Ontologia

HydroBASINS lev08 watershed · #1081200260

Bassin de Pinyinyi

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

EndorheicPfafstetter: 11520522

Sub-basin area

170,9km²

Upstream area

170,9km²

Discharge

0,38m³/s

Mean elev.

991m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Pinyinyi317 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

  • Ngorongoro
    Arusha · Tanzania
    170.2 km²
    100.0% of basin

3 intersecting protected areas

  • Lake Natron Basin

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    132.15 km² overlap

  • Loliondo GCA

    IUCN Not Reported

    Game controlled area

    92.57 km² overlap

  • Lake Natron GCA

    IUCN Not Reported

    Game controlled area

    77.59 km² overlap

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

Species present

20 distinct species · 35 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

35 obs · 3 cellules
Obs. / cellule
≥ 18
18–17
18–17
15–17
< 15

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

Ecological tissue

Sample of 6 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 Pinyinyi : 6 espèces reliées par 4 interactions GloBI sur 2 types (connectance 26.7%, filtre Serrano α=0.2).

Espèces affichées
6
Interactions affichées
4
Connectance
0.267
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°

23,1°C

Annual rain

497mm

Moisture idx (CMI)

-0,72

Runoff

72mm/an

PET

1 777mm

AET

418mm

Mean slope

4,1°

Water table

442cm

Forest

0%

Crops

5%

Urban

0%

Protected

0%

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