Rivière
Bignon
⚠ Partial coverage : only 1 named segment matched so far. The real rivière extends much further (Strahler order 5 indicates a major river). Cross-source ingest in progress — values below reflect only the matched segment.
Crosses 2 administrative regions : Allier, Cher
Max discharge
27,5m³/s
Max Strahler
5
Segments matched
1
River geography2 admin regions · 5 communes
2 administrative regions crossed (GADM L2)
5 communes (L5)For countries with L5
- Meaulne2.84 km
- La Perche2.38 km
- Urçay0.94 km
- Lételon0.00 km
- Épineuil-le-Fleuriel0.00 km
1 intersecting protected areas
Coteaux, bois et marais calcaires de la Champagne Berrichonne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
892 distinct species · 3 124 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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).
Indicateurs du tissu écologique
Tissu écologique de Bignon : 29 espèces + 6 bulles famille, 83 interactions GloBI documentées sur 5 types (connectance 13.9%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Matched len.
8,9km
Max discharge
27,5m³/s
Max Strahler
5
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.