Estuaire de la Loire - Baie de Bourgneuf
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2008
802 km²
Commune · FRA
Saint-Michel-Chef-Chef
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 343
Observations
22 951
Area
25,3km²
Ecological tissue
Sample of 32 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 Saint-Michel-Chef-Chef : 18 espèces reliées par 113 interactions GloBI sur 6 types (connectance 19.0%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
35
Interactions affichées
113
Connectance
0.190
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
2 343 distinct species · 22 951 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,4°C
Annual rain
769mm
Warmest m°
22,1°C
Coldest m°
4,0°C
Elevation: 29 m on average (min 0 m, max 45 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,4°C
Annual rain
769mm
Warmest month
22,1°C
Coldest month
4,0°C
Mean alt.
29m
Min
0m
Max
45m
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
44,3g/kg
Clay
26,0%
Sand
31,8%
Silt
42,2%
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
6,2
Org. C
63,6g/kg
Clay
25,3%
Sand
31,9%
Silt
42,8%
5–15 cm
pH H₂O
6,2
Org. C
38,5g/kg
Clay
25,5%
Sand
31,5%
Silt
43,0%
15–30 cm
pH H₂O
6,2
Org. C
30,7g/kg
Clay
27,2%
Sand
31,9%
Silt
40,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest13.6%
Crops41.4%
Built-up3.6%
Bare soil0.6%
Other (grassland, water…)40.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 0 rivers
Hydrology metrics for this exact territory
Lake surface here
0,11km²
Basins crossed
1
Max drainage
1 307km²
Discharge in basins
0,0m³/s
Mean precip.
832mm/an
Mean T°
11,9°C
Moisture idx
0,04
Max snow
5%
Mean runoff
538mm/an
Mean elev. (basins)
14m
Watersheds crossing here
Lakes (1, top by area)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,8nW
Built-up
364,5%
Pesticides
44,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Reported · 2IUCN IV · 1🌊 Marine · 2
Estuaire de la Loire Sud - Baie de Bourgneuf
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2015
495 km²
Les terres rouges
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy) · 1994
0 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.