Ruisseau
Gusumsån
Crosses 2 administrative regions : Söderköping, Valdemarsvik
Total length
8km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
1
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- ValdemarsvikÖstergötland · Sweden8.8 kmin this dpt
- SöderköpingÖstergötland · Sweden0.0 kmin this dpt
11 intersecting protected areas
2028251 Forsums gammelskog
IUCN IaNature Reserve
SK 84-2001
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 246-2008
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 481-2003
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 484-2003
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 483-2003
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 248-2008
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 482-2003
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 249-2008
IUCN IaHabitat Protection Area
2 more protected areassorted by area
SK 480-2003
IUCN IVNature conservation agreement, Swedish Forest Agency
SK 247-2008
IUCN IVNature conservation agreement, Swedish Forest Agency
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
1 631 distinct species · 8 816 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Gusumsån : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 4 types (connectance 20.6%, 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
8km
Max discharge
0,3m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.