Ontologia

District · GMB

Janjanbureh

Gambia

BShArid, steppe, hot(100 %)

Species observed

548

Observations

24 649

Area

12,4km²

Ecological tissue

Sample of 16 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 Janjanbureh : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 3 types (connectance 12.5%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
17
Interactions affichées
17
Connectance
0.125
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

548 distinct species · 24 649 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

24 649 obs · 1 cellules
Obs. / cellule
≥ 24 649
24 649–24 648
24 649–24 648
24 649–24 648
< 24 649

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

Climate

Mean T°

28,8°C

Annual rain

790mm

Warmest m°

39,2°C

Coldest m°

19,0°C

Elevation: 3 m on average (min 2 m, max 13 m)

Bioclimatic detailsExpert
Annual mean temp.
28,8°C
Annual rain
790mm
Warmest month
39,2°C
Coldest month
19,0°C
Mean alt.
3m
Min
2m
Max
13m
Std. dev.
1m
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

5,9

Org. C

13,8g/kg

Clay

23,3%

Sand

54,6%

Silt

22,0%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
16,1g/kg
Clay
21,2%
Sand
56,3%
Silt
22,5%
5–15 cm
pH H₂O
6,0
Org. C
11,1g/kg
Clay
22,9%
Sand
55,1%
Silt
22,0%
15–30 cm
pH H₂O
5,9
Org. C
14,1g/kg
Clay
26,0%
Sand
52,4%
Silt
21,6%

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

Land cover

Forest14.3%
Crops24.4%
Built-up1.8%
Bare soil0.5%
Other (grassland, water…)59.0%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

2,2km

Basins crossed

1

Max stream order

6

Max drainage

58 906km²

Discharge in basins

1,7m³/s

Mean precip.

750mm/an

Mean T°

27,7°C

Moisture idx

-0,64

Mean runoff

54mm/an

Mean elev. (basins)

24m

Watersheds crossing here

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

Human pressure

Pop. density

3hab/km²

Night light

0,2nW

Built-up

176,4%

Pesticides

20,8kg/km²

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