Ontologia

Ruisseau· 13 segments

Seda

Crosses 3 administrative regions : Valga, Valka, Valmiera

ruisseau

Total length

67km

Max discharge

6,4m³/s

Max Strahler

3

Segments matched

13

River geography3 admin regions · 0 communes

Parent watershed

hybas-20800274603569 km²

3 administrative regions crossed (GADM L2)

  • Valka
    Vidzeme · Latvia
    43.9 km
    in this dpt
  • Valmiera
    Vidzeme · Latvia
    25.5 km
    in this dpt
  • Valga
    Valga · Estonia
    0.0 km
    in this dpt

15 intersecting protected areas

6 more protected areas

1 page = 1 named river (aggregation of 13 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

13 distinct species · 22 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 5 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 Seda : 5 espèces reliées par 4 interactions GloBI sur 2 types (connectance 40.0%, filtre Serrano α=0.2).

Espèces affichées
5
Interactions affichées
4
Connectance
0.400
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

67km

Max discharge

6,4m³/s

Max Strahler

3

Segments matched

13

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