Ontologia

Commune · GUF

Saint-Laurent (du Maroni)

French Guiana

AfTropical, rainforest(99 %)

Species observed

4 228

Observations

16 476

Area

4 110,2km²

Ecological tissue

Sample of 26 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 Saint-Laurent (du Maroni) : 19 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 3 types (connectance 8.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
29
Connectance
0.089
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

4 228 distinct species · 16 476 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

16 476 obs · 84 cellules
Obs. / cellule
≥ 2 679
617–2 678
85–616
17–84
< 17

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

Climate

Mean T°

25,6°C

Annual rain

2 427mm

Warmest m°

32,3°C

Coldest m°

21,6°C

Elevation: 84 m on average (min 0 m, max 513 m)

Bioclimatic detailsExpert
Annual mean temp.
25,6°C
Annual rain
2 427mm
Warmest month
32,3°C
Coldest month
21,6°C
Mean alt.
84m
Min
0m
Max
513m
Std. dev.
63m
Köppen-Geiger (dominant)
AfTropical, rainforest(99 %)Tropical

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

Soil & lithology

pH H₂O

4,5

Org. C

34,6g/kg

Clay

33,1%

Sand

44,8%

Silt

22,1%

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

Dominant lithology: paGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,4
Org. C
56,8g/kg
Clay
31,4%
Sand
46,2%
Silt
22,4%
5–15 cm
pH H₂O
4,5
Org. C
28,9g/kg
Clay
31,9%
Sand
45,8%
Silt
22,3%
15–30 cm
pH H₂O
4,6
Org. C
18,1g/kg
Clay
36,2%
Sand
42,3%
Silt
21,5%

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

Land cover

Forest97.2%
Crops0.0%
Built-up0.1%
Bare soil0.0%
Other (grassland, water…)2.7%

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

Hydrology15 basins · 0 lakes · 48 rivers

Hydrology metrics for this exact territory

Stream length here

774,3km

Basins crossed

15

Max stream order

7

Max drainage

66 409km²

Discharge in basins

2 463,9m³/s

Mean precip.

2 512mm/an

Mean T°

26,0°C

Moisture idx

0,38

Mean runoff

1 079mm/an

Mean elev. (basins)

103m

Watersheds crossing here

6 more basins

Rivers / streams (48, ord ≥ 4)

36 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

5,1%

Pesticides

30,7kg/km²

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

Protected areas3

IUCN V · 1IUCN Ib · 1IUCN IV · 1🌊 Marine · 2

Guyane

IUCN V

Regional Nature Park · 2001

6 228 km²

Basse-Mana

IUCN IV

Wetland of International Importance (Ramsar Site) · 1993

640 km²

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