Rivière· 26 segments
L'Aron
Crosses 4 administrative regions : Loire, Mayenne, Nièvre, Saône-et-Loire
Total length
183km
Max discharge
16,8m³/s
Max Strahler
4
Segments matched
26
River geography4 admin regions · 40 communes
4 administrative regions crossed (GADM L2)
- NièvreBourgogne-Franche-Comté · France63.4 kmin this dpt
- MayennePays de la Loire · France29.4 kmin this dpt
- Saône-et-LoireBourgogne-Franche-Comté · France6.4 kmin this dpt
- LoireAuvergne-Rhône-Alpes · France1.8 kmin this dpt
40 communes (L5)For countries with L5
- Crux-la-Ville9.92 km
- Montapas7.83 km
- Champvert7.76 km
- Aron7.14 km
- Marcillé-la-Ville6.71 km
- Verneuil5.66 km
- Châtillon-en-Bazois5.64 km
- Saint-Maurice5.06 km
- La Chapelle-au-Riboul5.01 km
- Limanton4.72 km
- Champgenéteux4.63 km
- Bais4.60 km
- Saint-Igny-de-Roche4.09 km
- Biches3.94 km
- Alluy2.72 km
- Thaix2.07 km
- Brinay1.90 km
- Tancon1.86 km
- Belmont-de-la-Loire1.82 km
- Diennes-Aubigny1.74 km
- Decize1.65 km
- Cercy-la-Tour1.34 km
- La Bazoge-Montpinçon1.31 km
- Vandenesse0.53 km
- Coublanc0.47 km
- Montaron0.39 km
- Saint-Gratien-Savigny0.27 km
- Bazolles0.25 km
- Vitry-Laché0.00 km
- Hambers0.00 km
- Hardanges0.00 km
- Mayenne0.00 km
- Grazay0.00 km
- Mont-et-Marré0.00 km
- Saint-Saulge0.00 km
- Isenay0.00 km
- Saint-Martin-de-Lixy0.00 km
- Saint-Léger-des-Vignes0.00 km
- Écoche0.00 km
- Maizilly0.00 km
7 intersecting protected areas
Bocage, forêts et milieux humides du Sud Morvan
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Special Areas of Conservation (Habitats Directive)
Val de Loire nivernais
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Val de Loire nivernais
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Cavités à chauves-souris en Bourgogne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Bois du Tay
IUCN IVBiotope Protection Order
Biotope Protection Order
1 page = 1 named river (aggregation of 26 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 310 distinct species · 15 413 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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'Aron : 29 espèces reliées par 83 interactions GloBI sur 3 types (connectance 11.2%, filtre Serrano α=0.2). 10 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
183km
Max discharge
16,8m³/s
Max Strahler
4
Segments matched
26
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.