Boulal
IUCN Not ReportedNot Reported
115 km²
Subdivision · SEN
Thiamene Djolof
Senegal
BWhArid, desert, hot(51 %)
Species observed
270
Observations
10 247
Area
537,5km²
Ecological tissue
Sample of 13 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 Thiamene Djolof : 12 espèces reliées par 10 interactions GloBI sur 2 types (connectance 12.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
13
Interactions affichées
10
Connectance
0.128
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
270 distinct species · 10 247 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
28,2°C
Annual rain
393mm
Warmest m°
39,0°C
Coldest m°
17,1°C
Elevation: 40 m on average (min 27 m, max 51 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
28,2°C
Annual rain
393mm
Warmest month
39,0°C
Coldest month
17,1°C
Mean alt.
40m
Min
27m
Max
51m
Std. dev.
5m
Köppen-Geiger (dominant)
BWhArid, desert, hot(51 %)Arid
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,4
Org. C
4,6g/kg
Clay
13,3%
Sand
73,8%
Silt
12,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Linguère
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,5
Org. C
5,8g/kg
Clay
12,9%
Sand
74,2%
Silt
12,9%
5–15 cm
pH H₂O
6,4
Org. C
4,4g/kg
Clay
12,3%
Sand
74,7%
Silt
13,0%
15–30 cm
pH H₂O
6,3
Org. C
3,6g/kg
Clay
14,7%
Sand
72,5%
Silt
12,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest4.6%
Crops27.0%
Built-up0.5%
Bare soil0.4%
Other (grassland, water…)67.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology8 basins · 0 lakes · 0 rivers
Hydrology metrics for this exact territory
Basins crossed
8
Max drainage
3 037km²
Discharge in basins
0,1m³/s
Mean precip.
416mm/an
Mean T°
27,3°C
Moisture idx
-0,80
Mean runoff
3mm/an
Mean elev. (basins)
46m
Watersheds crossing here
- Basin #09530sub-area297,8 km²overlap227.21 km²42%
- Basin #09730sub-area924 km²overlap135.02 km²25%
- Basin #09370sub-area370,7 km²overlap55.49 km²10%
- Basin #00120sub-area667 km²overlap42.27 km²8%
- Bassin de Ferlosub-area258,8 km²overlap35.36 km²7%
- Basin #14440sub-area654,9 km²overlap32.56 km²6%
- Basin #14060sub-area121,8 km²overlap8.56 km²2%
- Basin #09380sub-area1 km²overlap1.03 km²0%
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,1nW
Built-up
48,4%
Pesticides
1,0kg/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