Return to <Emphasis Type="Italic">Neverland</Emphasis>: Shifting Baselines Affect Eutrophication Restoration Targets |
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| Authors: | Carlos M Duarte Daniel J Conley Jacob Carstensen María Sánchez-Camacho |
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| Institution: | 1.Instituto Mediterráneo de Estudios Avanzados, IMEDEA (CSIC-UIB),Esporles,Spain;2.GeoBiosphere Science Centre, Department of Geology,Lund University,Lund,Sweden;3.National Environmental Research Institute, Department of Marine Ecology,Aarhus University,Roskilde,Denmark |
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| Abstract: | The implicit assumption of many scientific and regulatory frameworks that ecosystems impacted by human pressures may be reverted
to their original condition by suppressing the pressure was tested using coastal eutrophication. The response to nutrient
abatement of four thoroughly studied coastal ecosystems that received increased nutrient inputs between the 1970s and the
1980s showed that the trajectories of these ecosystems were not directly reversible. All four ecosystems displayed convoluted
trajectories that failed to return to the reference status upon nutrient reduction. This failure is proposed to result from
the broad changes in environmental conditions, all affecting ecosystem dynamics, that occurred over the 30 years spanning
from the onset of eutrophication to the reduction of nutrient levels. Understanding ecosystem response to multiple shifting
baselines is essential to set reliable targets for restoration efforts. |
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