Ontologia

District · GMB

Niamina West

Gambia

BShArid, steppe, hot(100 %)

Species observed

237

Observations

3 862

Area

135,9km²

Ecological tissue

Sample of 24 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 Niamina West : 17 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 3 types (connectance 9.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
29
Connectance
0.097
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

237 distinct species · 3 862 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 862 obs · 4 cellules
Obs. / cellule
≥ 3 400
3 400–3 399
236–3 399
236–235
< 236

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

Climate

Mean T°

28,1°C

Annual rain

804mm

Warmest m°

37,5°C

Coldest m°

18,5°C

Elevation: 15 m on average (min 1 m, max 39 m)

Bioclimatic detailsExpert
Annual mean temp.
28,1°C
Annual rain
804mm
Warmest month
37,5°C
Coldest month
18,5°C
Mean alt.
15m
Min
1m
Max
39m
Std. dev.
12m
Köppen-Geiger (dominant)
BShArid, steppe, hot(100 %)Arid

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

Soil & lithology

pH H₂O

5,7

Org. C

17,0g/kg

Clay

19,6%

Sand

62,8%

Silt

17,6%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
18,1g/kg
Clay
18,4%
Sand
64,0%
Silt
17,6%
5–15 cm
pH H₂O
5,7
Org. C
14,5g/kg
Clay
19,1%
Sand
63,2%
Silt
17,8%
15–30 cm
pH H₂O
5,7
Org. C
18,3g/kg
Clay
21,3%
Sand
61,2%
Silt
17,5%

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

Land cover

Forest10.7%
Crops25.0%
Built-up0.2%
Bare soil1.8%
Other (grassland, water…)62.3%

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

Hydrology3 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

11,7km

Basins crossed

3

Max stream order

3

Max drainage

68 567km²

Discharge in basins

16,4m³/s

Mean precip.

722mm/an

Mean T°

27,6°C

Moisture idx

-0,65

Mean runoff

55mm/an

Mean elev. (basins)

27m

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

Human pressure

Pop. density

0hab/km²

Built-up

21,1%

Pesticides

21,1kg/km²

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

Protected areas1

IUCN VI · 1

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