Ontologia

HydroBASINS lev08 watershed · #1081222590

Bassin de Olmotoni

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 : Arusha, Arusha Urban, Monduli, Simanjiro

Pfafstetter: 11734909

Sub-basin area

452,2km²

Upstream area

452,2km²

Discharge

2,33m³/s

Mean elev.

1 475m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #108122469065 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 048 distinct species · 69 381 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

69 381 obs · 11 cellules
Obs. / cellule
≥ 63 274
2 371–63 273
1 058–2 370
392–1 057
< 392

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

Ecological tissue

Sample of 13 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 Olmotoni : 12 espèces reliées par 13 interactions GloBI sur 3 types (connectance 14.3%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
14
Interactions affichées
13
Connectance
0.143
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°

18,8°C

Annual rain

1 013mm

Moisture idx (CMI)

-0,32

Runoff

163mm/an

PET

1 519mm

AET

799mm

Mean slope

4,5°

Water table

270cm

Forest

8%

Crops

11%

Urban

23%

Protected

5%

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