Ontologia

Subdivision · DEU

Perl

Germany

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

Species observed

6 490

Observations

193 625

Area

75,8km²

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 Perl : 13 espèces reliées par 238 interactions GloBI sur 5 types (connectance 11.4%, filtre Serrano α=0.2). 52 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
65
Interactions affichées
238
Connectance
0.114
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

6 490 distinct species · 193 625 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

193 625 obs · 7 cellules
Obs. / cellule
≥ 137 744
137 744–137 743
8 765–137 743
6 443–8 764
< 6 443

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

Climate

Mean T°

9,4°C

Annual rain

979mm

Warmest m°

22,3°C

Coldest m°

-1,5°C

Elevation: 301 m on average (min 149 m, max 409 m)

Bioclimatic detailsExpert
Annual mean temp.
9,4°C
Annual rain
979mm
Warmest month
22,3°C
Coldest month
-1,5°C
Mean alt.
301m
Min
149m
Max
409m
Std. dev.
85m
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

6,7

Org. C

33,7g/kg

Clay

31,6%

Sand

18,7%

Silt

49,6%

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

Dominant lithology: ssGLiMaggregated to Merzig-Wadern

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
59,7g/kg
Clay
30,5%
Sand
19,4%
Silt
50,2%
5–15 cm
pH H₂O
6,8
Org. C
24,7g/kg
Clay
31,9%
Sand
18,0%
Silt
50,1%
15–30 cm
pH H₂O
6,8
Org. C
16,7g/kg
Clay
32,5%
Sand
18,9%
Silt
48,6%

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

Land cover

Forest28.4%
Crops45.8%
Built-up1.2%
Bare soil0.6%
Other (grassland, water…)24.0%

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

Hydrology3 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

13,3km

Basins crossed

3

Max stream order

5

Max drainage

11 807km²

Discharge in basins

18,1m³/s

Mean precip.

776mm/an

Mean T°

9,3°C

Moisture idx

-0,00

Max snow

12%

Mean runoff

315mm/an

Mean elev. (basins)

270m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

1,5nW

Built-up

119,9%

Pesticides

25,8kg/km²

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

Protected areas30

IUCN Not Reported · 15IUCN V · 8IUCN IV · 6IUCN Not Assigned · 1

Steilhänge der Saar

IUCN Not Reported

Site of Community Importance (Habitats Directive) · 2004

11 km²

Complete list

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