Ontologia

Rivière· 43 segments

Brda

Crosses 8 administrative regions : Bydgoszcz, Bydgoszcz (City), Bytów, Chojnice, Człuchów +3

rivière

Total length

242km

Max discharge

30m³/s

Max Strahler

4

Segments matched

43

River geography8 admin regions · 0 communes

Parent watershed

hybas-20803400801111 km²

8 administrative regions crossed (GADM L2)

  • Człuchów
    Pomorskie · Poland
    60.8 km
    in this dpt
  • Bydgoszcz
    Kujawsko-Pomorskie · Poland
    53.7 km
    in this dpt
  • Tuchola
    Kujawsko-Pomorskie · Poland
    41.8 km
    in this dpt
  • Chojnice
    Pomorskie · Poland
    30.7 km
    in this dpt
  • Bydgoszcz (City)
    Kujawsko-Pomorskie · Poland
    28.0 km
    in this dpt
  • Świecie
    Kujawsko-Pomorskie · Poland
    1.3 km
    in this dpt
  • Toruń
    Kujawsko-Pomorskie · Poland
    0.0 km
    in this dpt
  • Bytów
    Pomorskie · Poland
    0.0 km
    in this dpt

27 intersecting protected areas

18 more protected areas

1 page = 1 named river (aggregation of 43 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

90 distinct species · 167 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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 Brda : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 59 interactions GloBI sur 5 types (connectance 8.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
59
Connectance
0.089
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

242km

Max discharge

30,0m³/s

Max Strahler

4

Segments matched

43

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