HydroBASINS lev08 watershed · #5080076980
Bassin de Kalgan 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 4 administrative regions : Albany, Cranbrook, Gnowangerup, Plantagenet
Sub-basin area
3 246,9km²
Upstream area
3 246,9km²
Discharge
17,21m³/s
Mean elev.
177m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 1907.2 km²58.7% of basin
- 1050.8 km²32.4% of basin
- 223.9 km²6.9% of basin
- 48.2 km²1.5% of basin
30 intersecting protected areas
Stirling Range
IUCN IINational Park
483.12 km² overlap
Porongurup
IUCN IINational Park
26.86 km² overlap
Mill Brook
IUCN IaNature Reserve
14.84 km² overlap
South Stirling
IUCN IaNature Reserve
13.24 km² overlap
Bakers Junction
IUCN IaNature Reserve
10.87 km² overlap
Gull Rock
IUCN IINational Park
5.29 km² overlap
Conservation Covenant
3.83 km² overlap
Unnamed WA23850
IUCN IaNature Reserve
3.63 km² overlap
Chillinup
IUCN IaNature Reserve
3.30 km² overlap
21 more protected areassorted by overlap area
Unnamed WA25705
IUCN IaNature Reserve
2.63 km² overlap
Napier
IUCN IaNature Reserve
2.19 km² overlap
Kojaneerup South
IUCN IaNature Reserve
2.03 km² overlap
Granite Hill
IUCN IaNature Reserve
1.27 km² overlap
Mount Mason
IUCN IaNature Reserve
1.19 km² overlap
Woogenellup
IUCN IaNature Reserve
1.19 km² overlap
Unnamed WA33308
IUCN II5(1)(h) Reserve
1.00 km² overlap
Unnamed WA16262
IUCN IaNature Reserve
0.84 km² overlap
Hassell
IUCN IINational Park
0.68 km² overlap
Unnamed WA15775
IUCN IaNature Reserve
0.61 km² overlap
Unnamed WA54079
IUCN IaNature Reserve
0.58 km² overlap
Kalgan Plains
IUCN IaNature Reserve
0.52 km² overlap
Phillips Brook
IUCN IaNature Reserve
0.50 km² overlap
Conservation Covenant
0.46 km² overlap
Unnamed WA23923
IUCN IaNature Reserve
0.40 km² overlap
Chorkerup
IUCN IaNature Reserve
0.14 km² overlap
Conservation Covenant
0.11 km² overlap
Bon Accord Road
IUCN IaNature Reserve
0.10 km² overlap
Tenterden
IUCN IaNature Reserve
0.10 km² overlap
Takenup Road
IUCN IaNature Reserve
0.10 km² overlap
West Mount Mason
IUCN IaNature Reserve
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 845 distinct species · 195 038 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Kalgan River : 27 espèces reliées par 39 interactions GloBI sur 3 types (connectance 5.5%, 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°
15,3°C
Annual rain
644mm
Moisture idx (CMI)
-0,45
Runoff
203mm/an
PET
1 173mm
AET
547mm
Mean slope
2,1°
Water table
409cm
Forest
26%
Crops
19%
Urban
0%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)