Ontologia

Prefecture · GIN

Mandiana

Guinea

AwTropical, savannah(100 %)

Species observed

321

Observations

2 419

Area

11 577,6km²

Ecological tissue

Sample of 38 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 Mandiana : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 4 types (connectance 3.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
27
Connectance
0.038
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

321 distinct species · 2 419 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 419 obs · 87 cellules
Obs. / cellule
≥ 685
43–684
7–42
2–6
< 2

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

Climate

Mean T°

26,7°C

Annual rain

1 346mm

Warmest m°

36,9°C

Coldest m°

18,1°C

Elevation: 397 m on average (min 334 m, max 463 m)

Bioclimatic detailsExpert
Annual mean temp.
26,7°C
Annual rain
1 346mm
Warmest month
36,9°C
Coldest month
18,1°C
Mean alt.
397m
Min
334m
Max
463m
Std. dev.
23m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical

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

Soil & lithology

pH H₂O

5,9

Org. C

14,1g/kg

Clay

26,3%

Sand

45,5%

Silt

28,1%

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

Dominant lithology: vbGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
20,1g/kg
Clay
24,0%
Sand
47,2%
Silt
28,8%
5–15 cm
pH H₂O
5,9
Org. C
14,3g/kg
Clay
25,5%
Sand
46,1%
Silt
28,4%
15–30 cm
pH H₂O
5,8
Org. C
8,1g/kg
Clay
29,6%
Sand
43,2%
Silt
27,2%

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

Land cover

Forest24.7%
Crops15.3%
Built-up0.1%
Bare soil0.7%
Other (grassland, water…)59.2%

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

Hydrology30 basins · 5 lakes · 39 rivers

Hydrology metrics for this exact territory

Stream length here

1 224,6km

Lake surface here

8,34km²

Basins crossed

30

Max stream order

7

Max drainage

71 900km²

Discharge in basins

2 836,1m³/s

Mean precip.

1 337mm/an

Mean T°

26,4°C

Moisture idx

-0,36

Mean runoff

313mm/an

Mean elev. (basins)

398m

Watersheds crossing here

21 more basins

Lakes (5, top by area)

Rivers / streams (39, ord ≥ 4)

27 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

15,5%

Pesticides

0,8kg/km²

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

Protected areas4

IUCN IV · 4

Sankarani-Fié

IUCN IV

Wetland of International Importance (Ramsar Site) · 2002

16 494 km²

Niger-Niandan-Milo

IUCN IV

Wetland of International Importance (Ramsar Site) · 2002

13 990 km²

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

Sub-administrations11