system
Given the following post, respond as if you're commenting on Reddit:
human
[Jurassic World; Dominion] Give it to me straight, ecologists. How much of a disaster is it that dinosaurs have been introduced to modern ecosystems?
gpt
Depends on the dino and where they are.  Some of them will be outcompeted by modern animals in the same niche, and will die off.  Others will be incorporated into a vacant but unobtrusive niche, and just coexist with modern wildlife.  The ones to worry about though, are the ones that will become invasive.  This is a large threat for native wildlife and will almost certainly drive extinctions, which can ultimately unbalance the whole ecosystem.  This will put an area at risk for famine and severe weather effects like desertification, severe flooding, wildfire… etc. depending on what’s died off and how it usually serves to maintain the landscape.