Ontologia

District · SLE

Tonkolili

Sierra Leone

AmTropical, monsoon(100 %)

Species observed

1 036

Observations

4 216

Area

6 362,9km²

Ecological tissue

Sample of 35 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 Tonkolili : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 3 types (connectance 4.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
27
Connectance
0.045
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

1 036 distinct species · 4 216 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 216 obs · 120 cellules
Obs. / cellule
≥ 356
93–355
21–92
6–20
< 6

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

Climate

Mean T°

25,5°C

Annual rain

2 750mm

Warmest m°

34,5°C

Coldest m°

20,6°C

Elevation: 215 m on average (min 33 m, max 773 m)

Bioclimatic detailsExpert
Annual mean temp.
25,5°C
Annual rain
2 750mm
Warmest month
34,5°C
Coldest month
20,6°C
Mean alt.
215m
Min
33m
Max
773m
Std. dev.
160m
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

5,3

Org. C

31,2g/kg

Clay

28,3%

Sand

48,2%

Silt

23,5%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
40,9g/kg
Clay
26,4%
Sand
50,1%
Silt
23,5%
5–15 cm
pH H₂O
5,3
Org. C
32,9g/kg
Clay
28,5%
Sand
47,5%
Silt
24,0%
15–30 cm
pH H₂O
5,3
Org. C
19,7g/kg
Clay
30,1%
Sand
47,0%
Silt
22,9%

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

Land cover

Forest41.7%
Crops2.3%
Built-up0.2%
Bare soil0.2%
Other (grassland, water…)55.6%

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

Hydrology13 basins · 1 lakes · 21 rivers

Hydrology metrics for this exact territory

Stream length here

921,0km

Lake surface here

0,24km²

Basins crossed

13

Max stream order

5

Max drainage

7 515km²

Discharge in basins

764,9m³/s

Mean precip.

2 869mm/an

Mean T°

25,9°C

Moisture idx

0,40

Mean runoff

1 876mm/an

Mean elev. (basins)

223m

Watersheds crossing here

4 more basins

Lakes (1, top by area)

Rivers / streams (21, ord ≥ 4)

9 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

17,2%

Pesticides

13,4kg/km²

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

Protected areas6

IUCN Not Reported · 5IUCN VI · 1

Tonkoli

IUCN Not Reported

Forest Reserve · 1926

412 km²

Farangbaia

IUCN Not Reported

Forest Reserve · 1948

230 km²

Kasewe

IUCN Not Reported

Forest Reserve · 1914

45 km²

Malal Hills

IUCN Not Reported

Forest Reserve · 1927

8 km²

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

Sub-administrations11