Ontologia

Region · mrt

Adrar

Mauritania

BWhArid, desert, hot(100 %)

Species observed

661

Observations

7 121

Area

222 687,7km²

Ecological tissue

Sample of 26 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 Adrar : 19 espèces reliées par 38 interactions GloBI sur 3 types (connectance 11.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
38
Connectance
0.117
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

661 distinct species · 7 121 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 121 obs · 118 cellules
Obs. / cellule
≥ 923
106–922
31–105
19–30
< 19

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

Climate

Mean T°

26,9°C

Annual rain

39mm

Warmest m°

41,5°C

Coldest m°

10,2°C

Elevation: 326 m on average (min 46 m, max 748 m)

Bioclimatic detailsExpert
Annual mean temp.
26,9°C
Annual rain
39mm
Warmest month
41,5°C
Coldest month
10,2°C
Mean alt.
326m
Min
46m
Max
748m
Std. dev.
104m
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

8,0

Org. C

3,9g/kg

Clay

21,8%

Sand

57,9%

Silt

20,3%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
4,9g/kg
Clay
22,0%
Sand
57,8%
Silt
20,2%
5–15 cm
pH H₂O
8,0
Org. C
3,7g/kg
Clay
22,0%
Sand
57,7%
Silt
20,3%
15–30 cm
pH H₂O
8,0
Org. C
3,3g/kg
Clay
21,5%
Sand
58,2%
Silt
20,3%

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

Land cover

Forest0.0%
Crops0.0%
Built-up0.0%
Bare soil98.8%
Other (grassland, water…)1.1%

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

Hydrology304 basins · 0 lakes · 29 rivers

Hydrology metrics for this exact territory

Stream length here

946,8km

Basins crossed

304

Max stream order

4

Max drainage

56 586km²

Discharge in basins

65,5m³/s

Mean precip.

48mm/an

Mean T°

27,8°C

Moisture idx

-0,98

Mean runoff

6mm/an

Mean elev. (basins)

326m

Watersheds crossing here

295 more basins

Rivers / streams (29, ord ≥ 4)

17 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

0,3%

Pesticides

0,0kg/km²

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

Sub-administrations3