Iwokrama International Centre
IUCN VIManaged Resource Use Area · 1996
3 715 km²
Region · guy
Upper Demerara-Berbice
Guyana
AfTropical, rainforest(100 %)
Species observed
4 132
Observations
32 216
Area
16 576,6km²
Ecological tissue
Sample of 25 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 Upper Demerara-Berbice : 20 espèces reliées par 25 interactions GloBI sur 2 types (connectance 8.3%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
25
Interactions affichées
25
Connectance
0.083
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
4 132 distinct species · 32 216 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
25,5°C
Annual rain
2 368mm
Warmest m°
31,2°C
Coldest m°
21,7°C
Elevation: 62 m on average (min -3 m, max 386 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
25,5°C
Annual rain
2 368mm
Warmest month
31,2°C
Coldest month
21,7°C
Mean alt.
62m
Min
-3m
Max
386m
Std. dev.
44m
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
4,7
Org. C
26,3g/kg
Clay
32,3%
Sand
44,0%
Silt
23,7%
Average over 0-30 cm. Per-depth details in expert panel.
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,7
Org. C
38,3g/kg
Clay
30,2%
Sand
45,5%
Silt
24,3%
5–15 cm
pH H₂O
4,7
Org. C
23,7g/kg
Clay
30,9%
Sand
45,0%
Silt
24,0%
15–30 cm
pH H₂O
4,8
Org. C
16,8g/kg
Clay
35,8%
Sand
41,4%
Silt
22,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest91.5%
Crops0.2%
Built-up0.0%
Bare soil0.1%
Other (grassland, water…)8.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology50 basins · 14 lakes · 18 rivers
Hydrology metrics for this exact territory
Stream length here
1 356,9km
Lake surface here
5,09km²
Basins crossed
50
Max stream order
7
Max drainage
154 861km²
Discharge in basins
16 974,6m³/s
Mean precip.
2 439mm/an
Mean T°
26,5°C
Moisture idx
0,34
Mean runoff
1 131mm/an
Mean elev. (basins)
78m
Watersheds crossing here
- Bassin de Demerarasub-area1 791,7 km²overlap1783.91 km²11%
- Bassin de Demerarasub-area1 468,3 km²overlap1461.94 km²9%
- Bassin de Berbice Riversub-area1 358,9 km²overlap1321.13 km²8%
- Bassin de Wikki Riversub-area1 334,8 km²overlap1307.74 km²8%
- Bassin de Berbice Riversub-area997,5 km²overlap893.45 km²5%
- Bassin de Berbice Riversub-area824,6 km²overlap821.05 km²5%
- Bassin de Essequibo Riversub-area1 196,8 km²overlap780.60 km²5%
- Bassin de Berbice Riversub-area640,1 km²overlap635.70 km²4%
- Bassin de Berbice Riversub-area662,1 km²overlap606.33 km²4%
41 more basinssorted by overlap
- Bassin de Essequibo Riversub-area753,1 km²overlap553.45 km²3%
- Bassin de Berbice Riversub-area525,1 km²overlap522.79 km²3%
- Bassin de Demerarasub-area474,2 km²overlap472.14 km²3%
- Basin #11250sub-area469,4 km²overlap467.39 km²3%
- Bassin de Demerarasub-area419,7 km²overlap417.84 km²3%
- Bassin de Demerarasub-area417,1 km²overlap415.25 km²3%
- Bassin de Essequibo Riversub-area634,9 km²overlap397.41 km²2%
- Bassin de Berbice Riversub-area329,1 km²overlap327.65 km²2%
- Bassin de Essequibo Riversub-area488,7 km²overlap276.93 km²2%
- Bassin de Kara-Kara Riversub-area286,4 km²overlap273.62 km²2%
- Bassin de Essequibo Riversub-area392,7 km²overlap249.30 km²2%
- Bassin de Demerara Riversub-area2 138,3 km²overlap228.41 km²1%
- Bassin de Berbice Riversub-area228,6 km²overlap227.62 km²1%
- Bassin de Demerarasub-area219 km²overlap218.02 km²1%
- Basin #01960sub-area218,3 km²overlap216.70 km²1%
- Bassin de Demerarasub-area232,6 km²overlap209.09 km²1%
- Bassin de Essequibo Riversub-area200 km²overlap199.10 km²1%
- Bassin de Essequibo Riversub-area201,2 km²overlap168.42 km²1%
- Bassin de Essequibo Riversub-area274,7 km²overlap162.45 km²1%
- Bassin de Maam Riversub-area162,5 km²overlap161.78 km²1%
- Bassin de Essequibo Riversub-area455,7 km²overlap151.96 km²1%
- Basin #20000sub-area142,2 km²overlap141.53 km²1%
- Bassin de Canje Riversub-area2 362,2 km²overlap104.22 km²1%
- Bassin de Bonasika Riversub-area1 239,8 km²overlap92.27 km²1%
- Bassin de Berbice Riversub-area83,9 km²overlap83.57 km²1%
- Bassin de Berbice Riversub-area1 045,3 km²overlap71.19 km²0%
- Bassin de Essequibo Riversub-area163,2 km²overlap44.84 km²0%
- Bassin de Essequibo Riversub-area80,4 km²overlap43.09 km²0%
- Bassin de Courantynesub-area2 398,4 km²overlap23.47 km²0%
- Bassin de Essequibo Riversub-area512,9 km²overlap21.84 km²0%
- Bassin de Essequibo Riversub-area27 km²overlap11.64 km²0%
- Bassin de Mahaicony Riversub-area1 042,5 km²overlap5.90 km²0%
- Bassin de Essequibo Riversub-area1 km²overlap1.02 km²0%
- Basin #17480sub-area139,7 km²overlap0.66 km²0%
- Bassin de Essequibo Riversub-area1,1 km²overlap0.60 km²0%
- Bassin de Essequibo Riversub-area176 km²overlap0.39 km²0%
- Bassin de Berbice Riversub-area2 967,7 km²overlap0.31 km²0%
- Bassin de Konawaruk Riversub-area873,3 km²overlap0.29 km²0%
- Bassin de Río Mazarunísub-area118,5 km²overlap0.25 km²0%
- Bassin de Essequibo Riversub-area259,5 km²overlap0.21 km²0%
- Bassin de Muruwa Riversub-area972 km²overlap0.17 km²0%
Lakes (14, top by area)
- Lac 1077867area0,7 km²avg depth3.0 m
- Lac 1077907area0,6 km²avg depth4.9 m
- Lac 1078011area0,6 km²avg depth3.9 m
- Lac 1078111area0,5 km²avg depth3.4 m
- Lac 1077876area0,5 km²avg depth5.4 m
- Lac 1077919area0,5 km²avg depth4.6 m
- Lac 1077872area0,3 km²avg depth4.1 m
- Lac 1078004area0,3 km²avg depth4.3 m
- Lac 1077874area0,3 km²avg depth3.5 m
Rivers / streams (18, ord ≥ 4)
- Berbice Riverord 6len here473.06 km57%total827 km
- Demeraraord 5len here425.59 km100%total426 km
- Essequibo Riverord 7len here308.89 km18%total1674 km
- Demerara Riverord 5len here26.46 km15%total173 km
- Kara-Kara Riverord 4len here22.88 km100%total23 km
- Wikki Riverord 5len here21.94 km100%total22 km
- Bonasika Riverord 3len here19.01 km75%total25 km
- Big Wineperu Riverord 5len here10.29 km100%total10 km
- Torani Canalord 1len here9.79 km55%total18 km
- Bucktownord 2len here8.48 km100%total9 km
- Bamia Riverord 2len here7.60 km100%total8 km
- Maam Riverord 3len here6.69 km100%total7 km
6 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
1,4%
Pesticides
5,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN VI · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN