Ontologia

HydroBASINS lev08 watershed · #1081452050

Bassin de Nyanyana 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 : Kariba, Kariba Urban

417% lakePfafstetter: 12272203

Sub-basin area

196,4km²

Upstream area

3 651,2km²

Discharge

8,6m³/s

Mean elev.

563m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sanyati69 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Lake Kariba

    IUCN V

    Recreation Park

    84.94 km² overlap

  • Hurungwe

    IUCN VI

    Safari Area

    68.33 km² overlap

  • Charara

    IUCN VI

    Safari Area

    27.44 km² overlap

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

Species present

602 distinct species · 3 522 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 522 obs · 12 cellules
Obs. / cellule
≥ 1 147
1 019–1 146
118–1 018
87–117
< 87

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

Ecological tissue

Sample of 15 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 Nyanyana River : 14 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 1 bulle famille, 12 interactions GloBI documentées sur 3 types (connectance 11.4%, filtre Serrano α=0.2). Les 1 bulle regroupe des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
15
Interactions affichées
12
Connectance
0.114
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°

24,5°C

Annual rain

746mm

Moisture idx (CMI)

-0,59

Runoff

88mm/an

PET

1 803mm

AET

629mm

Mean slope

3,0°

Water table

243cm

Forest

0%

Crops

6%

Urban

0%

Protected

92%

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