Ontologia

Rivière· 19 segments

Attanagalu Oya

Crosses 8 administrative regions : Attanagalla, Gampaha, Ja-Ela, Katana, Minuwangoda +3

rivière

Total length

31km

Max discharge

18,1m³/s

Max Strahler

4

Segments matched

19

River geography8 admin regions · 0 communes

Parent watershed

hybas-4080049070808 km²

8 administrative regions crossed (GADM L2)

  • Attanagalla
    Gampaha · Sri Lanka
    24.7 km
    in this dpt
  • Minuwangoda
    Gampaha · Sri Lanka
    12.9 km
    in this dpt
  • Katana
    Gampaha · Sri Lanka
    7.6 km
    in this dpt
  • Warakapola
    Kegalle · Sri Lanka
    2.5 km
    in this dpt
  • Mirigama
    Gampaha · Sri Lanka
    1.8 km
    in this dpt
  • Ja-Ela
    Gampaha · Sri Lanka
    0.0 km
    in this dpt
  • Gampaha
    Gampaha · Sri Lanka
    0.0 km
    in this dpt
  • Ruwanwella
    Kegalle · Sri Lanka
    0.0 km
    in this dpt

1 page = 1 named river (aggregation of 19 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

184 distinct species · 688 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 Attanagalu Oya : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 33 interactions GloBI sur 4 types (connectance 5.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
33
Connectance
0.052
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

31km

Max discharge

18,1m³/s

Max Strahler

4

Segments matched

19

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