Trophic cascades triggered by overfishing reveal possible mechanisms of ecosystem regime shifts
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چکیده
منابع مشابه
Trophic cascades triggered by overfishing reveal possible mechanisms of ecosystem regime shifts.
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 ...
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Jonathan B. Shurin*, Elizabeth T. Borer, Eric W. Seabloom, Kurt Anderson, Carol A. Blanchette, Bernardo Broitman, Scott D. Cooper and Benjamin S. Halpern National Center for Ecological Analysis and Synthesis, University of CaliforniaSanta Barbara, 735 State St., Suite 300, Santa Barbara, CA 93101, USA Department of Ecology, Evolution, and Marine Biology, University of CaliforniaSanta Barbara, S...
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Fisheries can have a large impact on marine ecosystems, because the effects of removing large predatory fish may cascade down the food web. The implications of these cascading processes on system functioning and resilience remain a source of intense scientific debate. By using field data covering a 30-year period, we show for the Baltic Sea that the underlying mechanisms of trophic cascades pro...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2007
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0701100104