Mastodawn

RE: https://mastodon.green/@plazi_species/115904831661478242

How can allopatric #speciation lead to the #radiation of #newspecies, and how can #research succeed in reconstructing such mechanisms? #Cryptic #complexes such as the #Hemiphyllodactylus #harterti-complex (#Gekkonidae) can be revealing.

Z. Hong et al. (2026) #phylogenetically identified two new species by using the #mitochondrialgene #ND2. The #ancestral #population of the complex is thought to have diverged in the Middle #Oligocene and radiated from there throughout #Malaysia.

rsp Dec 14

I've been a student of speciation and species concepts for 40 years, so I'm surprised that I cannot recall or find a term that refers specifically to two or more species between which limited gene flow occurs--species that hybridize while remaining distinct. Does it exist?
#evolution #speciation

giuseppe leanzA Dec 12

every individuaL belongs to the same specieS of their parentS

Isn’t it trivial?
What’s wrong with that sentence, if we take it as a definition of species membership?

What’s wrong is that it’s revolutionary.
It contradicts the current definition of species, or at least what remains of it after all the attempts to keep it usable despite hybrids such as turtles with complex patterns of fertility.
#biology

#taxonomy

#genetics

#speciation

#science
#scienceMastodon

Radical Anthropology Nov 10

Key article from a year ago with Meneganzin and Stringer on #speciation

https://academic.oup.com/evolinnean/article/3/1/kzae033/7900502?login=false

Lucas Marie-Orleach Oct 26

New meta-analysis out on the role of sexual selection in speciation!

Across the Animal kingdom, we found that stronger sexual selection is significantly (though weakly) associated with greater species richness in comparative studies — suggesting a modest role for sexual selection in speciation.

A great collaboration with Tim Janicke, Jeanne Tonnabel, Tamra Mendelson & Mike Ritchie.

https://doi.org/10.1093/evlett/qraf038

#Evolution #Speciation #SexualSelection #MetaAnalysis

Sexual selection and speciation: a meta-analysis of comparative studies

Abstract. Understanding the drivers of biodiversity is a central goal in evolutionary biology. In particular, sexual selection has long been proposed as a

OUP Academic

Universität Bern Oct 15

Even seemingly small ecological differences can spark the evolution of new species: a study from #unibern shows that in sticklebacks, the mere presence of another fish species is enough to produce different forms — and thus, new species. https://mediarelations.unibe.ch/media_releases/2025/media_releases_2025/creation_of_new_species/index_eng.html
@snf_ch
#Evolution #Biodiversity #Speciation

Ars Technica News Sep 26

Fiji’s ants might be the canary in the coal mine for the insect apocalypse https://arstechni.ca/XYrb #speciation #evolution #Science #Biology #insects #ants #Fiji

Fiji’s ants might be the canary in the coal mine for the insect apocalypse

A new genetic technique lets museum samples track population dynamics.

Ars Technica

American Naturaliﬆ Sep 17, 2025

Till Selection Do Us Part? Testing Sexual Selection’s Role in Speciation
Summary & Analysis by Pooja Radhakrishnan of "Evolutionary lability of sexual selection and its implications for speciation and macroevolution" by Januario et al.
https://www.amnat.org/an/newpapers/April-2025-Januario.html

#Speciation #SexualSelection #Macroevolution #EEB

Till Selection Do Us Part? Testing Sexual Selection’s Role in Speciation

Read about “Evolutionary lability of sexual selection and its implications for speciation and macroevolution” by Matheus Januario, Renato C. Macedo-Rego, and Daniel L. Rabosky (April 2025) Januario et al. found no correlation between sexual selection intensity & speciation rates or proxy traits (SSD and dichromatism). Because sexual selection intensity has high intraspecific variation and low phylogenetic signal, its macroevolutionary impacts are weak

GQE-Le Moulon Sep 3, 2025

⚠️ Postdoctoral position at @lemoulon : mechanisms of reproductive isolation between crops and their wild relatives ⚠️

➡️ Location : @ideev.lab @universite_paris_saclay
Department : Quantitative Genetics and Evolution

➡️ Open and close dates: August 2025 until filled (will begin reviewing applications immediately).

➡️ https://moulon.inrae.fr
➡️ https://www.ideev.universite-paris-saclay.fr/news/2025/09/postdoctoral-scholar-position-mechanisms-of-reproductive-isolation-between-crops-and-their-wild-relatives-at-gqe-le-moulon/

#evolutionarygenomics #domestication #speciation #incompatibilities #plant @maudten #job #postdoc #emploi #postdoctoral #maudtenaillon

michael Aug 25, 2025

20-Aug-2025
Most known species evolved during 'explosions’ of diversity, shows first analysis across ‘tree of life’
Majority of living species concentrated among few disproportionately rich groups with high rates of diversification, shows first-of-its-kind study

https://www.eurekalert.org/news-releases/1094699

#science #ecology #evolution #biodiversity #speciation