Ruisseau
Cowan Creek
Crosses 3 administrative regions : Hornsby, Ku-ring-gai, Warringah
Total length
152km
Max discharge
0,9m³/s
Max Strahler
2
Segments matched
1
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- WarringahNew South Wales · Australia1.3 kmin this dpt
- HornsbyNew South Wales · Australia0.2 kmin this dpt
- Ku-ring-gaiNew South Wales · Australia0.1 kmin this dpt
1 intersecting protected areas
Ku-ring-gai Chase
IUCN IINational Park
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
2 496 distinct species · 36 555 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Cowan Creek : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 66 interactions GloBI sur 5 types (connectance 6.1%, filtre Serrano α=0.2). 14 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
152km
Max discharge
0,9m³/s
Max Strahler
2
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.