[Mitarbeiter.zoologie] Antw: Positive Correlation between Pesticide Consumption and Longevity in Solitary Bees

[Julia Osterman]

Good idea! So, those interested to join the discussion see you on Friday!
I am happy to present the data shortly.

Julia


Robert Paxton <robert.paxton at zoologie.uni-halle.de> schrieb am Mi., 25.
Nov. 2020, 14:21:

> Dear Julia,
>
> One option is to have a discussion about the paper after the lab meeting
> on Friday, in which Andreia will present.
>
> Yours,
>
> Robert
>
>
> On 25 Nov 2020, at 08:17, Julia Osterman <jul.osterman at gmail.com> wrote:
>
> Dear all, Hi Ecki,
> I was reading the article this morning and I must say, I am quite upset.
> But, I think first of all their statistical analysis looks to me robust and
> they exclude "non-feeders", so that should be fine.
>
> However, their title, their abstract, and their conclusions from what they
> find are to me misleading. Especially in Corona times, we as researchers
> should have realised how important it is to clearly communicate our
> findings, as many journalists are not trained to be able to correctly
> interpret papers. Anyway, my critics are the following and I almost think
> we should write a response letter.
>
> Their findings are*: NO differences* between treatment groups on
> survival. This means the insecticide nor the herbicide nor the combination
> reduced survival compared to the control group. As a consequence, I would
> have chosen a title representing this result, as to me it seems like that
> was the reason to make this study.
>
> They also find no difference between treatment groups on how much the bees
> have eaten BUT they find that *body size *affected how much the mason
> bees ate: "*however, emergence mass had a significant positive effect on
> consumption with heavier bees consuming more sucrose-solution*". This
> means those bees that were bigger ate more. And then they tested if
> consumption affected longevity and in all groups, they find a positive
> correlation between consumption and longevity. IN ALL. No difference
> between treatment groups again. To me, this means either bees that eat a
> lot survive longer or those that are bigger survive longer, no matter if
> they got a pesticide or not. But in the abstract, the authors write: "*As
> no significant difference in daily food consumption were observed across
> treatment groups, increasing food intake can be excluded as a factor
> leading to prolonged survival.*" This is just against my logic but maybe
> I am wrong.
>
> Also, they write in the simple abstract that their data suggests a
> possibly neglected trade-off between survival and reproduction in insect
> toxicology. I don't see how they came up with this?
>
> Maybe I am wrong, but this paper is a good example of miss-interpretations
> of results.
>
> What do you think?
> Thanks, Andreia for sending it around!
> Julia
>
> Am Di., 24. Nov. 2020 um 19:30 Uhr schrieb Eckart Stolle <
> eckart.stolle at zoologie.uni-halle.de>:
>
>> looks like a nice paper for the connaisseurs of statistical fishing.
>>
>>
>> Probably any cloud of datapoints would give them a positive correlation
>> if they still include the bunch of non-eating weird ones.
>>
>> ... the headlines will be: "See! Whats we [Bayer] say? Pesticide are
>> even good for bees!"
>>
>>
>>
>> ================================
>> Dr. Eckart Stolle
>> Institut für Biology
>> Martin-Luther-Universität Halle-Wittenberg
>> Hoher Weg 8, 06120 Halle (Saale), Germany
>> eckart.stolle at zoologie.uni-halle.de
>> 0049 345 55 26502
>> Fax 0049 345 55 27428
>> ================================
>> >>> Andreia Teixeira <andreia.teixeira90 at gmail.com> 24.11.20 12.24 Uhr
>> >>>
>> Dear all,
>>
>> The paper attached may be of interest, probably some of you have seen it
>> already.
>>
>> Best,
>> Andreia
>> --
>>
>> PhD Student
>> Martin-Luther University
>> Institute of Biology
>> General Zoology Group
>>
>> Hoher Weg 8, 06120 Halle, Germany
>>
>>
>> _______________________________________________
>> Mitarbeiter.zoologie mailing list
>> Mitarbeiter.zoologie at lists.uni-halle.de
>> https://lists.uni-halle.de/cgi-bin/mailman/listinfo/mitarbeiter.zoologie
>>
>
>
> --
> Julia Osterman
> PhD candidate
> General Zoology
> Martin-Luther University Halle-Wittenberg
> jul.osterman at gmail.com
>
> Helmholtz Centre for Environmental Research GmbH - UFZ
> Permoserstraße 15, 04318 Leipzig, Germany
> julia.osterman at ufz.de <julia.goss at ufz.de>
> _______________________________________________
> Mitarbeiter.zoologie mailing list
> Mitarbeiter.zoologie at lists.uni-halle.de
> https://lists.uni-halle.de/cgi-bin/mailman/listinfo/mitarbeiter.zoologie
>
>
>
> _______________________________________________
> Mitarbeiter.zoologie mailing list
> Mitarbeiter.zoologie at lists.uni-halle.de
> https://lists.uni-halle.de/cgi-bin/mailman/listinfo/mitarbeiter.zoologie
>
-------------- nächster Teil --------------
Ein Dateianhang mit HTML-Daten wurde abgetrennt...
URL: <http://lists.uni-halle.de/pipermail/mitarbeiter.zoologie/attachments/20201125/b4eedb5c/attachment-0001.html>