Category Archives: Peer reviewed literature

Low chironomid counts from Lake Muzzano

I am aware of at least 10 papers authored by Dr Larocque-Tobler where there is good evidence that the chironomid count sum has been misreported (a corrigendum to one of these papers admits that a count sum of 19 was misreported … Continue reading

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A mean wind blows over Lake Żabińskie

I have largely neglected the chrysophyte-inferred reconstructions of winter severity and summer calcium concentrations/zonal wind speed from Lake Żabińskie even though they fall within the scope of my review of sub-decadal resolution reconstructions. This is not because I think this … Continue reading

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Pollen from the garden of forking paths

Most transfer functions for reconstructing past environmental changes are based on a calibration-in-space approach, with a modern calibration set of paired microfossil assemblages and environmental data. The alternative approach is calibration-in-time, with well-dated fossil assemblages and contemporaneous environmental data. I’ve … Continue reading

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The third chironomid calibration-in-time reconstruction

Most reconstructions of past environmental conditions derived from chironomid assemblages with transfer functions use a calibration-in-space approach, in which the calibration is a set of modern chironomid assemblages paired with modern environmental data. I am aware of three chironomid calibration-in-time … Continue reading

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The tangled web of Silvaplana papers

I’ve not written much about the Lake Silvaplana papers although they are as questionable as the Seebergsee and Zabinskie papers. I have now digitised the 150-year stratigraphy, my request to the authors for the data having been ignored. Together with … Continue reading

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Extracting data from a PDF image

Some scientists archive their data. Some scientists email their data on request. Some editors cajole authors into releasing data to interested parties. And sometimes none of these approaches yields data. What then? One option is to request data via the … Continue reading

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More trouble counting to fifty

Earlier this week at the palaeolimnology symposium, Gavin told me that it had not dawned on him that the count sum could be estimated from percent data using our knowledge of rank abundance curves. I only recently realised this; previously … Continue reading

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Warm summers in the Younger Dryas?

The Younger Dryas was a period (12,900–11,600 BP) towards the end of the last glaciation when glaciers re-advanced in Scotland and the tundra plants, including the eponymous Dryas, replaced the Bølling-Allerød forests in Denmark. These changes indicate the Younger Dryas was … Continue reading

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Sub-decadal resolution reconstructions

I’m putting together my review of sub-decadal resolution reconstructions from microfossil assemblages and thought I ought to check if I have missed any. The criteria are: Palaeoenvironmental reconstruction from microfossil assemblages Sub-decadal resolution – at least one fossil sample per … Continue reading

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A paper with insufficient and misleading information

Sometimes papers reporting transfer functions don’t give enough information for the reader to properly evaluate the model. Take for example Massaferro and Larocque-Tobler (2013) who report a chironomid-based mean annual air temperature transfer function for Patagonia and its application to … Continue reading

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