Ontologia

Subdivision · BEL

Alken

Belgium

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

Species observed

3 318

Observations

58 816

Area

25,3km²

Ecological tissue

Sample of 40 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 Alken : 29 espèces reliées par 107 interactions GloBI sur 5 types (connectance 13.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
107
Connectance
0.137
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

3 318 distinct species · 58 816 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

58 816 obs · 1 cellules
Obs. / cellule
≥ 58 816
58 816–58 815
58 816–58 815
58 816–58 815
< 58 816

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

Climate

Mean T°

10,5°C

Annual rain

826mm

Warmest m°

22,6°C

Coldest m°

0,4°C

Elevation: 44 m on average (min 30 m, max 62 m)

Bioclimatic detailsExpert
Annual mean temp.
10,5°C
Annual rain
826mm
Warmest month
22,6°C
Coldest month
0,4°C
Mean alt.
44m
Min
30m
Max
62m
Std. dev.
7m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate

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

Soil & lithology

pH H₂O

6,0

Org. C

23,5g/kg

Clay

21,7%

Sand

29,3%

Silt

49,1%

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

Dominant lithology: suGLiMaggregated to Limburg

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
31,6g/kg
Clay
23,2%
Sand
28,4%
Silt
48,4%
5–15 cm
pH H₂O
6,1
Org. C
25,0g/kg
Clay
20,9%
Sand
29,4%
Silt
49,7%
15–30 cm
pH H₂O
6,1
Org. C
14,0g/kg
Clay
20,9%
Sand
30,0%
Silt
49,2%

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

Land cover

Forest13.8%
Crops34.2%
Built-up4.5%
Bare soil0.8%
Other (grassland, water…)46.7%

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

Hydrology2 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

6,1km

Basins crossed

2

Max stream order

3

Max drainage

935km²

Discharge in basins

0,3m³/s

Mean precip.

814mm/an

Mean T°

9,7°C

Moisture idx

0,10

Max snow

10%

Mean runoff

375mm/an

Mean elev. (basins)

62m

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

Human pressure

Pop. density

3hab/km²

Night light

3,7nW

Built-up

445,8%

Pesticides

78,0kg/km²

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

Protected areas5

IUCN IV · 2IUCN Not Reported · 1IUCN Not Assigned · 1IUCN VI · 1

De Herk

IUCN Not Assigned

Flemish Ecological Network (Flemish Region) · 2003

9 km²

Herkvallei

IUCN IV

Nature management plan type 4 (Flemish Region) · 2020

1 km²

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