Ontologia

Commune · CMR

Maroua 2

Cameroon

AwTropical, savannah(67 %)

Species observed

826

Observations

2 858

Area

194,3km²

Ecological tissue

Sample of 35 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 Maroua 2 : 24 espèces reliées par 47 interactions GloBI sur 5 types (connectance 7.9%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
47
Connectance
0.079
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

826 distinct species · 2 858 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 858 obs · 6 cellules
Obs. / cellule
≥ 1 399
1 399–1 398
920–1 398
225–919
< 225

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

Climate

Mean T°

27,4°C

Annual rain

862mm

Warmest m°

39,3°C

Coldest m°

16,9°C

Elevation: 421 m on average (min 369 m, max 673 m)

Bioclimatic detailsExpert
Annual mean temp.
27,4°C
Annual rain
862mm
Warmest month
39,3°C
Coldest month
16,9°C
Mean alt.
421m
Min
369m
Max
673m
Std. dev.
46m
Köppen-Geiger (dominant)
AwTropical, savannah(67 %)Tropical

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

Soil & lithology

pH H₂O

6,6

Org. C

10,0g/kg

Clay

22,1%

Sand

49,4%

Silt

28,6%

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

Dominant lithology: suGLiMaggregated to Diamaré

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
13,8g/kg
Clay
19,4%
Sand
51,2%
Silt
29,3%
5–15 cm
pH H₂O
6,6
Org. C
9,2g/kg
Clay
21,0%
Sand
50,2%
Silt
28,8%
15–30 cm
pH H₂O
6,6
Org. C
6,9g/kg
Clay
25,7%
Sand
46,7%
Silt
27,6%

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

Land cover

Forest4.9%
Crops43.0%
Built-up5.7%
Bare soil1.0%
Other (grassland, water…)45.5%

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

Hydrology4 basins · 0 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

54,6km

Basins crossed

4

Max stream order

3

Max drainage

2 234km²

Discharge in basins

0,8m³/s

Mean precip.

792mm/an

Mean T°

27,7°C

Moisture idx

-0,61

Mean runoff

114mm/an

Mean elev. (basins)

435m

Watersheds crossing here

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

Human pressure

Pop. density

21hab/km²

Night light

2,0nW

Built-up

564,6%

Pesticides

1,3kg/km²

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