Ontologia

HydroBASINS lev08 watershed · #1081621340

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 : Lejweleputswa, Thabo Mofutsanyane

34% lakePfafstetter: 12796077

Sub-basin area

650,6km²

Upstream area

4 051,9km²

Discharge

1,67m³/s

Mean elev.

1 422m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sand River628 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

813 distinct species · 22 409 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 409 obs · 15 cellules
Obs. / cellule
≥ 6 363
6 028–6 362
1 408–6 027
615–1 407
< 615

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

Ecological tissue

Sample of 25 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 : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 3 types (connectance 5.7%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
17
Connectance
0.057
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°

16,0°C

Annual rain

583mm

Moisture idx (CMI)

-0,62

Runoff

14mm/an

PET

1 532mm

AET

493mm

Mean slope

1,6°

Water table

387cm

Forest

0%

Crops

75%

Urban

0%

Protected

15%

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