HydroBASINS lev08 watershed · #2081008410
Bassin de وادي بنا
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 7 administrative regions : An Nadirah, Ar Radmah, As Saddah, Ash Sha'ir, Ba'dan +2
Sub-basin area
794,5km²
Upstream area
794,9km²
Discharge
3,33m³/s
Mean elev.
2 561m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 229.4 km²29.0% of basin
- 198.5 km²25.1% of basin
- An NadirahIbb · Yemen197.9 km²25.0% of basin
- 93.1 km²11.8% of basin
- Ash Sha'irIbb · Yemen36.6 km²4.6% of basin
- 28.9 km²3.7% of basin
- 7.2 km²0.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
119 distinct species · 292 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 بنا : 17 espèces reliées par 22 interactions GloBI sur 2 types (connectance 11.6%, filtre Serrano α=0.2). 3 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°
15,2°C
Annual rain
446mm
Moisture idx (CMI)
-0,71
Runoff
110mm/an
PET
1 560mm
AET
377mm
Mean slope
12,2°
Water table
776cm
Forest
0%
Crops
23%
Urban
20%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)