Ruisseau· 5 segments
Le Lez
Crosses 2 administrative regions : Drôme, Vaucluse
Total length
141km
Max discharge
4,8m³/s
Max Strahler
3
Segments matched
5
River geography2 admin regions · 14 communes
2 administrative regions crossed (GADM L2)
14 communes (L5)For countries with L5
- Bollène6.32 km
- Grillon5.69 km
- Taulignan4.81 km
- Suze-la-Rousse4.51 km
- Roche-Saint-Secret-Béconne3.87 km
- Colonzelle3.04 km
- Valréas1.53 km
- Montségur-sur-Lauzon1.24 km
- Chamaret0.89 km
- Montbrison-sur-Lez0.73 km
- Grignan0.04 km
- Bouchet0.00 km
- Richerenches0.00 km
- Rochegude0.00 km
6 intersecting protected areas
Baronnies Provençales
IUCN VRegional Nature Park
Le Rhône aval
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Sables du Tricastin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Donzère-Mondragon
IUCN IVNational Hunting and Wildlife Reserve
Marais de l'Ile Vieille et alentour
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Natural habitats protection Order
1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 205 distinct species · 15 876 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Le Lez : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 5 types (connectance 15.1%, filtre Serrano α=0.2). 15 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
141km
Max discharge
4,8m³/s
Max Strahler
3
Segments matched
5
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.