Ruisseau· 17 segments
La Sarre
Crosses 1 administrative regions : Morbihan
Total length
134km
Max discharge
3,2m³/s
Max Strahler
2
Segments matched
17
River geography1 admin regions · 10 communes
1 administrative regions crossed (GADM L2)
- MorbihanBretagne · France38.5 kmin this dpt
10 communes (L5)For countries with L5
4 intersecting protected areas
Biotope Protection Order
Rivière Scorff, Forêt de Pont Calleck, Rivière Sarre
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Biotope Protection Order
Biotope Protection Order
1 page = 1 named river (aggregation of 17 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
326 distinct species · 1 334 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).
Indicateurs du tissu écologique
Tissu écologique de La Sarre : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 6 types (connectance 10.4%, filtre Serrano α=0.2). 10 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
134km
Max discharge
3,2m³/s
Max Strahler
2
Segments matched
17
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.