Final answer:
Bush meat hunting is unsustainable for primates and large-bodied duikers due to high harvest rates and commercialization causing threats to their populations, particularly in the Congo basin.
Step-by-step explanation:
The hunting of bush meat, which refers to the practice of killing wild animals for food, has traditionally been a method for families in equatorial Africa and parts of Asia to provide sustenance. However, with the commercialization of bush meat, harvesting rates have surged to unsustainable levels, causing a significant threat to wildlife populations, particularly the primates and large-bodied duikers.
In the Congo basin, many monkeys, great apes, and other mammals are seriously threatened by hunting for bush meat. Studies have shown that unregulated commercial hunting is unsustainable, leading to a decrease in animal populations from 1640 kg/km² in unhunted sites to only 89.2 kg/km² in heavily hunted sites. As a result, slower-breeding species being more vulnerable are often eliminated and predated by faster-breeding and more resilient species. Currently, hunting in some regions may only be sustainable for smaller species such as rodents and small antelopes, following the extinctions of larger game including large duikers and primates.