2. Most organisms are rare now. The only abundant organisms are birds, jellyfish, worms/amphipods, floating algae, and microbes.
3. No, most of the groups were rare in the previous food web. The only group that was abundant was the bird group. All of the other organisms were rare in the previous pre-human food web.
4. Yes, it looks like at the top predators were affected, although some of the lower trophies species have been badly affected too.
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