Ontologia

Commune · SLE

Bum

Sierra Leone

AmTropical, monsoon(100 %)

Species observed

25

Observations

36

Area

337,5km²

Ecological tissue

Sample of 2 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 Bum : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
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

25 distinct species · 36 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

36 obs · 6 cellules
Obs. / cellule
≥ 14
14–13
12–13
5–11
< 5

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

Climate

Mean T°

25,7°C

Annual rain

3 272mm

Warmest m°

31,6°C

Coldest m°

22,5°C

Elevation: 10 m on average (min 3 m, max 34 m)

Bioclimatic detailsExpert
Annual mean temp.
25,7°C
Annual rain
3 272mm
Warmest month
31,6°C
Coldest month
22,5°C
Mean alt.
10m
Min
3m
Max
34m
Std. dev.
6m
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

5,2

Org. C

35,1g/kg

Clay

29,4%

Sand

42,0%

Silt

28,7%

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

Dominant lithology: wbGLiMaggregated to Bonthe

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
43,4g/kg
Clay
27,4%
Sand
43,6%
Silt
29,0%
5–15 cm
pH H₂O
5,2
Org. C
32,3g/kg
Clay
29,3%
Sand
41,9%
Silt
28,8%
15–30 cm
pH H₂O
5,2
Org. C
29,6g/kg
Clay
31,3%
Sand
40,4%
Silt
28,3%

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

Land cover

Forest38.7%
Crops6.7%
Built-up0.2%
Bare soil0.1%
Other (grassland, water…)54.4%

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

Hydrology3 basins · 8 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

35,6km

Lake surface here

8,57km²

Basins crossed

3

Max stream order

6

Max drainage

14 013km²

Discharge in basins

125,4m³/s

Mean precip.

3 301mm/an

Mean T°

26,8°C

Moisture idx

0,52

Mean runoff

1 856mm/an

Mean elev. (basins)

27m

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

16,8%

Pesticides

11,6kg/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