Ruisseau· 8 segments
Le Douron
Crosses 2 administrative regions : Côtes-d'Armor, Finistère
Total length
37km
Max discharge
2,5m³/s
Max Strahler
2
Segments matched
8
River geography2 admin regions · 10 communes
2 administrative regions crossed (GADM L2)
- FinistèreBretagne · France19.3 kmin this dpt
- Côtes-d'ArmorBretagne · France6.3 kmin this dpt
10 communes (L5)For countries with L5
- Botsorhel6.56 km
- Plestin-les-Grèves4.61 km
- Plouigneau4.52 km
- Plouégat-Guérand3.86 km
- Le Ponthou2.00 km
- Trémel1.67 km
- Lannéanou0.89 km
- Plouégat-Moysan0.87 km
- Locquirec0.63 km
- Guimaëc0.00 km
4 intersecting protected areas
Armorique
IUCN VRegional Nature Park
Monts d'Arrée centre et est
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rivière le Douron
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Estuaire du douron
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
1 page = 1 named river (aggregation of 8 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
556 distinct species · 7 438 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).
Indicateurs du tissu écologique
Tissu écologique de Le Douron : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 5 types (connectance 13.8%, filtre Serrano α=0.2). 14 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
37km
Max discharge
2,5m³/s
Max Strahler
2
Segments matched
8
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.