Marais Poitevin
IUCN VRegional Nature Park · 2014
1 986 km²
Commune · FRA
Chaillé-les-Marais
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 462
Observations
23 140
Area
40,1km²
Ecological tissue
Sample of 43 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 Chaillé-les-Marais : 35 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 5 types (connectance 9.6%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
43
Interactions affichées
87
Connectance
0.096
Patrimoniales
3
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 462 distinct species · 23 140 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,8°C
Annual rain
814mm
Warmest m°
24,4°C
Coldest m°
3,2°C
Elevation: 2 m on average (min 1 m, max 7 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,8°C
Annual rain
814mm
Warmest month
24,4°C
Coldest month
3,2°C
Mean alt.
2m
Min
1m
Max
7m
Std. dev.
1m
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
7,0
Org. C
34,8g/kg
Clay
36,9%
Sand
13,9%
Silt
49,3%
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
7,0
Org. C
58,8g/kg
Clay
35,6%
Sand
13,4%
Silt
51,1%
5–15 cm
pH H₂O
7,1
Org. C
21,7g/kg
Clay
37,7%
Sand
12,3%
Silt
50,0%
15–30 cm
pH H₂O
7,1
Org. C
24,1g/kg
Clay
37,3%
Sand
16,0%
Silt
46,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest3.0%
Crops68.8%
Built-up0.8%
Bare soil0.3%
Other (grassland, water…)27.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
14,7km
Basins crossed
1
Max stream order
2
Max drainage
3 420km²
Discharge in basins
6,3m³/s
Mean precip.
755mm/an
Mean T°
12,4°C
Moisture idx
-0,08
Max snow
4%
Mean runoff
521mm/an
Mean elev. (basins)
10m
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
0,1nW
Built-up
77,6%
Pesticides
42,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas8
IUCN Not Reported · 3IUCN IV · 3IUCN V · 1IUCN III · 1🌊 Marine · 5
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) · 2014
479 km²
Marais Poitevin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2007
203 km²
marais poitevin - saut de la carpe et petite boissiere
IUCN IVLand acquired by a regional conservatory of natural areas · 1900
0 km²
Complete list8 protected areas
- Marais PoitevinRegional Nature ParkIUCN V20141 986 km²
- Marais poitevinWetland of International Importance (Ramsar Site)IUCN III2023690 km²
- Marais poitevinSpecial Protection Area (Birds Directive)IUCN Not Reported2019682 km²
- Marais PoitevinSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2014479 km²
- Marais PoitevinSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2007203 km²
- marais poitevin - saut de la carpe et petite boissiereLand acquired by a regional conservatory of natural areasIUCN IV19000 km²
- Terrées Du Pain Béni Et Prairies AttenantesBiotope Protection OrderIUCN IV19970 km²
- Coteaux Calcaires De Chaillé Les MaraisBiotope Protection OrderIUCN IV19880 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.