Ontologia

Ruisseau· 11 segments

La Calonne

Crosses 2 administrative regions : Calvados, Eure

ruisseau

Total length

56km

Max discharge

22m³/s

Max Strahler

3

Segments matched

11

River geography2 admin regions · 32 communes

Parent watershed

hybas-20800220801281 km²

2 administrative regions crossed (GADM L2)

  • Eure
    Normandie · France
    25.8 km
    in this dpt
  • Calvados
    Normandie · France
    18.2 km
    in this dpt
32 communes (L5)

3 intersecting protected areas

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

Species present

691 distinct species · 2 250 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 38 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 La Calonne : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 4 types (connectance 10.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
74
Connectance
0.105
Patrimoniales
1
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

56km

Max discharge

22,0m³/s

Max Strahler

3

Segments matched

11

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