Ontologia

Commune · FRA

Erny-Saint-Julien

France

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

Species observed

667

Observations

6 071

Area

5,1km²

Ecological tissue

Sample of 33 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 Erny-Saint-Julien : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 6 types (connectance 14.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
74
Connectance
0.140
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

667 distinct species · 6 071 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 071 obs · 1 cellules
Obs. / cellule
≥ 6 071
6 071–6 070
6 071–6 070
6 071–6 070
< 6 071

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

Climate

Mean T°

10,2°C

Annual rain

956mm

Warmest m°

21,1°C

Coldest m°

1,1°C

Elevation: 112 m on average (min 86 m, max 127 m)

Bioclimatic detailsExpert
Annual mean temp.
10,2°C
Annual rain
956mm
Warmest month
21,1°C
Coldest month
1,1°C
Mean alt.
112m
Min
86m
Max
127m
Std. dev.
12m
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

7,0

Org. C

25,4g/kg

Clay

22,4%

Sand

14,4%

Silt

63,3%

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
6,8
Org. C
38,3g/kg
Clay
22,0%
Sand
14,0%
Silt
63,9%
5–15 cm
pH H₂O
7,1
Org. C
20,3g/kg
Clay
22,5%
Sand
13,7%
Silt
63,8%
15–30 cm
pH H₂O
7,1
Org. C
17,5g/kg
Clay
22,6%
Sand
15,3%
Silt
62,2%

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

Land cover

Forest11.2%
Crops60.3%
Built-up0.9%
Bare soil0.6%
Other (grassland, water…)27.0%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

2,8km

Basins crossed

1

Max stream order

1

Max drainage

862km²

Discharge in basins

0,1m³/s

Mean precip.

672mm/an

Mean T°

10,1°C

Moisture idx

-0,01

Max snow

8%

Mean runoff

531mm/an

Mean elev. (basins)

74m

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

Night light

0,0nW

Built-up

91,3%

Pesticides

48,7kg/km²

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

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.