HydroBASINS lev08 watershed · #1081198260
Bassin de Tana 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 2 administrative regions : Garsen, Magarini
Sub-basin area
324,1km²
Upstream area
7 805km²
Discharge
10,45m³/s
Mean elev.
52m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #10811984001341 km²
- Bassin · #1081198490677 km²
2 dept-equivalent regions (GADM L2)
- 209.1 km²64.8% of basin
- 113.5 km²35.2% of basin
1 intersecting protected areas
Tana River Delta Ramsar Site
IUCN VIWetland of International Importance (Ramsar Site)
37.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
77 distinct species · 150 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 Tana River : 7 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 5 interactions GloBI sur 3 types (connectance 23.8%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
26,6°C
Annual rain
720mm
Moisture idx (CMI)
-0,55
Runoff
63mm/an
PET
1 616mm
AET
609mm
Mean slope
0,5°
Water table
71cm
Forest
73%
Crops
7%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)