Special Areas of Conservation (Habitats Directive) · FRA
Marais Poitevin
- Area
- 479 km²
- IUCN cat.
- Not Reported
- Year
- 2014
Overview
- Designation
- Special Areas of Conservation (Habitats Directive)
- Established
- 2014
- 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
5 957 distinct species · 566 388 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 2 types (connectance 11.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology10 basins · 2 lakes · 51 rivers
Hydrology metrics for this exact territory
Stream length here
216,3km
Lake surface here
0,50km²
Basins crossed
10
Max stream order
4
Max drainage
3 420km²
Discharge in basins
34,4m³/s
Mean precip.
770mm/an
Mean T°
12,2°C
Moisture idx
-0,06
Max snow
4%
Mean runoff
520mm/an
Mean elev. (basins)
33m
Watersheds crossing here
- Bassin de Chenal Vieuxsub-area236,3 km²overlap117.48 km²25%
- Bassin du Laysub-area1 998,9 km²overlap108.27 km²23%
- Bassin de la Sèvre Niortaisesub-area370,2 km²overlap91.19 km²19%
- Bassin de l'Autisesub-area422,7 km²overlap31.75 km²7%
- Bassin de la Rigole d'Azirésub-area73,4 km²overlap24.77 km²5%
- Bassin du Jaunaysub-area893 km²overlap21.82 km²5%
- Bassin de la Vendéesub-area594,8 km²overlap18.88 km²4%
- Bassin de Fossé Centralsub-area134,3 km²overlap14.59 km²3%
- Bassin de Fossé du Bois Billaudsub-area172,5 km²overlap12.72 km²3%
1 more basinssorted by overlap
Lakes (2, top by area)
Rivers / streams (51, ord ≥ 4)
- Le Layord 4len here30.18 km45%total67 km
- Chenal Vieuxord 2len here15.47 km78%total20 km
- La Rigole d'Aziréord 1len here12.89 km98%total13 km
- Ruisseau de Chantegrosord 3len here12.51 km62%total20 km
- Le Troussepoilord 2len here9.12 km48%total19 km
- Canal de la Vergneord 2len here9.02 km75%total12 km
- Canal du Grand Portord 3len here7.47 km83%total9 km
- Ceinture du Commandeurord 2len here7.24 km55%total13 km
- Ceinture de la Levée du Bois Dieuord 3len here6.54 km99%total7 km
- Canal de la Duneord 2len here6.50 km92%total7 km
- La Vielle Autiseord 3len here6.33 km87%total7 km
- La Ceinture Fosséord 4len here6.02 km83%total7 km
39 more river segmentssorted by Strahler order + length
- La Sèvre Niortaiseord 4len here5.86 km5%total126 km
- La Vendéeord 3len here5.38 km8%total67 km
- Canal du Petit Maraisord 2len here5.23 km100%total5 km
- Canal des Hollandaisord 2len here5.12 km79%total6 km
- Bot Bourdinord 1len here4.98 km100%total5 km
- Le Graonord 2len here4.97 km33%total15 km
- Ceinture des Fenêtres Rougesord 1len here4.69 km100%total5 km
- Conche de la Bequetterieord 4len here4.50 km100%total4 km
- Ceinture de la Levée Neuveord 1len here3.78 km80%total5 km
- Fossé de la Dispartieord 2len here3.46 km93%total4 km
- Canal du Milieuord 4len here3.46 km100%total3 km
- Canal de la Boissièreord 2len here3.36 km59%total6 km
- La Douveord 1len here3.22 km75%total4 km
- Canal de la Chevrotièreord 2len here2.80 km94%total3 km
- Canal de Pomèreord 4len here2.60 km83%total3 km
- L'Yonord 3len here2.57 km6%total40 km
- Canal de Ceinture du Marais de Boëreord 4len here2.45 km66%total4 km
- Fossé Centralord 1len here1.91 km20%total10 km
- Le Nantoletord 1len here1.91 km40%total5 km
- La Longèvesord 2len here1.75 km14%total12 km
- Fossé du Corps de Gardeord 4len here1.69 km100%total2 km
- Canal de Ceintureord 1len here1.63 km100%total2 km
- Canal des Hollandaisord 1len here1.26 km100%total1 km
- Fossé de Bazoinord 4len here1.13 km100%total1 km
- Canal de Vixord 3len here1.06 km11%total10 km
- Canal de Bois Vilainord 1len here0.98 km13%total7 km
- La Cordeord 2len here0.81 km11%total7 km
- Canal des Trois Fossésord 1len here0.80 km35%total2 km
- Canal du Sablonord 4len here0.79 km29%total3 km
- Le Contre-Botord 2len here0.68 km30%total2 km
- Canal de l'Angle Giraudord 1len here0.64 km10%total6 km
- Le Vieux Mignonord 3len here0.63 km7%total9 km
- Bief d'Ambreuilord 4len here0.40 km62%total1 km
- L'Autiseord 3len here0.14 km1%total26 km
- L'Acheneauord 3len here0.13 km5%total3 km
- Bief Communal de Bourneauord 3len here0.09 km8%total1 km
- Chenal de la Raqueord 1len here0.09 km2%total4 km
- Petit Canal de Vixord 1len here0.06 km2%total4 km
- Canal des Cinq Abbésord 1len here0.04 km1%total5 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
- 46.39399, -1.09921
- 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.