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Record nummer 2015002
Titel artikel Flickering gives early warning signals of a critical transition to a eutrophic lake state
Auteur(s) Wang, R. ; Dearing, J.A. ; Langdon, P.G. ; Zhang, E. ; Yang, X. ; Dakos, V. ; Scheffer, M.
Tijdschrifttitel Nature : international journal of science
Deel(Jaar)Nummer 492(2012)7429
Paginering 419 - 422
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Trefwoorden (cab) aquatische ecologie / oppervlaktewaterkwaliteit / meren / eutrofiëring / algen / toestandsverandering / overgangselementen / interacties / china
Rubrieken Waterkwaliteit / Aquatische ecologie
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Studies of mathematical and experimental systems have shown that systems may ‘wobble’ before a critical transition. Such early warning signals may be due to the phenomenon of critical slowing down, which causes a system to recover slowly from small impacts, or to a flickering phenomenon, which causes a system to switch back and forth between alternative states in response to relatively large impacts. This study uses long-term data from a real system, a Chinese lake, to show that flickering can be observed and that it occurs up to 20 years before a critical transition — in this case the deterioration of a lake towards a dead 'eutrophic' state as algal growth consumes the last available oxygen.
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