Nepedia
Back to Discover
Advanced Reader
🗺️

Jaú National Park

geography Maturity 11-13 Next article →

Jaú National Park is a massive protected area located in the state of Amazonas, Brazil. It serves as one of the largest forest reserves in South America. This park is part of a much larger World Heritage Site. It protects a unique Amazonian black water ecosystem. The park is managed by the Chico Mendes Institute for Biodiversity Conservation. Its primary goals include environmental education and scientific research. It also supports interaction with local communities and sustainable tourism. This mega-reserve is designed to protect nature for both present and future generations.

The park's name comes from a specific animal. The gilded catfish, or jau (Zungaro zungaro), is one of the largest fish in Brazil. The main river in the park is named after this fish. Geographically, the park sits within the Amazon biome. Specifically, it is in the Japurá-Solimões-Negro moist forests ecoregion. The park covers a massive area of 2,270,000 hectares. It spans across three different municipalities: Barcelos, Codajás, and Novo Airão. It is located northwest of the city of Manaus.

The geography of the park is defined by its river systems. It contains the entire Jaú River basin. This basin is located between the Unini River to the north and the Carabinani River to the south. Both of these rivers, along with the Jaú, flow east. They eventually enter the right bank of the Rio Negro. The park has several neighbors. To the northwest, it meets the Amanã Sustainable Development Reserve. To the east, it borders the Rio Unini Extractive Reserve. Near the Rio Negro, it touches the Rio Negro State Park North Section.

The terrain is representative of the Negro-Solimões interfluvial plateau. This landscape is divided into two distinct geological parts. The first is the Trombetas/Negro plateau. This higher area features hills with flat tops that are cut by deep valleys. The second part is the lower western Amazon plateau. This lower area has altitudes of about 100 meters. The park also contains large areas of seasonally flooded land. These areas have poor drainage and stay wet for parts of the year. Some lakes in the park are permanent and never dry up.

Climate plays a major role in shaping this environment. The average annual rainfall is over 2,300 mm. The wettest months are March and September. During these months, the area receives maximum short wave solar radiation. This heat causes maximum convectional rainfall. Temperatures are generally warm. They range from 23 to 27 degrees Celsius, with an average of 25 degrees Celsius. This constant warmth and moisture support a massive variety of life.

The vegetation is mostly dense rainforest, which covers 77% of the park. Open rainforest makes up 14% of the area. Another 7% is a transition zone between rainforest and campinarana. Campinarana, which is a specific type of forest, covers the remaining 2%. Botanists have catalogued about 400 plant species here. Some of these plants are restricted to specific environments. For example, some only grow in the uplands. Others only grow in the flooded areas. Scientists have also recorded 263 species of fish. Some of these fish are new to science.

Many famous and protected animals live within these forests and waters. You can find the jaguar (Panthera onca) and the margay (Leopardus wiedii) here. The waters are home to the giant otter (Pteronura brasellius) and the Amazonian manatee (Trichechus inunguis). The park is classified as an IUCN protected area category II. This means it is officially recognized as a national park. This status helps ensure the animals and plants remain safe from harm.

The history of the park involves many important conservation milestones. It was created by decree 85.200 on 24 September 1980. In 2000, UNESCO inscribed it as a World Heritage Site. In 2002, it became part of the Central Amazon Ecological Corridor. A major change happened in 2003 when the park expanded. It joined with Anavilhanas National Park and two reserves. These are the Amanã and Mamirauá Sustainable Development Reserves. Together, they form the Central Amazon Conservation Complex. Finally, in 2010, it became part of the Lower Rio Negro Mosaic.

687 words

Where will your curiosity go next?

Keep exploring at your chosen reading level.

More to explore

🔬 Go deeper

More advanced topics to explore

🪜 Step back

Simpler topics to build understanding

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.