Ontologia

Rivière· 70 segments

Ma Oya

Crosses 16 administrative regions : Alawwa, Aranayaka, Dankotuwa, Divulapitiya, Galigamuwa +11

rivière

Total length

152km

Max discharge

42,9m³/s

Max Strahler

4

Segments matched

70

River geography16 admin regions · 0 communes

Parent watershed

hybas-40800490901516 km²

16 administrative regions crossed (GADM L2)

  • Divulapitiya
    Gampaha · Sri Lanka
    34.3 km
    in this dpt
  • Pannala
    Kurunegala · Sri Lanka
    31.1 km
    in this dpt
  • Aranayaka
    Kegalle · Sri Lanka
    23.7 km
    in this dpt
  • Mawanella
    Kegalle · Sri Lanka
    21.7 km
    in this dpt
  • Alawwa
    Kurunegala · Sri Lanka
    20.2 km
    in this dpt
  • Mirigama
    Gampaha · Sri Lanka
    19.2 km
    in this dpt
  • Polgahawela
    Kurunegala · Sri Lanka
    13.9 km
    in this dpt
  • Warakapola
    Kegalle · Sri Lanka
    9.0 km
    in this dpt
  • Katana
    Gampaha · Sri Lanka
    8.2 km
    in this dpt
  • Dankotuwa
    Puttalam · Sri Lanka
    6.8 km
    in this dpt
  • Rambukkana
    Kegalle · Sri Lanka
    4.9 km
    in this dpt
  • Negombo
    Gampaha · Sri Lanka
    2.5 km
    in this dpt
  • Narammala
    Kurunegala · Sri Lanka
    2.5 km
    in this dpt
  • Wennappuwa
    Puttalam · Sri Lanka
    1.6 km
    in this dpt
  • Galigamuwa
    Kegalle · Sri Lanka
    0.6 km
    in this dpt
  • Ganga Ihala Korale
    Kandy · Sri Lanka
    0.0 km
    in this dpt

11 intersecting protected areas

2 more protected areas

1 page = 1 named river (aggregation of 70 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

126 distinct species · 718 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 39 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 Ma Oya : 37 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 4 types (connectance 4.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
30
Connectance
0.041
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

152km

Max discharge

42,9m³/s

Max Strahler

4

Segments matched

70

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