Ontologia

HydroBASINS lev08 watershed · #1081635330

Bassin de Brakrivier

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 1 administrative regions : Namakwa

Pfafstetter: 12608080

Sub-basin area

1 456,1km²

Upstream area

1 456,1km²

Discharge

0,74m³/s

Mean elev.

974m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Buffelsrivier1195 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

1 088 distinct species · 11 218 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 218 obs · 42 cellules
Obs. / cellule
≥ 6 282
277–6 281
78–276
30–77
< 30

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

Ecological tissue

Sample of 33 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 Brakrivier : 30 espèces reliées par 25 interactions GloBI sur 3 types (connectance 4.7%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
25
Connectance
0.047
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

184mm

Moisture idx (CMI)

-0,88

Runoff

13mm/an

PET

1 550mm

AET

155mm

Mean slope

2,7°

Water table

897cm

Forest

0%

Crops

0%

Urban

0%

Protected

6%

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