Ruisseau
Grand Roua
Crosses 2 administrative regions : Limburg, Liège
Total length
7km
Max discharge
0,5m³/s
Max Strahler
1
Segments matched
1
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- LimburgVlaanderen · Belgium9.6 kmin this dpt
- LiègeWallonie · Belgium6.2 kmin this dpt
5 intersecting protected areas
Jekervallei en bovenloop van de Demervallei
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
NBP-LI-21-0108 type 2
IUCN VINature management plan type 2 (Flemish Region)
De Kevie en Kleinmeers
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
De Jekervallei
IUCN Not AssignedFlemish Ecological Network (Flemish Region)
NBP/LI/20/0274 type 4
IUCN IVNature management plan type 4 (Flemish Region)
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
1 098 distinct species · 22 775 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 Grand Roua : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 6 bulles famille, 78 interactions GloBI documentées sur 4 types (connectance 11.1%, 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
7km
Max discharge
0,5m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.