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Jesse Czekanski-Moir

@jessecm

Ecology, Evolutionary Biology, Biogeography, ConBio; Ants, Land Snails, & sundry invertebrates, often in Belau (Palau), Micronesia; PhD from SUNY-ESF; future uncertain jessecm.org

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07.09.2023
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Latest posts by Jesse Czekanski-Moir @jessecm

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There is No Consensus on Biological Sex At this critical moment when misinformation about sex is being applied to policy globally, scientific clarification on the definition of biological sex is valuable. Here, we evaluate the primary appr...

New paper out in ecology letters! with @andylee.bsky.social @allydefduf.bsky.social

We synthesized the active debate on how scientists define sex, including limitations and assumptions. We believe this discussion will lead to more accurate science.

onlinelibrary.wiley.com/doi/10.1111/...

06.03.2026 20:14 ๐Ÿ‘ 59 ๐Ÿ” 32 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 1
Quantifying the Impact of Fossil Age on Reconstructing Trait Evolution Using Phylogenetic Comparative Methods

๐Ÿ“ข Including fossil tips in your phylogeny can double your continuous trait model fitting accuracy!

Updated preprint out now on @ecoevorxiv.bsky.social.

๐Ÿ”— doi.org/10.32942/X27...

with @pedrolgodoy.bsky.social @macroecoevoale.bsky.social and @bethanyjallen.bsky.social

06.03.2026 19:00 ๐Ÿ‘ 34 ๐Ÿ” 19 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
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๐Ÿ“ขLow Coverage Genome and Ultraconserved Element Workshop at Washington State University!

๐Ÿ‘ฅTarget participants: Grad students and postdocs

๐Ÿ“†When: June 7-13, 2026

โณApplication deadline: March 16, 2026, link in bio

05.03.2026 20:29 ๐Ÿ‘ 3 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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Why do some islands have more biodiversity than others? In our new paper, published in @ecography.bsky.social , we sought to answer this question for amphibians! ๐ŸŒ๐Ÿ๏ธ๐Ÿธ

@provete.bsky.social @agenciafapesp.bsky.social @wileyecology.bsky.social

Follow the thread ๐Ÿงต(1/7).

27.02.2026 10:37 ๐Ÿ‘ 38 ๐Ÿ” 10 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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Flexible methods for species distribution modeling with small samples vist.ly/4rq4e #SDM #MaxEnt #NicheModels

16.02.2026 09:24 ๐Ÿ‘ 16 ๐Ÿ” 6 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

We need a geom_snake(...)

#rstats #DataViz #ggplot2

05.03.2026 07:33 ๐Ÿ‘ 19 ๐Ÿ” 4 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0

Big effort, exciting results - our paper on the constraints of thermal limits in tropical insects is now out in @nature.com! ๐Ÿฆ‹๐Ÿ๐Ÿชฐ๐Ÿชฒ๐Ÿฆ—
@ecoresearchzoo3.bsky.social
@biologie-uniwue.bsky.social
@uni-wuerzburg.de

04.03.2026 19:43 ๐Ÿ‘ 79 ๐Ÿ” 32 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 3

Final version @nature.com of our paper describing unconventional multicellular development in a choanoflagellate inhabiting an extreme environment. A ton of new data since the first @biorxivpreprint.bsky.social preprint (which we've kept updating).

A brief ๐Ÿงต (carried over from the old place)

28.02.2026 08:12 ๐Ÿ‘ 339 ๐Ÿ” 137 ๐Ÿ’ฌ 16 ๐Ÿ“Œ 16
Post-Doctoral Associate Job Description Summary Organization's Summary Statement: The Department of Biology at the University of Maryland, College Park seeks applications for three quantitative biology postdoctoral fellow po...

Exciting announcement! My new department is launching a postdoc fellowship in quantitative biology. Fellows will be co-advised by two Bio faculty, one that is quant focused (not me) and one that is not (me???). I would love to co-sponsor a postdoc and build a collaboration so please reach out!

11.02.2026 15:54 ๐Ÿ‘ 34 ๐Ÿ” 43 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 1
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Methods for knowledge-based biodiversity monitoring and management under uncertainty (BioM) - UiO:Life Science BioM develops new interdisciplinary methods to model and govern biodiversity under uncertainty, combining ecology, statistics, and philosophy. The project delivers predictive tools, normative framewor...

2 PhD & 1 postdoc available at BioM in Oslo
www.uio.no/english/rese... Interdisciplinary methods to model and govern biodiversity under uncertainty. Re-post widely! Work with statistical ecologists Olav Skarpaas (Natural History Museum Oslo @uio.no) @t-ergon.bsky.social

28.02.2026 14:10 ๐Ÿ‘ 17 ๐Ÿ” 25 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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All are invited for this UC Berkeley-UC Merced-California Fire Science Consortium talk ๐Ÿ”ฅ๐ŸŒฑ
Thank you CFSC for the flier ๐Ÿ˜ฎโ€๐Ÿ’จ #fire #wildfire #Indigenous #california

27.02.2026 19:34 ๐Ÿ‘ 9 ๐Ÿ” 6 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
screenshot of the "filters" tab on a search for all observations of the genus Tridacna on iNaturalist, showing different options including a checked box next to "research grade" and "CC0" selected in the "Photo licensing" pull-down menu

screenshot of the "filters" tab on a search for all observations of the genus Tridacna on iNaturalist, showing different options including a checked box next to "research grade" and "CC0" selected in the "Photo licensing" pull-down menu

just as a PSA to anyone this might be useful for: you can filter searches in iNat by CC licensing, so you can view all phot observations that are free to use. Maybe less AI content up there... for now... although photo quality often includes less beautifully framed images, less clear water, etc...

27.02.2026 20:03 ๐Ÿ‘ 6 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I at least understand the temptation to use AI to generate images that don't exist... like a clam jousting with a brachiopod, etc, but using it for something so redundant (and getting it spectacularly wrong!)... ugh

27.02.2026 19:55 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

but seriously, just *why.* as someone who has searched for images of Tridacna before, there are soooo many amazing photos of the real animals!

27.02.2026 19:52 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
An screenshot of an image from Adobe stock which purports to be of "mantle details of Tridacna giant clam shell marine" (text below image) but which actually shows an illustration of a sort of frilly multi-layered fleshy skirt-looking thing in vaguely brown and blue Tridacna-like colours

An screenshot of an image from Adobe stock which purports to be of "mantle details of Tridacna giant clam shell marine" (text below image) but which actually shows an illustration of a sort of frilly multi-layered fleshy skirt-looking thing in vaguely brown and blue Tridacna-like colours

This is your reminder that stock image sources cannot be trusted as sources for biology any more because what the hell is this shit? I searched "Tridacna" in DuckDuckGo with options to hide AI images and the global AI killswitch turned on. This is on the first page of results

27.02.2026 18:47 ๐Ÿ‘ 14 ๐Ÿ” 7 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 1

clearly just the phenotypic consequences of a whole genome duplication event

27.02.2026 19:29 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Genomic Perplexity and the Evolution of Context-Dependent Function Abstract. The fundamental principle that selection acts on a geneโ€™s function often assumes implicitly that this function is fixed and intrinsic. However, e

New paper out in MBE! ๐Ÿงต
"Genomic Perplexity and the Evolution of Context-Dependent Function"
The big idea: genes don't have fixed functions. Function emerges from context - genomic, cellular, environmental. And we can quantify this. academic.oup.com/mbe/article/...

27.02.2026 10:45 ๐Ÿ‘ 61 ๐Ÿ” 17 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 0
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Quite rare to see a chart that says quite so overtly that no one involved has the slightest clue whatโ€™s happening here

26.02.2026 09:15 ๐Ÿ‘ 3394 ๐Ÿ” 603 ๐Ÿ’ฌ 221 ๐Ÿ“Œ 386

Government enforcement of an individual's gene-to-phenotype mapping on the basis of normative and essentialist arguments is eugenics. If you don't see how dangerous that is you know nothing about biology.

26.02.2026 16:28 ๐Ÿ‘ 27 ๐Ÿ” 8 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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In Myanmarโ€™s limestone hills, people and bats are often too close for comfort Limestone karst is like an island. Each rocky formation rises distinctly out of the surrounding landscape. Over time, an array of highly specialized species, each adapted to that particular landformโ€™s...

news.mongabay.com/2026/02/in-m...

26.02.2026 05:25 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

...and eventually the most long awaited starter pack: the one to connect all those interested in molluscs! Please message me if you prefer to opt out or if you wish to suggest new members (just briefly add the reason) go.bsky.app/Eh4qpKr

26.02.2026 12:05 ๐Ÿ‘ 18 ๐Ÿ” 8 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
seminar announcement with photos of speakers and talk titles

seminar announcement with photos of speakers and talk titles

The integration of speciation seminar series is restarting, with the first session coming up on *Tuesday March 3rd @ 5pm CET*, featuring two talks by @naturalselection.bsky.social and @andreaestandia.bsky.social + career Q&A with @markravinet.bsky.social as part of the ECR in Speciation theme.

25.02.2026 16:29 ๐Ÿ‘ 31 ๐Ÿ” 20 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
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Best practices for moving from correlation to causation in ecological research - Nature Communications Different scientific traditions offer seemingly disparate approaches to inferring causal relationships in ecological systems. This Perspective unifies the causal assumptions and methods from...

Excited to share our new paper in @natcomms.nature.com We synthesize causal discovery & inference approaches across traditions (regression adjustment, quasi-expts, SEMs, Granger causality, convergent cross-mapping, and more) into a unified workflow for ecologists. www.nature.com/articles/s41...

24.02.2026 17:25 ๐Ÿ‘ 159 ๐Ÿ” 63 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 6
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Born #onthisday in 1868, the US sociologist + civil rights activist W. E. B. Du Bois. Celebrate with a look at the stunning hand-drawn "infographics" he made with his students, depicting conditions of African-American life in 1900: publicdomainreview.org/collection/w... #otd #BlackHistoryMonth

23.02.2026 12:45 ๐Ÿ‘ 670 ๐Ÿ” 253 ๐Ÿ’ฌ 14 ๐Ÿ“Œ 23
Join the Early Career Biologist Support Network Discord Server! Check out the Early Career Biologist Support Network community on Discord - hang out with 3 other members and enjoy free voice and text chat.

Are you an early career biologist seeking a position (Masters up to faculty)? I have talked to so many people who feel alone, like they don't have resources, or who are seeking community during this difficult time in the job market. I created a Discord community to help. discord.gg/nmktHJhUPH

21.02.2026 18:25 ๐Ÿ‘ 42 ๐Ÿ” 39 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
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One hundred unanswered questions on the dispersal ecology of fungi Abstract. Fungi comprise millions of species that play numerous varied roles in Earthโ€™s natural and managed ecosystems, engaging in a multitude of positive

New paper out today in the ISME | International Society for Microbial Ecology Journal and the first product from our ESIIL (Environmental Data Science Innovation and Impact Lab) working group on Fungal Dispersal. Check it out!

academic.oup.com/ismej/advanc...

19.02.2026 22:24 ๐Ÿ‘ 28 ๐Ÿ” 15 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
Post-Doctoral Associate Job Description Summary Organization's Summary Statement: The Department of Biology at the University of Maryland, College Park seeks applications for three quantitative biology postdoctoral fellow po...

Three postdoctoral fellowships in quantitative biology are available as part of a new Quantitative Biology Initiative in the Department of Biology at the University of Maryland.

Best consideration date: 3/14

Job Ad:
umd.wd1.myworkdayjobs.com/en-US/UMCP/j...

Department:
biology.umd.edu/people

19.02.2026 02:49 ๐Ÿ‘ 26 ๐Ÿ” 36 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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New preprint on a new diversity-dependent biogeographic diversification model using deep learning. Joint work with my amazing advisor @landismj.bsky.social. Details of the paper in the comment section. #evobio
www.biorxiv.org/content/10.6...

18.02.2026 23:26 ๐Ÿ‘ 16 ๐Ÿ” 8 ๐Ÿ’ฌ 14 ๐Ÿ“Œ 1
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ECR feature: Rohit Subhedar Rohit is a PhD student at the National Centre for Biological Science, India, and New Mexico State University, U.S.A. He is an ecologist with special focus on the impact of top-down factors on savanโ€ฆ

First ECR Feature of 2026! PhD student at New Mexico State University, Rohit Subhedar, talks about his recent work on the often overlooked tree-tree interactions in shaping savannas, by assessing tree spatial distributions in a south Indian savanna. Read more about his work in our Q+A here:

18.02.2026 18:50 ๐Ÿ‘ 2 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Remoteโ€Control Science in Ecology: A Hidden Face of Scientific Neocolonialism We introduce the concept of โ€œremote-control scienceโ€ as a modern form of scientific neocolonialism in ecology, where researchers, preferably from the Global North, control projects in the Global Sout...

Essential reading for conservation scientists & ecologists (in fact anyone doing science across borders!) ๐ŸŒ๐Ÿงชhttps://onlinelibrary.wiley.com/doi/10.1111/ele.70227?af=R

Remote-control science is an internet-enabled form of "parachute" science

FWIW, I see a lot of this in AI and macroecology research

18.02.2026 12:03 ๐Ÿ‘ 27 ๐Ÿ” 9 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1