Ruisseau· 12 segments
Mawak Oya
Crosses 5 administrative regions : Bulathsinhala, Horana, Ingiriya, Madurawala, Padukka
Total length
20km
Max discharge
4,7m³/s
Max Strahler
3
Segments matched
12
River geography5 admin regions · 0 communes
5 administrative regions crossed (GADM L2)
- IngiriyaKalutara · Sri Lanka24.3 kmin this dpt
- PadukkaColombo · Sri Lanka3.3 kmin this dpt
- HoranaKalutara · Sri Lanka3.3 kmin this dpt
- MadurawalaKalutara · Sri Lanka0.2 kmin this dpt
- BulathsinhalaKalutara · Sri Lanka0.0 kmin this dpt
1 intersecting protected areas
Labugama Kalatuwawa
IUCN IbReserved Forest
1 page = 1 named river (aggregation of 12 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
190 distinct species · 1 870 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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).
Indicateurs du tissu écologique
Tissu écologique de Mawak Oya : 21 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
20km
Max discharge
4,7m³/s
Max Strahler
3
Segments matched
12
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.