Special Areas of Conservation (Habitats Directive) · FRA
Marais Poitevin
- Area
- 203 km²
- IUCN cat.
- Not Reported
- Year
- 2007
Overview
- Designation
- Special Areas of Conservation (Habitats Directive)
- Established
- 2007
- Managing authority
- See European Environment Agency Geospatial Data Catalogue for more information - https://sdi.eea.europa.eu/catalogue/srv/api/records/be2142b0-7dc4-42e3-afac-f7cc5f1a9ac6
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
3 901 distinct species · 183 578 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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).
Indicateurs du tissu écologique
Tissu écologique de Marais Poitevin : 36 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 130 interactions GloBI sur 5 types (connectance 12.6%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology13 basins · 0 lakes · 45 rivers
Hydrology metrics for this exact territory
Stream length here
134,2km
Basins crossed
13
Max stream order
4
Max drainage
3 420km²
Discharge in basins
13,8m³/s
Mean precip.
784mm/an
Mean T°
12,3°C
Moisture idx
-0,08
Max snow
9%
Mean runoff
523mm/an
Mean elev. (basins)
27m
Watersheds crossing here
- Bassin du Mignonsub-area495,1 km²overlap50.31 km²25%
- Bassin du Curésub-area457,4 km²overlap38.36 km²19%
- Bassin de Fossé Centralsub-area134,3 km²overlap36.35 km²18%
- Bassin de la Sèvre Niortaisesub-area370,2 km²overlap23.02 km²11%
- Bassin de la Sèvre Niortaisesub-area982,9 km²overlap9.41 km²5%
- Bassin de la Guirandesub-area174 km²overlap8.51 km²4%
- Bassin de Canal de la Moulinettesub-area450,4 km²overlap5.36 km²3%
- Basin #20780sub-area3,5 km²overlap3.06 km²2%
- Bassin de la Rigole d'Azirésub-area73,4 km²overlap3.00 km²1%
Rivers / streams (45, ord ≥ 4)
- La Sèvre Niortaiseord 4len here13.95 km11%total126 km
- Le Mignonord 3len here12.69 km50%total26 km
- Le Curéord 3len here12.28 km36%total34 km
- Le Vieux Mignonord 3len here7.65 km82%total9 km
- La Couranceord 2len here7.08 km32%total22 km
- Le Bieford 2len here6.41 km52%total12 km
- Canal du Mignonord 3len here5.87 km100%total6 km
- Canal des Bochesord 4len here5.79 km67%total9 km
- La Vieille Sèvre dite Bras de Sevreauord 2len here5.77 km96%total6 km
- Canal du Chailord 1len here5.53 km100%total6 km
- Canal de la Repentieord 4len here4.95 km54%total9 km
- La Guirandeord 2len here3.90 km14%total28 km
33 more river segmentssorted by Strahler order + length
- Le Vivierord 2len here3.86 km100%total4 km
- Canal de la Brieord 3len here3.13 km48%total7 km
- Canal de la Chaudièreord 3len here2.80 km100%total3 km
- Canal de Gravansord 1len here2.61 km41%total6 km
- Canal Anticharord 2len here2.58 km41%total6 km
- Bief de Glandeord 4len here2.42 km70%total3 km
- La Charreord 1len here2.29 km51%total4 km
- Petit Canal d'Andillyord 1len here2.23 km100%total2 km
- Canal Ratéord 2len here2.13 km64%total3 km
- Le Fossé Noirord 1len here1.93 km38%total5 km
- Canal du Grand Coinord 4len here1.85 km100%total2 km
- Canal du Curéord 3len here1.71 km61%total3 km
- La Subiteord 3len here1.55 km29%total5 km
- Ruisseau des Fontainesord 1len here1.46 km28%total5 km
- Bief du Roseauord 1len here1.41 km32%total4 km
- La Ceinture Fosséord 4len here1.29 km18%total7 km
- Canal de Bois Vilainord 1len here1.07 km14%total7 km
- Canal du Sablonord 4len here0.94 km35%total3 km
- Les Alleudsord 2len here0.70 km4%total16 km
- Canal de la Baronneord 3len here0.66 km37%total2 km
- Canal de Vixord 3len here0.63 km6%total10 km
- Le Romagnéord 1len here0.56 km13%total4 km
- Fossé Centralord 1len here0.50 km5%total10 km
- Le Vendiéord 1len here0.50 km9%total6 km
- Bief Chabotord 1len here0.35 km51%total1 km
- Le Virsonord 2len here0.32 km2%total15 km
- Le Traquenardord 2len here0.32 km6%total6 km
- Bief d'Ambreuilord 4len here0.24 km38%total1 km
- Canal de Marans à La Rochelleord 1len here0.22 km3%total7 km
- Canal de Ceinture du Marais de Boëreord 4len here0.03 km1%total4 km
- Conche de la Bequetterieord 4len here≈ tangenttotal4 km
- Ruisseau de Chantegrosord 3len here≈ tangenttotal20 km
- Canal de Ladressoirord 1len here≈ tangenttotal6 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 46.27498, -1.14112
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.