Marais de l'Erdre
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2019
28 km²
Commune · FRA
La Chapelle-sur-Erdre
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
3 563
Observations
105 538
Area
33km²
Ecological tissue
Sample of 40 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-sur-Erdre : 28 espèces reliées par 112 interactions GloBI sur 6 types (connectance 13.0%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
42
Interactions affichées
112
Connectance
0.130
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
3 563 distinct species · 105 538 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,1°C
Annual rain
846mm
Warmest m°
23,5°C
Coldest m°
2,7°C
Elevation: 27 m on average (min 11 m, max 49 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,1°C
Annual rain
846mm
Warmest month
23,5°C
Coldest month
2,7°C
Mean alt.
27m
Min
11m
Max
49m
Std. dev.
8m
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
5,9
Org. C
38,0g/kg
Clay
17,9%
Sand
36,7%
Silt
45,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Loire-Atlantique
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,9
Org. C
62,3g/kg
Clay
17,4%
Sand
37,6%
Silt
45,1%
5–15 cm
pH H₂O
5,9
Org. C
28,5g/kg
Clay
18,1%
Sand
36,3%
Silt
45,6%
15–30 cm
pH H₂O
5,9
Org. C
23,1g/kg
Clay
18,1%
Sand
36,2%
Silt
45,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest26.2%
Crops28.3%
Built-up4.5%
Bare soil0.4%
Other (grassland, water…)40.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
10,7km
Lake surface here
0,49km²
Basins crossed
1
Max stream order
3
Max drainage
1 019km²
Discharge in basins
0,4m³/s
Mean precip.
751mm/an
Mean T°
11,4°C
Moisture idx
-0,09
Max snow
5%
Mean runoff
437mm/an
Mean elev. (basins)
44m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
3hab/km²
Night light
2,3nW
Built-up
450,1%
Pesticides
44,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 2
Marais de l'Erdre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2014
26 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.