Dunes, forêt et marais d'Olonne
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2018
29 km²
Commune · FRA
Olonne-sur-Mer
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
3 169
Observations
67 112
Area
46,6km²
Ecological tissue
Sample of 45 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 Olonne-sur-Mer : 36 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 105 interactions GloBI sur 5 types (connectance 10.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
45
Interactions affichées
105
Connectance
0.106
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
3 169 distinct species · 67 112 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,0°C
Annual rain
842mm
Warmest m°
21,4°C
Coldest m°
5,5°C
Elevation: 11 m on average (min 0 m, max 46 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,0°C
Annual rain
842mm
Warmest month
21,4°C
Coldest month
5,5°C
Mean alt.
11m
Min
0m
Max
46m
Std. dev.
9m
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
46,6g/kg
Clay
26,8%
Sand
30,3%
Silt
42,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Vendée
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,2
Org. C
79,7g/kg
Clay
26,5%
Sand
30,2%
Silt
43,3%
5–15 cm
pH H₂O
6,2
Org. C
34,2g/kg
Clay
26,1%
Sand
30,1%
Silt
43,9%
15–30 cm
pH H₂O
6,3
Org. C
26,0g/kg
Clay
27,9%
Sand
30,6%
Silt
41,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest29.2%
Crops15.6%
Built-up4.3%
Bare soil1.4%
Other (grassland, water…)49.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 4 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
11,0km
Lake surface here
0,92km²
Basins crossed
1
Max stream order
3
Max drainage
893km²
Discharge in basins
0,1m³/s
Mean precip.
827mm/an
Mean T°
12,1°C
Moisture idx
0,04
Max snow
3%
Mean runoff
555mm/an
Mean elev. (basins)
35m
Watersheds crossing here
Lakes (4, top by area)
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
2,0nW
Built-up
424,7%
Pesticides
43,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN Not Reported · 2IUCN IV · 2🌊 Marine · 2
Dunes, forêt et marais d'Olonne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2015
29 km²
Marais d\'olonne
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy) · 2003
2 km²
L\'Ileau De Champclou
IUCN IVBiotope Protection Order · 1999
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.