HydroBASINS lev08 watershed · #2080371210

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 4 administrative regions : Kościan, Poznań, Śrem, Środa Wielkopolska

5% lakePfafstetter: 24227070

Sub-basin area

594,9km²

Upstream area

23 204,4km²

Discharge

88,91m³/s

Mean elev.

76m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Warta1412 km²

▲ Receives from 2 basins

Bassin de Warta844 km²
Bassin de Wielka659 km²

4 dept-equivalent regions (GADM L2)

Śrem
Wielkopolskie · Poland
347.4 km²
58.2% of basin
Poznań
Wielkopolskie · Poland
136.6 km²
22.9% of basin
Kościan
Wielkopolskie · Poland
99.9 km²
16.7% of basin
Środa Wielkopolska
Wielkopolskie · Poland
13.3 km²
2.2% of basin

10 intersecting protected areas

Rogalińska Dolina Warty
IUCN Not Reported
Site of Community Importance (Habitats Directive)
122.33 km² overlap
Ostoja Rogalińska
IUCN Not Reported
Special Protection Area (Birds Directive)
117.94 km² overlap
Rogaliński Park Krajobrazowy
IUCN V
Landscape Park
107.35 km² overlap
Park Krajobrazowy im. Gen. Dezyderego Chłapowskiego
IUCN V
Landscape Park
60.26 km² overlap
Krzywińsko-Osiecki wraz z zadrzewieniami generała Dezyderego Chłapowskiego i kompleksem leśnym Osieczna-Góra (woj. wielkop.)
IUCN Not Assigned
Protected Landscape Area
10.21 km² overlap
Obszar Chronionego Krajobrazu w gminie Kórnik
IUCN Not Assigned
Protected Landscape Area
5.48 km² overlap
Krajkowo
IUCN IV
Nature Reserve
1.65 km² overlap
Będlewo-Bieczyny
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.30 km² overlap
Czmoń
IUCN IV
Nature Reserve
0.24 km² overlap

1 more protected areassorted by overlap area

Goździk Siny w Grzybnie
IUCN IV
Nature Reserve
0.05 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

2 212 distinct species · 22 409 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 40 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Warta : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 5 types (connectance 13.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

102

Connectance

0.131

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

8,4°C

Annual rain

522mm

Moisture idx (CMI)

-0,31

Runoff

108mm/an

PET

754mm

AET

447mm

Mean slope

0,8°

Water table

76cm

Forest

15%

Crops

54%

Urban

Protected

28%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)