Ontologia

Rivière· 44 segments

La Dronne

Crosses 5 administrative regions : Charente, Charente-Maritime, Dordogne, Gironde, Haute-Vienne

rivière

Total length

225km

Max discharge

46,9m³/s

Max Strahler

4

Segments matched

44

River geography5 admin regions · 68 communes

Parent watershed

hybas-20805513002790 km²

5 administrative regions crossed (GADM L2)

  • Dordogne
    Nouvelle-Aquitaine · France
    113.7 km
    in this dpt
  • Charente
    Nouvelle-Aquitaine · France
    18.8 km
    in this dpt
  • Gironde
    Nouvelle-Aquitaine · France
    14.6 km
    in this dpt
  • Haute-Vienne
    Nouvelle-Aquitaine · France
    13.4 km
    in this dpt
  • Charente-Maritime
    Nouvelle-Aquitaine · France
    12.1 km
    in this dpt
68 communes (L5)

14 intersecting protected areas

5 more protected areas

1 page = 1 named river (aggregation of 44 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

3 364 distinct species · 87 054 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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 Dronne : 32 espèces + 5 bulles famille, 69 interactions GloBI documentées sur 6 types (connectance 10.4%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
37
Interactions affichées
69
Connectance
0.104
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

225km

Max discharge

46,9m³/s

Max Strahler

4

Segments matched

44

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