Ruisseau· 2 segments
Le Rouloir
Crosses 1 administrative regions : Eure
Total length
12km
Max discharge
3,7m³/s
Max Strahler
3
Segments matched
2
River geography1 admin regions · 13 communes
1 administrative regions crossed (GADM L2)
- EureNormandie · France12.8 kmin this dpt
13 communes (L5)For countries with L5
- Conches-en-Ouche6.80 km
- Glisolles2.25 km
- Saint-Élier1.31 km
- La Croisille1.20 km
- Beaubray0.93 km
- Le Fresne0.17 km
- Gaudreville-la-Rivière0.11 km
- Sainte-Marthe0.01 km
- Nagel-Séez-Mesnil0.00 km
- Burey0.00 km
- Les Ventes0.00 km
- Champ-Dolent0.00 km
- Louversey0.00 km
1 intersecting protected areas
Les étangs et mares des forêts de Breteuil et Conches
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 036 distinct species · 7 319 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Rouloir : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 5 types (connectance 13.4%, filtre Serrano α=0.2). 11 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
12km
Max discharge
3,7m³/s
Max Strahler
3
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.