Tag Archives: chironomids

Reproducibility of high resolution reconstruction – one year on

Posted on 11/10/2020 by richard telford

It is about a year since my paper discussing the reproducibility of high resolution reconstructions was finally published, so I thought I should give a full account of what has happened since. Nothing. None of the authors of the papers … Continue reading →

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Erroneous information … was given

Posted on 23/11/2019 by richard telford

By coincidence, days after I wrote about the apparently very low midge counts in Hiidenvesi, the authors published a correction. Erroneous information considering Chironomidae and Chaoboridae accumulation was given in Figure 4 published in Luoto et al. (2017). Therefore, it … Continue reading →

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Count sums – the preprint

Posted on 02/09/2019 by richard telford

I wandered lonely as a cloud That floats on high o’er vales and hills, When all at once I saw a crowd, A host, of golden chironomids; Beside the lake, beneath the trees, Fluttering and dancing in the breeze. Continuous … Continue reading →

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Count-less chironomids?

Posted on 01/09/2019 by richard telford

Most papers that present microfossil assemblages report (not always accurately) the minimum number of microfossils that were counted in each sample, an important indicator of the precision of the data. Some do not. For these papers, the reader should be … Continue reading →

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Chironomids are cunning wee beasties

Posted on 09/09/2018 by richard telford

Since I had examined almost every aspect of the data from the remarkable Lake Żabińskie chironomid-inferred August air temperature reconstruction, some time last summer I thought that I would, for completeness, have a quick look at the instrumental temperature data. … Continue reading →

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Low chironomid counts from Lake Muzzano

Posted on 27/08/2018 by richard telford

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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The third chironomid calibration-in-time reconstruction

Posted on 23/07/2018 by richard telford

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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Extracting data from a PDF image

Posted on 26/06/2018 by richard telford

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

Posted on 20/06/2018 by richard telford

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 →

Posted in Misconduct, Peer reviewed literature | Tagged | 3 Comments

My presentation to IPA-IAL 2018

Posted on 19/06/2018 by richard telford

I’ve just given a presentation at the joint IPA-IAL conference in Stockholm Sub-decadal resolution palaeoenvironmental reconstructions from microfossil assemblages Download it! The deadline for applying for a reward for finding typos has expired.

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