Ontologia

Rivière· 102 segments

L'Allier

Crosses 7 administrative regions : Allier, Ardèche, Cher, Haute-Loire, Lozère +2

rivière

Total length

451km

Max discharge

135m³/s

Max Strahler

5

Segments matched

102

River geography7 admin regions · 163 communes

Parent watershed

hybas-20805318601960 km²

7 administrative regions crossed (GADM L2)

  • Allier
    Auvergne-Rhône-Alpes · France
    110.1 km
    in this dpt
  • Puy-de-Dôme
    Auvergne-Rhône-Alpes · France
    94.8 km
    in this dpt
  • Haute-Loire
    Auvergne-Rhône-Alpes · France
    80.0 km
    in this dpt
  • Lozère
    Occitanie · France
    30.6 km
    in this dpt
  • Nièvre
    Bourgogne-Franche-Comté · France
    19.9 km
    in this dpt
  • Cher
    Centre-Val de Loire · France
    9.2 km
    in this dpt
  • Ardèche
    Auvergne-Rhône-Alpes · France
    6.4 km
    in this dpt
163 communes (L5)

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 102 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

6 519 distinct species · 415 518 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'Allier : 27 espèces + 6 bulles famille, 49 interactions GloBI documentées sur 6 types (connectance 9.3%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
33
Interactions affichées
49
Connectance
0.093
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

451km

Max discharge

135,0m³/s

Max Strahler

5

Segments matched

102

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