Marais Poitevin
IUCN VRegional Nature Park · 2014
1 986 km²
Commune · FRA
Cramchaban
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 003
Observations
13 430
Area
16km²
Ecological tissue
Sample of 41 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 Cramchaban : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 4 bulles famille, 75 interactions GloBI documentées sur 4 types (connectance 9.1%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
41
Interactions affichées
75
Connectance
0.091
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
1 003 distinct species · 13 430 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,8°C
Annual rain
830mm
Warmest m°
24,8°C
Coldest m°
2,9°C
Elevation: 15 m on average (min 3 m, max 33 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,8°C
Annual rain
830mm
Warmest month
24,8°C
Coldest month
2,9°C
Mean alt.
15m
Min
3m
Max
33m
Std. dev.
6m
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
6,8
Org. C
43,3g/kg
Clay
36,5%
Sand
16,0%
Silt
47,5%
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
6,6
Org. C
68,9g/kg
Clay
34,6%
Sand
15,9%
Silt
49,6%
5–15 cm
pH H₂O
6,8
Org. C
33,9g/kg
Clay
38,5%
Sand
14,2%
Silt
47,3%
15–30 cm
pH H₂O
6,8
Org. C
27,1g/kg
Clay
36,5%
Sand
17,8%
Silt
45,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest4.5%
Crops70.7%
Built-up0.6%
Bare soil1.4%
Other (grassland, water…)22.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
5,3km
Basins crossed
1
Max stream order
3
Max drainage
495km²
Discharge in basins
0,3m³/s
Mean precip.
805mm/an
Mean T°
12,2°C
Moisture idx
-0,07
Max snow
3%
Mean runoff
534mm/an
Mean elev. (basins)
40m
Watersheds crossing here
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
63,5%
Pesticides
41,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas6
IUCN Not Reported · 2IUCN IV · 2IUCN V · 1IUCN III · 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 la greve-sur-mignon
IUCN IVLand acquired by a regional conservatory of natural areas · 1970
0 km²
tourbieres et zone humide du mignon
IUCN IVLand acquired by a regional conservatory of natural areas · 2021
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.