Rivière· 8 segments
La Lesse
Crosses 2 administrative regions : Luxembourg, Namur
Total length
50km
Max discharge
10,9m³/s
Max Strahler
4
Segments matched
8
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- LuxembourgWallonie · Belgium29.1 kmin this dpt
- NamurWallonie · Belgium2.8 kmin this dpt
15 intersecting protected areas
Massif forestier de Daverdisse
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Massif forestier de Daverdisse
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Bassin de la Lesse entre Villers-sur-Lesse et Chanly
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Bassin de la Lesse entre Villers-sur-Lesse et Chanly
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
La Famenne entre Eprave et Havrenne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
La Famenne entre Eprave et Havrenne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vallée de la Wimbe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée de la Wimbe
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Haute-Lesse
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6 more protected areassorted by area
Haute-Lesse
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Lesse et Lomme
IUCN IVState Nature Reserve (Walloon Region)
Basse Wimbe
IUCN IVCertified Nature Reserve (Walloon Region)
State Nature Reserve (Walloon Region)
Ochamps
IUCN IVCertified Nature Reserve (Walloon Region)
Neupont (Lomme)
IUCN IVScientific Interest Site (Walloon Region)
1 page = 1 named river (aggregation of 8 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
768 distinct species · 3 499 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 La Lesse : 35 espèces + 5 bulles famille, 82 interactions GloBI documentées sur 4 types (connectance 10.5%, filtre Serrano α=0.2). Les 5 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
50km
Max discharge
10,9m³/s
Max Strahler
4
Segments matched
8
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.