Ontologia

HydroBASINS lev08 watershed · #1081593710

Bassin de Dwarsspruit

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 : Bojanala

2% lakePfafstetter: 12499088

Sub-basin area

1 352,2km²

Upstream area

1 352,2km²

Discharge

0,65m³/s

Mean elev.

1 310m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Elands River1 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

1 659 distinct species · 39 838 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

39 838 obs · 31 cellules
Obs. / cellule
≥ 19 104
1 962–19 103
1 146–1 961
461–1 145
< 461

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

Ecological tissue

Sample of 23 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 Dwarsspruit : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 25 interactions GloBI sur 3 types (connectance 9.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
25
Connectance
0.091
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°

17,8°C

Annual rain

670mm

Moisture idx (CMI)

-0,58

Runoff

16mm/an

PET

1 590mm

AET

567mm

Mean slope

3,1°

Water table

694cm

Forest

49%

Crops

24%

Urban

0%

Protected

2%

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