Ontologia

HydroBASINS lev08 watershed · #1081633740

Bassin de Buffels

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: 12608050

Sub-basin area

993,1km²

Upstream area

6 045,7km²

Discharge

3,43m³/s

Mean elev.

652m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Buffels642 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 995 distinct species · 14 346 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 346 obs · 31 cellules
Obs. / cellule
≥ 7 095
932–7 094
265–931
150–264
< 150

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 Buffels : 23 espèces reliées par 28 interactions GloBI sur 4 types (connectance 6.9%, filtre Serrano α=0.2). 6 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°

17,0°C

Annual rain

159mm

Moisture idx (CMI)

-0,89

Runoff

11mm/an

PET

1 439mm

AET

136mm

Mean slope

8,7°

Water table

1 035cm

Forest

0%

Crops

1%

Urban

1%

Protected

5%

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