Ontologia

Subdivision · SEN

Sagna

Senegal

BShArid, steppe, hot(100 %)

Species observed

112

Observations

510

Area

630,6km²

Ecological tissue

Sample of 25 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 Sagna : 18 espèces reliées par 29 interactions GloBI sur 3 types (connectance 9.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
29
Connectance
0.097
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

112 distinct species · 510 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

510 obs · 12 cellules
Obs. / cellule
≥ 180
96–179
33–95
27–32
< 27

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

662mm

Warmest m°

37,7°C

Coldest m°

18,1°C

Elevation: 37 m on average (min 18 m, max 46 m)

Bioclimatic detailsExpert
Annual mean temp.
28,1°C
Annual rain
662mm
Warmest month
37,7°C
Coldest month
18,1°C
Mean alt.
37m
Min
18m
Max
46m
Std. dev.
6m
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

6,2

Org. C

6,4g/kg

Clay

15,2%

Sand

67,2%

Silt

17,6%

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

Dominant lithology: ssGLiMaggregated to Malème Hodar

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
6,8g/kg
Clay
13,3%
Sand
68,8%
Silt
17,9%
5–15 cm
pH H₂O
6,1
Org. C
6,0g/kg
Clay
13,7%
Sand
68,4%
Silt
18,0%
15–30 cm
pH H₂O
6,0
Org. C
6,4g/kg
Clay
18,7%
Sand
64,4%
Silt
16,9%

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

Land cover

Forest3.7%
Crops49.3%
Built-up0.3%
Bare soil0.6%
Other (grassland, water…)46.1%

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

Hydrology5 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

8,4km

Basins crossed

5

Max stream order

3

Max drainage

9 459km²

Discharge in basins

1,7m³/s

Mean precip.

624mm/an

Mean T°

27,3°C

Moisture idx

-0,70

Mean runoff

27mm/an

Mean elev. (basins)

40m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

29,3%

Pesticides

2,4kg/km²

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

Protected areas3

IUCN Not Reported · 3

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