Ontologia

Ruisseau· 10 segments

Калница

Crosses 3 administrative regions : Elhovo, Topolovgrad, Tundzha

ruisseau

Total length

49km

Max discharge

1,4m³/s

Max Strahler

3

Segments matched

10

River geography3 admin regions · 0 communes

Parent watershed

hybas-2080600550852 km²

3 administrative regions crossed (GADM L2)

  • Tundzha
    Yambol · Bulgaria
    42.0 km
    in this dpt
  • Elhovo
    Yambol · Bulgaria
    9.7 km
    in this dpt
  • Topolovgrad
    Haskovo · Bulgaria
    4.0 km
    in this dpt

6 intersecting protected areas

  • Tundzha

    IUCN Not Assigned

    State Game Husbandries

  • Sakar

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Sakar

    IUCN Not Reported

    Special Protection Area (Birds Directive)

  • Topolovgrad

    IUCN Not Assigned

    State Game Husbandries

  • Sveti Iliyski vazvishenia

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Reka Tundzha 2

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

77 distinct species · 511 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 21 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 Калница : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 3 types (connectance 19.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
41
Connectance
0.195
Patrimoniales
1
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

49km

Max discharge

1,4m³/s

Max Strahler

3

Segments matched

10

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