Ontologia

Rivière

Nant Brun

Crosses 1 administrative regions : Savoie

rivière

Total length

4km

Max discharge

28,7m³/s

Max Strahler

4

Segments matched

1

River geography1 admin regions · 11 communes

Parent watershed

hybas-20805397701980 km²

1 administrative regions crossed (GADM L2)

  • Savoie
    Auvergne-Rhône-Alpes · France
    12.6 km
    in this dpt
11 communes (L5)

7 intersecting protected areas

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

Species present

1 542 distinct species · 11 649 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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 Nant Brun : 35 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 6 types (connectance 12.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
102
Connectance
0.124
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

4km

Max discharge

28,7m³/s

Max Strahler

4

Segments matched

1

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