Bella Siemers

inactive here, find me on bluesky. PhD candidate @Zoology_SU and butterfly fanatic 🦋with a passion for photography

[Bella Siemers @b_siemers]

Happy to be part of this and grateful to the team @Guse_Lab for including me! Integrins rock 🪸

[Meghan Ferguson @micro_megs]

🚨New @Guse_Lab Preprint Alert!🚨 Integrins are key receptors involved in the phagocytosis of symbionts in cnidarians. This sheds light on the mechanisms of symbiosis establishment in coral reefs. A thread...
#coralreef
#aiptasia
#symbiosis https://t.co/vdA0GDy6yP

[Bella Siemers @b_siemers]

Honored to be recognized among such talented young scientists. Grateful to @ice2024kyoto_jp for this recognition!

[International Congress of Entomology 2024 Kyoto JP @ice2024kyoto_jp]

Yes......................!Cheers 🍻.
Winners of Presentation Awards for Young Scientists /for Women Scientists list here
https://t.co/ogQADFMqdB
#ice2024 #ice2024kyoto

[Department of Zoology @Zoology_SU]

Great work presented by members of the department at @ice2024kyoto_jp #ICE2024kyoto

[Loke von Schmalensee @vonSchmalensee]

Quantifying temperature’s effect on #diapause #termination requires fitting #TPCs to binary biological data. In our new paper, out now in #PNAS, we show how to do this, revealing the sequential nature of diapause termination and post-diapause development.

https://t.co/xy4WY6azLw

[Loke von Schmalensee @vonSchmalensee]

Detecting effects of biological correlations per se hinges on eliminating confounders. See our technical note on why confounding correlations among thermal performance traits with differences in marginal trait distributions can be misleading. https://t.co/Okir6BGOfn

[Samyuktha Rajan @SamyukthaRajan]

I’m so excited! My first-first author paper AND the first chapter of my PhD is now out in @CurrentBiology : ‘Translocated wild birds are predisposed to learn songs of their ancestral population’: https://t.co/9mjj7Cxp48

1/📖 Read on for a short description:

[Bella Siemers @b_siemers]

Glad to see this out 🦋

[Loke von Schmalensee @vonSchmalensee]

In our latest paper, led by @b_siemers and me, we demonstrate that four butterfly populations along a 750 km latitudinal cline display distinct local adaptation in their photoperiodic reaction norms, but /not/ in their thermal performance curves!

🦋🦋🦋

https://t.co/ewcLyxVNgf

[Department of Zoology @Zoology_SU]

Exciting research presented by members of the department yesterday at #NordicOikos2024. Posters by @b_siemers and Isabelle Resende and talks by @guasepulvedar and @MatsIttonen!

[Mats Ittonen @MatsIttonen]

Wondering where to go today at #NordicOikos2024? Maybe you'd like to hear about local adaptation during range-expansion and its ecological significance? Or perhaps you're curious to see whether I can squeeze my PhD thesis into 12 minutes? At 10 in Palaestra A.

[Department of Zoology @Zoology_SU]

Day 10: Merry CRISPRmas! 🧬🎄
@b_siemers and @ABShoshan investigate seasonal adaptations in butterflies using CRISPR/Cas9. The challenge: each tiny butterfly egg 🦋🥚 needs to be carefully injected with a very very thin needle 💉. No work for shaky hands! 🫣

[Department of Zoology @Zoology_SU]

Day 5: Kathi Schneider works on host-specific adaptations. The larvae of the comma butterfly (Polygonia c-album) can feed on four different orders of plants! Here is a picture of a female on nettle after oviposition. Can you spot the eggs? Photograph from @b_siemers

[Christopher Wheat @ChrisWWheat]

Looking for a postdoc, interested in butterfly population genomics? I'm looking for someone to write a grant with me, applying for a 2 year postdoc analyzing a wide assortment of genomic data from diverse species. Interested? email soon, I'm ready to write!

[Loke von Schmalensee @vonSchmalensee]

2/The two butterflies #Pieris rapae and P. napi are superficially very similar🦋

They are closely related, largely co-occur in space and time, share host plant preferences in the lab🍃

Yet, we found that they have vastly different population dynamics in their northern range ...

[Nature Communications @NatureComms]

Seasonality may impose evolutionary trade-offs, e.g. summer specialists may be maladapted to winter. @vonSchmalensee et al. show that two closely related, ecologically similar sympatric species partition fitness differently across seasons

https://t.co/14woqiO9SU

[Bella Siemers @b_siemers]

captured this hungry freshly eclosed small white (pieris rapae) last summer. can’t wait for the next field season 🦋📷 #fujifilmxt3

[Mats Ittonen @MatsIttonen]

Thanks to @drmatterpillar for his part in the technological development and @b_siemers for the sewing! We should probably patent that last version (although @Marjo__S pointed out that people in her group have previously come up with something very similar 🙃).

[Bella Siemers @b_siemers]

@Linegreis @DrRJWarren Looks great! 😍

[Department of Zoology @Zoology_SU]

A great first day at @ISBE2022! Many thanks to John Fitzpatrick and the rest of the organising committe!
@Stockholm_Uni #ISBE2022

[Bella Siemers @b_siemers]

A small white (pieris rapae) captured in flight #fujifilm