Fleuve· 26 segments
Le Ciron
Crosses 3 administrative regions : Gironde, Landes, Lot-et-Garonne
Total length
105km
Max discharge
637,4m³/s
Max Strahler
7
Segments matched
26
River geography3 admin regions · 27 communes
3 administrative regions crossed (GADM L2)
- GirondeNouvelle-Aquitaine · France65.0 kmin this dpt
- Lot-et-GaronneNouvelle-Aquitaine · France14.8 kmin this dpt
- LandesNouvelle-Aquitaine · France7.1 kmin this dpt
27 communes (L5)For countries with L5
- Lerm-et-Musset9.89 km
- Bernos-Beaulac7.75 km
- Préchac7.49 km
- Lubbon7.14 km
- Houeillès6.83 km
- Uzeste6.76 km
- Saint-Michel-de-Castelnau5.70 km
- Lartigue4.93 km
- Allons4.69 km
- Lucmau3.68 km
- Noaillan2.95 km
- Escaudes2.81 km
- Villandraut2.76 km
- Sauméjan2.45 km
- Pompéjac2.06 km
- Cudos2.04 km
- Giscos1.94 km
- Preignac1.31 km
- Goualade1.20 km
- Sainte-Croix-du-Mont1.14 km
- Boussès0.47 km
- Pindères0.37 km
- Toulenne0.37 km
- Barsac0.26 km
- Loupiac0.00 km
- Verdelais0.00 km
- Saint-Maixant0.00 km
3 intersecting protected areas
Landes De Gascogne
IUCN VRegional Nature Park
La Garonne en Nouvelle-Aquitaine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallée du Ciron
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 26 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
464 distinct species · 7 963 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Ciron : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 7 bulles famille, 69 interactions GloBI documentées sur 4 types (connectance 12.3%, 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
105km
Max discharge
637,4m³/s
Max Strahler
7
Segments matched
26
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.