Ontologia

Local Authority · NGA

Birnin Gwari

Nigeria

AwTropical, savannah(100 %)

Species observed

155

Observations

276

Area

6 256,1km²

Ecological tissue

Sample of 24 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 Birnin Gwari : 21 espèces reliées par 18 interactions GloBI sur 2 types (connectance 6.5%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
18
Connectance
0.065
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

155 distinct species · 276 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

276 obs · 34 cellules
Obs. / cellule
≥ 60
28–59
4–27
2–3
< 2

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

Climate

Mean T°

26,2°C

Annual rain

1 235mm

Warmest m°

36,6°C

Coldest m°

18,2°C

Elevation: 528 m on average (min 263 m, max 714 m)

Bioclimatic detailsExpert
Annual mean temp.
26,2°C
Annual rain
1 235mm
Warmest month
36,6°C
Coldest month
18,2°C
Mean alt.
528m
Min
263m
Max
714m
Std. dev.
100m
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

6,1

Org. C

9,0g/kg

Clay

19,2%

Sand

57,7%

Silt

23,1%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
11,7g/kg
Clay
16,4%
Sand
60,0%
Silt
23,6%
5–15 cm
pH H₂O
6,1
Org. C
8,8g/kg
Clay
17,7%
Sand
58,9%
Silt
23,4%
15–30 cm
pH H₂O
6,0
Org. C
6,4g/kg
Clay
23,5%
Sand
54,2%
Silt
22,3%

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

Land cover

Forest15.6%
Crops28.9%
Built-up0.2%
Bare soil0.9%
Other (grassland, water…)54.5%

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

Hydrology24 basins · 1 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

236,7km

Lake surface here

0,43km²

Basins crossed

24

Max stream order

5

Max drainage

7 339km²

Discharge in basins

153,2m³/s

Mean precip.

1 141mm/an

Mean T°

25,7°C

Moisture idx

-0,39

Mean runoff

262mm/an

Mean elev. (basins)

531m

Watersheds crossing here

15 more basins

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

17,5%

Pesticides

36,6kg/km²

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

Protected areas9

IUCN Not Reported · 8IUCN II · 1

Kwaimbana

IUCN Not Reported

Forest Reserve

2 603 km²

Kuyambana

IUCN Not Reported

Game Reserve · 1971

1 708 km²

Alawa

IUCN Not Reported

National Park · 2020

670 km²

Kogo

IUCN Not Reported

National Park · 2020

639 km²

Kamuku

IUCN II

National Park · 1999

346 km²

Complete list

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