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Jonathan Chase

@jon-chase03.bsky.social
3.9K followers 393 following 40 posts

Ecologist; Biodiversity Synthesis Professor @idiv; Dad

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Reposted by Jonathan Chase
iDiv Biodiversity Research @idiv-research.bsky.social · 05/06/2025
BioTIME 2.0 - the largest biodiversity time-series database - now spans 12 million records from 553,000 locations, tracking ecosystem changes since 1874! 📊 www.idiv.de/major-update... @uniofstandrews.bsky.social @idiv-research.bsky.social @erc.europa.eu @jon-chase03.bsky.social
idiv.de
Major update to BioTIME 2.0, world’s largest biodiversity time-series database
BioTIME 2.0 is the largest biodiversity time-series database on the planet and gives unprecedented insight into global biodiversity.
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Jonathan Chase @jon-chase03.bsky.social · 15/05/2025
While 'flashy' papers are great, analyses are ephemeral. It's the data, its preservation and organization that will persist. Honored to be involved with this amazing team on what I think are some of the most important biodiversity data out there. BioTime v 2.0.
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Reposted by Jonathan Chase
Martin A. Nuñez @martin-nunez.bsky.social · 13/03/2025
What a wonderful paper!! Really clear results and extremely important research!! I will use it in my classes Congrats Thiago Gonçalves-Souza @natejsanders.bsky.social @jon-chase03.bsky.social @nickhaddad.bsky.social www.nature.com/articles/s41...
nature.com
Species turnover does not rescue biodiversity in fragmented landscapes - Nature
An analysis of habitat fragmentation using a dataset of more than 4,000 species worldwide shows that fragmentation reduces biodiversity at all scales, and that increases in β diversity do not compensa...
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Reposted by Jonathan Chase
Nick Haddad @nickhaddad.bsky.social · 12/03/2025
Our paper led by Thiago Gonçalves-Souza is out. Habitat fragmentation and habitat loss reduce biodiversity. @natejsanders.bsky.social Results from 37 studies distributed worldwide, on plants and animals, comparing continuous and fragmented landscapes. www.nature.com/articles/s41...
nature.com
Species turnover does not rescue biodiversity in fragmented landscapes - Nature
An analysis of habitat fragmentation using a dataset of more than 4,000 species worldwide shows that fragmentation reduces biodiversity at all scales, and that increases in β diversity do not compensa...
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Jonathan Chase @jon-chase03.bsky.social · 12/03/2025
Thanks Rob, for writing such a great News & Views about our paper! A huge honor (or I guess I should write honour given your new position) to have your thoughts!
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Jonathan Chase @jon-chase03.bsky.social · 24/06/2024
Is fragmentation bad or good for biodiversity? Yes! We use a classical competition-colonization metacommunity model to show that fragmentation can increase or decrease diversity depending on the total amount of habitat in the landscape. 🧪 www.nature.com/articles/s41...
nature.com
Habitat amount modulates biodiversity responses to fragmentation - Nature Ecology & Evolution
How biodiversity responds to habitat fragmentation per se is debated. Here the authors combine metacommunity simulations with reanalysis of empirical metacommunities to show that the amount of habitat...
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Reposted by Jonathan Chase
Holly Moeller @mixotrophe.bsky.social · 13/06/2024
This week, embattled UCLA EEB Professor Priyanga Amarasekare faces additional disciplinary hearings. She offers a thorough defense of herself--and transparency on the history of charges & outcomes in her cases--here: pamarasekare.org
pamarasekare.org
Home | My Site 3
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Jonathan Chase @jon-chase03.bsky.social · 12/06/2024
After 6 years of postdoc-ing with us at iDiv, the Synthesis group says goodbye to Emma Ladouceur. She had such an incredible influence on us all, scientifically and personally. We will miss her, but wish her well and onto bigger and better things at the University of Prince Edward Island!
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Jonathan Chase @jon-chase03.bsky.social · 11/06/2024
For those following the ongoing saga of Priyanga Amarasekare—a major update. She speaks out, addressing all charges! This would make for a dramatic novel or Netflix series. But no, it’s the life of our brilliant and deeply caring colleague and friend. www.pamarasekare.org
pamarasekare.org
Home | My Site 3
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Jonathan Chase @jon-chase03.bsky.social · 30/04/2024
Congrats to all! But super pleased to see the early career list has Melissa Guzman, whom I was privileged to help nominate (and work with; she’s a 🌟) and Diogo Provete, who is spending the next year at IDiv in my research group, on a Humboldt foundation sabbatical! www.esa.org/blog/2024/04...
esa.org
Ecological Society of America announces 2024 Fellows – The Ecological Society of America
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Jonathan Chase @jon-chase03.bsky.social · 29/04/2024
🧪🌎 super important post from Brian McGill. ➡️We know academic publishing is broken; ➡️We know for profit publishers are driving us to a breaking point; ➡️We know we’re publishing too much; ➡️We are complicit! dynamicecology.wordpress.com/2024/04/29/t...
dynamicecology.wordpress.com
The state of academic publishing in 3 graphs, 6 trends, and 4 thoughts
Eleven years ago I shared a fairly heavily researched summary of the state of academic publishing. I mostly argued that OA (aka author pays) was a red herring and that we should really pay attention t...
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Jonathan Chase @jon-chase03.bsky.social · 23/04/2024
Congrats to Zhonghan Wang for leading this great study in Ecology looking at habitat fragmentation effects on the Thousand Island Lake islands across multiple trophic levels. Was great having him visit iDiv on a CAS scholarship from China. doi.org/10.1002/ecy....
doi.org
Higher trophic levels and species with poorer dispersal traits are more susceptible to habitat loss on island fragments
<em>Ecology</em> is a leading journal publishing original research and synthesis papers on all aspects of ecology, with particular emphasis on cutting-edge research and new concepts.
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Reposted by Jonathan Chase
Jarrett Byrnes @jebyrnes.bsky.social · 09/04/2024
Nice new modern take on the old pseudoreplication problem (here discussed much more accurately as subsampling) in experimental design. onlinelibrary.wiley.com/doi/epdf/10....
onlinelibrary.wiley.com
Principles of experimental design for ecology and evolution
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Reposted by Jonathan Chase
Nicolas Mouquet @nmouquet.bsky.social · 12/03/2024
As director of CESAB, I'm incredibly proud to share the latest article of our postdocs today in Ecology Letters. 👏 They call for a more ethical academic publishing landscape but also ask to not let only the Early Career Researchers pay the price of this paradigm shift ! doi.org/10.1111/ele.... 🧪🌍
The publish-or-perish culture in academia has catalysed the development of an unethical publishing system. This system is characterised by the proliferation of journals and publishers unaffiliated with learned societies or universities— that maintain extremely large revenues and profit margins diverting funds away from the academic community. Early career researchers (ECRs) are particularly vulnerable to the consequences of this publishing system because of intersecting factors, including pressure to pursue high impact publications, rising publication costs and job insecurity. Moving towards a more ethical system requires that scientists advocate for structural change by making career choices that come with risks, many of which disproportionately impact ECRs. We illuminate major issues facing ECRs in Ecology and Evolution under the current publishing system, and propose a portfolio of actions to promote systemic change that can be implemented by ECRs and established researchers.
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Jonathan Chase @jon-chase03.bsky.social · 21/03/2024
"Amarasekare knows she could get in trouble for talking about any of this, especially to a reporter. But she said she’s tired of feeling muzzled by confidentiality rules and wants to restore her reputation." www.chronicle.com/article/ucla...
chronicle.com
UCLA Punished a Prominent Scientist for ‘Destructive and Harmful Conduct.’ She Says It’s ‘Unjust Persecution.’
Priyanga Amarasekare was suspended and later put on involuntary leave for breaching the Faculty Code of Conduct. She hopes that speaking out will help clear her name.
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Reposted by Jonathan Chase
Inês Martins @inesismartins.bsky.social · 22/02/2024
🚨New paper! Is homogenization really that more common than differentiation? - not really, our latest work shows that one pattern can be as common as the other. Another great work and collaboration led by this amazing team👇
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Jonathan Chase @jon-chase03.bsky.social · 22/02/2024
The lack of evidence for declining local diversity through time must be because everything is homogenizing, leading to larger-scale losses. Right?! Nope, says our analysis of 500+ meta-communities through time just published in Science Advances 🧪🌎🐟🌳🦋 🐦🦌 www.science.org/doi/10.1126/...
science.org
Synthesis reveals approximately balanced biotic differentiation and homogenization
Homogenization is most common at large temporal and spatial scales but is balanced by differentiation at smaller scales.
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Reposted by Jonathan Chase
tabbyfossil.bsky.social @tabbyfossil.bsky.social · 25/01/2024
So it seems that UCLA, on top of punishing a POC professor for speaking out against racism, has also done nothing against professors for engaging in racist behavior
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Jonathan Chase @jon-chase03.bsky.social · 26/01/2024
We have a new call for 'Synthesis' projects at iDiv. Looking forward to more great 'community-driven' synthesis work happening here. Feel free to reach out with questions, etc. www.idiv.de/en/sdiv/calls
idiv.de
Calls
sDiv is the synthesis centre of iDiv
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Reposted by Jonathan Chase
Holly Moeller @mixotrophe.bsky.social · 10/01/2024
As Prof. Priyanga Amarasekare's heartbreaking saga at UCLA drags into another year, I've compiled a thread of articles written about the situation. My sardonic take: Some people didn't like to be accused of racism and decided to destroy her career over their hurt feelings. 1/21
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Géza Meszéna @gezam.bsky.social · 30/12/2023
🌍 #ecoevo
Our book "Theory-based Ecology: A Darwinian approach" by Liz Pásztor, Zoltán Botta-Dukát, Gabriella Magyar, Tamás Czárán, & Géza Meszéna, published by Oxford University Press in 2016.
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Reposted by Jonathan Chase
Matthias C. Rillig @mrillig.bsky.social · 27/12/2023
Good editorial from Holden Thorp, EIC of Science, on science in the future and our collective responsibility 2024 looms | Science 🧪#AcademicSky www.science.org/doi/10.1126/science.adn5404
science.org
2024 looms
Last week, Science reflected on major achievements in science in 2023, from weight loss drugs and a malaria vaccine to exascale computing and advances in artificial intelligence. These are all impress...
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Jonathan Chase @jon-chase03.bsky.social · 23/12/2023
An informative article about the career, contributions, and ongoing saga of award-winning ecologist, Priyanga Amarasekare! Nice write-up from Andy Dobson and Ottar Bjornstad. doi.org/10.1002/bes2...
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Reposted by Jonathan Chase
Dr. Marta Jarzyna @majarzyna.bsky.social · 30/11/2023
Join our lab! Applications are open for 1 graduate student and 1 postdoc positions to work in the area of AI and Biodiversity Change. Collaboration with ecologists and computer scientists in US, Canada, UK, Europe, & Australia. Please share. Info on how to apply: www.jarzynalab.com/news/open-po...
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Reposted by Jonathan Chase
Inês Martins @inesismartins.bsky.social · 17/11/2023
🚨Call open in a range of departments! Great opportunity to submit your own #PhD research proposal on the theme Biodiversity Gains & Resilience or apply to the other 8 Fully funded projects at the Leverhulme Centre for Anthropocene Biodiversity (York, UK) Apply here👇 www.york.ac.uk/professorial...
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Reposted by Jonathan Chase
Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 16/11/2023
Yes I will offer my online science-focused Statistical Rethinking course again starting in January 2024. Registration going up at the end of this month. All the course materials are already online though, so why wait? Update your posterior starting today 🧪 #stats www.youtube.com/watch?v=FdnM...
youtube.com
Statistical Rethinking 2023 - 01 - The Golem of Prague
Full course details at https://github.com/rmcelreath/stat_rethinking_2023Chapters:00:00 Introduction03:30 DAGs (causal models)17:50 Golems (stat models)43:06...
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Jonathan Chase @jon-chase03.bsky.social · 09/11/2023
Nice to have our Ukrainian 🇺🇦 colleagues back for another #sDiv workshop at iDiv on the scaling of grassland biodiversity. This week, traits and the dreaded beta-diversity! Expertly led by Oksana Buzhdygan and Anna Kizemko
Photo of colleagues at iDiv
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Jonathan Chase @jon-chase03.bsky.social · 02/11/2023
Do plants and microbes show the same response to fragmentation? Are the mechanisms similar? It was a pleasure exploring these questions in a paper led by Yueqing Song, Ling Wang et al in the J. Ecology in degraded grassland remnants in China. doi.org/10.1111/1365...
doi.org
http://doi.org/10.1111/1365-2745.14218
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Jonathan Chase @jon-chase03.bsky.social · 29/10/2023
Come join us @ iDiv👇
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Reposted by Jonathan Chase
Dan Koenig @evogen.bsky.social · 24/10/2023
So excited to announce our search for an Assistant Professor focused on understanding plant response to climate change! Come join us at UC Riverside aprecruit.ucr.edu/JPF01827
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Steph likes native plants @dendromecon27.bsky.social · 18/10/2023
Come work with us (Hall Cushman and myself) at U Nevada, Reno! We are seeking a PhD student and post-doc to work on Whitebark pine in California. We are interested in its recruitment dynamics and interactions with fire and fuels treatments. We have 3 years of solid funding!
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Chris Klausmeier @chrisklausmeier.bsky.social · 02/10/2023
IITE talk tomorrow: 9am California, Noon New York,  5pm London, 6pm Paris Eric Pederson (Concordia University): "How do we define a patch? Deriving subpopulation structure from movement models using random-walk-based distance metrics". Zoom link: liu-se.zoom.us/j/63158449287
Eric Pederson (Concordia University) will present a talk on: " How do we define a patch? Deriving subpopulation structure from movement models using random-walk-based distance metrics".

Abstract:  The metapopulation framework is a cornerstone tool for modelling spatially structured populations. A Metapopulation is defined as a set of subpopulations living in well-mixed patches, connected by inter-patch movement. However, there is currently no clear single definition of what constitutes a “patch” of habitat in fragmented and heterogeneous landscape. In this talk, I argue that we should define patches based on synchronization of population dynamics driven by local interactions between individuals. Further, when interaction is driven by individual patterns of movement and individual movement follows a Markov random walk, I show that it is possible to derive a measure of lifetime encounter probabilities between individuals inhabiting the landscape. This can be used to define a consistent
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Jonathan Chase @jon-chase03.bsky.social · 19/10/2023
Hi all; I’m the ‘Synthesis’ editor at Ecology Letters. I’m always on the lookout for outstanding ‘synthesis’ papers (could be conceptual, theoretical, meta-analytic, etc). If you have something in the works, or know of something relevant, let me know! onlinelibrary.wiley.com/page/journal...
onlinelibrary.wiley.com
Ecology Letters
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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Jonathan Chase @jon-chase03.bsky.social · 13/10/2023
Oh my! Coffee, mangos, chocolate! All at risk! 😱😱😱 www.science.org/doi/10.1126/...
science.org
Science | AAAS
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Jonathan Chase @jon-chase03.bsky.social · 10/10/2023
The effects of urbanization on bird diversity (from eBird data) across scales in the U.S. appears to be largely due to changes in abundances of individuals and sampling effects. New paper from Corey Callahan, Dan McGlinn and myself.
onlinelibrary.wiley.com
https://onlinelibrary.wiley.com/doi/full/10.1111/ecog.06759
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American Naturalist / ASN 🐌 @asn-amnat.bsky.social · 03/10/2023
The ASN Executive Committee and Mark McPeek have authored a statement recognizing the research and contributions of the society's Vice President, Dr. Priyanga Amarasekare: www.amnat.org/announcement...
Priyanga Amarasekare (center) receiving the ESA's Robert H. MacArthur Award
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