HydroBASINS lev08 watershed · #5080582680
Bassin de Preston River
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 6 administrative regions : Boyup Brook, Bunbury, Capel, Collie, Dardanup +1
Sub-basin area
1 157,5km²
Upstream area
1 157,5km²
Discharge
12,1m³/s
Mean elev.
170m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
6 dept-equivalent regions (GADM L2)
- 674.4 km²58.3% of basin
- 319.4 km²27.6% of basin
- 77.5 km²6.7% of basin
- 42.3 km²3.7% of basin
- 35.2 km²3.0% of basin
- 8.1 km²0.7% of basin
18 intersecting protected areas
Wellington
IUCN IINational Park
73.69 km² overlap
Greater Preston
IUCN IINational Park
71.15 km² overlap
Wellington Discovery Forest
IUCN IV5(1)(h) Reserve
6.83 km² overlap
Dardanup
IUCN IIConservation Park
6.43 km² overlap
Unnamed WA26238
IUCN IaNature Reserve
1.88 km² overlap
Conservation Covenant
0.38 km² overlap
Conservation Covenant
0.37 km² overlap
Unnamed WA49857
IUCN IaNature Reserve
0.35 km² overlap
Conservation Covenant
0.26 km² overlap
9 more protected areassorted by overlap area
Conservation Covenant
0.22 km² overlap
North Boyanup
IUCN IaNature Reserve
0.20 km² overlap
Conservation Covenant
0.18 km² overlap
Conservation Covenant
0.17 km² overlap
Unnamed WA40552
IUCN VI5(1)(h) Reserve
0.14 km² overlap
Unnamed WA46108
IUCN IaNature Reserve
0.12 km² overlap
Conservation Covenant
0.07 km² overlap
Conservation Covenant
0.03 km² overlap
Unnamed WA53600
IUCN IaNature Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 176 distinct species · 52 495 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Preston River : 22 espèces reliées par 31 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 9 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°
15,5°C
Annual rain
902mm
Moisture idx (CMI)
-0,33
Runoff
398mm/an
PET
1 350mm
AET
667mm
Mean slope
4,0°
Water table
274cm
Forest
51%
Crops
1%
Urban
1%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)