Fleuve· 4 segments
L'Auvignon
Crosses 2 administrative regions : Gers, Lot-et-Garonne
Total length
57km
Max discharge
385,8m³/s
Max Strahler
7
Segments matched
4
River geography2 admin regions · 21 communes
2 administrative regions crossed (GADM L2)
- Lot-et-GaronneNouvelle-Aquitaine · France19.5 kmin this dpt
- GersOccitanie · France7.9 kmin this dpt
21 communes (L5)For countries with L5
- Bruch5.65 km
- Montagnac-sur-Auvignon4.13 km
- Feugarolles3.42 km
- Port-Sainte-Marie2.63 km
- Condom2.53 km
- Gazaupouy1.86 km
- Moncrabeau1.75 km
- Caussens1.73 km
- Blaziert1.68 km
- Bazens0.67 km
- Montesquieu0.61 km
- Francescas0.31 km
- Saint-Laurent0.27 km
- Castelnau-sur-l'Auvignon0.09 km
- Saint-Orens-Pouy-Petit0.00 km
- Clermont-Dessous0.00 km
- Calignac0.00 km
- Espiens0.00 km
- Saumont0.00 km
- Ligardes0.00 km
- Roquepine0.00 km
3 intersecting protected areas
La Garonne en Nouvelle-Aquitaine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Garonne Et Section Du Lot
IUCN IVBiotope Protection Order
verger de bazens
IUCN IVLand acquired by a regional conservatory of natural areas
1 page = 1 named river (aggregation of 4 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
551 distinct species · 1 652 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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'Auvignon : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 112 interactions GloBI sur 6 types (connectance 13.0%, 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
57km
Max discharge
385,8m³/s
Max Strahler
7
Segments matched
4
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.