Ontologia

Commune · SLE

Freetown2

Sierra Leone

AmTropical, monsoon(100 %)

Species observed

55

Observations

80

Area

63,6km²

Ecological tissue

Sample of 9 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 Freetown2 : 7 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 7 interactions GloBI sur 2 types (connectance 19.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
9
Interactions affichées
7
Connectance
0.194
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

55 distinct species · 80 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

80 obs · 2 cellules
Obs. / cellule
≥ 58
58–57
58–57
58–57
< 58

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

Climate

Mean T°

25,6°C

Annual rain

3 791mm

Warmest m°

27,5°C

Coldest m°

23,5°C

Elevation: 152 m on average (min -6 m, max 550 m)

Bioclimatic detailsExpert
Annual mean temp.
25,6°C
Annual rain
3 791mm
Warmest month
27,5°C
Coldest month
23,5°C
Mean alt.
152m
Min
-6m
Max
550m
Std. dev.
146m
Köppen-Geiger (dominant)
AmTropical, monsoon(100 %)Tropical

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,6

Org. C

38,0g/kg

Clay

28,8%

Sand

43,0%

Silt

28,2%

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

Dominant lithology: paGLiMaggregated to Western Rural

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
46,8g/kg
Clay
26,8%
Sand
44,6%
Silt
28,6%
5–15 cm
pH H₂O
5,6
Org. C
37,6g/kg
Clay
28,0%
Sand
43,1%
Silt
29,0%
15–30 cm
pH H₂O
5,6
Org. C
29,7g/kg
Clay
31,7%
Sand
41,2%
Silt
27,0%

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

Land cover

Forest19.7%
Crops2.8%
Built-up14.5%
Bare soil0.5%
Other (grassland, water…)62.5%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

0,9km

Basins crossed

1

Max stream order

1

Max drainage

2 153km²

Discharge in basins

0,2m³/s

Mean precip.

3 264mm/an

Mean T°

25,9°C

Moisture idx

0,55

Mean runoff

2 104mm/an

Mean elev. (basins)

62m

Watersheds crossing here

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

Human pressure

Pop. density

68hab/km²

Night light

2,5nW

Built-up

1 448,9%

Pesticides

16,2kg/km²

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

Protected areas3

IUCN Not Reported · 2IUCN II · 1🌊 Marine · 2

Western Area

IUCN II

No or Non - Hunting Forest Reserve · 1916

164 km²

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