Ontologia

Local Authority · NGA

Hadejia

Nigeria

BShArid, steppe, hot(100 %)

Species observed

86

Observations

247

Area

47,2km²

Ecological tissue

Sample of 28 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 Hadejia : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 6.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
28
Connectance
0.064
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

86 distinct species · 247 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

247 obs · 2 cellules
Obs. / cellule
≥ 132
132–131
132–131
132–131
< 132

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

Climate

Mean T°

27,4°C

Annual rain

529mm

Warmest m°

39,5°C

Coldest m°

13,4°C

Elevation: 356 m on average (min 355 m, max 357 m)

Bioclimatic detailsExpert
Annual mean temp.
27,4°C
Annual rain
529mm
Warmest month
39,5°C
Coldest month
13,4°C
Mean alt.
356m
Min
355m
Max
357m
Std. dev.
0m
Köppen-Geiger (dominant)
BShArid, steppe, hot(100 %)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

5,7g/kg

Clay

15,8%

Sand

52,5%

Silt

31,7%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
7,0g/kg
Clay
15,4%
Sand
52,8%
Silt
31,8%
5–15 cm
pH H₂O
6,6
Org. C
5,6g/kg
Clay
15,0%
Sand
52,9%
Silt
32,1%
15–30 cm
pH H₂O
6,7
Org. C
4,6g/kg
Clay
17,0%
Sand
51,8%
Silt
31,2%

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

Land cover

Forest4.9%
Crops35.0%
Built-up5.4%
Bare soil1.3%
Other (grassland, water…)53.4%

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

Hydrology1 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

1

Max drainage

24 070km²

Discharge in basins

0,1m³/s

Mean precip.

567mm/an

Mean T°

27,0°C

Moisture idx

-0,73

Mean runoff

28mm/an

Mean elev. (basins)

358m

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

Human pressure

Pop. density

26hab/km²

Night light

1,1nW

Built-up

536,2%

Pesticides

26,2kg/km²

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

Protected areas1

IUCN Not Reported · 1

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