Diatom flickering prior to regime shift

Jacob Carstensen (), Richard J. Telford and H. John B. Birks
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Jacob Carstensen: Aarhus University, Frederiksborgvej 399, DK-4000 Roskilde, Denmark
Richard J. Telford: University of Bergen, Thormøhlensgate 53 A, N-5006 Bergen, Norway
H. John B. Birks: University of Bergen, Thormøhlensgate 53 A, N-5006 Bergen, Norway

Nature, 2013, vol. 498, issue 7455, E11-E12

Abstract: Abstract ARISING FROM R. Wang et al. Nature 492, 419–422 (2012)10.1038/nature11655 Potential early warning signals for regime shifts are studied intensively in the field of ecology1,2,3,4. Wang and colleagues1 investigated changes in the sediment diatom composition of Lake Erhai, China, and concluded that a regime shift in diatom assemblages that occurred around 2001 was preceded by flickering behaviour for 10 to 30 years. We propose that their results may be more reflective of their data processing than of the diatom data. Although flickering behaviour before regime shifts may be observed in some palaeoenvironmental records, we question whether this behaviour applies to diatoms in Lake Erhai. There is a Reply to this Brief Communication Arising by Wang, R. et al. Nature 498, http://dx.doi.org/10.1038/nature12273 (2013).

Date: 2013
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DOI: 10.1038/nature12272

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