The brown tree snake was accidentally introduced to the island of guam during world war ii. since then, this snake has caused the extinction of twelve native bird species by eating their eggs and young. one negative result of this snake’s introduction was most likely
1. an increase in diversity as new species evolved to replace extinct species
2. an increase in mosquitoes due to an increase in bird species in the environment
3. a disruption of food chains and food webs in guam’s ecosystems
4. an abundance of brown tree snakes as a food source for humans