Wildlife and Reforestation in Brazil

The once vast Atlantic Forest in Brazil has been reduced to less than one sixth of its former size.

The Serra dos Órgãos mountain range of Rio de Janeiro State creates an amazing landscape of spectacular ridges, valleys, and lowlands, stretching from magnificent mountain summits to mangrove forests on the coast. The Reserva Ecológica de Guapiaçu (REGUA) is nestled into the lowlands of these mountains, and is home to a unique wealth of biodiversity. REGUA houses at least 60 mammal species, including the elusive Southern Woolly Spider Monkey and the puma.

These breathtaking forested mountains and the unique animals that live within them are under incredible strain. Only 15% of the original forest still stands, and what does remain is very fragmented and disconnected. To combat this decline and to safeguard the area’s biodiversity, Brazil’s government, conservation organizations, and NGOs have invested in large-scale reforestation efforts. While these efforts are urgently needed, they should be based on strong scientific data to ensure that the way the area is reforested restores both species use and ecosystem services.

On this project, you will investigate small, medium, and large mammals in REGUA, from the common Southern Four-eyed Opossum to the rarely-seen puma. Using both live traps for small to medium animals and camera traps for larger animals, you will collect information about how the mammals of the reserve are responding to reforestation efforts. This project will actively contribute data to the management plan of REGUA, and will produce technical reports for reforestation decision makers. Additionally, you will aid in reforesting the reserve, helping to grow seedlings and planting them within the forest. Your time in the reserve is limited, but the trees you plant will be protected and may stand for decades to come.

For more information or to book contact our office (03) 9016 7590 or email This email address is being protected from spambots. You need JavaScript enabled to view it.


  • Activity Level: Very Active
  • Location: Reserva Ecológica de Guapiaçu- REGUA, Cachoeiras de Macacu, Rio de Janeiro, Brazil
From $2,175 USD
Duration: 7+ days

Sign up for our newsletter

About Us

T (03) 9016 7590
This email address is being protected from spambots. You need JavaScript enabled to view it.

Earthwatch Institute Australia is a registered charity. Donations of $2 or more are tax-deductible.

ABN 25 875 253 851

Earthwatch Australia acknowledges the Aboriginal and Torres Strait Islander peoples of this nation. We acknowledge the traditional custodians of the lands on which our company is located and where we conduct our business. We pay our respects to ancestors and Elders, past and present.

Earthwatch Australia is committed to honouring Aboriginal and Torres Strait Islander peoples’ unique cultural and spiritual relationships to the land, waters and seas and their rich contribution to Australian and global society. We recognise that sovereignty over these lands and waters was never ceded

© 2023 Earthwatch Institute. All rights reserved.