Ontologia

Province · sle

Northern

Sierra Leone

AmTropical, monsoon(59 %)

Species observed

2 895

Observations

19 608

Area

36 007,7km²

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 Northern : 29 espèces reliées par 26 interactions GloBI sur 3 types (connectance 5.2%, filtre Serrano α=0.2). 3 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

2 895 distinct species · 19 608 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

19 608 obs · 598 cellules
Obs. / cellule
≥ 617
63–616
13–62
4–12
< 4

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

Climate

Mean T°

25,9°C

Annual rain

2 445mm

Warmest m°

34,9°C

Coldest m°

20,5°C

Elevation: 228 m on average (min -6 m, max 1 578 m)

Bioclimatic detailsExpert
Annual mean temp.
25,9°C
Annual rain
2 445mm
Warmest month
34,9°C
Coldest month
20,5°C
Mean alt.
228m
Min
-6m
Max
1 578m
Std. dev.
201m
Köppen-Geiger (dominant)
AmTropical, monsoon(59 %)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

30,3g/kg

Clay

28,7%

Sand

44,8%

Silt

26,5%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
39,3g/kg
Clay
26,8%
Sand
46,6%
Silt
26,6%
5–15 cm
pH H₂O
5,3
Org. C
31,7g/kg
Clay
28,2%
Sand
44,7%
Silt
27,1%
15–30 cm
pH H₂O
5,3
Org. C
19,8g/kg
Clay
31,2%
Sand
43,0%
Silt
25,8%

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

Land cover

Forest42.6%
Crops2.3%
Built-up0.2%
Bare soil0.1%
Other (grassland, water…)54.8%

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

Hydrology69 basins · 7 lakes · 75 rivers

Hydrology metrics for this exact territory

Stream length here

4 532,4km

Lake surface here

1,51km²

Basins crossed

69

Max stream order

6

Max drainage

18 627km²

Discharge in basins

6 151,4m³/s

Mean precip.

2 577mm/an

Mean T°

26,1°C

Moisture idx

0,29

Mean runoff

1 710mm/an

Mean elev. (basins)

234m

Watersheds crossing here

60 more basins

Lakes (7, top by area)

Rivers / streams (75, ord ≥ 4)

63 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

18,2%

Pesticides

13,4kg/km²

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

Protected areas22

IUCN Not Reported · 17IUCN II · 3IUCN IV · 1IUCN VI · 1🌊 Marine · 2

Outamba

IUCN II

National Park · 1995

735 km²

Kilimi

IUCN Not Reported

National Park · 1995

412 km²

Tonkoli

IUCN Not Reported

Forest Reserve · 1926

412 km²

Complete list

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

Sub-administrations5