Ontologia

HydroBASINS lev08 watershed · #1081627230

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, Siyanda

Pfafstetter: 12770306

Sub-basin area

888,2km²

Upstream area

888,3km²

Discharge

0,17m³/s

Mean elev.

1 064m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Orange River119 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

454 distinct species · 5 931 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 931 obs · 20 cellules
Obs. / cellule
≥ 3 337
634–3 336
252–633
58–251
< 58

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

Ecological tissue

Sample of 21 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 : 15 espèces reliées par 28 interactions GloBI sur 3 types (connectance 12.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
28
Connectance
0.121
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°

19,0°C

Annual rain

263mm

Moisture idx (CMI)

-0,84

Runoff

3mm/an

PET

1 668mm

AET

221mm

Mean slope

1,8°

Water table

626cm

Forest

0%

Crops

0%

Urban

0%

Protected

1%

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