Ontologia

Region · mrt

Hodh el Gharbi

Mauritania

BWhArid, desert, hot(99 %)

Species observed

366

Observations

4 507

Area

50 277,3km²

Ecological tissue

Sample of 20 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 el Gharbi : 19 espèces + 1 bulle famille, 12 interactions GloBI documentées sur 2 types (connectance 6.3%, filtre Serrano α=0.2). Les 1 bulle regroupe des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
20
Interactions affichées
12
Connectance
0.063
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

366 distinct species · 4 507 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 507 obs · 30 cellules
Obs. / cellule
≥ 594
401–593
200–400
111–199
< 111

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

Climate

Mean T°

29,8°C

Annual rain

234mm

Warmest m°

41,1°C

Coldest m°

14,8°C

Elevation: 211 m on average (min 129 m, max 447 m)

Bioclimatic detailsExpert
Annual mean temp.
29,8°C
Annual rain
234mm
Warmest month
41,1°C
Coldest month
14,8°C
Mean alt.
211m
Min
129m
Max
447m
Std. dev.
45m
Köppen-Geiger (dominant)
BWhArid, desert, hot(99 %)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

3,9g/kg

Clay

23,9%

Sand

57,1%

Silt

19,0%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,3
Org. C
4,7g/kg
Clay
22,5%
Sand
58,0%
Silt
19,6%
5–15 cm
pH H₂O
7,3
Org. C
3,6g/kg
Clay
23,3%
Sand
57,7%
Silt
19,0%
15–30 cm
pH H₂O
7,4
Org. C
3,3g/kg
Clay
25,9%
Sand
55,7%
Silt
18,4%

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

Land cover

Forest1.3%
Crops9.6%
Built-up0.0%
Bare soil30.0%
Other (grassland, water…)59.2%

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

Hydrology100 basins · 0 lakes · 11 rivers

Hydrology metrics for this exact territory

Stream length here

442,9km

Basins crossed

100

Max stream order

6

Max drainage

78 471km²

Discharge in basins

44,7m³/s

Mean precip.

224mm/an

Mean T°

29,1°C

Moisture idx

-0,89

Mean runoff

26mm/an

Mean elev. (basins)

216m

Watersheds crossing here

91 more basins

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

3,4%

Pesticides

0,1kg/km²

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

Protected areas1

IUCN IV · 1

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

Sub-administrations4