Ontologia

Commune · EST

Altja

Estonia

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

Species observed

813

Observations

10 067

Area

4,4km²

Ecological tissue

Sample of 28 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 Altja : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 3 types (connectance 9.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
36
Connectance
0.095
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

813 distinct species · 10 067 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 067 obs · 1 cellules
Obs. / cellule
≥ 10 067
10 067–10 066
10 067–10 066
10 067–10 066
< 10 067

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

677mm

Warmest m°

19,7°C

Coldest m°

-7,6°C

Elevation: 15 m on average (min -1 m, max 24 m)

Bioclimatic detailsExpert
Annual mean temp.
5,4°C
Annual rain
677mm
Warmest month
19,7°C
Coldest month
-7,6°C
Mean alt.
15m
Min
-1m
Max
24m
Std. dev.
9m
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

5,1

Org. C

95,5g/kg

Clay

19,8%

Sand

55,7%

Silt

24,5%

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

Dominant lithology: suGLiMaggregated to Vihula

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,9
Org. C
119,5g/kg
Clay
18,7%
Sand
56,2%
Silt
25,1%
5–15 cm
pH H₂O
5,0
Org. C
109,3g/kg
Clay
18,8%
Sand
56,7%
Silt
24,5%
15–30 cm
pH H₂O
5,3
Org. C
57,7g/kg
Clay
21,9%
Sand
54,2%
Silt
23,9%

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

Land cover

Forest82.7%
Crops3.4%
Built-up0.1%
Bare soil0.0%
Other (grassland, water…)13.8%

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

1

Max drainage

452km²

Discharge in basins

0,0m³/s

Mean precip.

625mm/an

Mean T°

4,8°C

Moisture idx

0,13

Max snow

39%

Mean runoff

294mm/an

Mean elev. (basins)

56m

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

9,8%

Pesticides

0,8kg/km²

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

Protected areas20

IUCN Not Assigned · 10IUCN Not Reported · 3IUCN VI · 3IUCN Ib · 3IUCN IV · 1🌊 Marine · 8

Lahemaa

IUCN Not Reported

Baltic Sea Protected Area (HELCOM) · 2009

748 km²

Lahemaa

IUCN Not Reported

Special Protection Area (Birds Directive) · 2004

748 km²

Lahemaa

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2015

748 km²

Complete list

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