Ontologia

Local Authority · NGA

Chikun

Nigeria

AwTropical, savannah(100 %)

Species observed

333

Observations

7 599

Area

4 859,5km²

Ecological tissue

Sample of 31 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 Chikun : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 4 types (connectance 5.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
27
Connectance
0.058
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

333 distinct species · 7 599 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 599 obs · 51 cellules
Obs. / cellule
≥ 3 257
133–3 256
34–132
9–33
< 9

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

Climate

Mean T°

25,5°C

Annual rain

1 306mm

Warmest m°

35,6°C

Coldest m°

17,9°C

Elevation: 577 m on average (min 358 m, max 715 m)

Bioclimatic detailsExpert
Annual mean temp.
25,5°C
Annual rain
1 306mm
Warmest month
35,6°C
Coldest month
17,9°C
Mean alt.
577m
Min
358m
Max
715m
Std. dev.
71m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical

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

Soil & lithology

pH H₂O

5,8

Org. C

9,3g/kg

Clay

19,9%

Sand

58,2%

Silt

21,9%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
11,8g/kg
Clay
16,1%
Sand
61,4%
Silt
22,5%
5–15 cm
pH H₂O
5,8
Org. C
9,5g/kg
Clay
18,7%
Sand
59,2%
Silt
22,1%
15–30 cm
pH H₂O
5,8
Org. C
6,6g/kg
Clay
24,9%
Sand
54,0%
Silt
21,0%

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

Land cover

Forest19.0%
Crops24.0%
Built-up0.6%
Bare soil1.2%
Other (grassland, water…)55.3%

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

Hydrology18 basins · 2 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

396,3km

Lake surface here

47,54km²

Basins crossed

18

Max stream order

6

Max drainage

27 650km²

Discharge in basins

562,3m³/s

Mean precip.

1 234mm/an

Mean T°

25,4°C

Moisture idx

-0,33

Mean runoff

303mm/an

Mean elev. (basins)

573m

Watersheds crossing here

9 more basins

Lakes (2, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,1nW

Built-up

56,6%

Pesticides

42,0kg/km²

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

Protected areas6

IUCN Not Reported · 6

Kagurna

IUCN Not Reported

Forest Reserve

170 km²

Katerma

IUCN Not Reported

Forest Reserve

164 km²

Afaka

IUCN Not Reported

Forest Reserve

152 km²

Kakau

IUCN Not Reported

Forest Reserve

13 km²

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