Ontologia

HydroBASINS lev08 watershed · #1081149050

Bassin de Nyando 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 4 administrative regions : Aldai, Muhoroni, Nyando, Tinderet

Pfafstetter: 17297663

Sub-basin area

303,1km²

Upstream area

3 009,3km²

Discharge

43,68m³/s

Mean elev.

1 334m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nyando river454 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • South Nandi

    IUCN Not Reported

    Forest Reserve

    6.35 km² overlap

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

Species present

613 distinct species · 6 491 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 491 obs · 7 cellules
Obs. / cellule
≥ 3 591
3 591–3 590
235–3 590
138–234
< 138

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

Ecological tissue

Sample of 19 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 Nyando river : 17 espèces reliées par 19 interactions GloBI sur 2 types (connectance 11.1%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
19
Interactions affichées
19
Connectance
0.111
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°

21,8°C

Annual rain

1 360mm

Moisture idx (CMI)

-0,28

Runoff

439mm/an

PET

1 886mm

AET

1 149mm

Mean slope

2,7°

Water table

101cm

Forest

46%

Crops

26%

Urban

19%

Protected

5%

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