Ontologia

Rivière· 2 segments

Le Marceau

Crosses 1 administrative regions : Charente

rivière

Total length

6km

Max discharge

80,9m³/s

Max Strahler

5

Segments matched

2

River geography1 admin regions · 5 communes

Parent watershed

hybas-20805373002660 km²

1 administrative regions crossed (GADM L2)

  • Charente
    Nouvelle-Aquitaine · France
    8.9 km
    in this dpt
5 communes (L5)

3 intersecting protected areas

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 109 distinct species · 6 959 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 40 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 Marceau : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 159 interactions GloBI sur 6 types (connectance 19.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
159
Connectance
0.194
Patrimoniales
1
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

6km

Max discharge

80,9m³/s

Max Strahler

5

Segments matched

2

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