Mention the major threats to biodiversity caused by human activities.

Explanation

Human activities, both directly and indirectly are today.s main reason for biodiversity loss. Fragmentation and degradation due to agricultural pract (mining, fishing, logging and harvesting) and development (settlements," associated infrastructures) leads to habitat loss and fragmentation leads to isolated, small and scattered populations and as endangered species.
Some of the other threats include specialised diet, specialized habitat require small population size, limited geographic distribution and high economic value. Large mammals by virtue of their size require larger areas to obtain life - food, cover and mates than do smaller mammals. Individual home range about 100 square Km. Mammals have specialized dietary needs such as carn and the need to forage over much larger areas than general dietary herbivorce Mammals also have low reproductive output other than small rodents.