Guilherme Caeiro Dias

Evolutionary Biologist PhD; Interested in #evolution, #popgen population genomics, #speciation, #hybridization, #conservationgenomics, #bioinformatics, and a better society. Research assistant professor @UNM University of New Mexico and Museum of Southwestern Biology (USA).🏳️‍🌈 He/Him

Guilherme Caeiro Dias boosted:
JKN Techjkntech
2024-10-18

Thanks to artificial barriers by Microsoft, companies and consumers are expected to dump millions of perfectly usable computers.
Its time to step away from the Microsoft monopoly and take back ownership of your property! Any computer/laptop up to 12 years old is supported by modern operating systems and applications. Enjoy the latest features and security updates by the global Linux community for many years to come.

ewaste
Guilherme Caeiro Dias boosted:

As far back as 1888, people have been skeptical as to whether the bumble bee Bombus sonorus should be recognized as a separate species or a subspecies or variety of Bombus pensylvanicus. We attempt to put that to rest using genetic data of bees from a broad area of sympatry. Spoiler alert...they are genetically distinct and there's no evidence that they're hybridizing.
jhr.pensoft.net/article/132937
#Bombus #BumbleBees #Bees #NaturalHistory

Figure showing diagram of coloration of the two bees. One one has two yellow bands on thorax, the other has two.Diagram of genetic results showing two distinct clusters corresponding to the two species.
Guilherme Caeiro Diasgcaeirodias@ecoevo.social
2024-10-16

In our most recent publication we evaluated the Rio Grande silvery minnow mtDNA diversity from tempral data by laveraging nextRAD sequencing data to find mtDNA fragments. We found more than we were expecting; in several cases we were able to assemble the complete or nearly complete mitogenome. Check it out: doi.org/10.1093/biolinnean/bla

Guilherme Caeiro Dias boosted:
2023-10-01

You will experience climate change through a series of increasingly wild videos, until one day it's you taking the video.

#climatechange

Guilherme Caeiro Dias boosted:
Guilherme Caeiro Diasgcaeirodias@ecoevo.social
2023-09-21

Our last article on the genomics of reproductive isolation in the late stages of speciation (Molecular Ecology). Selection against introgression is strong and results from many interacting barriers across the genome, but are particularly strong on sex chromosomes. And there's more: important pre-mating barriers(?), a moving hybrid zone, potential positive selection, no mtDNA introgression, incongruences between genomic and geographic clines.
onlinelibrary.wiley.com/doi/10

Guilherme Caeiro Dias boosted:
Guilherme Caeiro Diasgcaeirodias@ecoevo.social
2023-09-21

The final version of our paper where we made available the first draft Rio Grande silvery minnow genomes, a female and a male, discovered sex-linked markers and uncovered the sex determination system in this species is now available on-line. academic.oup.com/jhered/advanc

Guilherme Caeiro Diasgcaeirodias@ecoevo.social
2023-09-20

Despite supportive breeding in the last 20 years, we found evidence for loss of genetic diversity in Rio Grande silvery minnow in the last 10 years, after several consecutive years of severe drought.

conbio.onlinelibrary.wiley.com

Guilherme Caeiro Dias boosted:
Miriam BooshMiriamm
2023-08-31

The worst thing about this Musk vs Zuck thing is it's making people root for Zuck. STOP IT, FIND ENOUGH SPACE IN YOUR HEART TO VISCERALLY HATE BOTH OF THEM

Guilherme Caeiro Diasgcaeirodias@ecoevo.social
2023-08-21

Starting soon our symposium dedicated to graduate and early-career research in genetics and genomics at #AFS2023 Grand Rapids, Michigan.

Guilherme Caeiro Diasgcaeirodias@ecoevo.social
2023-08-18

We’re seeking MSc/PhD Students🐟🧬
The Turner Aquatic Conservation Lab (University of New Mexico, Albuquerque, NM, USA) is seeking students interested in (but not limited to) fresh water fish biology, population/conservation genomics, bioinformatics. We have been developing genomic tools (currently on different stages of development for several species) that can be applied to SW freshwater desert fish conservation including RADseq, GTseq, genome sequencing.
Contacts here: tacl.online/

Guilherme Caeiro Dias boosted:
2023-08-15
Guilherme Caeiro Dias boosted:
Trends in Ecology & EvolutionTrendsEcolEvo@mstdn.science
2023-08-15
Guilherme Caeiro Dias boosted:
2023-08-14

Exciting work from Chloe Mikles' undergraduate thesis is finally out in
conservation genetics! Chloe sequenced whole genome sequences from 39 Song Sparrows in the San Francisco Bay Area
to explore the genetic basis of local adaptation and adaptive capacity among the 5 subspecies
found in the region.

Evolutionary divergence and adaptive capacity in morphologically distinct song sparrow subspecies
link.springer.com/article/10.1

#ornithology #ConservationGenomics #sparrows
#saltmarshes

Figure 1 from Mikles et al. 2023 showing the 5 song sparrow species occurring in salt marsh and upland habitats in the San Francisco Bay Area of California. Fig. 1b and 1d show the relative importance of different environmental variables in structuring genetic variation among these subspecies with temperature and salinity among the most important variables.
Guilherme Caeiro Dias boosted:
2023-08-14

Now accepting symposium proposals for #Evol2024 with @eseb, @ASNAmNat, and @SystBiol in Montreal! This meeting will be a mix of the Evolution and ESEB meeting formats. Submit your proposal by September 1! @evol_mtg

evolutionsociety.org/news/disp

Logos for ESEB, SSE, ASN, SSB, and Evolution Meetings. Simplified skyline of Montreal. Text: Third Joint Congress on Evolutionary Biology, Montreal, Canada, July 26-30, 2024, Proposals due September 1.
Guilherme Caeiro Dias boosted:
2023-08-05

I'm sharing here a wide range of resources and advice that has helped me as I delved into climate action and work as an academic; please share widely!

gracewlindsay.com/2023/08/04/s

#academia #climatechange #climatecrisis #climate

Guilherme Caeiro Dias boosted:
2023-07-30

Returning to my original point, which I lost sight of almost immediately: I wish we would stop referring to plants by the gendered terms we invented to refer to ourselves. Plants don't have genders, and thinking they do has caused a surprising amount of misery.

A happier postscript: to this day, there's a strong tradition of female botanical illustrators in Europe and the UK; I know plenty personally, all the masters are women. As has always been the case, people are resilient in the face of oppression, and so things improve and times change - though the past echoes on forever.

By the way, the mindblowing volume, "Specimens of the plants and fruits of the island of Cuba", which was discovered only a few years ago, can be viewed here: babel.hathitrust.org/cgi/pt?id

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Guilherme Caeiro Dias boosted:
2023-07-30

Just one example: the mindblowing volume that botanist Anne Wollstonecraft wrote in the 1820s in Cuba, only permissable because she did so under the guise of being an illustrator - beside making exquisite illustrations and detailed descriptions, she interviewed the indigenous people of Cuba and wrote about the ways in which they saw and used plants. Something a gentleman explorer would never ever do! The book was never published, only a single (!) hand-written (!!!) volume exists. It makes one weep at what could have been, had women been permitted to participate in this sexy, horny field of botany. How much richer we could all have been, how much more complete our understanding of the world. All because we had to frontload the whole thing with our own prejudices and sexist nonsense.

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Guilherme Caeiro Dias boosted:
2023-07-30

Here's a botanical gripe that drives me up the wall every so often: using gendered terms for plants. We talk about male and female parts and while reproduction-wise it's understandable how it got to be that way, it's actually massively unhelpful because people can't stop themselves from having all these connotations of gender roles, just like they do for people, but for plants. Which isn't just my conjecture - historically, women were prohibited from being botanists because of these gendered ideas, because of female eggs being impregnated by pollen from male parts, flowers with anthers and styles being described as a bed with so many men and so many women... it was all considered far too hot and steamy for the suggestible female mind.

Which is why for centuries, European women were generally only able to enter the field of botany by becoming illustrators. Most great botanical illustrators from the eighteenth and nineteenth centuries were women.

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Guilherme Caeiro Dias boosted:
2023-07-28

It's kind of beautiful that the American "symbol of supreme power and authority", the bald eagle, is regularly chased off by the communal efforts of hyper-intelligent goth birds.

A bedraggled bald eagle.An American crow out for a strut.
Guilherme Caeiro Diasgcaeirodias@ecoevo.social
2023-07-22

The final version of our paper where we made available the first draft Rio Grande silvery minnow genomes, a female and a male, discovered sex-linked markers and uncovered the sex determination system in this species is now available on-line. academic.oup.com/jhered/advanc

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