Zach Hajian-Forooshani
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zhajianf.bsky.social
Zach Hajian-Forooshani
@zhajianf.bsky.social
| Community ecology | Agroecology | Theory | Complex systems | Ragtime | Ants |

Postdoc @ iDiv

https://scholar.google.com/citations?user=SZ7062gAAAAJ
Reposted by Zach Hajian-Forooshani
New paper! (arxiv.org/abs/2503.14093) I haven’t been this excited about one in a while, and I think the theory @mhab.bsky.social develops here will be a big step forward for the field. Why? Let me explain 🧵...
March 19, 2025 at 1:53 PM
Reposted by Zach Hajian-Forooshani
Critical role of fossils:
"notion that insect pollination began with the origin of angiosperms is still widespread... insect orders with extant and/or extinct pollinator representatives radiated long before the evolution of flowering plants."
onlinelibrary.wiley.com/doi/epdf/10....
🧪 #Paleobio ⚒️
March 13, 2025 at 8:38 PM
Reposted by Zach Hajian-Forooshani
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...
Biodiversity declines across fragmented forests
Assessing the effect of forest fragmentation on biodiversity.
www.nature.com
March 12, 2025 at 5:13 PM
Reposted by Zach Hajian-Forooshani
Reposted by Zach Hajian-Forooshani
▶️Environmental filtering, not dispersal history, explains global patterns of phylogenetic turnover in plants ◀️

Great PhD study by "my" only postdoc Lirong Cai (check her work) @lrcai.bsky.social led by @patrickweigelt.bsky.social & Holger Kreft et al.

www.nature.com/articles/s41...

#macroecology
Environmental filtering, not dispersal history, explains global patterns of phylogenetic turnover in seed plants at deep evolutionary timescales - Nature Ecology & Evolution
This modelling study integrates comprehensive regional plant inventories, environmental conditions and palaeogeographical reconstructions to assess the relative roles of environmental filtering and di...
www.nature.com
February 13, 2025 at 8:10 AM
Reposted by Zach Hajian-Forooshani
"Cacio e pepe" physics: In arxiv.org/abs/2501.00536v1, eight Italian scientists from the Max Planck Institute for the Physics of Complex Systems explain the physics behind a perfect dish of "cacio e pepe" and how to eschew the dreaded "mozzarella phase" - work featured @nytimes.com.
January 29, 2025 at 8:50 PM
Reposted by Zach Hajian-Forooshani
What is the role of complexity, nonlinearity and phase transitions in conservation biology? What kind of lessons from maths can help preserve biodiversity? Here's my last paper on Biological Conservation. @ftmaestre.bsky.social
sciencedirect.com/science/arti...
December 29, 2024 at 12:51 PM
Reposted by Zach Hajian-Forooshani
The ants are your guides to what the ecosystem is up to.
In the Peruvian Amazon a troop of monkeys just released a splash of urine from the tree tops.
Most of the Amazon is *extremely* salt deprived. Herbivorous Camponotus ants swarm any sodium source, seemingly appearing out of nowhere.
December 6, 2024 at 2:38 PM
Reposted by Zach Hajian-Forooshani
First, we've discovered the conventional fossil record. Then there was a time for trace fossils. And now even more exotic records reveal the ancient life:
Coprolites, cololites and regurgitalites point to the roots of dinosaur supremacy

www.nature.com/articles/s41...
🧪 #Paleobio ⚒️ #Geology #EvoBio
November 27, 2024 at 8:07 PM
Reposted by Zach Hajian-Forooshani
How does Approximate Bayesian Computation *ABC) work? @rabaath.bsky.social has a classic nice simple intro the ABC using the problem of infering the number of socks in a sample of laundry. There's a movie and a page with all the code. www.sumsar.net/blog/2015/07...
Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman: The Movie
This is a screencast of my UseR! 2015 presentation: Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman. Based on the original blog post it is a quick’n’dirty …
www.sumsar.net
November 27, 2024 at 2:45 PM
Reposted by Zach Hajian-Forooshani
Okie & Storch propose a theory explaining macroecological biodiversity patterns such as the latitudinal diversity gradient that addresses the role of extinction, speciation, resource availability, and the effects of biodiversity on community abundance.
www.journals.uchicago.edu/doi/10.1086/...
The Equilibrium Theory of Biodiversity Dynamics: A General Framework for Scaling Species Richness and Community Abundance along Environmental Gradients | The American Naturalist
Abstract Large-scale temporal and spatial biodiversity patterns have traditionally been explained by multitudinous particular factors and a few theories. However, these theories lack sufficient genera...
www.journals.uchicago.edu
November 21, 2024 at 7:16 PM
Reposted by Zach Hajian-Forooshani
Are the major evolutionary transitions describable as phase transitions, as in statistical physics? A great example of this is the transition to eukaryotic cells, as shown by this excellent paper by Jordi Bascompte and co-workers europepmc.org/api/fulltext...
November 19, 2024 at 6:54 PM