Ontologia

State · nga

Borno

Nigeria

BShArid, steppe, hot(55 %)

Species observed

1 320

Observations

27 219

Area

71 407,5km²

Ecological tissue

Sample of 33 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 Borno : 25 espèces reliées par 40 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
40
Connectance
0.071
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

1 320 distinct species · 27 219 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

27 219 obs · 38 cellules
Obs. / cellule
≥ 16 081
1 003–16 080
234–1 002
74–233
< 74

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

28,0°C

Annual rain

584mm

Warmest m°

40,0°C

Coldest m°

15,2°C

Elevation: 345 m on average (min 182 m, max 1 115 m)

Bioclimatic detailsExpert
Annual mean temp.
28,0°C
Annual rain
584mm
Warmest month
40,0°C
Coldest month
15,2°C
Mean alt.
345m
Min
182m
Max
1 115m
Std. dev.
84m
Köppen-Geiger (dominant)
BShArid, steppe, hot(55 %)Arid

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

Soil & lithology

pH H₂O

6,8

Org. C

7,0g/kg

Clay

24,3%

Sand

53,4%

Silt

22,3%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,8
Org. C
8,7g/kg
Clay
22,7%
Sand
54,6%
Silt
22,7%
5–15 cm
pH H₂O
6,8
Org. C
6,7g/kg
Clay
23,7%
Sand
53,9%
Silt
22,4%
15–30 cm
pH H₂O
6,8
Org. C
5,5g/kg
Clay
26,5%
Sand
51,7%
Silt
21,7%

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

Land cover

Forest4.5%
Crops34.8%
Built-up0.2%
Bare soil0.9%
Other (grassland, water…)59.5%

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

Hydrology129 basins · 20 lakes · 56 rivers

Hydrology metrics for this exact territory

Stream length here

2 072,6km

Lake surface here

4 117,90km²

Basins crossed

129

Max stream order

7

Max drainage

248 079km²

Discharge in basins

1 197,7m³/s

Mean precip.

595mm/an

Mean T°

26,3°C

Moisture idx

-0,70

Mean runoff

60mm/an

Mean elev. (basins)

354m

Watersheds crossing here

120 more basins

Lakes (20, top by area)

11 more lakes

Rivers / streams (56, ord ≥ 4)

44 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

20,9%

Pesticides

28,0kg/km²

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

Protected areas77

IUCN Not Reported · 76IUCN IV · 1📍 Point sites · 1

Lac Tchad

IUCN IV

Wetland of International Importance (Ramsar Site) · 2008

2 153 km²

Sambisa

IUCN Not Reported

Game Reserve · 1978

523 km²

Marguba

IUCN Not Reported

Forest Reserve

353 km²

Gombole

IUCN Not Reported

Forest Reserve

316 km²

Complete list

+ 17 protected areas (top 60 shown)

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

Sub-administrations28