The Japurá-Solimões-Negro moist forests blanket the central-northern Amazon lowlands, lying on the interfluvial plateau between the Rio Negro and the Solimões, almost entirely within Brazil with small reaches into Colombia and Venezuela. The terrain mixes tall terra firme (dry-land) forest with seasonally flooded várzea along whitewater rivers, igapó along nutrient-poor blackwater rivers, and patches of campinarana on white-sand soils, drawing on families such as Fabaceae, Sapotaceae, Lauraceae, and Annonaceae and including the Brazil nut tree (Bertholletia excelsa) and Mauritia palms. The climate is hot and humid, with mean monthly temperatures around 26 to 27 degrees Celsius and roughly 2,500 millimetres of rain falling in a well-defined wet season, while floodwaters near Manaus can rise many metres and linger for months. The region remains largely intact and lightly deforested, sheltering jaguars, tapirs, capybaras, Amazon river dolphins, and manatees, and is safeguarded by reserves such as Jaú National Park and the Mamirauá and Amanã Sustainable Development Reserves. For gardeners, its native Mauritia palms are striking ornamental and economic plants of tropical wetlands.
Marker placed inside the RESOLVE 2017 polygon at 2.2°S, 62.8°W.
Climate snapshot for this ecoregion
°C
°F
Current zone range (2011–2040)
13b
Plotwright
CHELSA-derived typical winter month at this ecoregion's bbox grid.
Projected (2041–2070)
13b
Plotwright
Where the CHELSA models say the typical winter month is heading.
Average warming this ecoregion is on track for: +4.0°F by mid-century. SSP3-7.0 (current trajectory) · CHELSA v2.1 bio06 sampled across 10 of 10 points within this ecoregion's bounding box.
At a glance
Dominant biome
Tropical & Subtropical Moist Broadleaf Forests
Realm
Neotropic
Approximate area
104,132 sq mi
Conservation tier
Half Protected (Dinerstein NNH 1)
About the tropical & subtropical moist broadleaf forests biome
Warm, wet, highly productive forests — including tropical rainforests — with closed canopies, near year-round growing seasons, and the richest terrestrial biodiversity on Earth. Low seasonality and high rainfall sustain dense, layered vegetation from canopy to forest floor.
Catalog plants suited to this ecoregion
No catalog plants intersect this ecoregion's zone range. As the catalog grows to cover this region's climate band, suggestions will surface here.
Collections for this ecoregion
No curated collection's plants all fit this ecoregion's zone range. We surface a collection only when every member would grow here — partial fits get filtered out rather than mislead. As the catalog and the curated set both grow, this section will fill in.
Related ecoregions
Other tropical & subtropical moist broadleaf forests ecoregions to explore: