Special Areas of Conservation (Habitats Directive) · bel
Demervallei
- Area
- 49 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
3 480 distinct species · 249 559 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Demervallei : 32 espèces + 6 bulles famille, 54 interactions GloBI documentées sur 6 types (connectance 7.7%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology6 basins · 1 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
15,4km
Lake surface here
0,76km²
Basins crossed
6
Max stream order
5
Max drainage
3 611km²
Discharge in basins
1,8m³/s
Mean precip.
803mm/an
Mean T°
9,8°C
Moisture idx
0,08
Max snow
12%
Mean runoff
409mm/an
Mean elev. (basins)
42m
Watersheds crossing here
- Bassin de Demersub-area587,9 km²overlap33.13 km²67%
- Bassin de Grote Netesub-area1 676,2 km²overlap7.02 km²14%
- Bassin de Herksub-area806,3 km²overlap6.27 km²13%
- Bassin de Dylesub-area910,6 km²overlap2.43 km²5%
- Bassin de Velpesub-area934,5 km²overlap0.17 km²0%
- Bassin de Leibeeksub-area371,5 km²overlap0.09 km²0%
Lakes (1, top by area)
Rivers / streams (9, ord ≥ 4)
- Demerord 5len here6.34 km12%total53 km
- Kleine Boorord 2len here2.30 km38%total6 km
- Herkord 3len here1.96 km9%total22 km
- Zwarte Beekord 5len here1.92 km65%total3 km
- Zwartwaterord 3len here1.50 km33%total5 km
- Vloedgrachtord 2len here0.70 km6%total12 km
- Motteord 2len here0.67 km25%total3 km
- Begijnebeekord 2len here≈ tangenttotal18 km
- Lievevrouweleibeekord 5len here≈ tangenttotal2 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
- 50.95604, 5.14595
- 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.