HydroBASINS lev08 watershed · #5080508900
Bassin de Irwin 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 3 administrative regions : Geraldton-Greenough, Irwin, Mullewa
Sub-basin area
742,3km²
Upstream area
742,3km²
Discharge
1,58m³/s
Mean elev.
202m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 359.0 km²48.4% of basin
- 240.8 km²32.5% of basin
- 141.4 km²19.1% of basin
1 intersecting protected areas
Burma Road
IUCN IaNature Reserve
41.90 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
756 distinct species · 2 569 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Irwin River : 14 espèces reliées par 16 interactions GloBI sur 2 types (connectance 10.5%, filtre Serrano α=0.2). 4 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°
19,5°C
Annual rain
458mm
Moisture idx (CMI)
-0,71
Runoff
66mm/an
PET
1 589mm
AET
387mm
Mean slope
1,1°
Water table
635cm
Forest
2%
Crops
86%
Urban
0%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)