Ontologia

Commune · NER

Tessaoua

Niger

BShArid, steppe, hot(65 %)

Species observed

151

Observations

330

Area

1 813,3km²

Ecological tissue

Sample of 9 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 Tessaoua : 8 espèces reliées par 7 interactions GloBI sur 3 types (connectance 19.4%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
9
Interactions affichées
7
Connectance
0.194
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

151 distinct species · 330 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

330 obs · 20 cellules
Obs. / cellule
≥ 92
55–91
18–54
11–17
< 11

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

Climate

Mean T°

27,6°C

Annual rain

368mm

Warmest m°

39,3°C

Coldest m°

12,8°C

Elevation: 420 m on average (min 391 m, max 463 m)

Bioclimatic detailsExpert
Annual mean temp.
27,6°C
Annual rain
368mm
Warmest month
39,3°C
Coldest month
12,8°C
Mean alt.
420m
Min
391m
Max
463m
Std. dev.
15m
Köppen-Geiger (dominant)
BShArid, steppe, hot(65 %)Arid

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,6

Org. C

3,8g/kg

Clay

16,4%

Sand

68,1%

Silt

15,5%

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

Dominant lithology: suGLiMaggregated to Tessaoua

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
4,3g/kg
Clay
15,0%
Sand
69,1%
Silt
15,8%
5–15 cm
pH H₂O
6,7
Org. C
4,1g/kg
Clay
16,1%
Sand
68,3%
Silt
15,6%
15–30 cm
pH H₂O
6,6
Org. C
3,0g/kg
Clay
18,2%
Sand
66,7%
Silt
15,1%

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

Land cover

Forest6.0%
Crops36.5%
Built-up0.5%
Bare soil3.4%
Other (grassland, water…)53.6%

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

Hydrology9 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

9

Max drainage

12 112km²

Discharge in basins

16,2m³/s

Mean precip.

377mm/an

Mean T°

27,5°C

Moisture idx

-0,82

Mean runoff

18mm/an

Mean elev. (basins)

434m

Watersheds crossing here

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

Human pressure

Pop. density

2hab/km²

Night light

0,0nW

Built-up

46,1%

Pesticides

0,0kg/km²

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