Ontologia

Subdivision · DEU

Olfen

Germany

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

Species observed

1 171

Observations

5 555

Area

52,5km²

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 Olfen : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 6 types (connectance 13.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
108
Connectance
0.139
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

1 171 distinct species · 5 555 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 555 obs · 1 cellules
Obs. / cellule
≥ 5 555
5 555–5 554
5 555–5 554
5 555–5 554
< 5 555

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

Climate

Mean T°

10,1°C

Annual rain

856mm

Warmest m°

22,6°C

Coldest m°

-0,3°C

Elevation: 54 m on average (min 42 m, max 89 m)

Bioclimatic detailsExpert
Annual mean temp.
10,1°C
Annual rain
856mm
Warmest month
22,6°C
Coldest month
-0,3°C
Mean alt.
54m
Min
42m
Max
89m
Std. dev.
8m
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

5,5

Org. C

55,1g/kg

Clay

12,1%

Sand

65,9%

Silt

22,0%

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

Dominant lithology: suGLiMaggregated to Coesfeld

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
90,6g/kg
Clay
12,2%
Sand
65,7%
Silt
22,1%
5–15 cm
pH H₂O
5,7
Org. C
42,5g/kg
Clay
12,3%
Sand
65,8%
Silt
21,9%
15–30 cm
pH H₂O
5,6
Org. C
32,0g/kg
Clay
11,7%
Sand
66,3%
Silt
21,9%

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

Land cover

Forest24.4%
Crops49.6%
Built-up1.8%
Bare soil0.7%
Other (grassland, water…)23.5%

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

Hydrology2 basins · 0 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

16,9km

Basins crossed

2

Max stream order

4

Max drainage

3 254km²

Discharge in basins

3,9m³/s

Mean precip.

812mm/an

Mean T°

9,5°C

Moisture idx

0,12

Max snow

14%

Mean runoff

311mm/an

Mean elev. (basins)

68m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

1,0nW

Built-up

178,0%

Pesticides

32,4kg/km²

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

Protected areas19

IUCN V · 11IUCN IV · 6IUCN Not Reported · 2

Lippeaue

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2018

24 km²

Complete list

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