Ontologia

Department · MRT

Tidjikja

Mauritania

BWhArid, desert, hot(100 %)

Species observed

164

Observations

594

Area

19 023,3km²

Ecological tissue

Sample of 37 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 Tidjikja : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 2 types (connectance 5.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
34
Connectance
0.051
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

164 distinct species · 594 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

594 obs · 119 cellules
Obs. / cellule
≥ 41
13–40
3–12
2–2
< 2

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

Climate

Mean T°

28,2°C

Annual rain

100mm

Warmest m°

39,7°C

Coldest m°

13,1°C

Elevation: 366 m on average (min 116 m, max 552 m)

Bioclimatic detailsExpert
Annual mean temp.
28,2°C
Annual rain
100mm
Warmest month
39,7°C
Coldest month
13,1°C
Mean alt.
366m
Min
116m
Max
552m
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

8,1

Org. C

3,7g/kg

Clay

23,0%

Sand

55,6%

Silt

21,4%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
4,7g/kg
Clay
22,8%
Sand
55,4%
Silt
21,8%
5–15 cm
pH H₂O
8,1
Org. C
3,3g/kg
Clay
22,5%
Sand
56,2%
Silt
21,3%
15–30 cm
pH H₂O
8,1
Org. C
3,1g/kg
Clay
23,7%
Sand
55,3%
Silt
21,0%

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

Land cover

Forest0.0%
Crops0.1%
Built-up0.0%
Bare soil92.4%
Other (grassland, water…)7.5%

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

Hydrology49 basins · 0 lakes · 18 rivers

Hydrology metrics for this exact territory

Stream length here

562,6km

Basins crossed

49

Max stream order

6

Max drainage

53 253km²

Discharge in basins

67,5m³/s

Mean precip.

121mm/an

Mean T°

28,1°C

Moisture idx

-0,94

Mean runoff

35mm/an

Mean elev. (basins)

368m

Watersheds crossing here

40 more basins

Rivers / streams (18, ord ≥ 4)

6 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

1,2%

Pesticides

0,0kg/km²

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