Ontologia

HydroBASINS lev08 watershed · #1081633600

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 2 administrative regions : Pixley ka Seme, Xhariep

Pfafstetter: 12780133

Sub-basin area

665,8km²

Upstream area

92 978,5km²

Discharge

150,45m³/s

Mean elev.

1 134m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Orange River430 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

374 distinct species · 2 200 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 200 obs · 16 cellules
Obs. / cellule
≥ 756
338–755
170–337
88–169
< 88

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

Ecological tissue

Sample of 24 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 : 21 espèces reliées par 20 interactions GloBI sur 4 types (connectance 7.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
20
Connectance
0.072
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°

17,6°C

Annual rain

346mm

Moisture idx (CMI)

-0,79

Runoff

9mm/an

PET

1 642mm

AET

292mm

Mean slope

1,0°

Water table

333cm

Forest

0%

Crops

5%

Urban

0%

Protected

0%

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