Rivière· 7 segments
Helige å
Crosses 2 administrative regions : Alvesta, Växjö
Total length
21km
Max discharge
20,1m³/s
Max Strahler
4
Segments matched
7
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
30 intersecting protected areas
Åsnen
IUCN IaWetland of International Importance (Ramsar Site)
Husebymaden
IUCN IVNatura 2000 SCI
Husebymaden
IUCN IVNatura 2000 SPA
Husebymaden
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Husebymaden
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2002373 Husebymaden
IUCN IVNature Reserve
2004829 Skatelövsfjorden
IUCN Not AssignedWildlife and Plant Sanctuary
Tärningsö
IUCN Not AssignedNatura 2000 SCI
Tärningsö
IUCN Not AssignedNatura 2000 SPA
21 more protected areassorted by area
Tärningsö
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Tärningsö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2004831 Hägerkoloni på Lindö i sjön Salen
IUCN Not AssignedWildlife and Plant Sanctuary
SK 41-2010
IUCN IaHabitat Protection Area
2002584 Dragsåsen
IUCN IIINature Reserve
1073688121
IUCN Not ApplicableVoluntary set-aside areas
1073686407
IUCN Not ApplicableVoluntary set-aside areas
621007662
IUCN Not ApplicableVoluntary set-aside areas
SK 208-2007
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 948-2003
IUCN IVNature conservation agreement, Swedish Forest Agency
871133369
IUCN Not ApplicableVoluntary set-aside areas
264538504
IUCN Not ApplicableVoluntary set-aside areas
2002377 Osby offerlund
IUCN IVNature Reserve
SK 663-2006
IUCN IaHabitat Protection Area
706226731
IUCN Not ApplicableVoluntary set-aside areas
499141072
IUCN Not ApplicableVoluntary set-aside areas
914326561
IUCN Not ApplicableVoluntary set-aside areas
SK 122-2005
IUCN IVNature conservation agreement, Swedish Forest Agency
1073688122
IUCN Not ApplicableVoluntary set-aside areas
SK 209-2007
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 65-2005
IUCN IaHabitat Protection Area
1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 089 distinct species · 58 702 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 Helige å : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 3 types (connectance 15.5%, 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
21km
Max discharge
20,1m³/s
Max Strahler
4
Segments matched
7
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.