Matheus Januario
@mjanuario.bsky.social
PhD candidate in Ecol. & Evol. Biol. @ U of Michigan. "Someone who wears khaki pants, doesn't know much about mathematics, and misidentifies local beetles."
Pinned
Matheus Januario
@mjanuario.bsky.social
· Mar 12
What can #population-level processes tell us about large-scale #biodiversity? 🧵:
1/8 A key question in #evolutionary #biology: Can we predict how quickly lineages diversify (#speciation rates) based on #traits observable at the population level?
#microevolution #macroevolution
1/8 A key question in #evolutionary #biology: Can we predict how quickly lineages diversify (#speciation rates) based on #traits observable at the population level?
#microevolution #macroevolution
Reposted by Matheus Januario
1 week left to get your image in for Evolution 2026 logo contest! www.evolutionmeetings.org/2026-logo-co...
September 22, 2025 at 6:55 PM
1 week left to get your image in for Evolution 2026 logo contest! www.evolutionmeetings.org/2026-logo-co...
Reposted by Matheus Januario
UPDATE: The 2025-2026 list of faculty and postdoc positions in ecology and evolutionary biology is out! Be sure to check out this active and helpful community run resources! docs.google.com/spreadsheets...
ecoevojobs.net 2025-26
docs.google.com
September 19, 2025 at 9:47 PM
UPDATE: The 2025-2026 list of faculty and postdoc positions in ecology and evolutionary biology is out! Be sure to check out this active and helpful community run resources! docs.google.com/spreadsheets...
Reposted by Matheus Januario
For #FossilFriday, a visit to the Truckee Formation of Nevada: sticklebacks and a grebe in UMMP. Annual layers in these lake sediments give a precise relative chronology for fossils from different levels, providing kyr resolution essential for bridging paleontological and biological perspectives.
July 11, 2025 at 6:13 PM
For #FossilFriday, a visit to the Truckee Formation of Nevada: sticklebacks and a grebe in UMMP. Annual layers in these lake sediments give a precise relative chronology for fossils from different levels, providing kyr resolution essential for bridging paleontological and biological perspectives.
Reposted by Matheus Januario
Brazilians at #Evol2025! @mjanuario.bsky.social and I are planning ab informal meetup tomorrow after the poster session (~7:30pm) at Creature comforts, a brewery 10 min from the conference center. Non-Brazilians who want to mingle and hear some Portuguese are always welcome!! 🇧🇷🇧🇷🇧🇷
June 22, 2025 at 8:25 PM
Brazilians at #Evol2025! @mjanuario.bsky.social and I are planning ab informal meetup tomorrow after the poster session (~7:30pm) at Creature comforts, a brewery 10 min from the conference center. Non-Brazilians who want to mingle and hear some Portuguese are always welcome!! 🇧🇷🇧🇷🇧🇷
Reposted by Matheus Januario
Check out evolved on CRAN (cran.r-project.org/web/packages...) and GitHub (github.com/mjanuario/ev...)
evolved: Open Software for Teaching Evolutionary Biology at Multiple Scales Through Virtual Inquiries
"Evolutionary Virtual Education" - 'evolved' - provides multiple tools to help educators (especially at the graduate level or in advanced undergraduate level courses) apply inquiry-based learning in g...
cran.r-project.org
June 22, 2025 at 6:56 PM
Check out evolved on CRAN (cran.r-project.org/web/packages...) and GitHub (github.com/mjanuario/ev...)
Reposted by Matheus Januario
Hope you were able to catch @mjanuario.bsky.social’s #Evol2025 talk about his evolution education package, evolved! My friends are so smart
June 22, 2025 at 6:56 PM
Hope you were able to catch @mjanuario.bsky.social’s #Evol2025 talk about his evolution education package, evolved! My friends are so smart
Reposted by Matheus Januario
Come watch my talk at #Evol2025 this Monday @ 9:45am, at the Phylogenetic Methods Development I section. I'll be talking about methodological considerations on inferring a complete phylogenetic tree of Canidae. Who doesn't want to hear about dogs??? (and fossilized birth-death models, obviously...)
June 22, 2025 at 2:05 AM
Come watch my talk at #Evol2025 this Monday @ 9:45am, at the Phylogenetic Methods Development I section. I'll be talking about methodological considerations on inferring a complete phylogenetic tree of Canidae. Who doesn't want to hear about dogs??? (and fossilized birth-death models, obviously...)
Reposted by Matheus Januario
Congrats to two paleontological recipients of the prestigious Rackham Predoctoral Fellowship: Jerónimo Morales Toledo and Sanaa El-Sayed! 🌿🐟
April 22, 2025 at 8:04 PM
Congrats to two paleontological recipients of the prestigious Rackham Predoctoral Fellowship: Jerónimo Morales Toledo and Sanaa El-Sayed! 🌿🐟
Reposted by Matheus Januario
Here's a collage of specimens scanned and segmented at the UMMZ for the bluesky community to enjoy!
April 17, 2025 at 7:20 PM
Here's a collage of specimens scanned and segmented at the UMMZ for the bluesky community to enjoy!
Reposted by Matheus Januario
Its an honor to be awarded the ProQuest Distinguished Dissertation Award by the University of Michigan for my PhD work 🐟🧠
rackham.umich.edu/discover-rac...
rackham.umich.edu/discover-rac...
Announcing the 2024 ProQuest Distinguished Dissertation Award Winners » Rackham Graduate School: University of Michigan
The Rackham Graduate School is pleased to announce this year’s winners of the ProQuest Distinguished Dissertation Awards.
rackham.umich.edu
April 11, 2025 at 1:20 AM
Its an honor to be awarded the ProQuest Distinguished Dissertation Award by the University of Michigan for my PhD work 🐟🧠
rackham.umich.edu/discover-rac...
rackham.umich.edu/discover-rac...
Reposted by Matheus Januario
It's GRFP season again, so I thought I'd share my rejection letter (from 1999!). Hang tough--it doesn't determine your future.
April 9, 2025 at 8:13 PM
It's GRFP season again, so I thought I'd share my rejection letter (from 1999!). Hang tough--it doesn't determine your future.
Reposted by Matheus Januario
Went all the way to the Middle East to try for Northern Wheatear and didn't see a single one, only for one to show up in the middle of New Mexico. Probably a leucorhoa (Greenland) ssp?
April 8, 2025 at 12:01 AM
Went all the way to the Middle East to try for Northern Wheatear and didn't see a single one, only for one to show up in the middle of New Mexico. Probably a leucorhoa (Greenland) ssp?
Reposted by Matheus Januario
Speaking as a paleontologist, we don't need to bring back species long lost to extinction. Modern ecosystems are already stressed without introducing bioengineered monstrosities. Celebrate biodiversity by appreciating & conserving the endless forms most beautiful & wonderful alive in the world today
April 7, 2025 at 5:21 PM
Speaking as a paleontologist, we don't need to bring back species long lost to extinction. Modern ecosystems are already stressed without introducing bioengineered monstrosities. Celebrate biodiversity by appreciating & conserving the endless forms most beautiful & wonderful alive in the world today
Reposted by Matheus Januario
Eric Hilton and I are busy handling other papers for this volume--keep your eyes peeled for a diverse range of contributions on fossil fishes!
Just out in Contributions from the UMMP — the first article in the Lance Grande festschrift, authored by Eric Hilton, Willy Bemis, and @friedmanlab.bsky.social "Interconnected patterns of natural history: the career and contributions of Lance Grande."
deepblue.lib.umich.edu/handle/2027....
deepblue.lib.umich.edu/handle/2027....
April 3, 2025 at 6:08 PM
Eric Hilton and I are busy handling other papers for this volume--keep your eyes peeled for a diverse range of contributions on fossil fishes!
Reposted by Matheus Januario
Do you want to learn how to contribute to and use the Paleobiology Database? 🌎🦕🐚
Look no further - we're now welcoming applications to the 2025 edition of our introductory workshop!
More details here: forms.gle/xQqDEQwwXeTH...
Look no further - we're now welcoming applications to the 2025 edition of our introductory workshop!
More details here: forms.gle/xQqDEQwwXeTH...
April 3, 2025 at 8:00 PM
Do you want to learn how to contribute to and use the Paleobiology Database? 🌎🦕🐚
Look no further - we're now welcoming applications to the 2025 edition of our introductory workshop!
More details here: forms.gle/xQqDEQwwXeTH...
Look no further - we're now welcoming applications to the 2025 edition of our introductory workshop!
More details here: forms.gle/xQqDEQwwXeTH...
Reposted by Matheus Januario
I love the way the paper is all "we were like WTF, why did they do that, so we tried this and OMFG. And then we figured what the hell, we should try this, and you're not going to believe this shit but....."
April 4, 2025 at 3:58 AM
I love the way the paper is all "we were like WTF, why did they do that, so we tried this and OMFG. And then we figured what the hell, we should try this, and you're not going to believe this shit but....."
Reposted by Matheus Januario
One week left for applications! (just a simple questionnaire).
March 30, 2025 at 1:09 PM
One week left for applications! (just a simple questionnaire).
Reposted by Matheus Januario
Our datapaper "Global Roadkill Data: a dataset on terrestrial vertebrate mortality caused by collision with vehicles" is now online on #ScientificData: nature.com/articles/s41... #RoadEcology @ebdonana.bsky.social
March 31, 2025 at 9:10 PM
Our datapaper "Global Roadkill Data: a dataset on terrestrial vertebrate mortality caused by collision with vehicles" is now online on #ScientificData: nature.com/articles/s41... #RoadEcology @ebdonana.bsky.social
Reposted by Matheus Januario
curiosidade: se alguém criasse hoje um perfil de besouros do Brasil e postasse uma espécie única por dia, levaria pelo menos 82 ANOS para passar por todas as que conhecemos 🪲
seria massa um de besouros do brasil tbm
eu quero um perfil insetos do brasil, cadê cadê cadê?
March 29, 2025 at 12:33 PM
curiosidade: se alguém criasse hoje um perfil de besouros do Brasil e postasse uma espécie única por dia, levaria pelo menos 82 ANOS para passar por todas as que conhecemos 🪲
Reposted by Matheus Januario
Januario et al. found no correlation between sexual selection intensity & speciation rates or proxy traits. Because sexual selection intensity has high intraspecific variation and low phylogenetic signal, its macroevolutionary impacts are weak. Read now!
www.journals.uchicago.edu/doi/10.1086/...
www.journals.uchicago.edu/doi/10.1086/...
University of Chicago Press Journals: Cookie absent
www.journals.uchicago.edu
March 25, 2025 at 6:30 PM
Januario et al. found no correlation between sexual selection intensity & speciation rates or proxy traits. Because sexual selection intensity has high intraspecific variation and low phylogenetic signal, its macroevolutionary impacts are weak. Read now!
www.journals.uchicago.edu/doi/10.1086/...
www.journals.uchicago.edu/doi/10.1086/...
Reposted by Matheus Januario
We are excited to share our new preprint describing the inclusion of selection models to stdpopsim, our community-maintained library with an extensive catalog of population genetic models. 1/n
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
www.biorxiv.org
March 24, 2025 at 4:47 PM
We are excited to share our new preprint describing the inclusion of selection models to stdpopsim, our community-maintained library with an extensive catalog of population genetic models. 1/n
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by Matheus Januario
Impressive magnitude of the global Holocene sea-level rise:
"Our results also show that global mean sea-level rise between 11 ka and 3 ka amounted to 37.7 m (2σ range, 29.3–42.2 m)"
www.nature.com/articles/s41...
🧪 ⚒️ #Geology #Geography
"Our results also show that global mean sea-level rise between 11 ka and 3 ka amounted to 37.7 m (2σ range, 29.3–42.2 m)"
www.nature.com/articles/s41...
🧪 ⚒️ #Geology #Geography
March 20, 2025 at 10:21 AM
Impressive magnitude of the global Holocene sea-level rise:
"Our results also show that global mean sea-level rise between 11 ka and 3 ka amounted to 37.7 m (2σ range, 29.3–42.2 m)"
www.nature.com/articles/s41...
🧪 ⚒️ #Geology #Geography
"Our results also show that global mean sea-level rise between 11 ka and 3 ka amounted to 37.7 m (2σ range, 29.3–42.2 m)"
www.nature.com/articles/s41...
🧪 ⚒️ #Geology #Geography
Reposted by Matheus Januario
Our preprint is out! Kudos to @josanesousa.bsky.social, @gabrielalima19.bsky.social, @perezlouise.bsky.social and undergraduate prodigy Hannah Shof! By comparing Polypterus fin and axolotl limb we find shared and new regeneration programs. @lsuscience.bsky.social
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
March 15, 2025 at 4:02 PM
Our preprint is out! Kudos to @josanesousa.bsky.social, @gabrielalima19.bsky.social, @perezlouise.bsky.social and undergraduate prodigy Hannah Shof! By comparing Polypterus fin and axolotl limb we find shared and new regeneration programs. @lsuscience.bsky.social
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by Matheus Januario
New deadline May 15th - would love to see your contributions to this important special issue ...
Send us your manuscripts on “Mobilizing Natural History Collections in the Global South” 👇🏾
Reminder @irorotanshi.bsky.social and other are putting together a special issue of the Biological Journal of the Linnean Society @linneansociety.bsky.social titled 'Mobilizing Natural History Collection in the Global South'
Details available here: academic.oup.com/biolinnean/p...
Details available here: academic.oup.com/biolinnean/p...
March 11, 2025 at 12:02 PM
New deadline May 15th - would love to see your contributions to this important special issue ...
Reposted by Matheus Januario
Examining life-history differences among vertebrates and their mode of reproduction, Brooks et al. find that land vertebrate life histories are more constrained than aquatic ones, suggesting a wider diversity of reproductive strategies in aquatic habitats than in terrestrial ones
Fundamental constraints on vertebrate life history are shaped by aquatic–terrestrial transitions and reproductive mode
Nature Ecology & Evolution - The authors examine life-history differences between terrestrial versus aquatic vertebrates and their mode of reproduction. They find that land vertebrate life...
rdcu.be
March 13, 2025 at 10:12 AM
Examining life-history differences among vertebrates and their mode of reproduction, Brooks et al. find that land vertebrate life histories are more constrained than aquatic ones, suggesting a wider diversity of reproductive strategies in aquatic habitats than in terrestrial ones