Marais de Vilaine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
109 km²
Commune · FRA
France
Species observed
369
Observations
2 774
Area
25km²
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).
Tissu écologique de Limerzel : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 3 types (connectance 13.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
369 distinct species · 2 774 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
11,8°C
Annual rain
937mm
Warmest m°
22,2°C
Coldest m°
3,1°C
Elevation: 63 m on average (min 26 m, max 89 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
5,7
Org. C
42,6g/kg
Clay
20,8%
Sand
31,4%
Silt
47,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiMaggregated to Morbihan
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
10,9km
Basins crossed
2
Max stream order
2
Max drainage
10 459km²
Discharge in basins
10,9m³/s
Mean precip.
811mm/an
Mean T°
11,4°C
Moisture idx
0,05
Max snow
7%
Mean runoff
543mm/an
Mean elev. (basins)
45m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,0nW
Built-up
82,1%
Pesticides
46,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Special Areas of Conservation (Habitats Directive) · 2016
109 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.