HydroBASINS lev08 watershed · #2080384990

Bassin de Trojanówka

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, Kalisz (City), Ostrzeszów, Sieradz, Turek

2% lakePfafstetter: 24228002

Sub-basin area

1 021,9km²

Upstream area

1 022,1km²

Discharge

3,63m³/s

Mean elev.

140m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Prosna948 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

Kalisz
Wielkopolskie · Poland
605.9 km²
59.1% of basin
Sieradz
Łódzkie · Poland
345.6 km²
33.7% of basin
Turek
Wielkopolskie · Poland
61.9 km²
6.0% of basin
Kalisz (City)
Wielkopolskie · Poland
9.0 km²
0.9% of basin
Ostrzeszów
Wielkopolskie · Poland
3.4 km²
0.3% of basin

8 intersecting protected areas

Dolina rzeki Swędrni w okolicach Kalisza
IUCN Not Assigned
Protected Landscape Area
64.31 km² overlap
Brąszewicki
IUCN Not Assigned
Protected Landscape Area
36.44 km² overlap
Dolina Swędrni
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
12.92 km² overlap
Lipickie Mokradła
IUCN Not Reported
Site of Community Importance (Habitats Directive)
3.70 km² overlap
Wrząca
IUCN IV
Nature Reserve
0.60 km² overlap
Olbina
IUCN IV
Nature Reserve
0.08 km² overlap
Torfowisko Lis
IUCN IV
Nature Reserve
0.05 km² overlap
Brzeziny
IUCN IV
Nature Reserve
0.05 km² overlap

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

Species present

1 133 distinct species · 6 428 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 42 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 Trojanówka : 33 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 111 interactions GloBI sur 6 types (connectance 11.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

111

Connectance

0.117

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

524mm

Moisture idx (CMI)

-0,31

Runoff

114mm/an

PET

765mm

AET

448mm

Mean slope

0,7°

Water table

126cm

Forest

Crops

69%

Urban

Protected

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