoka hora
IUCN Not ReportedNatural monument
0.02 km² overlap
Vysochanski duby
IUCN Not ReportedNatural monument
0.01 km² overlap
Hrupa vikovykh dubiv i lyp
IUCN Not ReportedNatural monument
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 092 distinct species · 3 180 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Свірж : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 3 types (connectance 14.1%, filtre Serrano α=0.2). 5 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°
7,8°C
Annual rain
695mm
Moisture idx (CMI)
-0,09
Runoff
225mm/an
PET
761mm
AET
585mm
Mean slope
2,7°
Water table
257cm
Forest
11%
Crops
37%
Urban
5%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)