Ontologia

HydroBASINS lev08 watershed · #1080016780

Bassin · #1080016780

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 : Walvisbay Rural, Walvisbay Urban

Pfafstetter: 12803002

Sub-basin area

764,6km²

Upstream area

764,7km²

Discharge

0,1m³/s

Mean elev.

143m

Administrative coverage

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Namib-Naukluft

    IUCN II

    National Park

    374.96 km² overlap

  • Dorob

    IUCN Not Reported

    National Park

    298.95 km² overlap

  • Walvis Bay

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    5.97 km² overlap

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

Species present

393 distinct species · 29 842 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

29 842 obs · 18 cellules
Obs. / cellule
≥ 19 959
8 888–19 958
70–8 887
42–69
< 42

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 · #1080016780 : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 38 interactions GloBI sur 3 types (connectance 9.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
38
Connectance
0.094
Patrimoniales
1
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°

17,5°C

Annual rain

15mm

Moisture idx (CMI)

-0,99

Runoff

6mm/an

PET

1 394mm

AET

13mm

Mean slope

0,8°

Water table

910cm

Forest

0%

Crops

0%

Urban

2%

Protected

88%

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