Brière
IUCN VRegional Nature Park · 1970
566 km²
Commune · FRA
Donges
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 348
Observations
60 635
Area
54,1km²
Ecological tissue
Sample of 37 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 Donges : 26 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 5 types (connectance 10.1%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
38
Interactions affichées
71
Connectance
0.101
Patrimoniales
4
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
2 348 distinct species · 60 635 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,3°C
Annual rain
793mm
Warmest m°
22,8°C
Coldest m°
3,4°C
Elevation: 4 m on average (min -1 m, max 11 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,3°C
Annual rain
793mm
Warmest month
22,8°C
Coldest month
3,4°C
Mean alt.
4m
Min
-1m
Max
11m
Std. dev.
3m
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
54,6g/kg
Clay
20,8%
Sand
33,2%
Silt
46,1%
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
6,1
Org. C
78,4g/kg
Clay
19,7%
Sand
33,7%
Silt
46,6%
5–15 cm
pH H₂O
6,1
Org. C
50,5g/kg
Clay
21,6%
Sand
32,1%
Silt
46,3%
15–30 cm
pH H₂O
6,2
Org. C
34,9g/kg
Clay
21,1%
Sand
33,6%
Silt
45,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest15.3%
Crops37.1%
Built-up2.7%
Bare soil0.8%
Other (grassland, water…)44.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 5 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
8,2km
Lake surface here
3,70km²
Basins crossed
1
Max stream order
3
Max drainage
1 138km²
Discharge in basins
0,0m³/s
Mean precip.
814mm/an
Mean T°
11,7°C
Moisture idx
0,04
Max snow
5%
Mean runoff
527mm/an
Mean elev. (basins)
16m
Watersheds crossing here
Lakes (5, top by area)
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
5,5nW
Built-up
266,5%
Pesticides
43,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas9
IUCN Not Reported · 5IUCN IV · 3IUCN V · 1🌊 Marine · 4
Estuaire de la Loire
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2014
218 km²
Estuaire de la Loire
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2018
202 km²
Grande Brière, marais de Donges et du Brivet
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2019
198 km²
Grande Briere
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 1995
174 km²
Grande Brière et marais de Donges
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2015
167 km²
Complete list9 protected areas
- BrièreRegional Nature ParkIUCN V1970566 km²
- Estuaire de la LoireSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014218 km²
- Estuaire de la LoireSpecial Protection Area (Birds Directive)IUCN Not Reported2018202 km²
- Grande Brière, marais de Donges et du BrivetSpecial Protection Area (Birds Directive)IUCN Not Reported2019198 km²
- Grande BriereWetland of International Importance (Ramsar Site)IUCN Not Reported1995174 km²
- Grande Brière et marais de DongesSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2015167 km²
- Estuaire de la loireLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)IUCN IV199928 km²
- Sites abritant le Pleucedan officinal, plante hôte de la Noctuelle des PeucedanBiotope Protection OrderIUCN IV20201 km²
- Marais De LibergeBiotope Protection OrderIUCN IV19960 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.