Ontologia

HydroBASINS lev08 watershed · #1081424680

Bassin de Ngwerere

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 3 administrative regions : Chibombo, Chongwe, Lusaka

2% lakePfafstetter: 12250068

Sub-basin area

330,7km²

Upstream area

330,8km²

Discharge

1,16m³/s

Mean elev.

1 195m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Chongwe266 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Lusaka East

    IUCN Not Reported

    Forest Reserve

    0.11 km² overlap

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

Species present

1 421 distinct species · 44 034 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

44 034 obs · 7 cellules
Obs. / cellule
≥ 18 034
18 034–18 033
6 523–18 033
4 190–6 522
< 4 190

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

Ecological tissue

Sample of 25 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 Ngwerere : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 3 types (connectance 6.7%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
20
Connectance
0.067
Patrimoniales
2
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°

20,6°C

Annual rain

841mm

Moisture idx (CMI)

-0,48

Runoff

111mm/an

PET

1 629mm

AET

709mm

Mean slope

1,0°

Water table

148cm

Forest

15%

Crops

1%

Urban

58%

Protected

1%

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