Ontologia

HydroBASINS lev08 watershed · #1081209390

Bassin de Oldupai 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 2 administrative regions : Itilima, Ngorongoro

Endorheic 2% lakePfafstetter: 11520407

Sub-basin area

922,1km²

Upstream area

1 968,7km²

Discharge

3,19m³/s

Mean elev.

1 660m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Oldupai River44 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

566 distinct species · 6 978 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 978 obs · 21 cellules
Obs. / cellule
≥ 2 271
722–2 270
207–721
104–206
< 104

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

Ecological tissue

Sample of 29 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 Oldupai River : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 4 types (connectance 8.5%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
37
Connectance
0.085
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°

19,2°C

Annual rain

725mm

Moisture idx (CMI)

-0,51

Runoff

55mm/an

PET

1 481mm

AET

613mm

Mean slope

0,8°

Water table

293cm

Forest

0%

Crops

7%

Urban

0%

Protected

100%

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