Ontologia

Rivière· 91 segments

Olifantsrivier

Crosses 2 administrative regions : Cacadu, Eden

rivière

Total length

222km

Max discharge

14,8m³/s

Max Strahler

5

Segments matched

91

River geography2 admin regions · 0 communes

Parent watershed

hybas-10816585602417 km²

2 administrative regions crossed (GADM L2)

  • Eden
    Western Cape · South Africa
    349.4 km
    in this dpt
  • Cacadu
    Eastern Cape · South Africa
    0.6 km
    in this dpt

8 intersecting protected areas

1 page = 1 named river (aggregation of 91 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

151 distinct species · 718 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 34 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 Olifantsrivier : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 4 types (connectance 5.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
30
Connectance
0.053
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

222km

Max discharge

14,8m³/s

Max Strahler

5

Segments matched

91

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.