Ontologia

HydroBASINS lev08 watershed · #1081210680

Bassin de Oldibai

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 : Itilima, Meatu, Ngorongoro

Endorheic 11% lakePfafstetter: 11520408

Sub-basin area

543,1km²

Upstream area

543,2km²

Discharge

0,68m³/s

Mean elev.

1 641m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Oldupai River922 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

611 distinct species · 31 121 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

31 121 obs · 12 cellules
Obs. / cellule
≥ 16 128
5 518–16 127
2 575–5 517
751–2 574
< 751

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

Ecological tissue

Sample of 18 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 Oldibai : 16 espèces reliées par 15 interactions GloBI sur 3 types (connectance 9.8%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
15
Connectance
0.098
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°

19,5°C

Annual rain

829mm

Moisture idx (CMI)

-0,44

Runoff

48mm/an

PET

1 491mm

AET

701mm

Mean slope

0,2°

Water table

147cm

Forest

0%

Crops

8%

Urban

0%

Protected

100%

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