Rivière· 5 segments
La Dême
Crosses 3 administrative regions : Indre-et-Loire, Loir-et-Cher, Sarthe
Total length
42km
Max discharge
37,5m³/s
Max Strahler
5
Segments matched
5
River geography3 admin regions · 13 communes
3 administrative regions crossed (GADM L2)
- Indre-et-LoireCentre-Val de Loire · France15.8 kmin this dpt
- SarthePays de la Loire · France12.9 kmin this dpt
- Loir-et-CherCentre-Val de Loire · France0.0 kmin this dpt
13 communes (L5)For countries with L5
- Marçon8.07 km
- Marray6.30 km
- Beaumont-sur-Dême4.78 km
- Chemillé-sur-Dême4.28 km
- Épeigné-sur-Dême2.55 km
- Louestault2.46 km
- La Ferrière0.21 km
- Dissay-sous-Courcillon0.00 km
- Flée0.00 km
- Vouvray-sur-Loir0.00 km
- Villedieu-le-Château0.00 km
- Chahaignes0.00 km
- Neuvy-le-Roi0.00 km
1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
737 distinct species · 2 817 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 La Dême : 29 espèces + 6 bulles famille, 73 interactions GloBI documentées sur 5 types (connectance 12.3%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
42km
Max discharge
37,5m³/s
Max Strahler
5
Segments matched
5
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.