Ontologia

HydroBASINS lev08 watershed · #1081178790

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 : Galole, Kitui East

Pfafstetter: 11720610

Sub-basin area

1 056,6km²

Upstream area

13 397,9km²

Discharge

32,77m³/s

Mean elev.

149m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tana River451 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Hirimani

    IUCN Not Reported

    Forest Reserve

    11.53 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

189 distinct species · 269 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

269 obs · 7 cellules
Obs. / cellule
≥ 222
222–221
10–221
8–9
< 8

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 23 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Tana River : 22 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 2 types (connectance 7.1%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
18
Connectance
0.071
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

27,1°C

Annual rain

497mm

Moisture idx (CMI)

-0,74

Runoff

16mm/an

PET

1 914mm

AET

417mm

Mean slope

0,1°

Water table

31cm

Forest

0%

Crops

10%

Urban

0%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)