Ontologia

Subdivision · DEU

Hennef (Sieg)

Germany

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

Species observed

3 628

Observations

36 582

Area

105,7km²

Ecological tissue

Sample of 47 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 Hennef (Sieg) : 34 espèces reliées par 129 interactions GloBI sur 5 types (connectance 11.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
47
Interactions affichées
129
Connectance
0.119
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

3 628 distinct species · 36 582 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

36 582 obs · 3 cellules
Obs. / cellule
≥ 13 868
13 868–13 867
13 868–13 867
11 633–13 867
< 11 633

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

Climate

Mean T°

9,9°C

Annual rain

932mm

Warmest m°

22,4°C

Coldest m°

-0,7°C

Elevation: 152 m on average (min 61 m, max 285 m)

Bioclimatic detailsExpert
Annual mean temp.
9,9°C
Annual rain
932mm
Warmest month
22,4°C
Coldest month
-0,7°C
Mean alt.
152m
Min
61m
Max
285m
Std. dev.
45m
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

5,7

Org. C

43,0g/kg

Clay

25,3%

Sand

21,3%

Silt

53,3%

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

Dominant lithology: suGLiMaggregated to Rhein-Sieg-Kreis

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
68,7g/kg
Clay
24,3%
Sand
21,2%
Silt
54,5%
5–15 cm
pH H₂O
5,8
Org. C
40,6g/kg
Clay
25,0%
Sand
20,8%
Silt
54,1%
15–30 cm
pH H₂O
5,8
Org. C
19,8g/kg
Clay
26,8%
Sand
21,8%
Silt
51,4%

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

Land cover

Forest31.6%
Crops31.2%
Built-up2.5%
Bare soil0.2%
Other (grassland, water…)34.5%

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

Hydrology3 basins · 2 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

30,6km

Lake surface here

0,46km²

Basins crossed

3

Max stream order

3

Max drainage

2 054km²

Discharge in basins

6,6m³/s

Mean precip.

800mm/an

Mean T°

9,2°C

Moisture idx

0,08

Max snow

16%

Mean runoff

295mm/an

Mean elev. (basins)

201m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

1,8nW

Built-up

245,2%

Pesticides

29,4kg/km²

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

Protected areas44

IUCN IV · 31IUCN V · 9IUCN Not Reported · 4
Complete list

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