Environmental Science 15th Edition by Scott Spoolman,Tyler Miller

تمرين 16

Summarize the roles of population growth, overconsumption, pollution, and climate change in the extinction of wild species. Explain how concentrations of pesticides such as DDT can accumulate to high levels in food webs. List possible causes of the decline of European honeybee populations in the United States. Give three examples of species that are threatened by poaching. Why are wild tigers likely to disappear within a few decades? What is the connection between infectious diseases in humans and the pet trade? Describe the threat to some forms of wildlife from the increased hunting for bushmeat.