HydroBASINS lev08 watershed · #2080083590
Bassin de وادي ثماء
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 1 administrative regions : Yanbu
Sub-basin area
1 083,5km²
Upstream area
1 083,5km²
Discharge
0,01m³/s
Mean elev.
108m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- YanbuAl Madinah · Saudi Arabia1068.5 km²98.8% of basin
1 intersecting protected areas
Protected Area
1.46 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
943 distinct species · 12 518 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 وادي ثماء : 16 espèces reliées par 34 interactions GloBI sur 2 types (connectance 17.9%, 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°
26,4°C
Annual rain
84mm
Moisture idx (CMI)
-0,95
Runoff
18mm/an
PET
1 799mm
AET
69mm
Mean slope
2,6°
Water table
217cm
Forest
0%
Crops
0%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)