Ruisseau· 2 segments
La Berthe
Crosses 2 administrative regions : Eure-et-Loir, Orne
Total length
26km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
2
River geography2 admin regions · 10 communes
2 administrative regions crossed (GADM L2)
- Eure-et-LoirCentre-Val de Loire · France8.0 kmin this dpt
- OrneNormandie · France1.3 kmin this dpt
10 communes (L5)For countries with L5
- Trizay-Coutretot-Saint-Serge4.95 km
- Vichères1.70 km
- Nogent-le-Rotrou1.36 km
- Les Ventes-de-Bourse1.30 km
- Marchemaisons0.00 km
- Argenvilliers0.00 km
- Saint-Léger-sur-Sarthe0.00 km
- Champrond-en-Perchet0.00 km
- Saint-Jean-Pierre-Fixte0.00 km
- Souancé-au-Perche0.00 km
2 intersecting protected areas
Normandie-Maine
IUCN VRegional Nature Park
Perche
IUCN VRegional Nature Park
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 225 distinct species · 13 619 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Berthe : 17 espèces reliées par 116 interactions GloBI sur 6 types (connectance 22.0%, filtre Serrano α=0.2). 16 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
26km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.