Markus Friedrich

Markus Friedrich

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Published on Aug 16, 2020

Body cuticle breathing in subterranean diving beetles

Hello there dear friends of the cave beetle, I hope this is reaching you well. As temperatures reached their high points in the US just around now, this may be a good time to bring one of the coole...

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Published on Jul 04, 2020

Extraordinarily heat-tolerant beetles inspiring new cooling material designs

Hello there dear friends of the cave beetle,It's been a while since the last post for a reason that needs little explanation as Covid-19 continues to dictate our daily affairs, asking for continued...

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Published on Feb 29, 2020

Off topic but irresistible: Cave beetle awed by riveting discovery of troglomorphic fish in Congo River

That's actually all that needs to be said. For details, check out the wonderful coverage in the New York Times: https://www.nytimes.com/2020/02/25/science/congo-river-fish.htmlI trust most of you w...

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Published on Feb 16, 2020

~ 4 degrees Celsius is how low the cave beetle can still "go"

Or: Literally cool news as February has been dishing out a crispy few days closer to 0 Fahrenheit here in Detroit than you would like. Not sure this inspired us, but, as we thought about how to set...

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Published on Dec 29, 2019

30 degrees Celsius it is!

Hello there dear friends of the cave beetle,As expected, the repeat of the 2019 short term temperature tolerance experiment has come to an end. And an informative one at that, I would claim. Most s...

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Published on Dec 20, 2019

Another larva: After 5 days at 26 degrees Celsius!

Hello there, This is a short post as the title sums up what we found on the female test plate a few days back and blew our mind, again. This finding once more expands the temperature range at which...

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Published on Dec 15, 2019

Cave beetle surprises with offspring at 22 degrees Celsius

Hello there again dear friends of the cave beetle, and many thanks for your kind feedback on the previous 18 degrees Celsius note! I am pretty excited to find myself in the position to update you o...

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Published on Nov 30, 2019

Long term temperature tolerance raised to 18 degrees Celsius

Hello there friends of the cave beetle, a few weeks back I didn't expect to have much to report for the near future, but the cave beetle proved me wrong. You may remember last report on the first a...

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Hello there Jeff, And many thanks for your at least equally fascinating comment on the water mites. I will bring this to Steve's attention!
Aug 20, 2020
Exploring the temperature tolerance of a cave beetle
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Hey Steve, So good to hear from down under. And glad, of course, you liked what you saw. Sure, let's keep our fingers crossed for an ICSB 21. And vaccines for everyone by then.
Aug 17, 2020
Exploring the temperature tolerance of a cave beetle
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You are very welcome Doris! Thanks for your interest.
Aug 05, 2020
Exploring the temperature tolerance of a cave beetle
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Hi there Christina, And my compliment on keeping up your good work in this difficult time! Your book choice made me curious, so I took a closer look. Turns out that Unwelcome Harvest came out in 1991. So it has to be a little dated given the progress on issues since then. One of the two authors published a major textbook just 2 years ago, which looks like a relevant choice for you as well: Sustainable Intensification of Agriculture: Greening the World's Food Economy (https://books.google.com/books/about/Sustainable_Intensification_of_Agricultu.html?id=XWJgDwAAQBAJ&source=kp_book_description). Unfortunately, it's a bit expensive. But, given the excruciating circumstances, I wonder whether it would be ok to invest some of your budget into the book. My apologies, in case you mentioned the book in earlier posts. Anyways, best of luck with your project!
May 11, 2020
Can Chlorella algae be used as soil amendment to improve crop production?
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Let me also take this as another opportunity to credit WSU undergrad supreme Devyn Ryan. She single-handedly wrapped up all experimentation and documentation over the past 2 weeks after a very short training time and never minding the holidays. Just impressive. Many many thanks Ryan!
Dec 29, 2019
Exploring the temperature tolerance of a cave beetle
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Thank you. Absolutely. While we still have a mile or 2 to what I would consider "mimimal publication unit", I do feel we accomplished our main goal with this. And topped off with a quite surprising answer. So I am sure the cave beetles agree about party time, except for the sadly deceased ones of course, deserving special commemoration...
Dec 29, 2019
Exploring the temperature tolerance of a cave beetle
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Update: 4 more swiftly moving 18 degress Celsius beetles collected this week. So it seems safe to conclude that this temperature is not a challenge for P. hirtus.
Oct 17, 2019
Exploring the temperature tolerance of a cave beetle
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Glueckwunsch! Thanks for a great study. And for proving what this site can facilitate.
Oct 01, 2019
Finding the ancestral roots of female orgasm
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You are right on the money again. Sensory appendage elongation is part of what is called the troglomorphic phenotype. The most striking aspect in the P. hirtus larvae are the long terminal cerci. Will post an annotated image this weekend (if time allows).
Jun 11, 2019
Exploring the temperature tolerance of a cave beetle
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That is right indeed. Congratulations Qing and thank you for your insightful input! Turns out we are looking at a shed first larval instar cuticle or exoskeleton. This documents successful growth and development of the larvae on the 16 degrees Celsius plate. It's easy to grow in body size, but quite a challenge for any molting animal (Edysozoa) to break through the tightening grip of an outsized cuticle and leave it completely behind. So that's why this little piece of larval cuticle is a really encouraging finding.
Jun 11, 2019
Exploring the temperature tolerance of a cave beetle
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Hi there Qing, Interesting guess. What exactly do you mean by "molt"?
Jun 10, 2019
Exploring the temperature tolerance of a cave beetle
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Your kind words are much appreciated, Monique. The cave beetle friends will stay informed here. Promise!
May 21, 2019
Exploring the temperature tolerance of a cave beetle
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