Ontologia

Commune · SLE

Dama

Sierra Leone

AmTropical, monsoon(100 %)

Species observed

158

Observations

375

Area

473,6km²

Ecological tissue

Sample of 19 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 Dama : 14 espèces reliées par 26 interactions GloBI sur 3 types (connectance 13.7%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
26
Connectance
0.137
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

158 distinct species · 375 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

375 obs · 8 cellules
Obs. / cellule
≥ 186
186–185
41–185
23–40
< 23

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

Climate

Mean T°

25,2°C

Annual rain

2 548mm

Warmest m°

33,6°C

Coldest m°

21,4°C

Elevation: 157 m on average (min 115 m, max 245 m)

Bioclimatic detailsExpert
Annual mean temp.
25,2°C
Annual rain
2 548mm
Warmest month
33,6°C
Coldest month
21,4°C
Mean alt.
157m
Min
115m
Max
245m
Std. dev.
23m
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

5,1

Org. C

31,0g/kg

Clay

27,3%

Sand

52,8%

Silt

19,9%

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

Dominant lithology: mtGLiMaggregated to Kenema

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
45,6g/kg
Clay
25,8%
Sand
54,5%
Silt
19,8%
5–15 cm
pH H₂O
5,1
Org. C
29,2g/kg
Clay
27,3%
Sand
52,4%
Silt
20,3%
15–30 cm
pH H₂O
5,1
Org. C
18,1g/kg
Clay
28,7%
Sand
51,5%
Silt
19,8%

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

Land cover

Forest57.0%
Crops0.5%
Built-up0.2%
Bare soil0.0%
Other (grassland, water…)42.3%

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

Hydrology3 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

50,2km

Basins crossed

3

Max stream order

6

Max drainage

19 650km²

Discharge in basins

166,5m³/s

Mean precip.

3 022mm/an

Mean T°

26,2°C

Moisture idx

0,45

Mean runoff

1 615mm/an

Mean elev. (basins)

120m

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

19,4%

Pesticides

12,8kg/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