• photo: Carlos R. Garcia

    Costa Rica: Preventing Ecosystem Collapse on the Osa Peninsula: a Citizen-science based surveillance alliance

In Brief

Location:

Osa Peninsula, southwest Costa Rica

Goal:

To increase ecosystem resilience by restoring apex predator and prey populations and habitat connectivity in the Osa Peninsula

Conservation Value:

The Osa Peninsula contains the largest mesic rainforest remaining on the Pacific slope of Central America, largely within Corcovado National Park. It also has the largest expanse of mangrove wetlands on the Pacific slope of Central America and a unique coastal marine ecosystem—the Golfo Dulce tropical fjord.  The Osa Peninsula is hotspot for biological diversity. It is estimated to house 2.5% of the world’s biodiversity while covering less than 0.001% of its total surface area, and was described by National Geographic in 2016 as “the most biological intense place on earth”.

Threats:

The main threat in the Osa Peninsula is illegal hunting, which is still prevalent in the region.  The concern is greatest with respect to the lowland paca (Cuniculus paca), white-lipped peccary (Tayassu pecari), and collared peccary (Pecari tajacu). Many other species are also hunted to a lesser degree, including game birds such as: tinamou (Tinamus major and Tinamus major castaneiceps) and great curassow (Crax rubra).  Research has identified key areas of hunting pressure in the region, however no concerted effort yet been made to reduce or eradicate illegal hunting on the peninsula. A recent presentation at the 21st Mesoamerican Congress in San Jose, Costa Rica in 2017 revealed that bushmeat offtake could be around 28.5 kg per year, for each family hunting in the peninsula.

photo: Juan Carlos Cruz Diaz

Actions & Results:

Led by our partner Osa Conservation, we have a big plan: Osa SAFER (Osa Surveillance Alliance for Ecosystem Resilience) is a holistic approach to protect and support biodiverse ecologically self-sustaining ecosystems through a scientific region-wide surveillance initiative, education, and strategic alliances to promote a change in perceptions, information dissemination, and behavioural change at the local level. The project will use citizen science and rewilding techniques and will involve collaboration with government, other conservation organizations and ecotourism operators.

Project Field Partner:

Osa Conservation

Size of Area Involved:

1,093 km² (about the size of Cape Breton Highlands National Park)

Cost:

2018 commitment from ICFC: $114,050

A photographer captures a juvenile tapir on the beach. photo: Carlos R. Garcia

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