Ontologia

Arrondissement · NER

Tchighozerine

Niger

BWhArid, desert, hot(100 %)

Species observed

1 003

Observations

7 992

Area

144 687,1km²

Ecological tissue

Sample of 25 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 Tchighozerine : 21 espèces reliées par 26 interactions GloBI sur 4 types (connectance 8.0%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
26
Connectance
0.080
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

1 003 distinct species · 7 992 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 992 obs · 68 cellules
Obs. / cellule
≥ 903
284–902
137–283
32–136
< 32

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

Climate

Mean T°

27,8°C

Annual rain

89mm

Warmest m°

40,5°C

Coldest m°

10,6°C

Elevation: 489 m on average (min 317 m, max 1 857 m)

Bioclimatic detailsExpert
Annual mean temp.
27,8°C
Annual rain
89mm
Warmest month
40,5°C
Coldest month
10,6°C
Mean alt.
489m
Min
317m
Max
1 857m
Std. dev.
147m
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

3,8g/kg

Clay

24,3%

Sand

49,9%

Silt

25,9%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,1
Org. C
5,1g/kg
Clay
24,0%
Sand
50,0%
Silt
26,0%
5–15 cm
pH H₂O
8,1
Org. C
3,6g/kg
Clay
24,1%
Sand
50,0%
Silt
25,9%
15–30 cm
pH H₂O
8,1
Org. C
2,8g/kg
Clay
24,8%
Sand
49,6%
Silt
25,7%

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

Land cover

Forest0.3%
Crops1.4%
Built-up0.0%
Bare soil81.2%
Other (grassland, water…)17.1%

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

Hydrology243 basins · 0 lakes · 27 rivers

Hydrology metrics for this exact territory

Stream length here

2 365,8km

Basins crossed

243

Max stream order

6

Max drainage

325 643km²

Discharge in basins

355,9m³/s

Mean precip.

108mm/an

Mean T°

27,7°C

Moisture idx

-0,95

Mean runoff

22mm/an

Mean elev. (basins)

491m

Watersheds crossing here

234 more basins

Rivers / streams (27, ord ≥ 4)

15 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

0,4%

Pesticides

0,0kg/km²

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

Protected areas8

IUCN Not Applicable · 5IUCN IV · 2IUCN Ib · 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