Ontologia

Rivière· 40 segments

La Sèvre Niortaise

Crosses 3 administrative regions : Charente-Maritime, Deux-Sèvres, Vendée

rivière

Total length

168km

Max discharge

58,1m³/s

Max Strahler

4

Segments matched

40

River geography3 admin regions · 45 communes

Parent watershed

hybas-2080523360983 km²

3 administrative regions crossed (GADM L2)

45 communes (L5)

26 intersecting protected areas

17 more protected areas

1 page = 1 named river (aggregation of 40 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

923 distinct species · 7 002 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 43 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 Sèvre Niortaise : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 142 interactions GloBI sur 5 types (connectance 15.0%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
142
Connectance
0.150
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

168km

Max discharge

58,1m³/s

Max Strahler

4

Segments matched

40

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