Rivière· 3 segments
Le Merdon
Crosses 2 administrative regions : Loir-et-Cher, Sarthe
Total length
4km
Max discharge
28,7m³/s
Max Strahler
5
Segments matched
3
River geography2 admin regions · 11 communes
2 administrative regions crossed (GADM L2)
- Loir-et-CherCentre-Val de Loire · France18.0 kmin this dpt
- SarthePays de la Loire · France0.0 kmin this dpt
11 communes (L5)For countries with L5
- Ternay7.02 km
- Artins5.57 km
- Sougé2.66 km
- Saint-Jacques-des-Guérets1.50 km
- Montoire-sur-le-Loir0.73 km
- Les Hayes0.40 km
- Saint-Martin-des-Bois0.11 km
- Montrouveau0.00 km
- Troo0.00 km
- Couture-sur-Loir0.00 km
- Lavenay0.00 km
2 intersecting protected areas
Special Areas of Conservation (Habitats Directive)
pres des rivieres (les)
IUCN IVLand acquired by a regional conservatory of natural areas
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
794 distinct species · 6 587 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 Merdon : 32 espèces reliées par 86 interactions GloBI sur 5 types (connectance 13.7%, filtre Serrano α=0.2). 4 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
4km
Max discharge
28,7m³/s
Max Strahler
5
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.