Ontologia

HydroBASINS lev08 watershed · #1081435790

Bassin de Curoca

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 : Tombwa, Virei

Pfafstetter: 13132030

Sub-basin area

1 896,7km²

Upstream area

17 722,6km²

Discharge

17,97m³/s

Mean elev.

268m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Curoca213 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

  • Virei
    Namibe · Angola
    1106.1 km²
    58.5% of basin
  • Tombwa
    Namibe · Angola
    784.0 km²
    41.5% of basin

2 intersecting protected areas

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

Species present

237 distinct species · 463 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

463 obs · 25 cellules
Obs. / cellule
≥ 111
67–110
14–66
7–13
< 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 41 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 Curoca : 29 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 5 types (connectance 5.4%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
51
Connectance
0.054
Patrimoniales
3
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°

20,7°C

Annual rain

86mm

Moisture idx (CMI)

-0,94

Runoff

14mm/an

PET

1 342mm

AET

75mm

Mean slope

1,9°

Water table

817cm

Forest

0%

Crops

0%

Urban

0%

Protected

49%

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