Ontologia

HydroBASINS lev08 watershed · #1081382300

Bassin de Catumbela

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 4 administrative regions : Balombo, Bocoio, Ganda, Tchindjenje

Pfafstetter: 13138040

Sub-basin area

750,4km²

Upstream area

750,4km²

Discharge

11,79m³/s

Mean elev.

1 565m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Catumbela2120 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

  • Ganda
    Benguela · Angola
    556.1 km²
    74.4% of basin
  • Balombo
    Benguela · Angola
    152.5 km²
    20.4% of basin
  • Tchindjenje
    Huambo · Angola
    33.5 km²
    4.5% of basin
  • Bocoio
    Benguela · Angola
    5.4 km²
    0.7% of basin

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

Species present

32 distinct species · 41 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

41 obs · 5 cellules
Obs. / cellule
≥ 16
16–15
11–15
8–10
< 8

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

Ecological tissue

Sample of 8 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 Catumbela : 6 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 10 interactions GloBI sur 1 type (connectance 35.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
8
Interactions affichées
10
Connectance
0.357
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°

19,8°C

Annual rain

1 286mm

Moisture idx (CMI)

-0,19

Runoff

478mm/an

PET

1 589mm

AET

1 031mm

Mean slope

8,2°

Water table

497cm

Forest

99%

Crops

4%

Urban

0%

Protected

0%

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