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Tag Archives: Larocque-Tobler et al (2015)
Chironomids are cunning wee beasties
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
Posted in Peer reviewed literature, transfer function
Tagged chironomids, Larocque-Tobler et al (2015)
1 Comment
My presentation to IPA-IAL 2018
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.
Posted in climate
Tagged chironomids, diatoms, Larocque-Tobler et al (2015), reproducible research
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Air temperature, lake temperature
I’m interested in lake temperatures because I want to go swimming. I’m also interested because some palaeolimnological proxies, for example chironomids, are probably most sensitive to water temperature but are calibrated against and used to reconstruct air temperature. The stronger … Continue reading
Posted in transfer function
Tagged chironomids, lake temperature, Larocque-Tobler et al (2015)
2 Comments
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
Posted in Peer reviewed literature, transfer function
Tagged chironomids, Larocque-Tobler et al (2015)
2 Comments
73 lakes become 78
I have detailed many curious aspects of the remarkable Lake Żabińskie August air-temperature reconstruction by Larocque-Tobler et al (2015). This posts describes yet more – this time in Supplementary Data Figure 1 which shows a redundancy analysis (a type of … Continue reading
Posted in Peer reviewed literature, transfer function
Tagged chironomids, Larocque-Tobler et al (2015)
7 Comments
The Humpty Dumpty theory of palaeoecology
“When I use a proxy,” Humpty Dumpty said, in rather a scornful tone, “it means just what I choose it to mean – neither more nor less.” “The question is,” said Alice, “whether you can make a proxy mean so … Continue reading
Replicating the Lake Żabińskie reconstruction
Having shown that the archived chironomid data from Lake Żabińskie are strange in several ways and have bad reconstruction diagnostics, I want to see how well I can replicate the August air-temperature reconstuction. First, I need to build the transfer … Continue reading
Low calibration set counts in LT15
Larocque-Tobler et al (2015) promised that, for their chironomid calibration set At least 50 head capsules (Heiri et al., 2001 and Larocque et al., 2001) were mounted. A cursory examination of the data shows that this is unlikely to … Continue reading
Posted in Peer reviewed literature, Uncategorized
Tagged chironomids, Larocque-Tobler et al (2015)
3 Comments
The missing rare taxa at Żabińskie
“rarity is the attribute of a vast number of species of all classes, in all countries.” Charles Darwin In any census of any species-rich community, the rarest taxa are likely to be represented by a single individual. This can be … Continue reading
Posted in Peer reviewed literature, Uncategorized
Tagged chironomids, Larocque-Tobler et al (2015)
3 Comments
The importance of version control
Perhaps the most contentious scientific argument of the early twenty-first century concerns whether “data” is plural or singular. To accidentally say “data is” at a prestigious conference is to lob a metaphorical lettuce into the traditionalist audience. Submit a manuscript … Continue reading
Musings on Quantitative Palaeoecology 