Ruisseau· 4 segments
Hörneån
Crosses 3 administrative regions : Bjurholm, Nordmaling, Umeå
Total length
43km
Max discharge
10m³/s
Max Strahler
3
Segments matched
4
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- BjurholmVästerbotten · Sweden10.5 kmin this dpt
- NordmalingVästerbotten · Sweden9.3 kmin this dpt
- UmeåVästerbotten · Sweden5.9 kmin this dpt
6 intersecting protected areas
Öreälven
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Öreälven
IUCN Not AssignedNatura 2000 SCI
SK 340-2004
IUCN IaHabitat Protection Area
SK 716-2003
IUCN IaHabitat Protection Area
SK 339-2004
IUCN IaHabitat Protection Area
SK 950-2003
IUCN IaHabitat Protection Area
1 page = 1 named river (aggregation of 4 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
206 distinct species · 2 001 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Hörneån : 33 espèces reliées par 57 interactions GloBI sur 5 types (connectance 7.7%, filtre Serrano α=0.2). 6 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
43km
Max discharge
10,0m³/s
Max Strahler
3
Segments matched
4
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.