Ontologia — Encyclopédie du vivant

River geography3 admin regions · 102 communes

Parent watershed

hybas-20800221302302 km²

3 administrative regions crossed (GADM L2)

Eure
Normandie · France
163.1 km
in this dpt
Orne
Normandie · France
43.4 km
in this dpt
Seine-Maritime
Normandie · France
0.0 km
in this dpt

102 communes (L5)For countries with L5

17 intersecting protected areas

Boucles De La Seine Normande
IUCN V
Regional Nature Park
Bocages et vergers du sud Pays d'Auge
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Estuaire et marais de la Basse Seine
IUCN Not Reported
Special Protection Area (Birds Directive)
Estuaire de la Seine
IUCN Not Reported
Marine Protected Area (OSPAR)
Estuaire de la Seine
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Marais Vernier et Vallée de la Risle maritime
IUCN Not Reported
Wetland of International Importance (Ramsar Site)
Estuaire De La Seine
IUCN IV
National Nature Reserve
Estuaire de la Seine
IUCN Not Reported
Marine Protected Area (OSPAR)
Marais Vernier, Risle Maritime
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)

8 more protected areassorted by area

Risle, Guiel, Charentonne
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Corbie
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Risle maritime
IUCN IV
Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
les pres de l\'abbaye
IUCN IV
Land acquired by a regional conservatory of natural areas
le moulin d aclou
IUCN IV
Land acquired by a regional conservatory of natural areas
Grotte De La Grande Vallée
IUCN IV
Biotope Protection Order
la cote hamelot
IUCN IV
Land acquired by a regional conservatory of natural areas
les cavités de Beaumont-le-Roger
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)

1 page = 1 named river (aggregation of 50 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

807 distinct species · 4 713 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de La Risle : 28 espèces reliées par 95 interactions GloBI sur 7 types (connectance 15.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

36

Interactions affichées

95

Connectance

0.151

Patrimoniales

0

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

174km

Max discharge

38,5m³/s

Max Strahler

4

Segments matched

50

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.

La Risle

🗺️River geography3 admin regions · 102 communes