Ontologia

Ruisseau· 18 segments

Le Lignon

Crosses 3 administrative regions : Ardèche, Haute-Loire, Loire

ruisseau

Total length

184km

Max discharge

5,9m³/s

Max Strahler

3

Segments matched

18

River geography3 admin regions · 36 communes

Parent watershed

hybas-2080545620711 km²

3 administrative regions crossed (GADM L2)

  • Haute-Loire
    Auvergne-Rhône-Alpes · France
    64.3 km
    in this dpt
  • Loire
    Auvergne-Rhône-Alpes · France
    41.3 km
    in this dpt
  • Ardèche
    Auvergne-Rhône-Alpes · France
    0.0 km
    in this dpt
36 communes (L5)

10 intersecting protected areas

1 more protected areas

1 page = 1 named river (aggregation of 18 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

501 distinct species · 1 715 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 25 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 Le Lignon : 12 espèces reliées par 105 interactions GloBI sur 6 types (connectance 35.0%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
105
Connectance
0.350
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

184km

Max discharge

5,9m³/s

Max Strahler

3

Segments matched

18

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