Ontologia

Rivière· 87 segments

La Marne

Crosses 8 administrative regions : Aisne, Haute-Marne, Marne, Meuse, Paris +3

rivière

Total length

532km

Max discharge

96,2m³/s

Max Strahler

5

Segments matched

87

River geography8 admin regions · 247 communes

Parent watershed

hybas-20804564001729 km²

8 administrative regions crossed (GADM L2)

  • Marne
    Grand Est · France
    139.8 km
    in this dpt
  • Haute-Marne
    Grand Est · France
    78.3 km
    in this dpt
  • Seine-et-Marne
    Île-de-France · France
    75.5 km
    in this dpt
  • Aisne
    Hauts-de-France · France
    54.2 km
    in this dpt
  • Val-de-Marne
    Île-de-France · France
    10.6 km
    in this dpt
  • Meuse
    Grand Est · France
    2.9 km
    in this dpt
  • Seine-Saint-Denis
    Île-de-France · France
    0.5 km
    in this dpt
  • Paris
    Île-de-France · France
    0.0 km
    in this dpt
247 communes (L5)

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 87 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

984 distinct species · 6 945 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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 Marne : 26 espèces reliées par 123 interactions GloBI sur 5 types (connectance 18.5%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
123
Connectance
0.185
Patrimoniales
0
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

532km

Max discharge

96,2m³/s

Max Strahler

5

Segments matched

87

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