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Qvarnström Lab @qvarnstromlab.bsky.social · 17/02/2026

Last week the annual @animecol-uu.bsky.social symposium, 'Revolution', counted with several presentations from the students and researchers in our lab! Yishu Zhu, Ana Gomes, Sophia Stratton, Michaëla Berdougo, and Anna Qvarnström presented the most recent updates on the flycatchers work!

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Ana Cristina Gomes @anacrgomes.bsky.social · 12/12/2025

Master Projects available in the Qvarnström lab @qvarnstromlab.bsky.social studying climate adaptation and speciation using a natural flycatcher hybrid zone on Öland, Sweden! Check available projects here 👇👇 drive.google.com/file/d/1B69x...

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Qvarnström Lab @qvarnstromlab.bsky.social · 23/05/2024

A new MSc fledging the lab. Congrats Jonavan!

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Qvarnström Lab @qvarnstromlab.bsky.social · 20/05/2024

And the 2024 field crew is now complete and ready to measure a few hundred flycatcher pairs and their nestlings! The woods are beautiful and full of birds who are currently very busy building nests and laying eggs! #olandflycatcheryear23 @muriellealund.bsky.social @jacanajones.bsky.social 🧪🌍🐦🪶

Students and researchers from the 2024 flycatcher monitoring field season sit around a table for dinner .

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Qvarnström Lab @qvarnstromlab.bsky.social · 23/04/2024

Yishu Zhu presents her PhD's half time seminar @animecol-uu.bsky.social, summarizing her research questions, results & plans for the end of her thesis.Let's dive into high resolution metabolic measurements, evolution of mito-nuclear incompatibilities & divergent climate adaptation in flycatchers🪶🧪🌍

Yishu Zhu in front of a slide with a map of breeding ranges of pied and collared flycatchers and pictures of males of both species as well as an F1 hybrid

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Murielle Ålund (she/her) @muriellealund.bsky.social · 16/02/2024

Congrats to Jing Jonavan Leong on presenting his master thesis research on the effect of temperature on growth rate in collared, pied and hybrid flycatcher nestlings. @qvarnstromlab.bsky.social @animecol-uu.bsky.social 🧪🪶🌍🐛🌡️📈 evolution

Jonavan posing in front of his poster on the effect of temperature on Ficedula nestling growth

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Murielle Ålund (she/her) @muriellealund.bsky.social · 16/02/2024

Flycatchers next: Yishu Zhu showed exciting results on mitochondrial performance in relation to competition in nestlings & I spoke about the molecular basis of interactions between sperm & reproductive tract fluid in these hybridizing birds @qvarnstromlab.bsky.social @animecol-uu.bsky.social 🧪👩🏼‍🔬🪶🌡️🐛

Yishu Zhu in front of a slide showing the breeding distribution of collared and pied flycatchers and their hybrids

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Murielle Ålund (she/her) @muriellealund.bsky.social · 15/02/2024

Sexual selection can be good, bad & ugly with negative consequences of sexual conflict for population demographics. David Berger @dbergerbiol.bsky.social shows that these effects may be reversed when environmental complexity is considered. onlinelibrary.wiley.com/doi/full/10.... 🌍🧪evolution

onlinelibrary.wiley.com

Environmental complexity mitigates the demographic impact of sexual selection

Ecology Letters is a broad-scope ecology journal considering all taxa, in any biome and geographic area, and spanning community, microbial & evolutionary ecology.

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Murielle Ålund (she/her) @muriellealund.bsky.social · 16/02/2024

@elinvidevall.bsky.social 🧪🦠 evolution Elin is looking for a PhD student @animecol-uu.bsky.social , check her page!

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Murielle Ålund (she/her) @muriellealund.bsky.social · 15/02/2024

Anna Qvarnström @qvarnstromlab.bsky.social presents: "inheritance of wealth" (territory quality) in collared flycatchers.We looked at phenotypic & genomic predictors of resource acquisition over 20years on Öland. Work under review together with @erynmcfarlane.bsky.social & many others. 🧪🌍🪶Evolution

Anna Qvarnström in front of s title slide with a picture of a collared flycatcher and the title "inheritance of wealth in a natural population"

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Murielle Ålund (she/her) @muriellealund.bsky.social · 15/02/2024

Uppsala Uni's Animal Ecology program is here, give it a follow! Our annual symposium is on its way, highlighting the diversity in amazing research on all things evolution, covering insects, birds, fish, mammals, reptiles, amphibians & their relationships with plants, microbes & viruses. 🧪🌍🪶🐙🦑🐯🌿🦠🦎🧬

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Murielle Ålund (she/her) @muriellealund.bsky.social · 30/12/2023

New paper: "Synthesis and Scope of the Role of Postmating Prezygotic Isolation in Speciation",where we review mechanisms & importance of barriers acting after mating before fertilization in promoting &/or maintaining species divergence. 🧪🌍🪶🦑🌿🐯🐙#evolution m.cshperspectives.cshlp.org/content/earl...

m.cshperspectives.cshlp.org

Cold Spring Harb Perspect Biol | Mobile

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Alexei Maklakov @alexeimaklakov.bsky.social · 15/12/2023

Germline removal increased stress resistance in both sexes, but increased lifespan only in males, and only when high costs of mating were excluded (above). Germline removal reduced growth but more so in females. Germline maintenance seems costlier for males than for females. 2/2

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Qvarnström Lab @qvarnstromlab.bsky.social · 12/12/2023

Congrats on your master degree Nicholas!

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Qvarnström Lab @qvarnstromlab.bsky.social · 27/11/2023

New paper out at #evolution: "Tracking hybrid viability across life stages in a natural avian contact zone" Group effort taking advantage of our rare dataset tracking hybrids for nearly 2 decades, and comparing their performance to pied & collared flycatchers across their whole life. 🧪🪶🌍

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William Jones @jacanajones.bsky.social · 14/11/2023

The Qvarnström Lab is here! Follow for all the latest research from them! 🧪🦅🌏

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Qvarnström Lab @qvarnstromlab.bsky.social · 14/11/2023

#HiSciSky! We @ Qvarnström Lab study speciation & hybridization in wild birds, #evolution of reproductive barriers, adaptation to climate change, metabolism, fertilization & more, using long term monitoring & experiments with flycatchers. 🧪🌍🪶👩🏼‍🔬 #AcademicSky Posts mostly by @muriellealund.bsky.social

2 birds: on the left, a female collared flycatcher on her nest, incubating blue eggs. On the right, a collared flycatcher male

A clutch of 5 flycatcher nestlings in their nest in a nestbox. These are about 10 days old.

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