Ontologia

Rivière

Holt-Sió

⚠ Partial coverage : only 1 named segment matched so far. The real rivière extends much further (Strahler order 5 indicates a major river). Cross-source ingest in progress — values below reflect only the matched segment.

Crosses 2 administrative regions : Kalocsa, Szekszárd

rivière

Max discharge

48,9m³/s

Max Strahler

5

Segments matched

1

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080522960195 km²

2 administrative regions crossed (GADM L2)

  • Szekszárd
    Tolna · Hungary
    7.3 km
    in this dpt
  • Kalocsa
    Bács-Kiskun · Hungary
    0.2 km
    in this dpt

4 intersecting protected areas

  • Duna–Dráva Nemzeti Park

    IUCN V

    National Park

  • Gemenc

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Gemenc

    IUCN V

    Wetland of International Importance (Ramsar Site)

  • Gemenc

    IUCN Not Reported

    Special Protection Area (Birds Directive)

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

Species present

373 distinct species · 641 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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 Holt-Sió : 27 espèces reliées par 46 interactions GloBI sur 5 types (connectance 7.3%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
46
Connectance
0.073
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)

Matched len.

3,9km

Max discharge

48,9m³/s

Max Strahler

5

Segments matched

1

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