Ontologia

HydroBASINS lev08 watershed · #1081141280

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 12 administrative regions : Alego Usonga, Budalangi, Butere, Butula, Funyula +7

Pfafstetter: 17297250

Sub-basin area

1 307,1km²

Upstream area

12 736,2km²

Discharge

158,99m³/s

Mean elev.

1 278m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nzoia River412 km²

▲ Receives from 2 basins

12 dept-equivalent regions (GADM L2)

4 more

4 intersecting protected areas

  • Mumbaka

    IUCN Not Reported

    Forest Reserve

    1.49 km² overlap

  • Wanga

    IUCN Not Reported

    Forest Reserve

    0.95 km² overlap

  • Nanyungu

    IUCN Not Reported

    Forest Reserve

    0.22 km² overlap

  • Namuluku

    IUCN Not Reported

    Forest Reserve

    0.10 km² overlap

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

Species present

790 distinct species · 7 342 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 342 obs · 32 cellules
Obs. / cellule
≥ 1 898
409–1 897
289–408
108–288
< 108

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

Ecological tissue

Sample of 16 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 : 13 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 3 types (connectance 9.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
16
Interactions affichées
11
Connectance
0.092
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°

21,9°C

Annual rain

1 636mm

Moisture idx (CMI)

-0,09

Runoff

411mm/an

PET

1 796mm

AET

1 347mm

Mean slope

2,3°

Water table

169cm

Forest

8%

Crops

52%

Urban

24%

Protected

0%

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