HydroBASINS lev08 watershed · #5080205450
Bassin de Markham 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 5 administrative regions : Bulolo, Huon, Kabwum, Markham, Nawae
Sub-basin area
1 512,3km²
Upstream area
11 620,1km²
Discharge
308,61m³/s
Mean elev.
725m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Watut River1697 km²
- Bassin de Leron River145 km²
5 dept-equivalent regions (GADM L2)
- 752.5 km²50.0% of basin
- 559.3 km²37.1% of basin
- 136.9 km²9.1% of basin
- 49.9 km²3.3% of basin
- 7.3 km²0.5% of basin
1 intersecting protected areas
YUS
IUCN VIConservation Area
2.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
553 distinct species · 1 452 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 Markham River : 24 espèces reliées par 29 interactions GloBI sur 4 types (connectance 6.2%, filtre Serrano α=0.2). 7 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°
23,4°C
Annual rain
1 925mm
Moisture idx (CMI)
0,14
Runoff
1 058mm/an
PET
1 603mm
AET
1 408mm
Mean slope
13,1°
Water table
429cm
Forest
40%
Crops
5%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)