Amazon Estuary and its Mangroves
IUCN IIWetland of International Importance (Ramsar Site) · 2018
38 049 km²
Municipality · BRA
Chaval
Brazil
AwTropical, savannah(100 %)
Species observed
90
Observations
124
Area
237,2km²
Ecological tissue
Sample of 21 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 Chaval : 20 espèces reliées par 19 interactions GloBI sur 2 types (connectance 9.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
21
Interactions affichées
19
Connectance
0.090
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
90 distinct species · 124 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
27,9°C
Annual rain
959mm
Warmest m°
35,6°C
Coldest m°
23,8°C
Elevation: 29 m on average (min 3 m, max 60 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
27,9°C
Annual rain
959mm
Warmest month
35,6°C
Coldest month
23,8°C
Mean alt.
29m
Min
3m
Max
60m
Std. dev.
16m
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
5,7
Org. C
23,7g/kg
Clay
21,4%
Sand
56,9%
Silt
21,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,7
Org. C
37,3g/kg
Clay
17,9%
Sand
59,6%
Silt
22,5%
5–15 cm
pH H₂O
5,6
Org. C
17,1g/kg
Clay
18,2%
Sand
59,7%
Silt
22,1%
15–30 cm
pH H₂O
5,6
Org. C
16,5g/kg
Clay
28,1%
Sand
51,3%
Silt
20,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest28.6%
Crops19.4%
Built-up0.3%
Bare soil0.8%
Other (grassland, water…)51.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology3 basins · 1 lakes · 6 rivers
Hydrology metrics for this exact territory
Stream length here
72,8km
Lake surface here
0,17km²
Basins crossed
3
Max stream order
4
Max drainage
1 153km²
Discharge in basins
2,3m³/s
Mean precip.
1 034mm/an
Mean T°
26,7°C
Moisture idx
-0,43
Mean runoff
391mm/an
Mean elev. (basins)
157m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (6, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,3nW
Built-up
30,7%
Pesticides
75,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN V · 2IUCN II · 1🌊 Marine · 2
Área De Proteção Ambiental Serra Da Ibiapaba
IUCN VEnvironmental Protection Area · 1996
16 287 km²
Área De Proteção Ambiental Delta Do Parnaiba
IUCN VEnvironmental Protection Area · 1996
3 096 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN