Ontologia

Commune · FRA

La Chapelle-Heulin

France

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

Species observed

1 552

Observations

54 849

Area

13,7km²

Ecological tissue

Sample of 35 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 La Chapelle-Heulin : 23 espèces reliées par 81 interactions GloBI sur 6 types (connectance 12.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
81
Connectance
0.129
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

1 552 distinct species · 54 849 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

54 849 obs · 3 cellules
Obs. / cellule
≥ 48 754
48 754–48 753
48 754–48 753
3 239–48 753
< 3 239

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

Climate

Mean T°

12,1°C

Annual rain

795mm

Warmest m°

23,8°C

Coldest m°

2,7°C

Elevation: 17 m on average (min 4 m, max 33 m)

Bioclimatic detailsExpert
Annual mean temp.
12,1°C
Annual rain
795mm
Warmest month
23,8°C
Coldest month
2,7°C
Mean alt.
17m
Min
4m
Max
33m
Std. dev.
10m
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

6,2

Org. C

44,6g/kg

Clay

20,6%

Sand

36,7%

Silt

42,7%

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

Dominant lithology: ssGLiMaggregated to Loire-Atlantique

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
69,1g/kg
Clay
20,3%
Sand
37,2%
Silt
42,5%
5–15 cm
pH H₂O
6,3
Org. C
34,4g/kg
Clay
21,0%
Sand
36,1%
Silt
43,0%
15–30 cm
pH H₂O
6,3
Org. C
30,5g/kg
Clay
20,5%
Sand
36,9%
Silt
42,6%

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

Land cover

Forest20.0%
Crops27.8%
Built-up2.8%
Bare soil1.6%
Other (grassland, water…)47.7%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

1,7km

Basins crossed

2

Max stream order

2

Max drainage

111 742km²

Discharge in basins

6,4m³/s

Mean precip.

725mm/an

Mean T°

11,4°C

Moisture idx

-0,14

Max snow

4%

Mean runoff

381mm/an

Mean elev. (basins)

63m

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

Human pressure

Pop. density

2hab/km²

Night light

0,7nW

Built-up

283,8%

Pesticides

44,3kg/km²

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

Protected areas2

IUCN Not Reported · 2

Marais de Goulaine

IUCN Not Reported

Special Protection Area (Birds Directive) · 2019

15 km²

Marais de Goulaine

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2014

15 km²

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.