Jonathan Chase
@jon-chase03.bsky.social
Ecologist; Biodiversity Synthesis Professor @idiv; Dad
Reposted by Jonathan Chase
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
www.idiv.de/major-update...
@uniofstandrews.bsky.social @idiv-research.bsky.social @erc.europa.eu @jon-chase03.bsky.social
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.
www.idiv.de
June 5, 2025 at 12:21 PM
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
www.idiv.de/major-update...
@uniofstandrews.bsky.social @idiv-research.bsky.social @erc.europa.eu @jon-chase03.bsky.social
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.
🚨New data paper/open data alert!🚨 BioTIME v2.0 is out now! We've expanded the database with improved spatial and taxonomic coverage, with a new R package! As always, free, public, and open acess :)
Paper:
onlinelibrary.wiley.com/doi/10.1111/...
Database:
biotime.st-andrews.ac.uk
Paper:
onlinelibrary.wiley.com/doi/10.1111/...
Database:
biotime.st-andrews.ac.uk
BioTIME 2.0: Expanding and Improving a Database of Biodiversity Time Series
Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The up...
onlinelibrary.wiley.com
May 15, 2025 at 7:11 PM
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.
Reposted by Jonathan Chase
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...
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...
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...
www.nature.com
March 13, 2025 at 10:22 PM
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...
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...
Reposted by Jonathan Chase
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...
Results from 37 studies distributed worldwide, on plants and animals, comparing continuous and fragmented landscapes.
www.nature.com/articles/s41...
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...
www.nature.com
March 12, 2025 at 9:02 PM
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...
Results from 37 studies distributed worldwide, on plants and animals, comparing continuous and fragmented landscapes.
www.nature.com/articles/s41...
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!
New article out today in @nature.com by Gonçalves-Souza, @nickhaddad.bsky.social, @jon-chase03.bsky.social et al. on forest fragmentation and biodiversity:
www.nature.com/articles/s41...
A must read for anyone interested in this topic. See my summary here:
www.nature.com/articles/d41...
www.nature.com/articles/s41...
A must read for anyone interested in this topic. See my summary here:
www.nature.com/articles/d41...
Biodiversity declines across fragmented forests
Assessing the effect of forest fragmentation on biodiversity.
www.nature.com
March 12, 2025 at 8:03 PM
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!
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...
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...
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...
www.nature.com
June 24, 2024 at 6:57 PM
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...
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...
Reposted by Jonathan Chase
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
June 13, 2024 at 7:21 AM
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
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!
June 12, 2024 at 6:36 PM
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!
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
www.pamarasekare.org
Home | My Site 3
www.pamarasekare.org
June 11, 2024 at 5:39 AM
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
www.pamarasekare.org
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...
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...
Ecological Society of America announces 2024 Fellows – The Ecological Society of America
www.esa.org
April 30, 2024 at 7:13 PM
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...
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...
🧪🌎 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...
➡️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...
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...
dynamicecology.wordpress.com
April 29, 2024 at 5:57 PM
🧪🌎 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...
➡️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...
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/10.1002/ecy....
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.
doi.org
April 23, 2024 at 2:22 PM
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/10.1002/ecy....
Reposted by Jonathan Chase
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....
Principles of experimental design for ecology and evolution
You have to enable JavaScript in your browser's settings in order to use the eReader.
onlinelibrary.wiley.com
April 9, 2024 at 10:58 AM
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....
Reposted by Jonathan Chase
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....
🧪🌍
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....
🧪🌍
March 12, 2024 at 10:11 AM
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....
🧪🌍
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....
🧪🌍
"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...
www.chronicle.com/article/ucla...
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.
www.chronicle.com
March 21, 2024 at 5:27 AM
"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...
www.chronicle.com/article/ucla...
Reposted by Jonathan Chase
🚨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👇
Another great work and collaboration led by this amazing team👇
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/...
Right?!
Nope, says our analysis of 500+ meta-communities through time just published in Science Advances
🧪🌎🐟🌳🦋 🐦🦌
www.science.org/doi/10.1126/...
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.
www.science.org
February 22, 2024 at 9:58 AM
🚨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👇
Another great work and collaboration led by this amazing team👇
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/...
Right?!
Nope, says our analysis of 500+ meta-communities through time just published in Science Advances
🧪🌎🐟🌳🦋 🐦🦌
www.science.org/doi/10.1126/...
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.
www.science.org
February 22, 2024 at 4:02 AM
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/...
Right?!
Nope, says our analysis of 500+ meta-communities through time just published in Science Advances
🧪🌎🐟🌳🦋 🐦🦌
www.science.org/doi/10.1126/...
Reposted by Jonathan Chase
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
January 25, 2024 at 3:47 PM
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
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
www.idiv.de/en/sdiv/calls
Calls
sDiv is the synthesis centre of iDiv
www.idiv.de
January 26, 2024 at 5:26 PM
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
www.idiv.de/en/sdiv/calls
Reposted by Jonathan Chase
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
January 10, 2024 at 4:28 PM
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
Reposted by Jonathan Chase
Reposted by Jonathan Chase
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
2024 looms | Science
🧪#AcademicSky
www.science.org/doi/10.1126/science.adn5404
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...
www.science.org
December 27, 2023 at 12:14 PM
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
2024 looms | Science
🧪#AcademicSky
www.science.org/doi/10.1126/science.adn5404
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...
Nice write-up from Andy Dobson and Ottar Bjornstad.
doi.org/10.1002/bes2...
December 23, 2023 at 2:26 PM
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...
Nice write-up from Andy Dobson and Ottar Bjornstad.
doi.org/10.1002/bes2...
Reposted by Jonathan Chase
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...
November 30, 2023 at 7:54 PM
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...
Reposted by Jonathan Chase
🚨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...
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...
November 17, 2023 at 6:16 PM
🚨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...
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...