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Where We Work

ACG biodiversity: Ecosystems, species
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Isla San Jose

We work in a place of outstanding biodiversity and beauty in northwest Costa Rica called Área de Conservación Guanacaste (ACG). Home to 2.6% of the world's terrestrial biodiversity, ACG is the only protected area in the Neotropics that sweeps from Pacific Ocean waters up over the volcanic mountain range of the continental divide and down into the lowlands of the Atlantic rain forest. The Guanacaste Dry Forest Conservation Fund (GDFCF) was formed to aid with the development, protection, and sustainability of ACG.

ACG is an area of remarkable contrast: volcanoes; islands; rain forest; dry forest; coral reefs; plus, birds, insects — of all shapes, colors and sizes — and mammals — large and small cats, peccaries, tapirs, anteaters, sloths, whales, dolphins, sharks, crocodiles, iguanas, and courting rays — 375,000 species of them. It is part of major and varied migration routes, including: north-south (whales, birds), east-west (moths, butterflies, wasps, flies, dragonflies, birds), lowlands-cloud forests (butterflies, moths, wasps, flies, birds), and sea to land (turtles).

ACG is an 169,000-hectare (~ 417,000 acres) national park being restored from land and sea remnant habitats. Its topography, size, and ecosystem variability is designed to protect its biodiversity from humanity while being used in a non-damaging way, and — to the extent possible — protect it from the ravages of climate change.

ACG is a green jewel in a green country, part of the Sistema Nacional de Areas de Conservación (SINAC) of the Costa Rican Environment Ministry (MINAE), but with a novel administrative structure. Its public-private collaboration with the GDFCF integrates government security with mission-directed flexibility. ACG supplies clean air and water, bioliteracy, and 150 high-quality rural biodiversity management and development jobs to its neighboring communities on a $4 million annual budget, supplemented by aid from GDFCF, its not-for-profit partner.

ACG is a 38-year-old pilot project for restoration and conservation of tropical biodiversity into perpetuity, through innovation, collaboration, science, and home-grown understanding of the natural world. As such, ACG programs and projects with GDFCF are highly regarded across the global tropical conservation and science community.