Trophic cascades triggered by overfishing reveal possible mechanisms of ecosystem regime shifts.

@article{Daskalov2007TrophicCT,
  title={Trophic cascades triggered by overfishing reveal possible mechanisms of ecosystem regime shifts.},
  author={Georgi M. Daskalov and Alexander Grishin and Sergei N. Rodionov and Vesselina Mihneva},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2007},
  volume={104 25},
  pages={10518-23}
}
Large-scale transitions between alternative states in ecosystems are known as regime shifts. Once described as healthy and dominated by various marine predators, the Black Sea ecosystem by the late 20th century had experienced anthropogenic impacts such as heavy fishing, cultural eutrophication, and invasions by alien species. We studied changes related to these "natural experiments" to reveal the mechanisms of regime shifts. Two major shifts were detected, the first related to a depletion of… CONTINUE READING
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