Ruisseau· 2 segments
Le Grand Fossé
Crosses 4 administrative regions : Aisne, Marne, Oise, Seine-et-Marne
Total length
29km
Max discharge
6,3m³/s
Max Strahler
3
Segments matched
2
River geography4 admin regions · 9 communes
4 administrative regions crossed (GADM L2)
- OiseHauts-de-France · France2.8 kmin this dpt
- MarneGrand Est · France2.0 kmin this dpt
- Seine-et-MarneÎle-de-France · France1.5 kmin this dpt
- AisneHauts-de-France · France0.0 kmin this dpt
9 communes (L5)For countries with L5
- Sogny-en-l'Angle1.77 km
- Varinfroy1.62 km
- Neufchelles1.13 km
- Crouy-sur-Ourcq0.95 km
- May-en-Multien0.55 km
- Vanault-les-Dames0.20 km
- Montigny-l'Allier0.00 km
- Val-de-Vière0.00 km
- Heiltz-le-Maurupt0.00 km
2 intersecting protected areas
Etangs de la Champagne humide
IUCN Not ReportedWetland of International Importance (Ramsar Site)
Étangs d'Argonne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
516 distinct species · 1 717 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Le Grand Fossé : 24 espèces reliées par 95 interactions GloBI sur 4 types (connectance 18.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
29km
Max discharge
6,3m³/s
Max Strahler
3
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.