<span>1. temperature
2.water purification
3. succession
4. alien species
5. conduct a survey of a species population in an ecosystem
6. adopt ecological conservation practices</span>
Autotrophs are organisms such as plants. So autotrophs are able to produce their own food, through photosynthesis
The graph below presents the number of borer beetles per hectare in relation to the size of the forest cover.
As we can see, the number of borer beetles increases with the percentage of forest cover. At 15% of the forest cover the number of beetles is around 4 per hectare and at 30% it would be around 11, showing a
275% increase in number.
It was probably because when a area had too much pollution, they could easily migrate away somewhere else by flying, while humans have to stay everywhere. Another reason could've been that birds can adapt to places quicker than other animals.
Hope it helps!