Ontologia

HydroBASINS lev08 watershed · #1081651010

Bassin de Olifants 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 : West Coast

11% lakePfafstetter: 12604345

Sub-basin area

627,1km²

Upstream area

2 051,9km²

Discharge

8,78m³/s

Mean elev.

453m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Olifants River153 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

2 884 distinct species · 36 812 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

36 812 obs · 18 cellules
Obs. / cellule
≥ 10 007
6 288–10 006
1 510–6 287
720–1 509
< 720

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

Ecological tissue

Sample of 42 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 Olifants River : 34 espèces reliées par 52 interactions GloBI sur 5 types (connectance 5.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
52
Connectance
0.055
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°

17,2°C

Annual rain

336mm

Moisture idx (CMI)

-0,78

Runoff

71mm/an

PET

1 540mm

AET

285mm

Mean slope

11,4°

Water table

824cm

Forest

4%

Crops

4%

Urban

0%

Protected

17%

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