HydroBASINS lev08 watershed · #2080374560
Bassin de Jeziorka
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 : Białobrzegi, Grodzisk Mazowiecki, Grójec, Piaseczno, Rawa +2
Sub-basin area
836,7km²
Upstream area
836,8km²
Discharge
3,71m³/s
Mean elev.
138m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- Grójec413.4 km²49.2% of basin
- Piaseczno373.8 km²44.5% of basin
- Żyrardów40.1 km²4.8% of basin
- Warszawa6.9 km²0.8% of basin
- Białobrzegi3.7 km²0.4% of basin
- Grodzisk Mazowiecki1.2 km²0.1% of basin
- 0.8 km²0.1% of basin
22 intersecting protected areas
Warszawski
IUCN Not AssignedProtected Landscape Area
155.44 km² overlap
Dolina Rzeki Jeziorki
IUCN Not AssignedProtected Landscape Area
138.46 km² overlap
Landscape Park
63.82 km² overlap
Bolimowsko-Radziejowicki z doliną Środkowej Rawki (woj. mazowieckie)
IUCN Not AssignedProtected Landscape Area
28.68 km² overlap
Nature Reserve
3.78 km² overlap
Łąki Soleckie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.22 km² overlap
Modrzewina
IUCN IVNature Reserve
2.03 km² overlap
Stawy w Żabieńcu
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.05 km² overlap
Uroczysko Stephana
IUCN IVNature Reserve
0.62 km² overlap
13 more protected areassorted by overlap area
Grądy Osuchowskie
IUCN IVNature Reserve
0.60 km² overlap
Łęgacz nad Jeziorką
IUCN IVNature Reserve
0.39 km² overlap
Dolina Środkowej Wisły
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.21 km² overlap
Wyspy Zawadowskie
IUCN IVNature Reserve
0.16 km² overlap
Biele Chojnowskie
IUCN IVNature Reserve
0.14 km² overlap
Las Pęcherski
IUCN IVNature Reserve
0.14 km² overlap
Chojnów
IUCN IVNature Reserve
0.12 km² overlap
Łoś
IUCN IVNature Reserve
0.11 km² overlap
Skarpa Jeziorki
IUCN IVNature Reserve
0.07 km² overlap
Jeziora - Olszyny
IUCN IVNature Reserve
0.06 km² overlap
Obory
IUCN IVNature Reserve
0.06 km² overlap
Pilawski Grąd
IUCN IVNature Reserve
0.04 km² overlap
Łęgi Oborskie
IUCN IVNature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 413 distinct species · 22 836 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 Jeziorka : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 4 types (connectance 12.4%, filtre Serrano α=0.2). 7 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°
7,7°C
Annual rain
524mm
Moisture idx (CMI)
-0,28
Runoff
140mm/an
PET
733mm
AET
450mm
Mean slope
0,7°
Water table
88cm
Forest
8%
Crops
57%
Urban
14%
Protected
30%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)