Ruisseau
Ruisseau de la Mare l'Ourdon
Crosses 1 administrative regions : Nièvre
Total length
5km
Max discharge
0,1m³/s
Max Strahler
1
Segments matched
1
River geography1 admin regions · 3 communes
1 administrative regions crossed (GADM L2)
- NièvreBourgogne-Franche-Comté · France1.0 kmin this dpt
3 communes (L5)For countries with L5
- Murlin0.83 km
- La Celle-sur-Nièvre0.21 km
- Chasnay0.00 km
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
789 distinct species · 6 224 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Ruisseau de la Mare l'Ourdon : 27 espèces + 3 bulles famille, 54 interactions GloBI documentées sur 3 types (connectance 12.4%, filtre Serrano α=0.2). Les 3 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)
Total length
5km
Max discharge
0,1m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.