Ontologia

Region · guy

Demerara-Mahaica

Guyana

AfTropical, rainforest(100 %)

Species observed

2 931

Observations

104 733

Area

2 113,9km²

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 Demerara-Mahaica : 18 espèces reliées par 33 interactions GloBI sur 3 types (connectance 8.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
33
Connectance
0.087
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

2 931 distinct species · 104 733 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

104 733 obs · 56 cellules
Obs. / cellule
≥ 66 842
4 020–66 841
546–4 019
196–545
< 196

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

Climate

Mean T°

25,8°C

Annual rain

2 223mm

Warmest m°

30,4°C

Coldest m°

22,6°C

Elevation: 12 m on average (min -2 m, max 48 m)

Bioclimatic detailsExpert
Annual mean temp.
25,8°C
Annual rain
2 223mm
Warmest month
30,4°C
Coldest month
22,6°C
Mean alt.
12m
Min
-2m
Max
48m
Std. dev.
13m
Köppen-Geiger (dominant)
AfTropical, rainforest(100 %)Tropical

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

Soil & lithology

pH H₂O

5,0

Org. C

55,2g/kg

Clay

31,5%

Sand

31,7%

Silt

36,7%

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

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,0
Org. C
62,5g/kg
Clay
29,3%
Sand
33,0%
Silt
37,6%
5–15 cm
pH H₂O
5,0
Org. C
50,5g/kg
Clay
30,0%
Sand
32,6%
Silt
37,4%
15–30 cm
pH H₂O
5,0
Org. C
52,7g/kg
Clay
35,3%
Sand
29,5%
Silt
35,2%

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

Land cover

Forest47.9%
Crops1.3%
Built-up1.0%
Bare soil0.4%
Other (grassland, water…)49.5%

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

Hydrology4 basins · 0 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

128,2km

Basins crossed

4

Max stream order

5

Max drainage

7 448km²

Discharge in basins

132,3m³/s

Mean precip.

1 880mm/an

Mean T°

26,5°C

Moisture idx

0,23

Mean runoff

882mm/an

Mean elev. (basins)

19m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

1,6nW

Built-up

97,1%

Pesticides

17,1kg/km²

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

Sub-administrations19