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Scientists uncovered the nutrients bees were missing — Colonies surged 15-fold
(www.sciencedaily.com)
This is a most excellent place for technology news and articles.
What ecosystem collapses when removing a single creature? Are you talking about pre-holoscene extinction ecosystems? Or are you talking about modern ecosystems (after most of the original biodiversity has already been obliterated, and "removing one species" is actually thousands down on the list of removals)?