Ontologia

Ruisseau· 10 segments

La Chère

Crosses 2 administrative regions : Ille-et-Vilaine, Loire-Atlantique

ruisseau

Total length

70km

Max discharge

6,4m³/s

Max Strahler

3

Segments matched

10

River geography2 admin regions · 11 communes

Parent watershed

hybas-20804910202421 km²

2 administrative regions crossed (GADM L2)

11 communes (L5)

2 intersecting protected areas

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

347 distinct species · 945 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 42 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 Chère : 39 espèces + 3 bulles famille, 109 interactions GloBI documentées sur 5 types (connectance 12.7%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
42
Interactions affichées
109
Connectance
0.127
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

70km

Max discharge

6,4m³/s

Max Strahler

3

Segments matched

10

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