HydroBASINS lev08 watershed · #1081187870
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 1 administrative regions : Garsen
Sub-basin area
5,8km²
Upstream area
63 101,2km²
Discharge
213,5m³/s
Mean elev.
34m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tana River439 km²
- Bassin de Tana River324 km²
1 dept-equivalent regions (GADM L2)
- 5.8 km²100.0% of basin
1 intersecting protected areas
Tana River Primate
IUCN IINational Reserve
0.61 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
398 distinct species · 1 140 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 21 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 : 20 espèces reliées par 18 interactions GloBI sur 2 types (connectance 7.8%, filtre Serrano α=0.2). 2 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°
27,2°C
Annual rain
644mm
Moisture idx (CMI)
-0,62
Runoff
53mm/an
PET
1 716mm
AET
543mm
Mean slope
0,2°
Water table
22cm
Forest
89%
Crops
9%
Urban
0%
Protected
62%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)