Ontologia

Rivière· 49 segments

Deduru Oya

Crosses 17 administrative regions : Arachchikattuwa PS, Bingiriya, Chilaw, Ganewatta, Ibbagamuwa +12

rivière

Total length

147km

Max discharge

58,5m³/s

Max Strahler

5

Segments matched

49

River geography17 admin regions · 0 communes

Parent watershed

hybas-4081157380240 km²

17 administrative regions crossed (GADM L2)

12 intersecting protected areas

3 more protected areas

1 page = 1 named river (aggregation of 49 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

57 distinct species · 103 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 15 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 Deduru Oya : 14 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 9 interactions GloBI sur 2 types (connectance 8.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
15
Interactions affichées
9
Connectance
0.086
Patrimoniales
2
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

147km

Max discharge

58,5m³/s

Max Strahler

5

Segments matched

49

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