Ruisseau· 3 segments
Gräftån
Crosses 2 administrative regions : Berg, Åre
Total length
29km
Max discharge
1m³/s
Max Strahler
2
Segments matched
3
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
8 intersecting protected areas
2000903 Marntallåsen
IUCN IbNature Reserve
Marntallsåsen
IUCN IbNatura 2000 SCI
Marntallsåsen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Dammån-Storån
IUCN Not AssignedNatura 2000 SCI
Dammån-Storån
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
SK 218-2009
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 441-2005
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 843-2003
IUCN IaHabitat Protection Area
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
232 distinct species · 1 855 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Gräftån : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 4 types (connectance 9.6%, filtre Serrano α=0.2). 9 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
29km
Max discharge
1,0m³/s
Max Strahler
2
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.