Eryn McFarlane's Avatar

Eryn McFarlane

@erynmcfarlane.bsky.social

Happy assistant professor, mom, and pet mama. Working on hybridization of Scottish deer, American simulations, finally thinking about Canadian mice and butterflies. she/her https://www.yorku.ca/science/profiles/faculty/eryn-mcfarlane/

1,173 Followers  |  550 Following  |  159 Posts  |  Joined: 25.09.2023
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Posts by Eryn McFarlane (@erynmcfarlane.bsky.social)

I'm trying a new "see how well AI image gen is" test. This time I'm going to ask it to draw a map of the world, and then zoom in to Europe, the UK, Yorkshire and York to see when things start to get hazy.

All of these are with the free models using the smart/thinking variants. 1/n

27.01.2026 12:03 β€” πŸ‘ 148    πŸ” 60    πŸ’¬ 4    πŸ“Œ 52

Yes, clever! I do worry that not everyone has this level of self reflection, I'm not even sure that I do all the time if I look at something and tell myself 'sure, makes sense'.

09.01.2026 15:37 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I'm so back and forth on this. I think it really does depend on the student's level of subject matter expertise. If they can tell that AI is giving them nonsense [writing or code], then they might be okay. If they can't tell, because they're supposed to be answering themselves, then it's problematic

08.01.2026 19:48 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1

This is so cool!

13.12.2025 01:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

πŸ§ͺ

05.12.2025 16:37 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Anthropogenic factors explain wing colour variation in Colias (Lepidoptera: Pieridae) butterflies across the Toronto urbanization gradient Hybridization, or interbreeding between two previously diverged populations, is increasing due to human influences on the environment. Rates of hybridization might be increasing particularly quickly a...

Amanda Sabatino, @jpjahner.bsky.social and I have a new paper on @biorxiv-evobio.bsky.social. Amanda, in her undergraduate thesis work, found variation in Colias colour phenotypes is associated with different metrics of urbanization in Toronto. www.biorxiv.org/content/10.1...

19.11.2025 19:10 β€” πŸ‘ 12    πŸ” 7    πŸ’¬ 0    πŸ“Œ 0
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We’re scientists who study sex and gender. Here’s what Trump gets wrong about trans people OPINION: Despite what President Trump would have you believe,Β transgender people are a natural part of the human species, Joan Roughgarden and Jaimie Veale write.

For so long, they said gays & lesbians were freaks who must be suppressed & converted. They lost that fight.

Now they’re saying the same about trans people.

Like gays & lesbians, trans people have been in all societies forever. They’re part of the natural order. Deal with it.

19.11.2025 15:44 β€” πŸ‘ 125    πŸ” 41    πŸ’¬ 3    πŸ“Œ 1

This is horrific, I'm so sorry. Congrats on your DPhil, Dr. Turner.

17.11.2025 19:54 β€” πŸ‘ 59    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I'm following this for sure.

06.11.2025 17:54 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Colour-ringed long-tailed tit

Colour-ringed long-tailed tit

🚨 Come join the fantastic long-tailed tit team 🚨
🐦We are recruiting a field technician to collect behavioural data on a long-term studied population of wild long-tailed tits (passerine birds).
πŸͺΆ20 months contract in Sheffield, UK.
🌲Deadline: 23/11/2025.
jobsite.sheffield.ac.uk/job/Technici...

05.11.2025 09:32 β€” πŸ‘ 49    πŸ” 49    πŸ’¬ 2    πŸ“Œ 0
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Postdoctoral researcher in molecular ecology - Uppsala University Postdoctoral researcher in molecular ecology, Department of Ecology and Genetics, Uppsala University

πŸ“’ We have an open position for a postdoc to join my lab. It's a great position @animecol-uu.bsky.social, fully salaried for 2.5 years with all benefits.

www.uu.se/en/about-uu/...

The project is about transmission patterns of bacteria and antimicrobial resistance (AMR) in aquatic insects. 🧬🦠 (1/3)

27.10.2025 07:43 β€” πŸ‘ 69    πŸ” 78    πŸ’¬ 2    πŸ“Œ 3

ooh, thank you! looks cool!

21.10.2025 18:18 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Hybridization and speciation* Abstract. Hybridization has many and varied impacts on the process of speciation. Hybridization may slow or reverse differentiation by allowing gene flow a

This is a great, if dense, overall primer on hybridization and speciation academic.oup.com/jeb/article/...

21.10.2025 16:15 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

πŸ§ͺ

10.10.2025 16:02 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Yelling at the TV about random, useless, absolutely spurious stats is one of my great joys in watching baseball. Isn't this why we watch?

06.10.2025 14:18 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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I get that the news cycle is packed right now, but I just heard from a colleague at the Smithsonian that this is fully a GIANT SQUID BEING EATEN BY A SPERM WHALE and it’s possibly the first ever confirmed video according to a friend at NOAA

10 YEAR OLD ME IS LOSING HER MIND (a thread 🧡)

24.09.2025 20:30 β€” πŸ‘ 29707    πŸ” 9984    πŸ’¬ 727    πŸ“Œ 1547

I love a magic trait! I feel like @qvarnstromlab.bsky.social instilled the joy of these in me.

22.09.2025 15:40 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Right? It's delightful to be surprised like this.

03.09.2025 18:33 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This sounds so weird! I love it.

03.09.2025 16:43 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

πŸ§ͺ postdoc in Toronto in a very cool lab!

27.08.2025 14:16 β€” πŸ‘ 5    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
This infographic describes the main results from a survey of members of 14 scientific societies. There is a pie chart showing that both academic (58%) and non-academic (42%) responded to the survey. It lists statistics: 85% of respondents reported uncertainty about the future; 71% reported federal training programs were "very" or "extremely important"; 83% reported negative impacts or irreparable harm on their field of science. There is a word cloud summarizing open-ended responses with the largest words "student research fund federal grant". Eight major themes in the responses are listed: disruption of research with societal important; concerns of closure of the USGS Bird Banding Lab; Early Career Bottleneck; Restricted Freedoms including travel and speech; Decline in Government Efficiency and Expertise; Concerns about Biased/Removed Data and Data Gaps; Concerns about the Ability to Meet Legal Mandates; and From Positive Impact to Irreparable Harm. There are icons for each participating society and a QR code for website and data availability.

This infographic describes the main results from a survey of members of 14 scientific societies. There is a pie chart showing that both academic (58%) and non-academic (42%) responded to the survey. It lists statistics: 85% of respondents reported uncertainty about the future; 71% reported federal training programs were "very" or "extremely important"; 83% reported negative impacts or irreparable harm on their field of science. There is a word cloud summarizing open-ended responses with the largest words "student research fund federal grant". Eight major themes in the responses are listed: disruption of research with societal important; concerns of closure of the USGS Bird Banding Lab; Early Career Bottleneck; Restricted Freedoms including travel and speech; Decline in Government Efficiency and Expertise; Concerns about Biased/Removed Data and Data Gaps; Concerns about the Ability to Meet Legal Mandates; and From Positive Impact to Irreparable Harm. There are icons for each participating society and a QR code for website and data availability.

Today 14 scientific societies in #ecology #evolution and #marineScience are publishing the results of a survey that finds negative impacts of federal policies on food security, flood mitigation, infectious disease preparedness, and wildlife conservation: πŸ§ͺπŸ‘©β€πŸ”¬ www.firsthandaccounts.org/impacts/2025...

25.08.2025 12:55 β€” πŸ‘ 96    πŸ” 85    πŸ’¬ 2    πŸ“Œ 7

I love city fieldwork. 17 colias samples today and back at my best for a late lunch and a student’s thesis to edit. #fieldwork #humblebrag

25.08.2025 17:52 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I've immediately passed this on to my lab and my co-instructors. Thank you for this.

22.08.2025 17:48 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Editorial: Accountability, voice, and trust - responsible use of GenAI in scientific publishing Over the last few years, the development and rapid advancement of Generative Artificial Intelligence (GenAI) and Large Language Models (LLMs) such as ChatG

Many of us are using LLMs in coding and scientific writing. They are very helpful tools, but we need to be thoughtful as we integrate them into our work flows to preserve accountability, voice and trust. academic.oup.com/evlett/advan.... An editorial at @evolletters.bsky.social for discussion:

22.08.2025 12:52 β€” πŸ‘ 70    πŸ” 33    πŸ’¬ 2    πŸ“Œ 3

@hybridzones.bsky.social and @jenncoughlan.bsky.social - this looks super cool! Definitely on the to-read list.

18.08.2025 02:53 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

I need to say this loudly for those in the back. Shirley Chen was an undergraduate student in my lab. She is an incredible scholar, and so are many of the undergraduates that I get to interact with. Undergraduates are doing incredible research at @york-university.bsky.social.

13.08.2025 16:56 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

We suggest a careful use of structural equation models to account for many mechanisms to test the relationship between the latent variables (diversity and disease) that we're really interested in.

13.08.2025 16:56 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Additionally, because there are so many component mechanisms involved in a net diversity-disease relationship, cancelling out is often considered more likely than a lack of relationship.

13.08.2025 16:56 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

We found that, as they're usually stated, amplification and dilution are not falsifiable hypotheses. Often, when they're tested, there are ad hoc explanations that are brought in to protect these hypotheses. Null hypotheses are not taken as support for a lack of relationship.

13.08.2025 16:56 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Reappraisal of the Dilution and Amplification Effect Framework: A Case Study in Lyme Disease The biodiversity–disease relationship posits two hypotheses: the dilution effect (where there's a negative relationship between biodiversity and disease risk) and the amplification effect (where ther...

Shirley Chen's paper from my lab on the dilution and amplification hypotheses regarding the biodiversity-disease relationship.
onlinelibrary.wiley.com/doi/10.1002/...

13.08.2025 16:56 β€” πŸ‘ 10    πŸ” 5    πŸ’¬ 2    πŸ“Œ 0