Ontologia

HydroBASINS lev08 watershed · #1081632270

Bassin de Orange 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 : Pixley ka Seme

Pfafstetter: 12770507

Sub-basin area

1 639,2km²

Upstream area

321 604,6km²

Discharge

294,66m³/s

Mean elev.

1 105m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Orange River1383 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

1 115 distinct species · 8 695 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 695 obs · 41 cellules
Obs. / cellule
≥ 1 216
1 036–1 215
128–1 035
40–127
< 40

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

Ecological tissue

Sample of 28 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 Orange River : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 3 types (connectance 5.8%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
22
Connectance
0.058
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°

18,2°C

Annual rain

267mm

Moisture idx (CMI)

-0,84

Runoff

15mm/an

PET

1 649mm

AET

225mm

Mean slope

4,1°

Water table

838cm

Forest

0%

Crops

1%

Urban

1%

Protected

0%

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