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Eric Hagen

@erichagen.bsky.social
571 followers 219 following 5 posts

Postdoc in the Sharbrough lab at UC Santa Barbara | Macroevolution, comparative methods, biogeography, polyploidy | Twitter: @EricHagen19

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Eric Hagen @erichagen.bsky.social · 15/06/2026
This work is out now in Plant-Environment Interactions! onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Bees as Ambassadors for Plant Awareness and Conservation
Due to “Plant Awareness Disparity” (PAD) people tend to be unaware of, uninformed, or uninterested in the plants around them. Because this phenomenon contributes to a lack of support for the conserva...
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Jeremy Cohen @drjerbs.bsky.social · 15/05/2026
We have a new perspective piece out about incorporating extreme heat in ecological research - academic.oup.com/icb/advance-...
academic.oup.com
Extreme Heat as the New Normal: A Methodological Roadmap Incorporating Behavior, Physiology, and Species Distributions
Abstract. A defining feature of climate change is the increasing frequency, intensity, and severity of extreme weather events. Among them, extreme heat is
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Eric Hagen @erichagen.bsky.social · 25/03/2026
Check out this new pre-print that covers a survey-based study of Plant Awareness Disparity! This work was led by undergraduate researcher Ari Hoffman, who was supervised by my postdoc advisor @TNCVasconcelos and me: ecoevorxiv.org/repository/v...
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Jamie Thompson @jamiet-42.bsky.social · 28/08/2025
Our new pre-print (with @erichagen.bsky.social, @latinorchidbot.bsky.social, @jameswclark.bsky.social , Elizabeth Forward and Nick Priest) reveals rapid pollinator evolution in orchids, but no clear impact on diversification. Perhaps pollinator specialisation is not such a powerful force. 🐝🌱
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Mike Barker @barkerms.bsky.social · 08/04/2025
The recording of last week's #PolyploidyWebinar featuring @raymondcast.bsky.social and @erichagen.bsky.social is now up! youtu.be/zmUyTO3jN6s
youtu.be
Polyploidy Webinar 2 April 2025
YouTube video by Mike Barker
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Mike Barker @barkerms.bsky.social · 29/03/2025
Join us on Wednesday, April 2 at 11 AM Pacific Time for the next #PolyploidyWebinar! The last webinar of the 24-25 season will feature @raymondcast.bsky.social and @erichagen.bsky.social! Sign up (if not already!) to get the zoom: www.barkerlab.net/polyweb
A flyer for the next Polyploidy Webinar on Wednesday, April 2, at 11 AM PDT. Featuring Raymond Castillo from Washington University presenting "Phylogenetic methods for modeling chromosome size and count" and Eric Hagen from the University of Toronto on "Using -SSE models to study diversification after neopolyploidy and paleopolyploidy"
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Shelly Gaynor @shellygaynor.bsky.social · 18/02/2025
It's here and ahead-of-print at @asn-amnat.bsky.social ! 🎉 Our 22-page polyploid coexistence model is now available: doi.org/10.1086/734411 This work wouldn’t be possible without NSF support—including funding from an NSF GRFP, an NSF PRFB, and NSF DMS & DBI grants. @soltislab.bsky.social l
doi.org
University of Chicago Press Journals: Cookie absent
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Orlando Schwery @oschwery.bsky.social · 05/01/2025
🚨New #phylo paper alert!🚨 🌲+🔥= speciation? This one has been a bit of a journey, but thanks to lead author Dan Turck's expertise on #conifers it has turned out as quite the treasure-trove of conifer evolution! (reading-access link on my website)
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Botanical Society of America @botsocamerica.bsky.social · 27/06/2024
🌱 From the upcoming #AJB #Polyploidy special issue 🌱 Investigating historical drivers of latitudinal gradients in #polyploid plant #biogeography: A multiclade perspective By Eric Hagen, Thais Vasconcelos, James Boyko & Jeremy Beaulieu doi.org/10.1002/ajb2... #botany #Solanaceae
Conceptual diagram of historical biogeographic patterns expected to be observed under the ‘centers of arrival’ hypothesis (on the left) and the ‘centers of polyploidization’ hypothesis (on the right). Under the ‘centers of arrival’ scenario, polyploidization occurs across the globe but is followed by higher rates of antiequatorial movement relative to diploids. Under the ‘centers of polyploidization’ scenario, we expect to see higher rates of polyploidization in poleward environments.
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Lee Hsiang Liow (廖珕庠) @lhliow.bsky.social · 21/11/2024
Revisiting fast-slow diversification rates with Rosana Zenil-Ferguson besjournals.onlinelibrary.wiley.com/doi/10.1111/... published @methodsinecoevol.bsky.social Plea to present uncertainty estimate and sources! and a tribute to GG Simpson
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James Boyko @jboyko.bsky.social · 18/11/2024
I wrote this about finding the optimal discrete character model structure. I hope this will be useful for empiricists. The main point is that relying only on the package default models is bad and can have nasty consequences or parameter estimates and ASR. www.biorxiv.org/content/10.1...
a potential nasty consequence. these are profile likelihoods for a default model (b/d) and a more model (a/c). (b/d) is what you'd get fitting a standard Pagel model with ARD. You get these horrible likelihood ridges for parameter estimates (e.g., b. theta4). But for the same dataset, there is a slightly non-standard model (non-standard in the sense of it's not ER/SYM/ARD) that has really nice statistical behavior
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Eric Hagen @erichagen.bsky.social · 16/11/2024
Hello Bluesky. Please enjoy my favorite nature documentary: youtu.be/4b35nYXVNKI?...
youtu.be
Sexual Encounters of the Floral kind
YouTube video by Kim Parker
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