Ontologia

HydroBASINS lev08 watershed · #1081196950

Bassin de Tiva

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 : Garsen, Kitui Rural, Kitui South

Pfafstetter: 11720470

Sub-basin area

2 667km²

Upstream area

5 525,5km²

Discharge

23,09m³/s

Mean elev.

605m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #1081193150671 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Tsavo East

    IUCN II

    National Park

    1560.25 km² overlap

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

Species present

620 distinct species · 2 768 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 768 obs · 54 cellules
Obs. / cellule
≥ 701
122–700
37–121
11–36
< 11

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

Ecological tissue

Sample of 28 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 Tiva : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 23 interactions GloBI sur 5 types (connectance 6.1%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
23
Connectance
0.061
Patrimoniales
1
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°

24,6°C

Annual rain

665mm

Moisture idx (CMI)

-0,64

Runoff

89mm/an

PET

1 828mm

AET

560mm

Mean slope

1,6°

Water table

282cm

Forest

7%

Crops

7%

Urban

0%

Protected

100%

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