Rivière· 19 segments
L'Ourthe
Crosses 3 administrative regions : Liège, Luxembourg, Namur
Total length
114km
Max discharge
34m³/s
Max Strahler
5
Segments matched
19
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- LuxembourgWallonie · Belgium43.3 kmin this dpt
- LiègeWallonie · Belgium6.8 kmin this dpt
- NamurWallonie · Belgium5.7 kmin this dpt
30 intersecting protected areas
Camp militaire de Marche-en-Famenne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Camp militaire de Marche-en-Famenne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Bassin inférieur de l'Ourthe orientale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Bassin inférieur de l'Ourthe orientale
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de l'Ourthe entre Nisramont et La Roche
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de l'Ourthe entre Nisramont et La Roche
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Basse vallée de l'Aisne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Basse vallée de l'Aisne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Massifs forestiers famenniens entre Hotton et Barvaux-sur-Ourthe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21 more protected areassorted by area
Massifs forestiers famenniens entre Hotton et Barvaux-sur-Ourthe
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de l'Ourthe entre Hotton et Barvaux-sur-Ourthe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée de l'Ourthe entre Hotton et Barvaux-sur-Ourthe
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Bassin inférieur de l'Ourthe occidentale
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Bassin inférieur de l'Ourthe occidentale
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée de la Lembrée et affluents
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de la Lembrée et affluents
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée de l'Ourthe entre Comblain-au-Pont et Angleur
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de l'Ourthe entre Comblain-au-Pont et Angleur
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée de l'Ourthe entre Bomal et Hamoir
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée de l'Ourthe entre Bomal et Hamoir
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de l'Ourthe entre La Roche et Hotton
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée de l'Ourthe entre La Roche et Hotton
IUCN Not ReportedSpecial Protection Area (Birds Directive)
La Calestienne entre Barvaux et Bomal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
La Calestienne entre Barvaux et Bomal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
La Calestienne entre Marenne et Hotton
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
La Calestienne entre Marenne et Hotton
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Plaine de Ny
IUCN Not ReportedSpecial Protection Area (Birds Directive)
La Calestienne entre Hotton et Oppagne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
La Calestienne entre Hotton et Oppagne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Enneilles
IUCN IVCertified Nature Reserve (Walloon Region)
1 page = 1 named river (aggregation of 19 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 340 distinct species · 5 231 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 L'Ourthe : 26 espèces + 7 bulles famille, 61 interactions GloBI documentées sur 5 types (connectance 11.6%, filtre Serrano α=0.2). Les 7 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
114km
Max discharge
34,0m³/s
Max Strahler
5
Segments matched
19
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.