Rivière· 15 segments
L'Oudon
Crosses 2 administrative regions : Maine-et-Loire, Mayenne
Total length
133km
Max discharge
13,5m³/s
Max Strahler
4
Segments matched
15
River geography2 admin regions · 28 communes
2 administrative regions crossed (GADM L2)
- MayennePays de la Loire · France47.9 kmin this dpt
- Maine-et-LoirePays de la Loire · France18.7 kmin this dpt
28 communes (L5)For countries with L5
- Craon11.83 km
- Segré6.04 km
- Châtelais5.33 km
- Cossé-le-Vivien4.76 km
- Athée4.62 km
- Chérancé4.61 km
- Ruillé-le-Gravelais4.06 km
- Bouchamps-lès-Craon3.86 km
- Montjean3.85 km
- Niafles3.23 km
- Louvaines2.21 km
- L'Hôtellerie-de-Flée2.20 km
- Beaulieu-sur-Oudon2.13 km
- Saint-Quentin-les-Anges1.99 km
- Nyoiseau1.79 km
- La Chapelle-Craonnaise1.55 km
- La Chapelle-sur-Oudon1.12 km
- Livré-la-Touche1.09 km
- La Selle-Craonnaise0.26 km
- Saint-Cyr-le-Gravelais0.00 km
- Loiron0.00 km
- Andigné0.00 km
- Sainte-Gemmes-d'Andigné0.00 km
- Cosmes0.00 km
- Denazé0.00 km
- Mée0.00 km
- Pommerieux0.00 km
- Saint-Martin-du-Limet0.00 km
2 intersecting protected areas
Biotope Protection Order
Biotope Protection Order
1 page = 1 named river (aggregation of 15 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
530 distinct species · 1 337 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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'Oudon : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 112 interactions GloBI sur 6 types (connectance 14.4%, filtre Serrano α=0.2). 12 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
133km
Max discharge
13,5m³/s
Max Strahler
4
Segments matched
15
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.