Ruisseau
Le Porz al Lan
Crosses 1 administrative regions : Côtes-d'Armor
Total length
4km
Max discharge
0,2m³/s
Max Strahler
1
Segments matched
1
River geography1 admin regions · 3 communes
1 administrative regions crossed (GADM L2)
- Côtes-d'ArmorBretagne · France1.1 kmin this dpt
3 communes (L5)For countries with L5
- Ploumilliau0.67 km
- Ploubezre0.47 km
- Ploulec'h0.00 km
1 intersecting protected areas
Rivière Leguer, forêts de Beffou, Coat an Noz et Coat an Hay
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
718 distinct species · 4 519 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Porz al Lan : 36 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 85 interactions GloBI sur 6 types (connectance 9.0%, filtre Serrano α=0.2). 8 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
4km
Max discharge
0,2m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.