Ontologia

HydroBASINS lev08 watershed · #1081622270

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 2 administrative regions : Fezile Dabi, Thabo Mofutsanyane

Pfafstetter: 12796090

Sub-basin area

1 440,2km²

Upstream area

1 440,3km²

Discharge

0,78m³/s

Mean elev.

1 585m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sand River622 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

503 distinct species · 23 115 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

23 115 obs · 33 cellules
Obs. / cellule
≥ 5 016
1 381–5 015
799–1 380
344–798
< 344

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

Ecological tissue

Sample of 18 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 : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 11 interactions GloBI sur 3 types (connectance 7.2%, filtre Serrano α=0.2).

Espèces affichées
18
Interactions affichées
11
Connectance
0.072
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°

15,0°C

Annual rain

686mm

Moisture idx (CMI)

-0,53

Runoff

20mm/an

PET

1 463mm

AET

581mm

Mean slope

2,9°

Water table

471cm

Forest

0%

Crops

63%

Urban

0%

Protected

0%

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