MUSANZE, Rwanda (AP) — A guide called out to endangered golden monkeys with grunts and clicks to signal he posed no threat, a familiar sound in the mist-covered forests of Rwanda ’s Volcanoes National Park.Here in one of Africa’s most well-known parks, steep ridges and dense vegetation often obscure even the largest mountain gorillas — also endangered — and scientists are turning to new technology to detect and protect them.Known as environmental DNA, or eDNA, the technology allows researchers to identify species using genetic material like fur or feces left in soil and water. This reduces the impact of human interaction during wildlife surveys that can leave researchers groping through the mist.The technology, more often used in marine conservation work, was introduced by the African Wildlife Foundation in partnership with the Rwandan government. It aims to develop a list of all species in the country. That will help protect biodiversity that is threatened by climate change and population growth.
“We selected eDNA as a new technology to bring solutions and to complement existing methods used in ecological monitoring,” said the foundation’s country manager for Rwanda, Patrick Nsabimana.










