Ontologia

Ruisseau

Grannebyån

Crosses 1 administrative regions : Kungälv

ruisseau

Total length

13km

Max discharge

0,5m³/s

Max Strahler

1

Segments matched

1

River geography1 admin regions · 0 communes

Parent watershed

hybas-20800333301839 km²

1 administrative regions crossed (GADM L2)

  • Kungälv
    Västra Götaland · Sweden
    12.2 km
    in this dpt

10 intersecting protected areas

1 more protected areas

  • SK 340-2003

    IUCN IV

    Nature conservation agreement, Swedish Forest Agency

1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.

Species present

1 247 distinct species · 20 879 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 33 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Grannebyån : 22 espèces reliées par 94 interactions GloBI sur 5 types (connectance 16.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
94
Connectance
0.168
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

13km

Max discharge

0,5m³/s

Max Strahler

1

Segments matched

1

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.