Rivière
Segadalsåna
Crosses 1 administrative regions : Hjelmeland
Total length
1km
Max discharge
11,7m³/s
Max Strahler
4
Segments matched
1
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- HjelmelandRogaland · Norway0.3 kmin this dpt
3 intersecting protected areas
Vormedalsheia
IUCN Not ReportedEmerald Network
Vormedalsheia
IUCN VProtected Landscape
Nordraheia
IUCN IaNature Reserve
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
448 distinct species · 1 057 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Segadalsåna : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 6 types (connectance 8.7%, 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
1km
Max discharge
11,7m³/s
Max Strahler
4
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.