Ontologia

Commune · EST

Olju

Estonia

DfbCold, no dry season, warm summer(100 %)

Species observed

207

Observations

483

Area

2,7km²

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 Olju : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 5 types (connectance 8.7%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
71
Connectance
0.087
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

207 distinct species · 483 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

483 obs · 1 cellules
Obs. / cellule
≥ 483
483–482
483–482
483–482
< 483

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

Climate

Mean T°

5,4°C

Annual rain

717mm

Warmest m°

21,0°C

Coldest m°

-8,7°C

Elevation: 90 m on average (min 84 m, max 96 m)

Bioclimatic detailsExpert
Annual mean temp.
5,4°C
Annual rain
717mm
Warmest month
21,0°C
Coldest month
-8,7°C
Mean alt.
90m
Min
84m
Max
96m
Std. dev.
5m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold

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

Soil & lithology

pH H₂O

6,4

Org. C

104,2g/kg

Clay

16,0%

Sand

45,9%

Silt

38,0%

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

Dominant lithology: suGLiMaggregated to Rakke

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
156,0g/kg
Clay
16,4%
Sand
45,5%
Silt
38,1%
5–15 cm
pH H₂O
6,5
Org. C
107,4g/kg
Clay
16,3%
Sand
45,4%
Silt
38,4%
15–30 cm
pH H₂O
6,5
Org. C
49,1g/kg
Clay
15,3%
Sand
46,9%
Silt
37,6%

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

Land cover

Forest55.3%
Crops26.6%
Built-up0.0%
Bare soil0.0%
Other (grassland, water…)18.0%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

1,5km

Basins crossed

1

Max stream order

3

Max drainage

2 075km²

Discharge in basins

0,0m³/s

Mean precip.

625mm/an

Mean T°

4,8°C

Moisture idx

0,11

Max snow

40%

Mean runoff

272mm/an

Mean elev. (basins)

92m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

2,6%

Pesticides

3,8kg/km²

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

Protected areas2

IUCN Not Assigned · 2

Onga jõgi

IUCN Not Assigned

Spawning area · 2022

0 km²

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