Ontologia

Rivière· 20 segments

Nätraån

Crosses 1 administrative regions : Örnsköldsvik

rivière

Total length

80km

Max discharge

12,2m³/s

Max Strahler

4

Segments matched

20

River geography1 admin regions · 0 communes

Parent watershed

hybas-20800308902625 km²

1 administrative regions crossed (GADM L2)

4 intersecting protected areas

1 page = 1 named river (aggregation of 20 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

428 distinct species · 4 795 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 19 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 Nätraån : 16 espèces reliées par 31 interactions GloBI sur 2 types (connectance 14.8%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
31
Connectance
0.148
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

80km

Max discharge

12,2m³/s

Max Strahler

4

Segments matched

20

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