Ontologia

Commune · FRA

Merck-Saint-Liévin

France

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

Species observed

551

Observations

2 528

Area

12,1km²

Ecological tissue

Sample of 34 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 Merck-Saint-Liévin : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 103 interactions GloBI sur 5 types (connectance 17.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
103
Connectance
0.173
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

551 distinct species · 2 528 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 528 obs · 1 cellules
Obs. / cellule
≥ 2 528
2 528–2 527
2 528–2 527
2 528–2 527
< 2 528

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

Climate

Mean T°

10,1°C

Annual rain

954mm

Warmest m°

20,9°C

Coldest m°

1,1°C

Elevation: 117 m on average (min 85 m, max 167 m)

Bioclimatic detailsExpert
Annual mean temp.
10,1°C
Annual rain
954mm
Warmest month
20,9°C
Coldest month
1,1°C
Mean alt.
117m
Min
85m
Max
167m
Std. dev.
23m
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

29,4g/kg

Clay

24,3%

Sand

15,1%

Silt

60,6%

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

Dominant lithology: smGLiMaggregated to Pas-de-Calais

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
46,6g/kg
Clay
23,2%
Sand
15,3%
Silt
61,5%
5–15 cm
pH H₂O
6,8
Org. C
24,4g/kg
Clay
24,6%
Sand
14,5%
Silt
60,9%
15–30 cm
pH H₂O
6,7
Org. C
17,2g/kg
Clay
25,1%
Sand
15,6%
Silt
59,2%

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

Land cover

Forest9.4%
Crops59.1%
Built-up0.8%
Bare soil1.0%
Other (grassland, water…)29.8%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

3,3km

Basins crossed

1

Max stream order

3

Max drainage

934km²

Discharge in basins

0,2m³/s

Mean precip.

666mm/an

Mean T°

10,1°C

Moisture idx

0,03

Max snow

8%

Mean runoff

555mm/an

Mean elev. (basins)

81m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Built-up

74,7%

Pesticides

46,8kg/km²

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

Protected areas1

IUCN V · 1🌊 Marine · 1

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

France-specific data (Phase 2)

ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.