Category Archives: Peer reviewed literature

Odd ordination of the day

Your challenge is to identify half a dozen unexpected features in this Detrended Constrained Correspondence Analysis from Larocque-Tobler (2010). Bonus points if you can interpret the last two sentences of the caption.

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Abstract abstracts

So I am searching through the Web of Science for papers reporting 11 yr (Schwabe) cycles in palaeoproxy data (especially tree-rings) when I find this title, which looks promising: LUNI-SOLAR 18.6-YEAR AND SOLAR-CYCLE 10-11-YEAR SIGNALS IN CHINESE DRYNESS WETNESS INDEXES … Continue reading

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“Fossil Insect Study Suggests That Los Angeles Climate Has Been Relatively Stable for at Least 50,000 Years”

So sayeth the press release. But what about the paper, and the 182 beetles sampled from La Brea tar pits? Fossil preservation in the tar pits is exceptional, but the constant stream of gas through the tar deposits mixes the … Continue reading

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Are Tibetan chironomids mesmerised by solar variability?

It’s been a while since I examined a paper that purports to present palaeoecological evidence for a climate response to solar variability. But last night, flicking through the recently published papers in Quaternary Science Reviews, I came across Zhang et … Continue reading

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Chironomid vs pollen: Holocene climate change in southern Europe

Pollen-inferred summer temperature reconstructions from southern Europe show cool early-Holocene summers and warmer late-Holocene summers (Davis et al 2003, Mauri et al 2015). In contrast,  warm early-Holocene summers are reconstructed elsewhere in Europe and most of the mid-high latitude Northern … Continue reading

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why would anyone not trust the author????

I have already shown that ordinations of the Lake Żabińskie fossil assemblages are weirder than you ever imagined possible. Now it is time to look at figure 2 of Larocque-Tobler et al (2015) which shows an ordination of the chironomid … Continue reading

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The breakpoint is broken and other tales from the comment on Lyons et al

A few weeks ago, Nature finally published the comment I wrote with colleagues on Lyons et al (2016). In this post, I explore some of the details that did not fit into the constraints of a 1200 word comment, and … Continue reading

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