Ontologia

Subdivision · DEU

Alfeld

Germany

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

Species observed

1 491

Observations

8 056

Area

17,4km²

Ecological tissue

Sample of 32 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 Alfeld : 22 espèces reliées par 130 interactions GloBI sur 5 types (connectance 23.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
130
Connectance
0.232
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

1 491 distinct species · 8 056 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 056 obs · 1 cellules
Obs. / cellule
≥ 8 056
8 056–8 055
8 056–8 055
8 056–8 055
< 8 056

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

Climate

Mean T°

8,1°C

Annual rain

985mm

Warmest m°

22,0°C

Coldest m°

-3,6°C

Elevation: 532 m on average (min 466 m, max 579 m)

Bioclimatic detailsExpert
Annual mean temp.
8,1°C
Annual rain
985mm
Warmest month
22,0°C
Coldest month
-3,6°C
Mean alt.
532m
Min
466m
Max
579m
Std. dev.
24m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(100 %)Cold

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

Soil & lithology

pH H₂O

5,8

Org. C

45,7g/kg

Clay

28,6%

Sand

24,6%

Silt

46,9%

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

Dominant lithology: suGLiMaggregated to Nürnberger Land

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,7
Org. C
76,0g/kg
Clay
27,8%
Sand
24,5%
Silt
47,7%
5–15 cm
pH H₂O
5,9
Org. C
39,7g/kg
Clay
29,5%
Sand
24,3%
Silt
46,2%
15–30 cm
pH H₂O
5,9
Org. C
21,4g/kg
Clay
28,4%
Sand
25,0%
Silt
46,7%

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

Land cover

Forest42.7%
Crops32.9%
Built-up0.6%
Bare soil0.6%
Other (grassland, water…)23.2%

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

Hydrology3 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

3,8km

Basins crossed

3

Max stream order

2

Max drainage

2 206km²

Discharge in basins

0,1m³/s

Mean precip.

694mm/an

Mean T°

8,0°C

Moisture idx

-0,08

Max snow

24%

Mean runoff

269mm/an

Mean elev. (basins)

451m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

62,3%

Pesticides

29,3kg/km²

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

Protected areas7

IUCN V · 3IUCN Not Reported · 2IUCN IV · 2
Complete list

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