Ontologia

Commune · POL

Bierzwnik

Poland

DfbCold, no dry season, warm summer(97 %)

Species observed

377

Observations

4 021

Area

239,1km²

Ecological tissue

Sample of 38 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

Indicateurs du tissu écologique

Tissu écologique de Bierzwnik : 30 espèces reliées par 75 interactions GloBI sur 7 types (connectance 10.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
75
Connectance
0.101
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

377 distinct species · 4 021 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 021 obs · 7 cellules
Obs. / cellule
≥ 3 158
3 158–3 157
201–3 157
166–200
< 166

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

8,7°C

Annual rain

645mm

Warmest m°

22,5°C

Coldest m°

-3,0°C

Elevation: 80 m on average (min 63 m, max 101 m)

Bioclimatic detailsExpert
Annual mean temp.
8,7°C
Annual rain
645mm
Warmest month
22,5°C
Coldest month
-3,0°C
Mean alt.
80m
Min
63m
Max
101m
Std. dev.
8m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(97 %)Cold

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,3

Org. C

37,7g/kg

Clay

8,2%

Sand

72,4%

Silt

19,5%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: suGLiMaggregated to Choszczno

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
60,6g/kg
Clay
7,9%
Sand
72,7%
Silt
19,4%
5–15 cm
pH H₂O
5,2
Org. C
30,4g/kg
Clay
6,5%
Sand
73,9%
Silt
19,6%
15–30 cm
pH H₂O
5,5
Org. C
22,0g/kg
Clay
10,1%
Sand
70,4%
Silt
19,5%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest48.7%
Crops30.3%
Built-up0.2%
Bare soil0.3%
Other (grassland, water…)20.5%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology3 basins · 17 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

41,1km

Lake surface here

7,38km²

Basins crossed

3

Max stream order

3

Max drainage

2 311km²

Discharge in basins

1,4m³/s

Mean precip.

577mm/an

Mean T°

8,3°C

Moisture idx

-0,19

Max snow

34%

Mean runoff

164mm/an

Mean elev. (basins)

80m

Watersheds crossing here

Lakes (17, top by area)

8 more lakes

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

19,2%

Pesticides

15,6kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas10

IUCN IV · 4IUCN Not Reported · 3IUCN Not Assigned · 2IUCN II · 1

F (Bierzwnik)

IUCN Not Assigned

Protected Landscape Area · 1998

285 km²

Lasy Bierzwnickie

IUCN Not Reported

Site of Community Importance (Habitats Directive) · 2009

88 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN