Ontologia

HydroBASINS lev08 watershed · #1081638580

Bassin de Seekoei 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

2% lakePfafstetter: 12780210

Sub-basin area

1 863,5km²

Upstream area

9 029,2km²

Discharge

1,39m³/s

Mean elev.

1 349m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Orange River149 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

504 distinct species · 6 815 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 815 obs · 47 cellules
Obs. / cellule
≥ 1 127
341–1 126
165–340
60–164
< 60

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

Ecological tissue

Sample of 19 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 Seekoei River : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 2 types (connectance 9.4%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
19
Interactions affichées
16
Connectance
0.094
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°

14,6°C

Annual rain

361mm

Moisture idx (CMI)

-0,76

Runoff

4mm/an

PET

1 487mm

AET

306mm

Mean slope

2,5°

Water table

578cm

Forest

0%

Crops

0%

Urban

0%

Protected

3%

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