Ontologia

Ruisseau· 11 segments

L'Avre

Crosses 3 administrative regions : Eure, Eure-et-Loir, Orne

ruisseau

Total length

89km

Max discharge

10,8m³/s

Max Strahler

3

Segments matched

11

River geography3 admin regions · 36 communes

Parent watershed

hybas-2080460590944 km²

3 administrative regions crossed (GADM L2)

  • Eure
    Normandie · France
    46.8 km
    in this dpt
  • Orne
    Normandie · France
    18.9 km
    in this dpt
  • Eure-et-Loir
    Centre-Val de Loire · France
    1.7 km
    in this dpt
36 communes (L5)

8 intersecting protected areas

1 page = 1 named river (aggregation of 11 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

795 distinct species · 3 357 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 33 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

Indicateurs du tissu écologique

Tissu écologique de L'Avre : 23 espèces reliées par 95 interactions GloBI sur 6 types (connectance 18.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
95
Connectance
0.180
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

89km

Max discharge

10,8m³/s

Max Strahler

3

Segments matched

11

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