Ontologia

Region · mrt

Hodh ech Chargui

Mauritania

BWhArid, desert, hot(100 %)

Species observed

486

Observations

9 710

Area

186 860,2km²

Ecological tissue

Sample of 8 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 Hodh ech Chargui : 8 espèces + 0 bulles famille, 4 interactions GloBI documentées sur 2 types (connectance 14.3%, filtre Serrano α=0.2).

Espèces affichées
8
Interactions affichées
4
Connectance
0.143
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

486 distinct species · 9 710 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 710 obs · 139 cellules
Obs. / cellule
≥ 991
166–990
22–165
9–21
< 9

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

28,0°C

Annual rain

125mm

Warmest m°

41,0°C

Coldest m°

12,0°C

Elevation: 292 m on average (min 121 m, max 411 m)

Bioclimatic detailsExpert
Annual mean temp.
28,0°C
Annual rain
125mm
Warmest month
41,0°C
Coldest month
12,0°C
Mean alt.
292m
Min
121m
Max
411m
Std. dev.
47m
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

7,7

Org. C

4,2g/kg

Clay

23,8%

Sand

58,0%

Silt

18,3%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,7
Org. C
5,1g/kg
Clay
23,5%
Sand
58,2%
Silt
18,3%
5–15 cm
pH H₂O
7,8
Org. C
3,9g/kg
Clay
23,7%
Sand
58,0%
Silt
18,3%
15–30 cm
pH H₂O
7,7
Org. C
3,5g/kg
Clay
24,1%
Sand
57,8%
Silt
18,2%

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

Land cover

Forest0.4%
Crops4.7%
Built-up0.0%
Bare soil71.5%
Other (grassland, water…)23.4%

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

Hydrology323 basins · 3 lakes · 12 rivers

Hydrology metrics for this exact territory

Stream length here

250,6km

Lake surface here

1,19km²

Basins crossed

323

Max stream order

4

Max drainage

42 231km²

Discharge in basins

223,9m³/s

Mean precip.

120mm/an

Mean T°

29,1°C

Moisture idx

-0,94

Mean runoff

11mm/an

Mean elev. (basins)

296m

Watersheds crossing here

314 more basins

Lakes (3, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

1,1%

Pesticides

0,1kg/km²

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

Sub-administrations6