Ontologia

HydroBASINS lev08 watershed · #1081136610

Bassin de Nzoia 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 18 administrative regions across 2 countries : Bumula, Kabuchai, Kanduyi, Kimilili, Kween +12

Pfafstetter: 17297270

Sub-basin area

1 974,4km²

Upstream area

10 235km²

Discharge

122,57m³/s

Mean elev.

1 669m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nzoia River1307 km²

▲ Receives from 2 basins

18 dept-equivalent regions (GADM L2)

10 more

6 intersecting protected areas

  • Mount Elgon

    IUCN Not Reported

    Forest Reserve

    179.88 km² overlap

  • Chepkitale

    IUCN Not Reported

    National Reserve

    55.13 km² overlap

  • Malaba

    IUCN Not Reported

    Forest Reserve

    6.82 km² overlap

  • Taressia

    IUCN Not Reported

    Forest Reserve

    1.45 km² overlap

  • Mount Elgon

    IUCN II

    National Park

    0.00 km² overlap

  • Mount Elgon

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    0.00 km² overlap

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

Species present

719 distinct species · 5 906 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 906 obs · 50 cellules
Obs. / cellule
≥ 2 207
214–2 206
85–213
46–84
< 46

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

Ecological tissue

Sample of 32 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 Nzoia River : 29 espèces + 3 bulles famille, 28 interactions GloBI documentées sur 3 types (connectance 5.6%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
32
Interactions affichées
28
Connectance
0.057
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°

19,6°C

Annual rain

1 681mm

Moisture idx (CMI)

-0,06

Runoff

416mm/an

PET

1 797mm

AET

1 386mm

Mean slope

3,8°

Water table

203cm

Forest

6%

Crops

17%

Urban

27%

Protected

10%

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