HydroBASINS lev08 watershed · #2080387590
Bassin de Ołobok
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 : Kalisz, Krotoszyn, Ostrzeszów, Ostrów Wielkopolski, Pleszew
Sub-basin area
418,7km²
Upstream area
418,7km²
Discharge
1,54m³/s
Mean elev.
142m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Ostrów Wielkopolski367.0 km²87.3% of basin
- Ostrzeszów50.8 km²12.1% of basin
- Krotoszyn2.0 km²0.5% of basin
- 0.4 km²0.1% of basin
- Pleszew0.0 km²0.0% of basin
7 intersecting protected areas
Wzgórza Ostrzeszowskie i Kotlina Odolanowska (woj. wielkopolskie)
IUCN Not AssignedProtected Landscape Area
45.30 km² overlap
Dolina Prosny
IUCN Not AssignedProtected Landscape Area
24.92 km² overlap
Dąbrowy Krotoszyńskie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.90 km² overlap
Uroczyska Płyty Krotoszyńskiej
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.90 km² overlap
Dąbrowy Krotoszyńskie Baszków-Rochy
IUCN Not AssignedProtected Landscape Area
15.26 km² overlap
Niwa
IUCN IVNature Reserve
0.17 km² overlap
Majówka
IUCN IVNature Reserve
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 044 distinct species · 20 529 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Ołobok : 19 espèces reliées par 59 interactions GloBI sur 3 types (connectance 19.7%, 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°
8,3°C
Annual rain
524mm
Moisture idx (CMI)
-0,31
Runoff
117mm/an
PET
761mm
AET
448mm
Mean slope
0,9°
Water table
133cm
Forest
7%
Crops
63%
Urban
9%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)