HydroBASINS lev08 watershed · #5080071300
Bassin de Quarry 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 12 administrative regions : Hornsby, Hunters Hill, Ku-ring-gai, Lane Cove, Manly +7
Sub-basin area
593km²
Upstream area
593km²
Discharge
3,18m³/s
Mean elev.
89m
Administrative coverage
12 dept-equivalent regions (GADM L2)
- 149.3 km²25.2% of basin
- 110.5 km²18.6% of basin
- 90.3 km²15.2% of basin
- 85.3 km²14.4% of basin
- 22.6 km²3.8% of basin
- 22.4 km²3.8% of basin
- 14.4 km²2.4% of basin
- 10.5 km²1.8% of basin
4 moreFull L2 list
- North Sydney10.5 km² · 1.8%
- Mosman8.6 km² · 1.5%
- Hunters Hill1.9 km² · 0.3%
- Parramatta1.6 km² · 0.3%
15 intersecting protected areas
Ku-ring-gai Chase
IUCN IINational Park
154.88 km² overlap
Muogamarra
IUCN IaNature Reserve
25.51 km² overlap
Garigal
IUCN IINational Park
22.63 km² overlap
Lane Cove
IUCN IINational Park
7.19 km² overlap
Sydney Harbour
IUCN IINational Park
3.42 km² overlap
North Sydney Harbour
IUCN IVAquatic Reserve
1.43 km² overlap
Long Island
IUCN IaNature Reserve
0.68 km² overlap
Long Reef
IUCN IVAquatic Reserve
0.67 km² overlap
Barrenjoey
IUCN IVAquatic Reserve
0.24 km² overlap
6 more protected areassorted by overlap area
Marramarra
IUCN IINational Park
0.21 km² overlap
Cabbage Tree Bay
IUCN IIAquatic Reserve
0.17 km² overlap
Dalrymple-Hay
IUCN IaNature Reserve
0.11 km² overlap
Narrabeen
IUCN IVAquatic Reserve
0.07 km² overlap
Wallumatta
IUCN IaNature Reserve
0.06 km² overlap
Berowra Valley
IUCN IINational Park
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
17 711 distinct species · 1 436 589 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Quarry Creek : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 64 interactions GloBI sur 4 types (connectance 9.1%, 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°
17,1°C
Annual rain
1 263mm
Moisture idx (CMI)
0,07
Runoff
348mm/an
PET
1 175mm
AET
972mm
Mean slope
6,9°
Water table
345cm
Forest
52%
Crops
0%
Urban
52%
Protected
37%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)