Ontologia

HydroBASINS lev08 watershed · #1081198880

Bassin · #1081198880

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 1 administrative regions : Ngorongoro

Endorheic 1000% lakePfafstetter: 11520530

Sub-basin area

86km²

Upstream area

11 086,5km²

Discharge

27,34m³/s

Mean elev.

602m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #10800410201334 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

  • Ngorongoro
    Arusha · Tanzania
    85.6 km²
    100.0% of basin

2 intersecting protected areas

  • Lake Natron GCA

    IUCN Not Reported

    Game controlled area

    85.61 km² overlap

  • Lake Natron Basin

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    85.61 km² overlap

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

Species present

99 distinct species · 173 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

173 obs · 1 cellules
Obs. / cellule
≥ 173
173–172
173–172
173–172
< 173

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

Ecological tissue

Sample of 28 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 · #1081198880 : 21 espèces reliées par 29 interactions GloBI sur 3 types (connectance 7.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
29
Connectance
0.077
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°

25,0°C

Annual rain

440mm

Moisture idx (CMI)

-0,77

Runoff

67mm/an

PET

1 896mm

AET

369mm

Mean slope

0,0°

Water table

8cm

Forest

0%

Crops

2%

Urban

0%

Protected

0%

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