Ontologia

Subdivision · DEU

Witten

Germany

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

Species observed

2 265

Observations

20 606

Area

73km²

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 Witten : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 110 interactions GloBI sur 6 types (connectance 13.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
110
Connectance
0.134
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

2 265 distinct species · 20 606 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

20 606 obs · 2 cellules
Obs. / cellule
≥ 15 070
15 070–15 069
15 070–15 069
15 070–15 069
< 15 070

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

1 031mm

Warmest m°

21,9°C

Coldest m°

-0,8°C

Elevation: 139 m on average (min 83 m, max 234 m)

Bioclimatic detailsExpert
Annual mean temp.
9,7°C
Annual rain
1 031mm
Warmest month
21,9°C
Coldest month
-0,8°C
Mean alt.
139m
Min
83m
Max
234m
Std. dev.
37m
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

5,4

Org. C

55,1g/kg

Clay

22,2%

Sand

28,6%

Silt

49,3%

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

Dominant lithology: mtGLiMaggregated to Ennepe-Ruhr-Kreis

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
92,0g/kg
Clay
21,8%
Sand
27,4%
Silt
50,8%
5–15 cm
pH H₂O
5,5
Org. C
41,4g/kg
Clay
22,5%
Sand
27,4%
Silt
50,2%
15–30 cm
pH H₂O
5,5
Org. C
32,0g/kg
Clay
22,3%
Sand
30,9%
Silt
46,8%

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

Land cover

Forest34.6%
Crops21.8%
Built-up5.3%
Bare soil0.3%
Other (grassland, water…)38.0%

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

Hydrology2 basins · 1 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

17,8km

Lake surface here

0,67km²

Basins crossed

2

Max stream order

5

Max drainage

4 457km²

Discharge in basins

5,3m³/s

Mean precip.

854mm/an

Mean T°

9,5°C

Moisture idx

0,15

Max snow

13%

Mean runoff

310mm/an

Mean elev. (basins)

125m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

8hab/km²

Night light

6,8nW

Built-up

530,4%

Pesticides

10,4kg/km²

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

Protected areas35

IUCN V · 28IUCN IV · 7
Complete list

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