Ontologia

HydroBASINS lev08 watershed · #1081608780

Bassin de Nossob

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 3 administrative regions across 2 countries : Gemsbok, Siyanda, Tshabong

Pfafstetter: 12745000

Sub-basin area

1 287,3km²

Upstream area

159 875,9km²

Discharge

2,62m³/s

Mean elev.

904m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Molopo33 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

626 distinct species · 14 058 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 058 obs · 25 cellules
Obs. / cellule
≥ 5 891
1 193–5 890
92–1 192
25–91
< 25

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

Ecological tissue

Sample of 26 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 Nossob : 19 espèces reliées par 29 interactions GloBI sur 3 types (connectance 8.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
29
Connectance
0.089
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°

20,0°C

Annual rain

205mm

Moisture idx (CMI)

-0,89

Runoff

3mm/an

PET

1 863mm

AET

171mm

Mean slope

0,8°

Water table

224cm

Forest

0%

Crops

0%

Urban

0%

Protected

7%

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