Author Archives: richard telford

About richard telford

Ecologist with interests in quantitative methods and palaeoenvironments

Chironomid assemblage change in Seebergsee

Palaeoecology could, to a large extent, be described as the study of changes in fossil assemblages: what we can learn from changes in foraminifera assemblages over the last interglacial cycle, from palynological assemblages as Neolithic agriculture spread across Europe, or … Continue reading

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The European Pollen Database meets SQLite

The European Pollen Database is a fantastic resource for palaeoecologists, storing pollen stratigraphies from across the continent. Getting the data into R for analysis is facilitated by the EPDr package. However, first you need to set up the database and … Continue reading

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Been scooped? A discussion on data stewardship

  At Climate of the Past, there is a pre-print by Darrell Kaufman and others on the data stewardship policies adopted by the PAGES 2k special issue. Abstract. Data stewardship is an essential element of the publication process. Knowing how … Continue reading

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A failed attempt to reproduce two ordinations

To examine the millennium-long chironomid-inferred air temperature reconstruction from Seebergsee (Larocque-Tobler et al 2012) is, after having shown that the calibration-in-time reconstruction for the upper section of the core (Larocque-Tobler et al 2011) has no skill, to flog the proverbial … Continue reading

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Reviews of another manuscript

After last night’s premature excitement about reviews being ready for my review of high-resolution reconstructions, today I received reviews of a different manuscript. It includes this: 4. The authors applied high-end modern statistics and gave full reference. However, their analyses … Continue reading

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Reviews are in

An email this evening informs me that the reviews of my manuscript discussing the challenges of validating reconstructions derived from microfossil assemblages with instrumental data, and the particular problems with several chironomid-based reconstructions, are now ready. But since I wish … Continue reading

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Heavy weather at Seebergsee

Larocque-Tobler et al (2011) compare their chironomid-inferred reconstructions of July air temperature with instrumental data from Château-d’Oex, a climate station with continuous temperature data from 1901. Château-d’Oex is located less than 30km from Seebergsee (Larocque-Tobler et al (2011) report 50km), … Continue reading

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