Ontologia

Department · MRT

Aleg

Mauritania

BWhArid, desert, hot(100 %)

Species observed

292

Observations

2 380

Area

16 315,3km²

Ecological tissue

Sample of 22 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 Aleg : 19 espèces + 3 bulles famille, 21 interactions GloBI documentées sur 2 types (connectance 9.1%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
22
Interactions affichées
21
Connectance
0.091
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

292 distinct species · 2 380 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 380 obs · 127 cellules
Obs. / cellule
≥ 228
37–227
8–36
2–7
< 2

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

Climate

Mean T°

30,2°C

Annual rain

209mm

Warmest m°

40,9°C

Coldest m°

16,5°C

Elevation: 60 m on average (min 9 m, max 127 m)

Bioclimatic detailsExpert
Annual mean temp.
30,2°C
Annual rain
209mm
Warmest month
40,9°C
Coldest month
16,5°C
Mean alt.
60m
Min
9m
Max
127m
Std. dev.
22m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)Arid

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

Soil & lithology

pH H₂O

7,3

Org. C

3,7g/kg

Clay

22,5%

Sand

61,2%

Silt

16,4%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,3
Org. C
4,7g/kg
Clay
22,1%
Sand
61,0%
Silt
16,9%
5–15 cm
pH H₂O
7,3
Org. C
3,5g/kg
Clay
22,2%
Sand
61,5%
Silt
16,4%
15–30 cm
pH H₂O
7,3
Org. C
2,9g/kg
Clay
23,2%
Sand
61,0%
Silt
15,8%

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

Land cover

Forest0.9%
Crops1.0%
Built-up0.0%
Bare soil49.4%
Other (grassland, water…)48.7%

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

Hydrology34 basins · 2 lakes · 17 rivers

Hydrology metrics for this exact territory

Stream length here

243,4km

Lake surface here

3,79km²

Basins crossed

34

Max stream order

5

Max drainage

377 108km²

Discharge in basins

147,1m³/s

Mean precip.

203mm/an

Mean T°

29,2°C

Moisture idx

-0,91

Mean runoff

60mm/an

Mean elev. (basins)

61m

Watersheds crossing here

25 more basins

Lakes (2, top by area)

Rivers / streams (17, ord ≥ 4)

5 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

3,8%

Pesticides

0,1kg/km²

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