Olifantsvlei Nature Reserve
IUCN Not ReportedNature Reserve · 1957
20 km²
Subdivision · ZAF
122
South Africa
CwbTemperate, dry winter, warm summer(100 %)
Species observed
890
Observations
30 902
Area
63,5km²
Ecological tissue
Sample of 32 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 122 : 28 espèces reliées par 26 interactions GloBI sur 4 types (connectance 5.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
32
Interactions affichées
26
Connectance
0.052
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
890 distinct species · 30 902 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
16,0°C
Annual rain
672mm
Warmest m°
25,2°C
Coldest m°
2,8°C
Elevation: 1 569 m on average (min 1 522 m, max 1 697 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
16,0°C
Annual rain
672mm
Warmest month
25,2°C
Coldest month
2,8°C
Mean alt.
1 569m
Min
1 522m
Max
1 697m
Std. dev.
43m
Köppen-Geiger (dominant)
CwbTemperate, dry winter, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,0
Org. C
13,5g/kg
Clay
23,9%
Sand
63,4%
Silt
12,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiMaggregated to City of Johannesburg
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
16,5g/kg
Clay
23,8%
Sand
63,1%
Silt
13,1%
5–15 cm
pH H₂O
6,1
Org. C
11,7g/kg
Clay
23,1%
Sand
64,3%
Silt
12,7%
15–30 cm
pH H₂O
6,0
Org. C
12,3g/kg
Clay
25,0%
Sand
62,7%
Silt
12,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest5.8%
Crops27.2%
Built-up4.6%
Bare soil2.9%
Other (grassland, water…)59.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 2 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
19,5km
Lake surface here
1,04km²
Basins crossed
2
Max stream order
3
Max drainage
2 261km²
Discharge in basins
0,1m³/s
Mean precip.
707mm/an
Mean T°
15,9°C
Moisture idx
-0,51
Mean runoff
37mm/an
Mean elev. (basins)
1 591m
Watersheds crossing here
Lakes (2, top by area)
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
8hab/km²
Night light
6,4nW
Built-up
461,1%
Pesticides
41,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN