Ontologia

Rivière· 27 segments

Le Drac

Crosses 2 administrative regions : Hautes-Alpes, Isère

rivière

Total length

133km

Max discharge

147,5m³/s

Max Strahler

6

Segments matched

27

River geography2 admin regions · 60 communes

Parent watershed

hybas-2080554750345 km²

2 administrative regions crossed (GADM L2)

  • Isère
    Auvergne-Rhône-Alpes · France
    59.3 km
    in this dpt
  • Hautes-Alpes
    Provence-Alpes-Côte d'Azur · France
    27.9 km
    in this dpt
60 communes (L5)

7 intersecting protected areas

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

Species present

2 461 distinct species · 83 511 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 20 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 Drac : 19 espèces + 1 bulle famille, 42 interactions GloBI documentées sur 3 types (connectance 22.1%, filtre Serrano α=0.2). Les 1 bulle regroupe des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
20
Interactions affichées
42
Connectance
0.221
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

133km

Max discharge

147,5m³/s

Max Strahler

6

Segments matched

27

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