Ontologia

Municipality · NLD

Assen

Netherlands

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

Species observed

4 914

Observations

242 303

Area

83,6km²

Ecological tissue

Sample of 41 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 Assen : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 131 interactions GloBI sur 5 types (connectance 15.2%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
131
Connectance
0.152
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

4 914 distinct species · 242 303 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

242 303 obs · 2 cellules
Obs. / cellule
≥ 147 148
147 148–147 147
147 148–147 147
147 148–147 147
< 147 148

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

Climate

Mean T°

9,5°C

Annual rain

899mm

Warmest m°

21,0°C

Coldest m°

-0,1°C

Elevation: 11 m on average (min 6 m, max 17 m)

Bioclimatic detailsExpert
Annual mean temp.
9,5°C
Annual rain
899mm
Warmest month
21,0°C
Coldest month
-0,1°C
Mean alt.
11m
Min
6m
Max
17m
Std. dev.
2m
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

5,4

Org. C

96,7g/kg

Clay

7,6%

Sand

75,2%

Silt

17,3%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
122,2g/kg
Clay
7,5%
Sand
75,1%
Silt
17,4%
5–15 cm
pH H₂O
5,5
Org. C
61,8g/kg
Clay
7,3%
Sand
75,5%
Silt
17,1%
15–30 cm
pH H₂O
5,4
Org. C
106,0g/kg
Clay
7,9%
Sand
74,8%
Silt
17,3%

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

Land cover

Forest18.6%
Crops34.6%
Built-up3.9%
Bare soil0.4%
Other (grassland, water…)42.4%

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

Hydrology2 basins · 2 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

21,5km

Lake surface here

0,33km²

Basins crossed

2

Max stream order

3

Max drainage

1 612km²

Discharge in basins

1,5m³/s

Mean precip.

793mm/an

Mean T°

8,7°C

Moisture idx

0,18

Max snow

12%

Mean runoff

477mm/an

Mean elev. (basins)

3m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

4hab/km²

Night light

3,6nW

Built-up

389,2%

Pesticides

63,8kg/km²

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

Protected areas6

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

NNN-DR

IUCN Not Assigned

Nature Reserves owned by professional nature management organizations · 2015

716 km²

Drentsche Aa-gebied

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2013

39 km²

Witterveld

IUCN IV

Nature Conservation Act · 2009

5 km²

Witterveld

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2009

5 km²

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