Ontologia

HydroBASINS lev08 watershed · #1081383040

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 : Ganda, Longonjo, Tchindjenje, Ukuma

Pfafstetter: 13138070

Sub-basin area

1 785,1km²

Upstream area

3 835,3km²

Discharge

59,06m³/s

Mean elev.

1 590m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Catumbela98 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

  • Ganda
    Benguela · Angola
    926.9 km²
    52.1% of basin
  • Tchindjenje
    Huambo · Angola
    396.1 km²
    22.3% of basin
  • Longonjo
    Huambo · Angola
    376.5 km²
    21.2% of basin
  • Ukuma
    Huambo · Angola
    79.0 km²
    4.4% of basin

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

Species present

153 distinct species · 189 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

189 obs · 24 cellules
Obs. / cellule
≥ 47
25–46
8–24
3–7
< 3

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

Ecological tissue

Sample of 17 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 : 14 espèces reliées par 13 interactions GloBI sur 1 type (connectance 9.6%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
13
Connectance
0.096
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°

18,8°C

Annual rain

1 264mm

Moisture idx (CMI)

-0,21

Runoff

458mm/an

PET

1 592mm

AET

1 006mm

Mean slope

6,6°

Water table

439cm

Forest

90%

Crops

4%

Urban

0%

Protected

0%

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