Ontologia

Local Authority · NGA

Port Harcourt

Nigeria

AmTropical, monsoon(100 %)

Species observed

224

Observations

388

Area

162,6km²

Ecological tissue

Sample of 47 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 Port Harcourt : 42 espèces reliées par 40 interactions GloBI sur 4 types (connectance 3.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
47
Interactions affichées
40
Connectance
0.037
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

224 distinct species · 388 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

388 obs · 3 cellules
Obs. / cellule
≥ 184
184–183
184–183
112–183
< 112

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

Climate

Mean T°

26,1°C

Annual rain

2 261mm

Warmest m°

31,6°C

Coldest m°

22,7°C

Elevation: 5 m on average (min -2 m, max 15 m)

Bioclimatic detailsExpert
Annual mean temp.
26,1°C
Annual rain
2 261mm
Warmest month
31,6°C
Coldest month
22,7°C
Mean alt.
5m
Min
-2m
Max
15m
Std. dev.
2m
Köppen-Geiger (dominant)
AmTropical, monsoon(100 %)Tropical

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

Soil & lithology

pH H₂O

5,2

Org. C

35,9g/kg

Clay

29,0%

Sand

51,7%

Silt

19,3%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,2
Org. C
48,9g/kg
Clay
28,1%
Sand
52,2%
Silt
19,6%
5–15 cm
pH H₂O
5,2
Org. C
35,9g/kg
Clay
28,0%
Sand
52,6%
Silt
19,4%
15–30 cm
pH H₂O
5,2
Org. C
22,8g/kg
Clay
30,9%
Sand
50,2%
Silt
18,9%

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

Land cover

Forest25.9%
Crops2.2%
Built-up9.2%
Bare soil0.7%
Other (grassland, water…)62.0%

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

Hydrology6 basins · 0 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

15,1km

Basins crossed

6

Max stream order

4

Max drainage

1 343km²

Discharge in basins

4,7m³/s

Mean precip.

3 072mm/an

Mean T°

26,5°C

Moisture idx

0,48

Mean runoff

1 465mm/an

Mean elev. (basins)

11m

Watersheds crossing here

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

Human pressure

Pop. density

59hab/km²

Night light

4,5nW

Built-up

914,6%

Pesticides

36,5kg/km²

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