Ontologia

Local Authority · NGA

Southern Ijaw

Nigeria

AmTropical, monsoon(93 %)

Species observed

283

Observations

411

Area

2 571,2km²

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 Southern Ijaw : 18 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 4 types (connectance 6.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
20
Connectance
0.067
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

283 distinct species · 411 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

411 obs · 24 cellules
Obs. / cellule
≥ 182
48–181
4–47
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

2 592mm

Warmest m°

30,1°C

Coldest m°

23,3°C

Elevation: 6 m on average (min -6 m, max 13 m)

Bioclimatic detailsExpert
Annual mean temp.
26,2°C
Annual rain
2 592mm
Warmest month
30,1°C
Coldest month
23,3°C
Mean alt.
6m
Min
-6m
Max
13m
Std. dev.
2m
Köppen-Geiger (dominant)
AmTropical, monsoon(93 %)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

44,6g/kg

Clay

38,8%

Sand

20,9%

Silt

40,2%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,1
Org. C
56,4g/kg
Clay
38,1%
Sand
21,4%
Silt
40,5%
5–15 cm
pH H₂O
5,1
Org. C
45,5g/kg
Clay
38,1%
Sand
21,4%
Silt
40,5%
15–30 cm
pH H₂O
5,1
Org. C
31,9g/kg
Clay
40,3%
Sand
20,0%
Silt
39,7%

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

Land cover

Forest66.0%
Crops0.3%
Built-up0.1%
Bare soil0.2%
Other (grassland, water…)33.3%

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

Hydrology16 basins · 3 lakes · 40 rivers

Hydrology metrics for this exact territory

Stream length here

682,9km

Lake surface here

0,98km²

Basins crossed

16

Max stream order

8

Max drainage

2 098 664km²

Discharge in basins

12 333,5m³/s

Mean precip.

3 308mm/an

Mean T°

26,6°C

Moisture idx

0,55

Mean runoff

1 679mm/an

Mean elev. (basins)

12m

Watersheds crossing here

7 more basins

Lakes (3, top by area)

Rivers / streams (40, ord ≥ 4)

28 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

0,5nW

Built-up

15,4%

Pesticides

33,5kg/km²

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

Protected areas8

IUCN IV · 4IUCN Not Reported · 4

Apoi Creek Forests

IUCN IV

Wetland of International Importance (Ramsar Site) · 2008

297 km²

Nun River

IUCN Not Reported

Forest Reserve

92 km²

Complete list

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