Ontologia

State · nga

Bayelsa

Nigeria

AmTropical, monsoon(94 %)

Species observed

1 025

Observations

4 416

Area

9 764,1km²

Ecological tissue

Sample of 34 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 Bayelsa : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 41 interactions GloBI sur 3 types (connectance 7.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
41
Connectance
0.073
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

1 025 distinct species · 4 416 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 416 obs · 110 cellules
Obs. / cellule
≥ 342
124–341
19–123
3–18
< 3

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

2 610mm

Warmest m°

30,9°C

Coldest m°

23,0°C

Elevation: 7 m on average (min -6 m, max 19 m)

Bioclimatic detailsExpert
Annual mean temp.
26,2°C
Annual rain
2 610mm
Warmest month
30,9°C
Coldest month
23,0°C
Mean alt.
7m
Min
-6m
Max
19m
Std. dev.
3m
Köppen-Geiger (dominant)
AmTropical, monsoon(94 %)Tropical

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

Soil & lithology

pH H₂O

5,1

Org. C

39,6g/kg

Clay

35,9%

Sand

25,5%

Silt

38,6%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
51,3g/kg
Clay
35,2%
Sand
26,0%
Silt
38,8%
5–15 cm
pH H₂O
5,1
Org. C
40,1g/kg
Clay
35,3%
Sand
25,9%
Silt
38,8%
15–30 cm
pH H₂O
5,1
Org. C
27,3g/kg
Clay
37,4%
Sand
24,6%
Silt
38,1%

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

Land cover

Forest65.1%
Crops0.5%
Built-up0.4%
Bare soil0.1%
Other (grassland, water…)33.9%

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

Hydrology32 basins · 14 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

1 896,2km

Lake surface here

5,28km²

Basins crossed

32

Max stream order

8

Max drainage

2 098 664km²

Discharge in basins

22 545,7m³/s

Mean precip.

3 139mm/an

Mean T°

26,7°C

Moisture idx

0,51

Mean runoff

1 625mm/an

Mean elev. (basins)

14m

Watersheds crossing here

23 more basins

Lakes (14, top by area)

5 more lakes

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

1,0nW

Built-up

36,2%

Pesticides

34,3kg/km²

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

Protected areas11

IUCN Not Reported · 7IUCN IV · 4📍 Point sites · 1

Apoi Creek Forests

IUCN IV

Wetland of International Importance (Ramsar Site) · 2008

297 km²

Edumanom

IUCN Not Reported

National Park · 2020

296 km²

Nun River

IUCN Not Reported

Forest Reserve

92 km²

Complete list

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

Sub-administrations8