Ontologia

HydroBASINS lev08 watershed · #1081560390

Bassin de Sand River

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 : Vhembe

Pfafstetter: 12450640

Sub-basin area

744,2km²

Upstream area

744,2km²

Discharge

1,78m³/s

Mean elev.

986m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sand River1243 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

2 670 distinct species · 20 107 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

20 107 obs · 17 cellules
Obs. / cellule
≥ 7 609
3 464–7 608
1 309–3 463
122–1 308
< 122

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

Ecological tissue

Sample of 14 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 Sand River : 14 espèces reliées par 10 interactions GloBI sur 3 types (connectance 11.0%, filtre Serrano α=0.2).

Espèces affichées
14
Interactions affichées
10
Connectance
0.110
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°

18,8°C

Annual rain

726mm

Moisture idx (CMI)

-0,51

Runoff

82mm/an

PET

1 501mm

AET

610mm

Mean slope

3,0°

Water table

578cm

Forest

55%

Crops

12%

Urban

10%

Protected

11%

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