Greg Walter
@gmwalter.bsky.social
Ecological and evolutionary genetics, mainly with plants
Lecturer & ARC Future Fellow, University of Tasmania
Lecturer & ARC Future Fellow, University of Tasmania
Pinned
Greg Walter
@gmwalter.bsky.social
· Sep 3
Variation in temperature but not diet determines the stability of latitudinal clines in tolerance traits and their plasticity | Proceedings of the Royal Society B: Biological Sciences
Latitudinal clines are routinely used as evidence of adaptation across broad climatic
gradients. However, if environmental variation influences the strength of latitudinal
clines, then clinal patterns...
doi.org
First post here 😬 .. hi everyone!
Our new paper is the first from my short foray into a non-plant system! [don't worry, back to plants!]
We show how clinal patterns in climate tolerance and plasticity are environment-dependent! doi.org/10.1098/rspb...
Thanks to ProcB and the reviewers!
Our new paper is the first from my short foray into a non-plant system! [don't worry, back to plants!]
We show how clinal patterns in climate tolerance and plasticity are environment-dependent! doi.org/10.1098/rspb...
Thanks to ProcB and the reviewers!
Reposted by Greg Walter
A bit late, but really happy to see my first PhD paper out!
We studied trait-elevation relationships in multiple traits spanning growth, size (both above and belowground) and leaf economics to understand whether these align at within- and among-species scales.
academic.oup.com/evlett/advan...
We studied trait-elevation relationships in multiple traits spanning growth, size (both above and belowground) and leaf economics to understand whether these align at within- and among-species scales.
academic.oup.com/evlett/advan...
Alignment across taxonomic levels in strategies rather than in traits along elevational gradients
Abstract. Trait variation along environmental gradients can indicate the different strategies that organisms have evolved in response to environmental hete
academic.oup.com
September 3, 2025 at 2:13 PM
A bit late, but really happy to see my first PhD paper out!
We studied trait-elevation relationships in multiple traits spanning growth, size (both above and belowground) and leaf economics to understand whether these align at within- and among-species scales.
academic.oup.com/evlett/advan...
We studied trait-elevation relationships in multiple traits spanning growth, size (both above and belowground) and leaf economics to understand whether these align at within- and among-species scales.
academic.oup.com/evlett/advan...
Reposted by Greg Walter
1. My first ever paper is out! With
@euantheyoung.bsky.social
@lummaalab.bsky.social
@erikpostma.bsky.social
@hannahdugdale.bsky.social
How do older siblings, and their sex and age, affect the survival of younger siblings? Find out by checking below.
royalsocietypublishing.org/doi/full/10....
@euantheyoung.bsky.social
@lummaalab.bsky.social
@erikpostma.bsky.social
@hannahdugdale.bsky.social
How do older siblings, and their sex and age, affect the survival of younger siblings? Find out by checking below.
royalsocietypublishing.org/doi/full/10....
Age- and sex-dependent associations between the number of older siblings and early-life survival in pre-industrial humans | Proceedings of the Royal Society B: Biological Sciences
Siblings are an important part of an individual’s early-life environment and may therefore play an important role in shaping an individual’s survival. The quantification of sibling effects on survival is challenging, however, especially in long-lived ...
royalsocietypublishing.org
September 3, 2025 at 1:47 PM
1. My first ever paper is out! With
@euantheyoung.bsky.social
@lummaalab.bsky.social
@erikpostma.bsky.social
@hannahdugdale.bsky.social
How do older siblings, and their sex and age, affect the survival of younger siblings? Find out by checking below.
royalsocietypublishing.org/doi/full/10....
@euantheyoung.bsky.social
@lummaalab.bsky.social
@erikpostma.bsky.social
@hannahdugdale.bsky.social
How do older siblings, and their sex and age, affect the survival of younger siblings? Find out by checking below.
royalsocietypublishing.org/doi/full/10....
Reposted by Greg Walter
woah this is genuinely, utterly WILD
Ant queens of one species produce males of another species, so she can then mate with them and produce hybrid workers!
This is so gloriously weird I can't quite compute it 🤯🧪🐜
www.nature.com/articles/d41...
Ant queens of one species produce males of another species, so she can then mate with them and produce hybrid workers!
This is so gloriously weird I can't quite compute it 🤯🧪🐜
www.nature.com/articles/d41...
‘Almost unimaginable’: these ants are different species but share a mother
Ant queens of one species clone ants of another to create hybrid workers that do their bidding.
www.nature.com
September 3, 2025 at 10:09 PM
woah this is genuinely, utterly WILD
Ant queens of one species produce males of another species, so she can then mate with them and produce hybrid workers!
This is so gloriously weird I can't quite compute it 🤯🧪🐜
www.nature.com/articles/d41...
Ant queens of one species produce males of another species, so she can then mate with them and produce hybrid workers!
This is so gloriously weird I can't quite compute it 🤯🧪🐜
www.nature.com/articles/d41...
First post here 😬 .. hi everyone!
Our new paper is the first from my short foray into a non-plant system! [don't worry, back to plants!]
We show how clinal patterns in climate tolerance and plasticity are environment-dependent! doi.org/10.1098/rspb...
Thanks to ProcB and the reviewers!
Our new paper is the first from my short foray into a non-plant system! [don't worry, back to plants!]
We show how clinal patterns in climate tolerance and plasticity are environment-dependent! doi.org/10.1098/rspb...
Thanks to ProcB and the reviewers!
Variation in temperature but not diet determines the stability of latitudinal clines in tolerance traits and their plasticity | Proceedings of the Royal Society B: Biological Sciences
Latitudinal clines are routinely used as evidence of adaptation across broad climatic
gradients. However, if environmental variation influences the strength of latitudinal
clines, then clinal patterns...
doi.org
September 3, 2025 at 11:40 PM
First post here 😬 .. hi everyone!
Our new paper is the first from my short foray into a non-plant system! [don't worry, back to plants!]
We show how clinal patterns in climate tolerance and plasticity are environment-dependent! doi.org/10.1098/rspb...
Thanks to ProcB and the reviewers!
Our new paper is the first from my short foray into a non-plant system! [don't worry, back to plants!]
We show how clinal patterns in climate tolerance and plasticity are environment-dependent! doi.org/10.1098/rspb...
Thanks to ProcB and the reviewers!
Reposted by Greg Walter
I'm looking to recruit a PhD student to study patterns of local adaptation and introgression across the spruce hybrid zone in the Rockies near Calgary. Projects can include field work, bioinformatics, pop gen theory, or comparison to plant/ conifer species
yeamanlab.weebly.com/uploads/5/7/...
yeamanlab.weebly.com/uploads/5/7/...
August 20, 2025 at 8:19 PM
I'm looking to recruit a PhD student to study patterns of local adaptation and introgression across the spruce hybrid zone in the Rockies near Calgary. Projects can include field work, bioinformatics, pop gen theory, or comparison to plant/ conifer species
yeamanlab.weebly.com/uploads/5/7/...
yeamanlab.weebly.com/uploads/5/7/...
Reposted by Greg Walter
and, @stuartmcdaniel.bsky.social !
My favorite part of this paper: the collaboration started after I sent Meng a biorxiv preprint from Stuart's lab.. She contacted him with questions about that work, and the collaboration grew from there.
My favorite part of this paper: the collaboration started after I sent Meng a biorxiv preprint from Stuart's lab.. She contacted him with questions about that work, and the collaboration grew from there.
Yuan, @stepheniwright.bsky.social, @johnstinchcombe.bsky.social, et al. examined signatures of selection across life stages in the angiosperm Rumex hastatulus and the moss Ceratodon purpureus.
🔗 doi.org/10.1093/gbe/evaf138
#genome #evolution #PlantSky
🔗 doi.org/10.1093/gbe/evaf138
#genome #evolution #PlantSky
Testing for the Genomic Footprint of Conflict Between Life Stages in an Angiosperm and Moss Species
Abstract. The maintenance of genetic variation by balancing selection is of considerable interest to evolutionary biologists. An important but understudied
doi.org
August 20, 2025 at 12:26 PM
and, @stuartmcdaniel.bsky.social !
My favorite part of this paper: the collaboration started after I sent Meng a biorxiv preprint from Stuart's lab.. She contacted him with questions about that work, and the collaboration grew from there.
My favorite part of this paper: the collaboration started after I sent Meng a biorxiv preprint from Stuart's lab.. She contacted him with questions about that work, and the collaboration grew from there.
Reposted by Greg Walter
Sophie Buysse's paper on short stamen loss in Arabipsis is published in this month's Evolution issue!! academic.oup.com/evolut/artic... @journal-evo.bsky.social
Evaluating the roles of drift and selection in trait loss along an elevational gradient
The evolutionary mechanisms underlying loss or retention of traits that have lost function are poorly understood. Short stamens in Arabidopsis thaliana pro
academic.oup.com
July 21, 2025 at 5:51 PM
Sophie Buysse's paper on short stamen loss in Arabipsis is published in this month's Evolution issue!! academic.oup.com/evolut/artic... @journal-evo.bsky.social
Reposted by Greg Walter
John Maynard Smith on adaptationist cleaning up their act following the spandrels paper.
From Dinosaur Dilemmas, NYRB
April 25, 1991.
From Dinosaur Dilemmas, NYRB
April 25, 1991.
June 20, 2025 at 8:34 PM
John Maynard Smith on adaptationist cleaning up their act following the spandrels paper.
From Dinosaur Dilemmas, NYRB
April 25, 1991.
From Dinosaur Dilemmas, NYRB
April 25, 1991.
Reposted by Greg Walter
SO excited for #Evol2025 @sse-evolution.bsky.social!!!!!!! The Coughlan lab has a stellar line up of folks giving talks (on lab projects and beyond!)- please check them out! We welcome all feedback and would love to hear from you!!!
June 19, 2025 at 8:02 PM
SO excited for #Evol2025 @sse-evolution.bsky.social!!!!!!! The Coughlan lab has a stellar line up of folks giving talks (on lab projects and beyond!)- please check them out! We welcome all feedback and would love to hear from you!!!
Reposted by Greg Walter
I'm so excited to be at #evol2025!! Lab talks: "Adaptive and maladaptive plasticity in leaf number among populations of A. thaliana" from Sophie Buysse at 9:30 in Sunday in Adaptation V
June 20, 2025 at 12:29 PM
I'm so excited to be at #evol2025!! Lab talks: "Adaptive and maladaptive plasticity in leaf number among populations of A. thaliana" from Sophie Buysse at 9:30 in Sunday in Adaptation V
Reposted by Greg Walter
Shout out to this excellent & thorough paper:
Leaf venation: structure, function, development, evolution, ecology and applications in the past, present and future
A compendium, really, especially if you include the supplemental info. #PlantScience 🧪
nph.onlinelibrary.wiley.com/doi/10.1111/...
Leaf venation: structure, function, development, evolution, ecology and applications in the past, present and future
A compendium, really, especially if you include the supplemental info. #PlantScience 🧪
nph.onlinelibrary.wiley.com/doi/10.1111/...
Leaf venation: structure, function, development, evolution, ecology and applications in the past, present and future
The design and function of leaf venation are important to plant performance, with key implications for the distribution and productivity of ecosystems, and applications in paleobiology, agriculture a....
nph.onlinelibrary.wiley.com
June 18, 2025 at 3:55 PM
Shout out to this excellent & thorough paper:
Leaf venation: structure, function, development, evolution, ecology and applications in the past, present and future
A compendium, really, especially if you include the supplemental info. #PlantScience 🧪
nph.onlinelibrary.wiley.com/doi/10.1111/...
Leaf venation: structure, function, development, evolution, ecology and applications in the past, present and future
A compendium, really, especially if you include the supplemental info. #PlantScience 🧪
nph.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Greg Walter
How many times have buzz pollinated flowers evolved? Read the latest version of our preprint here www.biorxiv.org/content/10.1... @draverbee.bsky.social @roszenil.bsky.social
June 17, 2025 at 6:59 AM
How many times have buzz pollinated flowers evolved? Read the latest version of our preprint here www.biorxiv.org/content/10.1... @draverbee.bsky.social @roszenil.bsky.social
Reposted by Greg Walter
Please pass along - postdoc position! with our working group on #FunctionalTraits and rarity. This is part of the FREE (Functional Rarity in Ecology and Evolution) working group led by Cyrille Violle in Montpellier France 🧪🌐🌾 emploi.cnrs.fr/Offres/CDD/U...
Portail Emploi CNRS - Offre d'emploi - Offre de post-doctorat en écologie (H/F)
emploi.cnrs.fr
June 17, 2025 at 8:40 PM
Please pass along - postdoc position! with our working group on #FunctionalTraits and rarity. This is part of the FREE (Functional Rarity in Ecology and Evolution) working group led by Cyrille Violle in Montpellier France 🧪🌐🌾 emploi.cnrs.fr/Offres/CDD/U...
Reposted by Greg Walter
Hey, Miles' @milesroberts.bsky.social beautiful paper showing that sequence diversity missed by standard methods contributes to Lewontin's paradox is officially published in @evolletters.bsky.social. academic.oup.com/evlett/advan...
k-mer-based diversity scales with population size proxies more than nucleotide diversity in a meta-analysis of 98 plant species
Abstract. A key prediction of neutral theory is that the level of genetic diversity in a population should scale with population size. However, as was note
academic.oup.com
June 12, 2025 at 7:57 PM
Hey, Miles' @milesroberts.bsky.social beautiful paper showing that sequence diversity missed by standard methods contributes to Lewontin's paradox is officially published in @evolletters.bsky.social. academic.oup.com/evlett/advan...
Reposted by Greg Walter
Super excited to release a huge evolution project on the works for many years:
Evolution experiments synchronized across climates to understand rapid adaptation
Preprint: doi.org/10.1101/2025...
All data available: www.grene-net.org/data
#MOILAB
@ucberkeleyofficial.bsky.social
@hhmi.org
🧵👇
Evolution experiments synchronized across climates to understand rapid adaptation
Preprint: doi.org/10.1101/2025...
All data available: www.grene-net.org/data
#MOILAB
@ucberkeleyofficial.bsky.social
@hhmi.org
🧵👇
May 30, 2025 at 5:56 PM
Super excited to release a huge evolution project on the works for many years:
Evolution experiments synchronized across climates to understand rapid adaptation
Preprint: doi.org/10.1101/2025...
All data available: www.grene-net.org/data
#MOILAB
@ucberkeleyofficial.bsky.social
@hhmi.org
🧵👇
Evolution experiments synchronized across climates to understand rapid adaptation
Preprint: doi.org/10.1101/2025...
All data available: www.grene-net.org/data
#MOILAB
@ucberkeleyofficial.bsky.social
@hhmi.org
🧵👇
Reposted by Greg Walter
Our paper on evolution of plasticity and character displacement in a fluctuating environment is now published as early view in Evolution. Check it out if you're interested in eco-evolutionary dynamics, coevolution... and plasticity of course!
academic.oup.com/evolut/advan...
academic.oup.com/evolut/advan...
Evolution of plasticity and character displacement in a fluctuating environment
academic.oup.com
May 26, 2025 at 8:13 AM
Our paper on evolution of plasticity and character displacement in a fluctuating environment is now published as early view in Evolution. Check it out if you're interested in eco-evolutionary dynamics, coevolution... and plasticity of course!
academic.oup.com/evolut/advan...
academic.oup.com/evolut/advan...
Reposted by Greg Walter
📢 New publication 'Multi-response #phylogenetic mixed #models: concepts and application' by Ben Halliwell, Barbara Holland and Luke Yates in Biological Reviews 🧪
doi.org/10.1111/brv....
doi.org/10.1111/brv....
Multi‐response phylogenetic mixed models: concepts and application
The scale and resolution of trait databases and molecular phylogenies is increasing rapidly. These resources permit many open questions in comparative biology to be addressed with the right statistic...
doi.org
May 22, 2025 at 12:07 AM
📢 New publication 'Multi-response #phylogenetic mixed #models: concepts and application' by Ben Halliwell, Barbara Holland and Luke Yates in Biological Reviews 🧪
doi.org/10.1111/brv....
doi.org/10.1111/brv....
Reposted by Greg Walter
Finally out: Predicting adaptation to climate warming www.nature.com/articles/s41...
We find that there are many genomic routes to heat-adaptation, but this can also make genomic data of limited value for prediction. A tour de force by @denovorego.bsky.social , with @stelkens.bsky.social.
We find that there are many genomic routes to heat-adaptation, but this can also make genomic data of limited value for prediction. A tour de force by @denovorego.bsky.social , with @stelkens.bsky.social.
Repeatability of evolution and genomic predictions of temperature adaptation in seed beetles - Nature Ecology & Evolution
The authors compare genomic and phenotypic changes between genetic backgrounds of seed beetles evolved at hot or cold temperatures. Despite phenotypic changes being more rapid and predictable at hot t...
www.nature.com
May 16, 2025 at 12:16 PM
Finally out: Predicting adaptation to climate warming www.nature.com/articles/s41...
We find that there are many genomic routes to heat-adaptation, but this can also make genomic data of limited value for prediction. A tour de force by @denovorego.bsky.social , with @stelkens.bsky.social.
We find that there are many genomic routes to heat-adaptation, but this can also make genomic data of limited value for prediction. A tour de force by @denovorego.bsky.social , with @stelkens.bsky.social.
Reposted by Greg Walter
Very happy and humbled to have received this award. A huge thanks to all my wonderful colleagues @scienceanu.bsky.social and abroad who made this possible!
April 8, 2025 at 8:44 PM
Very happy and humbled to have received this award. A huge thanks to all my wonderful colleagues @scienceanu.bsky.social and abroad who made this possible!
Reposted by Greg Walter
Currently developing a workshop for postdocs on mentoring and managing in EEB! What are some topics/pieces of advice you'd have wanted to learn about as a postdoc?
April 16, 2025 at 12:12 AM
Currently developing a workshop for postdocs on mentoring and managing in EEB! What are some topics/pieces of advice you'd have wanted to learn about as a postdoc?
Reposted by Greg Walter
Last year I posted too early and had to retract my post 🫣, but now that all @niooknaw.bsky.social @animalecol-nioo.bsky.social nest boxes on #Vlieland have been checked, we know for sure that it is - yet again - a very early start of the breeding season! @uniexecec.bsky.social @sevans.bsky.social
April 15, 2025 at 5:57 PM
Last year I posted too early and had to retract my post 🫣, but now that all @niooknaw.bsky.social @animalecol-nioo.bsky.social nest boxes on #Vlieland have been checked, we know for sure that it is - yet again - a very early start of the breeding season! @uniexecec.bsky.social @sevans.bsky.social
Reposted by Greg Walter
👋
Interested in working on the evolution of genetic architecture 🧬 of complex traits using linked-read sequencing of thousands of common lizards 🦎 from a wild population and common garden experiment?
#evolution #genetics
Well, I have a PhD offer for you 👇
devillemereuil.legtux.org/erc-funded-p...
Interested in working on the evolution of genetic architecture 🧬 of complex traits using linked-read sequencing of thousands of common lizards 🦎 from a wild population and common garden experiment?
#evolution #genetics
Well, I have a PhD offer for you 👇
devillemereuil.legtux.org/erc-funded-p...
ERC-funded PhD position available – Pierre de Villemereuil
devillemereuil.legtux.org
April 8, 2025 at 3:54 PM
👋
Interested in working on the evolution of genetic architecture 🧬 of complex traits using linked-read sequencing of thousands of common lizards 🦎 from a wild population and common garden experiment?
#evolution #genetics
Well, I have a PhD offer for you 👇
devillemereuil.legtux.org/erc-funded-p...
Interested in working on the evolution of genetic architecture 🧬 of complex traits using linked-read sequencing of thousands of common lizards 🦎 from a wild population and common garden experiment?
#evolution #genetics
Well, I have a PhD offer for you 👇
devillemereuil.legtux.org/erc-funded-p...
Reposted by Greg Walter
Interested in other approaches to measuring selection on gene expression?
The incomparable John Kelly and I have written a perspective piece describing why one might want to measure selection on gene expression, and exploring a few ways one might use to do it.
The incomparable John Kelly and I have written a perspective piece describing why one might want to measure selection on gene expression, and exploring a few ways one might use to do it.
March 26, 2025 at 1:12 PM
Interested in other approaches to measuring selection on gene expression?
The incomparable John Kelly and I have written a perspective piece describing why one might want to measure selection on gene expression, and exploring a few ways one might use to do it.
The incomparable John Kelly and I have written a perspective piece describing why one might want to measure selection on gene expression, and exploring a few ways one might use to do it.
Reposted by Greg Walter
CONVERGENT EVOLUTION is the independent development of similar traits or features in distantly related or unrelated organisms, often occurring when they occupy similar ecological niches or face similar environmental pressures 🦉 🍏
March 29, 2025 at 1:23 PM
CONVERGENT EVOLUTION is the independent development of similar traits or features in distantly related or unrelated organisms, often occurring when they occupy similar ecological niches or face similar environmental pressures 🦉 🍏