Ontologia

Ruisseau· 24 segments

Le Grand Morin

Crosses 2 administrative regions : Marne, Seine-et-Marne

ruisseau

Total length

131km

Max discharge

7,9m³/s

Max Strahler

3

Segments matched

24

River geography2 admin regions · 49 communes

Parent watershed

hybas-20804574201192 km²

2 administrative regions crossed (GADM L2)

  • Seine-et-Marne
    Île-de-France · France
    66.1 km
    in this dpt
  • Marne
    Grand Est · France
    36.3 km
    in this dpt
49 communes (L5)

3 intersecting protected areas

1 page = 1 named river (aggregation of 24 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

763 distinct species · 7 507 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 41 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 Le Grand Morin : 36 espèces reliées par 108 interactions GloBI sur 6 types (connectance 13.2%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
108
Connectance
0.132
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

131km

Max discharge

7,9m³/s

Max Strahler

3

Segments matched

24

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