Ontologia

Subdivision · DEU

Saarbrücken

Germany

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

Species observed

4 105

Observations

79 215

Area

169km²

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 Saarbrücken : 26 espèces reliées par 55 interactions GloBI sur 3 types (connectance 10.4%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
55
Connectance
0.104
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

4 105 distinct species · 79 215 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

79 215 obs · 6 cellules
Obs. / cellule
≥ 51 999
51 999–51 998
7 699–51 998
6 730–7 698
< 6 730

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

884mm

Warmest m°

23,3°C

Coldest m°

-1,3°C

Elevation: 263 m on average (min 195 m, max 361 m)

Bioclimatic detailsExpert
Annual mean temp.
9,9°C
Annual rain
884mm
Warmest month
23,3°C
Coldest month
-1,3°C
Mean alt.
263m
Min
195m
Max
361m
Std. dev.
38m
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

5,9

Org. C

46,3g/kg

Clay

28,5%

Sand

23,8%

Silt

47,7%

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

Dominant lithology: ssGLiMaggregated to Regionalverband Saarbrücken

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
77,9g/kg
Clay
27,8%
Sand
24,1%
Silt
48,1%
5–15 cm
pH H₂O
6,0
Org. C
39,4g/kg
Clay
28,5%
Sand
23,4%
Silt
48,1%
15–30 cm
pH H₂O
6,0
Org. C
21,5g/kg
Clay
29,1%
Sand
24,1%
Silt
46,9%

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

Land cover

Forest44.2%
Crops17.6%
Built-up4.8%
Bare soil0.1%
Other (grassland, water…)33.3%

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

Hydrology2 basins · 0 lakes · 12 rivers

Hydrology metrics for this exact territory

Stream length here

51,1km

Basins crossed

2

Max stream order

5

Max drainage

4 729km²

Discharge in basins

8,5m³/s

Mean precip.

762mm/an

Mean T°

9,3°C

Moisture idx

-0,03

Max snow

9%

Mean runoff

322mm/an

Mean elev. (basins)

267m

Watersheds crossing here

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

Human pressure

Pop. density

6hab/km²

Night light

6,1nW

Built-up

481,4%

Pesticides

17,9kg/km²

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

Protected areas53

IUCN V · 32IUCN Not Reported · 10IUCN IV · 7IUCN Not Assigned · 4

Saarkohlenwald

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2017

24 km²

Saarkohlenwald

IUCN Not Reported

Special Protection Area (Birds Directive) · 2000

24 km²

Complete list

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