Rio Negro
IUCN IbWetland of International Importance (Ramsar Site) · 2018
119 481 km²
Municipality · BRA
Maraã
Brazil
AfTropical, rainforest(100 %)
Species observed
1 636
Observations
10 419
Area
16 830,8km²
Ecological tissue
Sample of 36 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 Maraã : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 26 interactions GloBI sur 3 types (connectance 3.9%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
26
Connectance
0.039
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
1 636 distinct species · 10 419 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,1°C
Annual rain
3 164mm
Warmest m°
30,1°C
Coldest m°
22,5°C
Elevation: 41 m on average (min 24 m, max 64 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
26,1°C
Annual rain
3 164mm
Warmest month
30,1°C
Coldest month
22,5°C
Mean alt.
41m
Min
24m
Max
64m
Std. dev.
7m
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
4,2
Org. C
34,9g/kg
Clay
31,5%
Sand
20,7%
Silt
47,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,1
Org. C
48,4g/kg
Clay
29,7%
Sand
21,2%
Silt
49,1%
5–15 cm
pH H₂O
4,2
Org. C
31,4g/kg
Clay
30,7%
Sand
21,2%
Silt
48,1%
15–30 cm
pH H₂O
4,2
Org. C
24,8g/kg
Clay
34,1%
Sand
19,7%
Silt
46,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest89.1%
Crops0.0%
Built-up0.0%
Bare soil0.1%
Other (grassland, water…)10.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology44 basins · 50 lakes · 10 rivers
Hydrology metrics for this exact territory
Stream length here
904,0km
Lake surface here
323,66km²
Basins crossed
44
Max stream order
8
Max drainage
1 736 498km²
Discharge in basins
207 814,4m³/s
Mean precip.
2 989mm/an
Mean T°
26,4°C
Moisture idx
0,44
Mean runoff
1 880mm/an
Mean elev. (basins)
52m
Watersheds crossing here
- Bassin de Rio Caquetásub-area2 151,5 km²overlap2086.65 km²12%
- Bassin de Rio Urumurumsub-area1 750,9 km²overlap1731.32 km²10%
- Basin #70230sub-area1 103 km²overlap1097.88 km²7%
- Bassin de Rio Solimõessub-area1 752,3 km²overlap1080.44 km²6%
- Bassin de Rio Paraná Copeásub-area1 014,7 km²overlap1010.24 km²6%
- Bassin de Rio Paraná Copeásub-area966,6 km²overlap962.26 km²6%
- Bassin de Rio Caquetásub-area1 214 km²overlap865.65 km²5%
- Bassin de Rio Caquetásub-area2 098,9 km²overlap856.95 km²5%
- Bassin de Rio Caquetásub-area1 289 km²overlap797.07 km²5%
35 more basinssorted by overlap
- Bassin de Rio Caquetásub-area734,6 km²overlap729.25 km²4%
- Basin #64270sub-area832,6 km²overlap717.55 km²4%
- Bassin de Paraná Tambaquisub-area1 509,9 km²overlap631.51 km²4%
- Bassin de Rio Paraná Copeásub-area504,1 km²overlap501.84 km²3%
- Bassin de Rio Caquetásub-area518,8 km²overlap443.39 km²3%
- Basin #70240sub-area770,5 km²overlap387.96 km²2%
- Basin #49280sub-area412,7 km²overlap349.47 km²2%
- Basin #39890sub-area1 567,2 km²overlap310.33 km²2%
- Bassin de Rio Caquetásub-area696,4 km²overlap306.39 km²2%
- Bassin de Paraná Copeásub-area1 096 km²overlap241.21 km²1%
- Bassin de Rio Caquetásub-area217,1 km²overlap216.14 km²1%
- Bassin de Rio Arumasub-area315,2 km²overlap206.60 km²1%
- Bassin de Rio Solimõessub-area257,7 km²overlap132.99 km²1%
- Bassin de Igarapé Juticasub-area249 km²overlap131.84 km²1%
- Basin #98710sub-area410,2 km²overlap130.71 km²1%
- Bassin de Rio Solimõessub-area255,1 km²overlap117.68 km²1%
- Bassin de Rio Cuiunisub-area380 km²overlap113.27 km²1%
- Bassin de Rio Paraná Piteirasub-area157 km²overlap92.81 km²1%
- Bassin de Rio Solimõessub-area752,9 km²overlap89.00 km²1%
- Basin #52750sub-area1 401,5 km²overlap75.57 km²0%
- Bassin de Rio Pretosub-area4 090,4 km²overlap60.96 km²0%
- Bassin de Paraná Copeásub-area76,7 km²overlap57.90 km²0%
- Bassin de Rio Caquetásub-area68,8 km²overlap51.27 km²0%
- Basin #44520sub-area4 159,8 km²overlap49.37 km²0%
- Bassin de Paraná Copeásub-area838,8 km²overlap37.46 km²0%
- Bassin de Rio Arumasub-area195,7 km²overlap30.52 km²0%
- Basin #52510sub-area408,1 km²overlap29.32 km²0%
- Basin #30540sub-area1 541,7 km²overlap28.85 km²0%
- Basin #92210sub-area139,2 km²overlap23.70 km²0%
- Bassin de Rio Paraná Piteirasub-area578,2 km²overlap18.87 km²0%
- Bassin de Rio Cuiunisub-area188,4 km²overlap14.88 km²0%
- Bassin de Rio Caquetásub-area10,4 km²overlap10.31 km²0%
- Bassin de Paraná Copeásub-area274,7 km²overlap2.74 km²0%
- Bassin de Rio Arumasub-area351,5 km²overlap0.68 km²0%
- Basin #98830sub-area692,7 km²overlap0.00 km²0%
Lakes (50, top by area)
- Amanaarea104,2 km²avg depth15.9 m
- Lago Japiáarea21,8 km²avg depth13.2 m
- Lago Mouraarea20,3 km²avg depth3.3 m
- Lake #9979area18,5 km²avg depth1.9 m
- Lago Uriniarea14,4 km²avg depth8.4 m
- Lake #10043area12,6 km²avg depth9.8 m
- Lago Mouraarea8,6 km²avg depth1.2 m
- Lake #17301area8 km²avg depth1.9 m
- Lago Jutaíarea5,8 km²avg depth4.5 m
41 more lakes
- Lake #18168area5,7 km²avg depth2.8 m
- Lake #17397area4,6 km²avg depth5.0 m
- Lake #17432area4,2 km²avg depth2.4 m
- Lago Maraãarea4,1 km²avg depth5.4 m
- Lake #18160area4 km²avg depth2.6 m
- Lake #17392area4 km²avg depth3.3 m
- Lake #17970area3,9 km²avg depth3.1 m
- Lago Paricáarea3,4 km²avg depth3.7 m
- Lake #17182area3,3 km²avg depth3.0 m
- Lake #17861area3,3 km²avg depth1.8 m
- Lake #17977area3,3 km²avg depth2.8 m
- Lake #18173area3,2 km²avg depth1.6 m
- Lake #17472area3,1 km²avg depth3.8 m
- Lake #17993area3,1 km²avg depth2.2 m
- Lake #18126area3,1 km²avg depth2.4 m
- Lago Atopéarea3,1 km²avg depth5.3 m
- Lago Amanãarea2,9 km²avg depth5.4 m
- Lake #17803area2,8 km²avg depth6.1 m
- Lake #17932area2,8 km²avg depth2.7 m
- Lake #18350area2,7 km²avg depth4.2 m
- Lake #18170area2,6 km²avg depth1.8 m
- Lago Amanãarea2,5 km²avg depth4.4 m
- Lake #17231area2,5 km²avg depth0.9 m
- Lake #17740area2,4 km²avg depth3.0 m
- Lake #17868area2,4 km²avg depth1.8 m
- Lake #17985area2,4 km²avg depth2.3 m
- Lake #17138area2,3 km²avg depth4.3 m
- Lake #17263area2,2 km²avg depth3.7 m
- Lake #17962area2,2 km²avg depth2.5 m
- Lake #17705area2,2 km²avg depth3.6 m
- Lake #17871area1,9 km²avg depth3.5 m
- Lake #17360area1,9 km²avg depth2.8 m
- Lake #17361area1,9 km²avg depth2.4 m
- Lake #17214area1,8 km²avg depth3.1 m
- Lake #17838area1,8 km²avg depth4.0 m
- Lake #17156area1,7 km²avg depth1.6 m
- Lake #17444area1,7 km²avg depth0.7 m
- Lake #18210area1,6 km²avg depth2.7 m
- Lago Amanãarea1,6 km²avg depth2.3 m
- Lake #17419area1,6 km²avg depth1.5 m
- Lake #17177area1,6 km²avg depth2.8 m
Rivers / streams (10, ord ≥ 4)
- Rio Caquetáord 8len here333.38 km31%total1069 km
- Rio Paraná Copeáord 5len here231.61 km100%total232 km
- Paraná Tambaquiord 6len here74.67 km57%total132 km
- Rio Paraná Piteiraord 6len here66.32 km100%total67 km
- Paraná Copeáord 9len here63.31 km22%total290 km
- Furo Castanhoord 6len here46.74 km49%total96 km
- Rio Solimõesord 9len here30.27 km6%total503 km
- Rio Urumurumord 5len here26.49 km100%total27 km
- Rio Paraná do Cuxiúord 8len here23.57 km100%total24 km
- Rio Arumaord 5len here7.64 km10%total74 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
0,2%
Pesticides
59,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas11
IUCN VI · 4IUCN Not Reported · 4IUCN Ib · 1IUCN Not Applicable · 1IUCN V · 1
Central Amazon Conservation Complex
IUCN Not ApplicableWorld Heritage Site (natural or mixed) · 2000
50 971 km²
Área De Proteção Ambiental Tapuruquara
IUCN VEnvironmental Protection Area · 2001
30 425 km²
Reserva De Desenvolvimento Sustentável Amanã
IUCN VISustainable Development Reserve · 1998
23 035 km²
Reserva De Desenvolvimento Sustentável Mamirauá
IUCN VISustainable Development Reserve · 1990
13 199 km²
Mamirauá
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 1993
11 474 km²
Complete list11 protected areas
- Rio NegroWetland of International Importance (Ramsar Site)IUCN Ib2018119 481 km²
- Central Amazon Conservation ComplexWorld Heritage Site (natural or mixed)IUCN Not Applicable200050 971 km²
- Área De Proteção Ambiental TapuruquaraEnvironmental Protection AreaIUCN V200130 425 km²
- Reserva De Desenvolvimento Sustentável AmanãSustainable Development ReserveIUCN VI199823 035 km²
- Reserva De Desenvolvimento Sustentável MamirauáSustainable Development ReserveIUCN VI199013 199 km²
- MamirauáWetland of International Importance (Ramsar Site)IUCN Not Reported199311 474 km²
- Reserva Extrativista Do Rio UniniExtractive ReserveIUCN VI20068 497 km²
- Reserva Extrativista Auatí-ParanáExtractive ReserveIUCN VI20011 420 km²
- Maraã UrubaxiIndigenous AreaIUCN Not Reported2000943 km²
- Cuiu-CuiuIndigenous AreaIUCN Not Reported2004364 km²
- Parana do ParicáIndigenous AreaIUCN Not Reported200180 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN