Ruisseau· 4 segments
IJse
Crosses 1 administrative regions : Vlaams Brabant
Total length
19km
Max discharge
1,1m³/s
Max Strahler
2
Segments matched
4
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- Vlaams BrabantVlaanderen · Belgium21.6 kmin this dpt
21 intersecting protected areas
Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
Special Areas of Conservation (Habitats Directive)
Zoniënwoud
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
NBP-VB-19-0167 type 4
IUCN IVNature management plan type 4 (Flemish Region)
La Forêt de Soignes avec lisières et domaines boisés avoisinants et la Vallée de la Woluwe - complexe Forêt de Soignes - Vallée de la Woluwe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Het Meerdaalwoud
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
Het Zoniënwoud
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
De Dijlevallei
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
De Dijlevallei
IUCN Not ReportedSpecial Protection Area (Birds Directive)
12 more protected areassorted by area
NBP-VB-19-0167 type 2
IUCN VINature management plan type 2 (Flemish Region)
Dijle-, Laan- en Ijsevallei
IUCN IVNature management plan type 4 (Flemish Region)
NBP-VB-23-0011 type 4
IUCN IVNature management plan type 4 (Flemish Region)
NBP-VB-20-0013 type 2
IUCN VINature management plan type 2 (Flemish Region)
3
IUCN Not AssignedProtected zone in the forest (Brussels Capital Region)
De IJsevallei
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
NBP-VB-23-0011 type 3
IUCN IVNature management plan type 3 (Flemish Region)
NBP-VB-21-0331 type 3
IUCN IVNature management plan type 3 (Flemish Region)
NBP-VB-21-0312 type 4
IUCN IVNature management plan type 4 (Flemish Region)
NBP-VB-18-0010 type 4
IUCN IVNature management plan type 4 (Flemish Region)
NBP-VB-22-0233 type 2
IUCN VINature management plan type 2 (Flemish Region)
NBP-VB-21-0331 type 4
IUCN IVNature management plan type 4 (Flemish Region)
1 page = 1 named river (aggregation of 4 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
2 088 distinct species · 53 436 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 IJse : 32 espèces + 6 bulles famille, 87 interactions GloBI documentées sur 5 types (connectance 12.4%, 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).
Hydrology (HydroRIVERS v10)
Total length
19km
Max discharge
1,1m³/s
Max Strahler
2
Segments matched
4
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.