HydroBASINS lev08 watershed · #5080071290
Bassin de Berowra Creek
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 3 administrative regions : Hornsby, Ku-ring-gai, The Hills
Sub-basin area
139,8km²
Upstream area
139,9km²
Discharge
1,47m³/s
Mean elev.
160m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 138.2 km²98.9% of basin
- 0.1 km²0.1% of basin
- 0.1 km²0.1% of basin
6 intersecting protected areas
Berowra Valley
IUCN IINational Park
35.95 km² overlap
Marramarra
IUCN IINational Park
0.60 km² overlap
Dural
IUCN IaNature Reserve
0.36 km² overlap
Muogamarra
IUCN IaNature Reserve
0.14 km² overlap
Berowra Valley
IUCN VRegional Park
0.09 km² overlap
Ku-ring-gai Chase
IUCN IINational Park
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 302 distinct species · 204 004 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Bassin de Berowra Creek : 34 espèces reliées par 66 interactions GloBI sur 5 types (connectance 6.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
16,6°C
Annual rain
1 193mm
Moisture idx (CMI)
-0,02
Runoff
339mm/an
PET
1 213mm
AET
962mm
Mean slope
8,3°
Water table
352cm
Forest
63%
Crops
0%
Urban
35%
Protected
26%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)