HydroBASINS lev08 watershed · #2080374110

Bassin de Wrześnica

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 6 administrative regions : Gniezno, Konin, Pleszew, Poznań, Słupca +1

Pfafstetter: 24229010

Sub-basin area

632,4km²

Upstream area

16 269,4km²

Discharge

64,24m³/s

Mean elev.

100m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Warta844 km²

▲ Receives from 2 basins

Bassin de Struga Witkowska688 km²
Bassin de Warta34 km²

6 dept-equivalent regions (GADM L2)

Września
Wielkopolskie · Poland
280.3 km²
44.1% of basin
Gniezno
Wielkopolskie · Poland
201.5 km²
31.7% of basin
Słupca
Wielkopolskie · Poland
102.9 km²
16.2% of basin
Pleszew
Wielkopolskie · Poland
38.4 km²
6.0% of basin
Poznań
Wielkopolskie · Poland
6.7 km²
1.0% of basin
Konin
Wielkopolskie · Poland
5.1 km²
0.8% of basin

10 intersecting protected areas

Pyzdrski
IUCN Not Assigned
Protected Landscape Area
161.20 km² overlap
Ostoja Nadwarciańska
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
89.20 km² overlap
Nadwarciański Park Krajobrazowy
IUCN V
Landscape Park
59.28 km² overlap
Dolina Środkowej Warty
IUCN Not Reported
Special Protection Area (Birds Directive)
51.67 km² overlap
Grądy w Czerniejewie
IUCN Not Reported
Site of Community Importance (Habitats Directive)
11.85 km² overlap
Park Krajobrazowy Promno
IUCN V
Landscape Park
6.62 km² overlap
Puszcza Pyzdrska
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.29 km² overlap
Bielawy
IUCN IV
Nature Reserve
0.20 km² overlap
Wiązy w Nowym Lesie
IUCN IV
Nature Reserve
0.07 km² overlap

1 more protected areassorted by overlap area

Modrzew Polski w Noskowie
IUCN IV
Nature Reserve
0.01 km² overlap

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

Species present

1 476 distinct species · 28 743 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Wrześnica : 25 espèces reliées par 73 interactions GloBI sur 5 types (connectance 18.0%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.180

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°

8,2°C

Annual rain

522mm

Moisture idx (CMI)

-0,30

Runoff

104mm/an

PET

750mm

AET

447mm

Mean slope

0,5°

Water table

63cm

Forest

17%

Crops

59%

Urban

Protected

25%

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