Ontologia

HydroBASINS lev08 watershed · #1081636120

Bassin de Buffelsrivier

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: 12608070

Sub-basin area

1 195,1km²

Upstream area

4 597,4km²

Discharge

2,72m³/s

Mean elev.

775m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Buffels993 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

1 166 distinct species · 12 025 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 025 obs · 32 cellules
Obs. / cellule
≥ 4 132
620–4 131
196–619
53–195
< 53

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 Buffelsrivier : 36 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 32 interactions GloBI sur 4 types (connectance 3.9%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
32
Connectance
0.039
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°

17,2°C

Annual rain

179mm

Moisture idx (CMI)

-0,88

Runoff

13mm/an

PET

1 496mm

AET

152mm

Mean slope

9,0°

Water table

934cm

Forest

0%

Crops

0%

Urban

0%

Protected

4%

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