Marais Poitevin
IUCN VRegional Nature Park · 2014
1 986 km²
Commune · FRA
Saint-Ouen-d'Aunis
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
914
Observations
14 157
Area
9km²
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 Saint-Ouen-d'Aunis : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 106 interactions GloBI sur 6 types (connectance 15.1%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
38
Interactions affichées
106
Connectance
0.151
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
914 distinct species · 14 157 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,9°C
Annual rain
783mm
Warmest m°
24,1°C
Coldest m°
3,6°C
Elevation: 8 m on average (min 3 m, max 13 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,9°C
Annual rain
783mm
Warmest month
24,1°C
Coldest month
3,6°C
Mean alt.
8m
Min
3m
Max
13m
Std. dev.
5m
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
7,3
Org. C
35,6g/kg
Clay
42,1%
Sand
12,3%
Silt
45,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Charente-Maritime
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,2
Org. C
56,1g/kg
Clay
42,2%
Sand
12,0%
Silt
45,8%
5–15 cm
pH H₂O
7,3
Org. C
24,7g/kg
Clay
43,0%
Sand
11,0%
Silt
46,0%
15–30 cm
pH H₂O
7,4
Org. C
25,9g/kg
Clay
41,3%
Sand
13,9%
Silt
44,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest4.9%
Crops64.0%
Built-up1.9%
Bare soil0.6%
Other (grassland, water…)28.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
3,3km
Basins crossed
1
Max stream order
2
Max drainage
457km²
Discharge in basins
0,2m³/s
Mean precip.
775mm/an
Mean T°
12,5°C
Moisture idx
-0,07
Max snow
3%
Mean runoff
524mm/an
Mean elev. (basins)
19m
Watersheds crossing here
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,1nW
Built-up
186,9%
Pesticides
41,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas5
IUCN Not Reported · 2IUCN V · 1IUCN III · 1IUCN IV · 1🌊 Marine · 4
Marais poitevin
IUCN IIIWetland of International Importance (Ramsar Site) · 2023
690 km²
Marais poitevin
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2019
682 km²
Marais Poitevin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2007
203 km²
marais de villedoux
IUCN IVLand acquired by a regional conservatory of natural areas · 2017
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.