Ruisseau
Le Ris Oui
Crosses 2 administrative regions : Maine-et-Loire, Sarthe
Total length
19km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
1
River geography2 admin regions · 6 communes
2 administrative regions crossed (GADM L2)
- SarthePays de la Loire · France10.6 kmin this dpt
- Maine-et-LoirePays de la Loire · France1.5 kmin this dpt
6 communes (L5)For countries with L5
- Le Lude5.58 km
- Savigné-sous-le-Lude2.69 km
- Dissé-sous-le-Lude2.29 km
- Chigné1.31 km
- Genneteil0.18 km
- Luché-Pringé0.00 km
1 intersecting protected areas
Vallée du Loir de Vaas à Bazouges
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
1 208 distinct species · 7 486 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Ris Oui : 23 espèces reliées par 94 interactions GloBI sur 5 types (connectance 14.9%, filtre Serrano α=0.2). 13 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
19km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.