Special Areas of Conservation (Habitats Directive) · FRA
Marais arrière-littoraux picards
- Area
- 17 km²
- IUCN cat.
- Not Reported
- Year
- 2017
Overview
- Designation
- Special Areas of Conservation (Habitats Directive)
- Established
- 2017
- 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
1 711 distinct species · 20 094 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 arrière-littoraux picards : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 6 types (connectance 9.4%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology2 basins · 0 lakes · 7 rivers
Hydrology metrics for this exact territory
Stream length here
17,1km
Basins crossed
2
Max stream order
2
Max drainage
1 103km²
Discharge in basins
0,1m³/s
Mean precip.
650mm/an
Mean T°
10,3°C
Moisture idx
-0,08
Max snow
8%
Mean runoff
564mm/an
Mean elev. (basins)
59m
Watersheds crossing here
Rivers / streams (7, ord ≥ 4)
- La Mayeord 2len here6.07 km21%total30 km
- Canal des Masuresord 1len here2.94 km42%total7 km
- Rivière des Ilesord 2len here2.87 km28%total10 km
- L'Authieord 3len here2.46 km2%total145 km
- Rivière de Neuvilleord 1len here1.83 km47%total4 km
- Canal de la Mayeord 2len here0.54 km7%total7 km
- Le Dienord 1len here0.44 km6%total7 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
- 50.32441, 1.71055
- 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.