Ontologia

HydroBASINS lev08 watershed · #1080043280

Bassin de Tsondab

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 : Gibeon, Rehoboth Rural, Walvisbay Rural, Windhoek Rural

EndorheicPfafstetter: 12800901

Sub-basin area

4 680km²

Upstream area

4 680km²

Discharge

0,81m³/s

Mean elev.

1 203m

Administrative coverage

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Namib-Naukluft

    IUCN II

    National Park

    1846.86 km² overlap

  • Namib Sand Sea

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    1224.97 km² overlap

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

Species present

1 057 distinct species · 24 523 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

24 523 obs · 116 cellules
Obs. / cellule
≥ 2 804
597–2 803
145–596
45–144
< 45

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

Ecological tissue

Sample of 29 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 Tsondab : 22 espèces reliées par 28 interactions GloBI sur 3 types (connectance 6.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
28
Connectance
0.069
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°

17,4°C

Annual rain

146mm

Moisture idx (CMI)

-0,91

Runoff

9mm/an

PET

1 608mm

AET

123mm

Mean slope

5,4°

Water table

1 106cm

Forest

0%

Crops

0%

Urban

0%

Protected

40%

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