Ontologia

Subdivision · DEU

Dahlem

Germany

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

Species observed

2 061

Observations

31 477

Area

95,2km²

Ecological tissue

Sample of 25 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 Dahlem : 14 espèces reliées par 115 interactions GloBI sur 6 types (connectance 28.3%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
115
Connectance
0.283
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

2 061 distinct species · 31 477 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

31 477 obs · 3 cellules
Obs. / cellule
≥ 16 404
16 404–16 403
16 404–16 403
9 319–16 403
< 9 319

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

Climate

Mean T°

7,5°C

Annual rain

1 077mm

Warmest m°

19,5°C

Coldest m°

-2,7°C

Elevation: 555 m on average (min 489 m, max 624 m)

Bioclimatic detailsExpert
Annual mean temp.
7,5°C
Annual rain
1 077mm
Warmest month
19,5°C
Coldest month
-2,7°C
Mean alt.
555m
Min
489m
Max
624m
Std. dev.
28m
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

5,1

Org. C

68,7g/kg

Clay

26,2%

Sand

19,8%

Silt

53,9%

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

Dominant lithology: scGLiMaggregated to Euskirchen

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
104,4g/kg
Clay
26,7%
Sand
19,2%
Silt
54,1%
5–15 cm
pH H₂O
5,2
Org. C
67,4g/kg
Clay
25,4%
Sand
19,7%
Silt
54,9%
15–30 cm
pH H₂O
5,2
Org. C
34,4g/kg
Clay
26,7%
Sand
20,6%
Silt
52,8%

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

Land cover

Forest52.9%
Crops20.6%
Built-up0.5%
Bare soil0.2%
Other (grassland, water…)25.8%

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

Hydrology3 basins · 1 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

16,8km

Lake surface here

0,15km²

Basins crossed

3

Max stream order

2

Max drainage

2 355km²

Discharge in basins

1,0m³/s

Mean precip.

874mm/an

Mean T°

8,1°C

Moisture idx

0,21

Max snow

18%

Mean runoff

333mm/an

Mean elev. (basins)

400m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

47,5%

Pesticides

25,4kg/km²

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

Protected areas61

IUCN IV · 40IUCN V · 14IUCN Not Reported · 7

LSG-Dahlem

IUCN V

Landscape Protection Area · 2003

61 km²

Complete list

+ 1 protected areas (top 60 shown)

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