HydroBASINS lev08 watershed · #2080375440
Bassin de Warta
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 : Jarocin, Krotoszyn, Ostrów Wielkopolski, Pleszew, Września +2
Sub-basin area
844,2km²
Upstream area
21 950,7km²
Discharge
84,95m³/s
Mean elev.
101m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Prosna948 km²
- Bassin de Wrześnica632 km²
7 dept-equivalent regions (GADM L2)
- Jarocin313.6 km²37.0% of basin
- Środa Wielkopolska195.1 km²23.0% of basin
- Września108.4 km²12.8% of basin
- Pleszew98.1 km²11.6% of basin
- Śrem94.4 km²11.1% of basin
- Ostrów Wielkopolski27.3 km²3.2% of basin
- Krotoszyn10.6 km²1.2% of basin
15 intersecting protected areas
Szwajcaria Żerkowska
IUCN Not AssignedProtected Landscape Area
147.38 km² overlap
Landscape Park
145.07 km² overlap
Dolina Środkowej Warty
IUCN Not ReportedSpecial Protection Area (Birds Directive)
90.90 km² overlap
Lasy Żerkowsko-Czeszewskie
IUCN Not ReportedSite of Community Importance (Habitats Directive)
67.09 km² overlap
Dąbrowy Krotoszyńskie Baszków-Rochy
IUCN Not AssignedProtected Landscape Area
49.00 km² overlap
Uroczyska Płyty Krotoszyńskiej
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
41.40 km² overlap
Dąbrowy Krotoszyńskie
IUCN Not ReportedSpecial Protection Area (Birds Directive)
41.40 km² overlap
Ostoja Nadwarciańska
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.84 km² overlap
Rogalińska Dolina Warty
IUCN Not ReportedSite of Community Importance (Habitats Directive)
6.68 km² overlap
6 more protected areassorted by overlap area
Ostoja Rogalińska
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.68 km² overlap
Czeszewski Las
IUCN IVNature Reserve
5.35 km² overlap
Pyzdrski
IUCN Not AssignedProtected Landscape Area
3.04 km² overlap
Landscape Park
2.82 km² overlap
Dębno nad Wartą
IUCN IVNature Reserve
0.22 km² overlap
Dwunastak
IUCN IVNature Reserve
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 071 distinct species · 45 396 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Warta : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 4 types (connectance 7.1%, filtre Serrano α=0.2). 3 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
521mm
Moisture idx (CMI)
-0,31
Runoff
109mm/an
PET
758mm
AET
445mm
Mean slope
0,7°
Water table
111cm
Forest
8%
Crops
62%
Urban
3%
Protected
29%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)