HydroBASINS lev08 watershed · #2080399530
Bassin de Widawa
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 9 administrative regions : Brzeg, Kępno, Namysłów, Oleśnica, Ostrzeszów +4
Sub-basin area
1 765,2km²
Upstream area
1 765,3km²
Discharge
7,48m³/s
Mean elev.
162m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
9 dept-equivalent regions (GADM L2)
- Oleśnica752.0 km²42.4% of basin
- 304.4 km²17.2% of basin
- 250.9 km²14.2% of basin
- Kępno198.9 km²11.2% of basin
- Oława119.4 km²6.7% of basin
- Trzebnica85.3 km²4.8% of basin
- 51.1 km²2.9% of basin
- Ostrzeszów5.5 km²0.3% of basin
1 moreFull L2 list
- Brzeg4.2 km² · 0.2%
17 intersecting protected areas
Lasy Grędzińskie
IUCN Not ReportedSite of Community Importance (Habitats Directive)
30.91 km² overlap
Lasy Stobrawsko - Turawskie
IUCN Not AssignedProtected Landscape Area
28.36 km² overlap
Kumaki Dobrej
IUCN Not ReportedSite of Community Importance (Habitats Directive)
20.96 km² overlap
Dolina Oleśnicy i Potoku Boguszyckiego
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
11.20 km² overlap
Wzgórza Ostrzeszowskie i Kotlina Odolanowska (woj. wielkopolskie)
IUCN Not AssignedProtected Landscape Area
5.51 km² overlap
Dolina Widawy
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.39 km² overlap
Landscape Park
4.24 km² overlap
Wzgórza Ostrzeszowskie i Kotlina Odolanowska (woj. dolnośląskie)
IUCN Not AssignedProtected Landscape Area
3.31 km² overlap
Wzgórza Trzebnickie
IUCN Not AssignedProtected Landscape Area
3.12 km² overlap
8 more protected areassorted by overlap area
Bierutów
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.26 km² overlap
Lasy Barucickie
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.23 km² overlap
Stawy w Borowej
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.89 km² overlap
Las Bukowy w Skarszynie
IUCN IVNature Reserve
0.24 km² overlap
Bór Jodłowy w Goli
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.08 km² overlap
Gola
IUCN IVNature Reserve
0.08 km² overlap
Studnica
IUCN IVNature Reserve
0.05 km² overlap
Torfowisko koło Grabowna
IUCN IVNature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 658 distinct species · 69 856 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 Widawa : 33 espèces reliées par 111 interactions GloBI sur 6 types (connectance 15.0%, 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°
8,2°C
Annual rain
560mm
Moisture idx (CMI)
-0,27
Runoff
134mm/an
PET
764mm
AET
478mm
Mean slope
0,8°
Water table
100cm
Forest
12%
Crops
55%
Urban
6%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)