Ontologia

Local Authority · NGA

Yola North

Nigeria

AwTropical, savannah(98 %)

Species observed

203

Observations

894

Area

139,4km²

Ecological tissue

Sample of 38 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 Yola North : 30 espèces reliées par 46 interactions GloBI sur 2 types (connectance 6.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
46
Connectance
0.062
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

203 distinct species · 894 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

894 obs · 4 cellules
Obs. / cellule
≥ 523
523–522
362–522
362–361
< 362

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

Climate

Mean T°

28,5°C

Annual rain

872mm

Warmest m°

39,0°C

Coldest m°

18,9°C

Elevation: 204 m on average (min 155 m, max 435 m)

Bioclimatic detailsExpert
Annual mean temp.
28,5°C
Annual rain
872mm
Warmest month
39,0°C
Coldest month
18,9°C
Mean alt.
204m
Min
155m
Max
435m
Std. dev.
73m
Köppen-Geiger (dominant)
AwTropical, savannah(98 %)Tropical

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

Soil & lithology

pH H₂O

6,4

Org. C

14,8g/kg

Clay

27,9%

Sand

43,3%

Silt

28,8%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
23,9g/kg
Clay
29,3%
Sand
41,3%
Silt
29,4%
5–15 cm
pH H₂O
6,5
Org. C
13,4g/kg
Clay
27,7%
Sand
44,2%
Silt
28,1%
15–30 cm
pH H₂O
6,5
Org. C
7,1g/kg
Clay
26,9%
Sand
44,3%
Silt
28,9%

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

Land cover

Forest7.3%
Crops34.2%
Built-up4.1%
Bare soil1.7%
Other (grassland, water…)52.7%

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

Hydrology5 basins · 2 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

24,5km

Lake surface here

0,95km²

Basins crossed

5

Max stream order

7

Max drainage

106 175km²

Discharge in basins

474,3m³/s

Mean precip.

966mm/an

Mean T°

27,5°C

Moisture idx

-0,51

Mean runoff

180mm/an

Mean elev. (basins)

250m

Watersheds crossing here

Lakes (2, top by area)

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

17hab/km²

Night light

1,5nW

Built-up

410,2%

Pesticides

44,5kg/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