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Date: | Sat, 4 Mar 2023 10:08:51 -0500 |
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>> While it may be temping to seek any possible "alternate explanation" so as to deny the problem at hand,
> An odd suggestion that I might be a "climate denier"...
Posts on Bee-L are not directed towards individuals, but to issues.
No "climate denier" stance was presented.
The post merely misrepresented the paper, claiming an "alternate explanation for the difference between contemporary and historic data" when there was no difference to be concerned about.
This the study at hand, two separate datasets were analyzed, and they agreed:
a) observations from museum specimens covering 117 years from the southernmost region in Sweden (Scania)
b) citizen-reported observations during the past 20 years across Sweden
The data showed (quoting the paper):
"We found that, in **both datasets**, the flight period of spring bumblebees has shifted markedly over time and in relation to temperature."
The out-of-context statement addressed the obvious - that rare species will be rarely sighted and rarely reported by citizen scientists. This is very true, as they are not grad students that one can pay and order to keep at it until they DO sight the uncommon species, hence the statement in the paper:
"there are many uncertainties surrounding rare species trends, since these are less abundant and perhaps not detected by observers."
So, the prior post pointed out the inherent and obvious (there will always be less data on uncommon species unless we make a special extra effort to gather some) as if it was a "difference between the data" that had impact on the findings. The findings were still consistent, there just wasn't data on some rare species in the citizen dataset, so not EVERY known species was included.
But there was no impact on the findings.
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