Ontologia

Subdivision · DEU

Alfhausen

Germany

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

Species observed

920

Observations

5 514

Area

39,4km²

Ecological tissue

Sample of 38 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 Alfhausen : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 88 interactions GloBI sur 6 types (connectance 12.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
88
Connectance
0.125
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

920 distinct species · 5 514 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 514 obs · 1 cellules
Obs. / cellule
≥ 5 514
5 514–5 513
5 514–5 513
5 514–5 513
< 5 514

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

Climate

Mean T°

9,7°C

Annual rain

862mm

Warmest m°

22,3°C

Coldest m°

-0,4°C

Elevation: 47 m on average (min 33 m, max 99 m)

Bioclimatic detailsExpert
Annual mean temp.
9,7°C
Annual rain
862mm
Warmest month
22,3°C
Coldest month
-0,4°C
Mean alt.
47m
Min
33m
Max
99m
Std. dev.
13m
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

53,7g/kg

Clay

11,5%

Sand

64,3%

Silt

24,2%

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

Dominant lithology: smGLiMaggregated to Osnabrück

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
90,4g/kg
Clay
11,2%
Sand
63,5%
Silt
25,4%
5–15 cm
pH H₂O
5,6
Org. C
31,8g/kg
Clay
11,2%
Sand
64,9%
Silt
23,9%
15–30 cm
pH H₂O
5,6
Org. C
38,8g/kg
Clay
12,2%
Sand
64,6%
Silt
23,3%

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

Land cover

Forest19.0%
Crops53.8%
Built-up1.0%
Bare soil0.5%
Other (grassland, water…)25.7%

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

Hydrology1 basins · 2 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

15,0km

Lake surface here

2,09km²

Basins crossed

1

Max stream order

4

Max drainage

1 194km²

Discharge in basins

0,6m³/s

Mean precip.

831mm/an

Mean T°

8,9°C

Moisture idx

0,16

Max snow

14%

Mean runoff

456mm/an

Mean elev. (basins)

82m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,4nW

Built-up

101,4%

Pesticides

35,6kg/km²

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

Protected areas4

IUCN IV · 2IUCN V · 1IUCN Not Reported · 1

Alfsee

IUCN Not Reported

Special Protection Area (Birds Directive) · 2001

3 km²

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