Hope this helps you^^^^ 67% 2 Votes
but I assume you%26#039;re looking for the environmental aspect since you mention the ecosystem. I learned in class that part of the environmental problem was that these people cut down a lot of the trees, and resources, didn%26#039;t think about sustainablility in the long run. So as things got worse they also had less resources to work with, until the numbers completely dwindled.
Hope this helps a little. Can%26#039;t help with polynesian part, since I%26#039;m not. 33% 1 Vote