Ontologia

HydroBASINS lev08 watershed · #1081199000

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

Endorheic 539% lakePfafstetter: 11520521

Sub-basin area

317,1km²

Upstream area

3 815km²

Discharge

6,21m³/s

Mean elev.

770m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #10800410201334 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

  • Ngorongoro
    Arusha · Tanzania
    315.7 km²
    100.0% of basin

3 intersecting protected areas

  • Lake Natron Basin

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    291.35 km² overlap

  • Lake Natron GCA

    IUCN Not Reported

    Game controlled area

    265.03 km² overlap

  • Loliondo GCA

    IUCN Not Reported

    Game controlled area

    50.69 km² overlap

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

Species present

112 distinct species · 212 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

212 obs · 10 cellules
Obs. / cellule
≥ 58
58–57
47–57
7–46
< 7

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

Ecological tissue

Sample of 38 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 : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 2 types (connectance 5.8%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
41
Connectance
0.058
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°

24,2°C

Annual rain

467mm

Moisture idx (CMI)

-0,75

Runoff

71mm/an

PET

1 846mm

AET

392mm

Mean slope

2,1°

Water table

286cm

Forest

0%

Crops

4%

Urban

0%

Protected

0%

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