Ontologia

Ruisseau· 5 segments

Orla

Crosses 2 administrative regions : Bielsk, Hajnówka

ruisseau

Total length

232km

Max discharge

1m³/s

Max Strahler

2

Segments matched

5

River geography2 admin regions · 0 communes

Parent watershed

hybas-2080353930515 km²

2 administrative regions crossed (GADM L2)

  • Hajnówka
    Podlaskie · Poland
    16.4 km
    in this dpt
  • Bielsk
    Podlaskie · Poland
    10.8 km
    in this dpt

3 intersecting protected areas

1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

158 distinct species · 416 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 35 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 Orla : 27 espèces reliées par 56 interactions GloBI sur 5 types (connectance 9.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
56
Connectance
0.094
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

232km

Max discharge

1,0m³/s

Max Strahler

2

Segments matched

5

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