Ontologia

Commune · ZAF

Knysna

South Africa

CfbTemperate, no dry season, warm summer(95 %)

Species observed

5 342

Observations

275 670

Area

1 097,2km²

Ecological tissue

Sample of 30 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 Knysna : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 3 types (connectance 5.1%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
22
Connectance
0.051
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

5 342 distinct species · 275 670 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

275 670 obs · 33 cellules
Obs. / cellule
≥ 84 827
16 147–84 826
5 323–16 146
1 427–5 322
< 1 427

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

Climate

Mean T°

16,1°C

Annual rain

820mm

Warmest m°

23,7°C

Coldest m°

8,7°C

Elevation: 325 m on average (min -89 m, max 1 071 m)

Bioclimatic detailsExpert
Annual mean temp.
16,1°C
Annual rain
820mm
Warmest month
23,7°C
Coldest month
8,7°C
Mean alt.
325m
Min
-89m
Max
1 071m
Std. dev.
226m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(95 %)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

41,9g/kg

Clay

16,7%

Sand

64,8%

Silt

18,5%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: ssGLiMaggregated to Eden

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
69,1g/kg
Clay
16,2%
Sand
65,2%
Silt
18,6%
5–15 cm
pH H₂O
6,0
Org. C
36,2g/kg
Clay
16,4%
Sand
65,1%
Silt
18,6%
15–30 cm
pH H₂O
6,0
Org. C
20,5g/kg
Clay
17,4%
Sand
64,2%
Silt
18,4%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest36.9%
Crops3.5%
Built-up0.5%
Bare soil1.6%
Other (grassland, water…)57.5%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology5 basins · 4 lakes · 14 rivers

Hydrology metrics for this exact territory

Stream length here

230,7km

Lake surface here

10,04km²

Basins crossed

5

Max stream order

3

Max drainage

1 827km²

Discharge in basins

2,4m³/s

Mean precip.

849mm/an

Mean T°

16,0°C

Moisture idx

-0,25

Max snow

1%

Mean runoff

130mm/an

Mean elev. (basins)

342m

Watersheds crossing here

Lakes (4, top by area)

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

49,3%

Pesticides

2,5kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas27

IUCN Not Reported · 25IUCN Not Applicable · 1IUCN II · 1🌊 Marine · 11
Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN