Ontologia

Commune · FRA

Ercheu

France

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

Species observed

793

Observations

8 650

Area

14,1km²

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 Ercheu : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 6 types (connectance 14.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
83
Connectance
0.148
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

793 distinct species · 8 650 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 650 obs · 1 cellules
Obs. / cellule
≥ 8 650
8 650–8 649
8 650–8 649
8 650–8 649
< 8 650

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

Climate

Mean T°

10,7°C

Annual rain

718mm

Warmest m°

22,6°C

Coldest m°

0,8°C

Elevation: 72 m on average (min 61 m, max 93 m)

Bioclimatic detailsExpert
Annual mean temp.
10,7°C
Annual rain
718mm
Warmest month
22,6°C
Coldest month
0,8°C
Mean alt.
72m
Min
61m
Max
93m
Std. dev.
7m
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

7,3

Org. C

20,1g/kg

Clay

26,8%

Sand

18,6%

Silt

54,5%

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

Dominant lithology: smGLiMaggregated to Somme

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,0
Org. C
32,1g/kg
Clay
25,1%
Sand
18,7%
Silt
56,2%
5–15 cm
pH H₂O
7,4
Org. C
14,0g/kg
Clay
27,9%
Sand
17,6%
Silt
54,5%
15–30 cm
pH H₂O
7,3
Org. C
14,2g/kg
Clay
27,6%
Sand
19,5%
Silt
53,0%

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

Land cover

Forest2.5%
Crops87.2%
Built-up0.7%
Bare soil0.6%
Other (grassland, water…)9.0%

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

Hydrology2 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

3,2km

Basins crossed

2

Max stream order

2

Max drainage

4 416km²

Discharge in basins

0,2m³/s

Mean precip.

651mm/an

Mean T°

9,9°C

Moisture idx

-0,15

Max snow

7%

Mean runoff

334mm/an

Mean elev. (basins)

89m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

66,9%

Pesticides

47,0kg/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.