Ontologia

Local Authority · NGA

Biriniwa

Nigeria

BShArid, steppe, hot(100 %)

Species observed

113

Observations

1 164

Area

1 581,6km²

Ecological tissue

Sample of 23 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 Biriniwa : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 3 types (connectance 8.7%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
26
Connectance
0.087
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

113 distinct species · 1 164 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 164 obs · 23 cellules
Obs. / cellule
≥ 132
83–131
61–82
54–60
< 54

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

Climate

Mean T°

28,0°C

Annual rain

446mm

Warmest m°

40,0°C

Coldest m°

14,2°C

Elevation: 351 m on average (min 345 m, max 357 m)

Bioclimatic detailsExpert
Annual mean temp.
28,0°C
Annual rain
446mm
Warmest month
40,0°C
Coldest month
14,2°C
Mean alt.
351m
Min
345m
Max
357m
Std. dev.
3m
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

6,7

Org. C

5,4g/kg

Clay

20,4%

Sand

53,2%

Silt

26,4%

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
6,5g/kg
Clay
19,5%
Sand
54,2%
Silt
26,3%
5–15 cm
pH H₂O
6,7
Org. C
5,2g/kg
Clay
19,8%
Sand
53,5%
Silt
26,7%
15–30 cm
pH H₂O
6,7
Org. C
4,4g/kg
Clay
22,0%
Sand
51,9%
Silt
26,0%

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

Land cover

Forest4.9%
Crops31.9%
Built-up0.3%
Bare soil2.0%
Other (grassland, water…)61.0%

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

Hydrology8 basins · 1 lakes · 0 rivers

Hydrology metrics for this exact territory

Lake surface here

0,15km²

Basins crossed

8

Max drainage

28 849km²

Discharge in basins

22,3m³/s

Mean precip.

510mm/an

Mean T°

27,2°C

Moisture idx

-0,76

Mean runoff

12mm/an

Mean elev. (basins)

359m

Watersheds crossing here

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

27,1%

Pesticides

24,1kg/km²

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

Protected areas8

IUCN Not Reported · 8

Kukangiwa

IUCN Not Reported

Forest Reserve

18 km²

Barburam

IUCN Not Reported

Forest Reserve

8 km²

Complete list

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