AP BIOLOGY

Detailed explanation-1: -Deforestation and Habitat Loss Illegal logging inside protected areas and unsustainable logging in concessions where orangutans live remains a major threat to their survival. Today, more than 50% of orangutans are found outside protected areas in forests under management by timber, palm oil and mining companies.

Detailed explanation-2: -Wild orangutan populations are under threat from extensive habitat loss and land use change due to logging, palm oil production, mining and agricultural expansion.

Detailed explanation-3: -Nearly 150, 000 of these great apes died between 1999 and 2015, largely due to deforestation and killing, according to a 2018 study. That study also projected that habitat loss would lead directly to the total future loss of 45, 300 orangutans between 2020 and 2050.

Detailed explanation-4: -Threats. Orangutan numbers and distribution have declined rapidly since the middle of the 20th century, due to human activities. These include hunting, unsustainable and often illegal logging, mining, and conversion of forests to agriculture.