Ontologia

Subdivision · FIN

Polvijärvi

Finland

DfcCold, no dry season, cold summer(94 %)

Species observed

2 468

Observations

48 134

Area

958,2km²

Ecological tissue

Sample of 39 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 Polvijärvi : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 105 interactions GloBI sur 5 types (connectance 14.2%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
105
Connectance
0.142
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

2 468 distinct species · 48 134 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

48 134 obs · 34 cellules
Obs. / cellule
≥ 9 972
2 817–9 971
1 349–2 816
1 038–1 348
< 1 038

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

Climate

Mean T°

2,9°C

Annual rain

802mm

Warmest m°

19,6°C

Coldest m°

-11,5°C

Elevation: 111 m on average (min 78 m, max 231 m)

Bioclimatic detailsExpert
Annual mean temp.
2,9°C
Annual rain
802mm
Warmest month
19,6°C
Coldest month
-11,5°C
Mean alt.
111m
Min
78m
Max
231m
Std. dev.
27m
Köppen-Geiger (dominant)
DfcCold, no dry season, cold summer(94 %)Cold

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

Soil & lithology

pH H₂O

4,7

Org. C

151,4g/kg

Clay

12,1%

Sand

53,4%

Silt

34,5%

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

Dominant lithology: mtGLiMaggregated to North Karelia

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,6
Org. C
281,9g/kg
Clay
13,1%
Sand
52,4%
Silt
34,4%
5–15 cm
pH H₂O
4,6
Org. C
130,3g/kg
Clay
13,1%
Sand
52,8%
Silt
34,2%
15–30 cm
pH H₂O
4,9
Org. C
41,9g/kg
Clay
10,1%
Sand
55,1%
Silt
34,8%

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

Land cover

Forest62.7%
Crops1.7%
Built-up0.0%
Bare soil0.1%
Other (grassland, water…)35.5%

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

Hydrology8 basins · 17 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

113,6km

Lake surface here

152,49km²

Basins crossed

8

Max stream order

4

Max drainage

4 054km²

Discharge in basins

29,3m³/s

Mean precip.

623mm/an

Mean T°

2,3°C

Moisture idx

0,18

Max snow

55%

Mean runoff

362mm/an

Mean elev. (basins)

112m

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

0,1nW

Built-up

1,9%

Pesticides

3,1kg/km²

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

Protected areas61

IUCN IV · 47IUCN Not Assigned · 8IUCN Not Reported · 5IUCN Ib · 1

Viklinrimpi

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2015

15 km²

Viklinrimpi

IUCN Not Reported

Special Protection Area (Birds Directive) · 2005

15 km²

Complete list

+ 1 protected areas (top 60 shown)

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