Ontologia

HydroBASINS lev08 watershed · #1081190870

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 3 administrative regions : Galole, Garsen, Kitui South

Pfafstetter: 11720410

Sub-basin area

2 616,4km²

Upstream area

12 933,1km²

Discharge

34,65m³/s

Mean elev.

187m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tana River255 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Kokani

    IUCN Not Reported

    Forest Reserve

    433.32 km² overlap

  • South Kitui

    IUCN VI

    National Reserve

    258.94 km² overlap

  • Mwiina

    IUCN Not Reported

    Forest Reserve

    12.48 km² overlap

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

Species present

97 distinct species · 134 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

134 obs · 9 cellules
Obs. / cellule
≥ 46
46–45
27–45
5–26
< 5

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

Ecological tissue

Sample of 11 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 : 10 espèces reliées par 6 interactions GloBI sur 3 types (connectance 10.9%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
11
Interactions affichées
6
Connectance
0.109
Patrimoniales
0
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°

26,4°C

Annual rain

621mm

Moisture idx (CMI)

-0,66

Runoff

34mm/an

PET

1 816mm

AET

523mm

Mean slope

0,0°

Water table

11cm

Forest

0%

Crops

10%

Urban

0%

Protected

9%

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