Ontologia

Arrondissement · NER

Arlit

Niger

BWhArid, desert, hot(100 %)

Species observed

564

Observations

4 484

Area

201 432,6km²

Ecological tissue

Sample of 35 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 Arlit : 23 espèces reliées par 51 interactions GloBI sur 4 types (connectance 8.1%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
51
Connectance
0.081
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

564 distinct species · 4 484 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 484 obs · 76 cellules
Obs. / cellule
≥ 1 134
181–1 133
22–180
6–21
< 6

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

Climate

Mean T°

26,4°C

Annual rain

26mm

Warmest m°

40,1°C

Coldest m°

7,9°C

Elevation: 588 m on average (min 345 m, max 1 816 m)

Bioclimatic detailsExpert
Annual mean temp.
26,4°C
Annual rain
26mm
Warmest month
40,1°C
Coldest month
7,9°C
Mean alt.
588m
Min
345m
Max
1 816m
Std. dev.
180m
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

8,3

Org. C

4,0g/kg

Clay

20,4%

Sand

49,7%

Silt

29,9%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,3
Org. C
5,0g/kg
Clay
20,0%
Sand
50,1%
Silt
29,8%
5–15 cm
pH H₂O
8,3
Org. C
4,3g/kg
Clay
20,4%
Sand
49,6%
Silt
30,0%
15–30 cm
pH H₂O
8,3
Org. C
2,6g/kg
Clay
20,9%
Sand
49,3%
Silt
29,8%

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

Land cover

Forest0.1%
Crops0.1%
Built-up0.0%
Bare soil97.3%
Other (grassland, water…)2.5%

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

Hydrology347 basins · 0 lakes · 48 rivers

Hydrology metrics for this exact territory

Stream length here

3 170,8km

Basins crossed

347

Max stream order

6

Max drainage

202 370km²

Discharge in basins

516,0m³/s

Mean precip.

29mm/an

Mean T°

26,5°C

Moisture idx

-0,99

Mean runoff

12mm/an

Mean elev. (basins)

592m

Watersheds crossing here

338 more basins

Rivers / streams (48, ord ≥ 4)

36 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

0,2%

Pesticides

0,0kg/km²

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

Protected areas8

IUCN Not Applicable · 4IUCN IV · 2IUCN Ib · 1IUCN Ia · 1

Ahaggar

IUCN Not Applicable

Cultural Park · 1987

542 179 km²

Aïr et Ténéré

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 1997

78 299 km²

Complete list

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

Sub-administrations1