Ontologia

Rivière· 27 segments

La Canche

Crosses 1 administrative regions : Pas-de-Calais

rivière

Total length

158km

Max discharge

28m³/s

Max Strahler

4

Segments matched

27

River geography1 admin regions · 78 communes

Parent watershed

hybas-20800224601410 km²

1 administrative regions crossed (GADM L2)

78 communes (L5)

10 intersecting protected areas

1 more protected areas

  • etang de waligny

    IUCN IV

    Land acquired by a regional conservatory of natural areas

1 page = 1 named river (aggregation of 27 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

836 distinct species · 5 000 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 31 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 Canche : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 119 interactions GloBI sur 6 types (connectance 24.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
119
Connectance
0.240
Patrimoniales
2
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

158km

Max discharge

28,0m³/s

Max Strahler

4

Segments matched

27

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