Happy to share our new @nature.com paper, led by @AriadnaMorales: https://www.nature.com/articles/s41586-024-08471-0
Thank you for inviting me to be part of this cool study!
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"How to feel bad and be wrong": https://www.experimental-history.com/p/how-to-feel-bad-and-be-wrong
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The Senckenberg Society for Nature Research @SenckenbergWorld / @sgn.one also made a press release for our paper: https://www.senckenberg.de/en/pressemeldungen/just-five-more-minutes-news-on-the-evolution-of-hibernation/
๐งต 14/12
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Here's also a link to a Plain Language Summary of our study: https://fesummaries.wordpress.com/2024/12/20/repeated-evolution-of-torpor-throughout-the-evolutionary-history-of-mammals-and-birds/
๐งต 13/12
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I would like to thank #EMBO and my coauthors for this very cool collaboration which allowed us to shed light on the origins of the amazing diversity in #torpor patterns of endotherms!
Stay tuned for more related work soon! ๐
๐งต 12/12
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A scenario of several independent gains of #hibernation is also consistent with:
a) the pattern of evolutionary transitions among #torpor states (post 6 above), and
b) the fact that variation among torpor-capable species is predominantly taxonomically structured (post 8 above).
๐งต 11/12
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Some have also suggested that #hibernation might have been instrumental to the survival of #mammals during the K-Pg boundary.
In contrast to these, we estimated a low probability for hibernation in ancestral mammals, with multiple gains of hibernation being more likely.
๐งต 10/12
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Q3๏ธโฃ: Was #hibernation present in early mammalian ancestors or did it evolve multiple times independently?
The argument for a single origin of hibernation in #mammals stems from its high degree of complexity, which would make multiple gains of hibernation difficult to occur.
๐งต 9/12
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Furthermore, torpor-capable species cover a wide range of physiological and ecological parameter space. The distribution of daily heterotherms and hibernators in this space is primarily taxonomically structured rather than environmentally structured.
๐งต 8/12
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Q2๏ธโฃ: Can we predict whether a given species is capable of torpor based on its physiological and ecological characteristics?
Features associated with torpor include low body mass, nocturnality, and a resource-poor environment. Nevertheless, such associations are quite weak.
๐งต 7/12
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Q1๏ธโฃ: Are daily torpor and #hibernation evolutionarily distinct #torpor types or parts of a continuum?
Our results strongly support the continuum hypothesis. That is, evolutionary transitions between no torpor and hibernation generally require an intermediate daily torpor step.
๐งต 6/12
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To address 3 key questions regarding #torpor #evolution, we compiled a #dataset of a) torpor capabilities and b) 21 ecophysiological variables for 1,338 species of #mammals and #birds.
We then analysed this dataset using a series of #phylogenetic comparative methods.
๐งต 5/12
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A wide range of #mammals can enter #torpor, including ๐ป, ๐ฆ, ๐ญ, ๐ฆ, and ๐ต.
Similarly, many clades of #birds include torpor-capable species. Yet, only a single bird species (the common poorwill; public domain picture by Louis Agassiz Fuertes) is known to hibernate.
๐งต 4/12
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[#]Torpor involves programmed and reversible decreases in metabolic rate, along with a drop in body temperature. Based on its duration, torpor in endotherms can be classified as daily torpor (<24 hours) or #hibernation (from days or weeks up to several months).
๐งต 3/12
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Numerous species of #mammals and #birds can respond to challenging periods (e.g., lack of food or water, extreme cold) through #torpor.
Photo: a torpid Eastern chipmunk. Taken by @dl_levesque / @daniellelevesque.bsky.social, the 2nd author of this paper.
๐งต 2/12
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Thrilled to share my first main #paper from my #EMBO #postdoc fellowship that is out today in #FunctionalEcology: https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2435.14739 ๐ฅณ
Read on to learn about the #evolution of #torpor among #mammals and #birds!
๐งต 1/12
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It got accepted! ๐ฅณ๐ฅณ๐ฅณ๐๐๐ฅฒ
Stay tuned for a proper ๐งต soon! ๐คฉ
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"Awaiting decision"
๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐๐ ๐ ๐ ๐ ๐ ๐
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"With editor for recommendation"
๐ ๐ ๐ ๐ ๐ ๐
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Now that there is a bridge between Mastodon and Bluesky (thanks to @bsky.brid.gy), do people have any recommendations for #ecologists or #EvolutionaryBiologists whose main account is on Bluesky but who have activated a bridge to Mastodon?
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