Juruá-Purus Moist Forests Ecoregion (Brazil)

Juruá-Purus Moist Forests Ecoregion (Brazil)

Tue, 07/19/2022 - 22:06
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The Juruá-Purus Moist Forests ecoregion is located in northwestern Brazil to the south of the Solimões or upper Amazon River. It is part of the Amazon Biome and is mostly covered with evergreen tropical rainforests with a dense high canopy.

Juruá-Purus Moist Forests

The Juruá-Purus Moist Forests ecoregion is located in northwestern Brazil to the south of the Solimões or upper Amazon River. The ecoregion covers the valleys between the westernmost Amazon River to the Purus River. It is part of the Amazon Biome and is mostly covered with evergreen tropical rainforests with a dense high canopy.

This area lies entirely along the Amazon Basin and the terrain consists of flat forested plains dissected by large rivers and thousands of tiny streams, all of which flood annually. It has an area of approximately 24,000,000 ha (60,000,000 acres) and is bounded to the north, east and south by the Purus várzea ecoregion. To the west, it adjoins the Southwest Amazon moist forests.

The Juruá–Purus moist forests ecoregion is in the Neotropical realm and the tropical and subtropical moist broadleaf forests biome. It is part of the Southwestern Amazon Moist Forests global ecoregion, which also includes the Southwest Amazon moist forests, Purus-Madeira moist forests and Madeira-Tapajós moist forests.

Juruá-Purus moist forests map

Map of the Juruá-Purus moist forests (purple)

Flora and Fauna

The Juruá-Purus Moist Forests ecoregion is made up primarily of evergreen tropical rainforests with a dense high canopy. The most important tree families in these forests are the legumes, evergreens, woody fruiting trees, fig trees, flowering trees, aromatic evergreens, palms and nutmeg trees.

The Juruá-Purus forests have a very high floristic diversity. The diversity of members of the flowering tree family, Sapotaceae, is unequaled elsewhere in the Amazon lowlands, with 60 species present. There is a high diversity of timber species.

The fauna found in the ecoregion is also very diverse with a high occurrence of endemism. Of the 171 mammals recorded in this ecoregion, nearly 120 have been recorded at a single site at the headwaters of the Urucu River.

Vagrant mammals that travel between flooded and non-flooded forests include squirrel monkeys, brown pale-fronted capuchins, woolly monkeys and collared peccaries. Other species do not traverse the rivers, which causes separate subspecies of some primates and insects.

The ecoregion's avifauna includes 554 species. This includes seasonal migrant birds such as toucans, large amazon parrots and macaws. Local species include tanagers, woodcreepers, pavonine quetzals, curassows and tinamous.