Ruisseau· 3 segments
Weser
Crosses 2 administrative regions : Liège, Städteregion Aachen
Total length
449km
Max discharge
2,2m³/s
Max Strahler
3
Segments matched
3
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- LiègeWallonie · Belgium12.4 kmin this dpt
- Städteregion AachenNordrhein-Westfalen · Germany2.8 kmin this dpt
15 intersecting protected areas
Les Hautes Fagnes
IUCN IVWetland of International Importance (Ramsar Site)
Hautes Fagnes
IUCN IVState Nature Reserve (Walloon Region)
Fagnes du Nord-Est
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Fagnes du Nord-Est
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de la Vesdre entre Eupen et Verviers
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de la Vesdre entre Eupen et Verviers
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Affluents du lac d'Eupen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Affluents du lac d'Eupen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de la Soor
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6 more protected areassorted by area
Vallée de la Soor
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Landscape Protection Area
Nature Reserve
LSG-Schwerzfeld
IUCN VLandscape Protection Area
Forest Reserve (Walloon Region)
NSG Weser
IUCN IVNature Reserve
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
757 distinct species · 2 928 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 Weser : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 122 interactions GloBI sur 4 types (connectance 16.5%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
449km
Max discharge
2,2m³/s
Max Strahler
3
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.