Roozbeh Valavi
@rvalavi.bsky.social
Data scientist & spatial ecologist; species distribution models, ecological statistics, geospatial analysis, machine learning, DevOps, R, Python, C/C++, Rust programming
GitHub: https://github.com/rvalavi
GitHub: https://github.com/rvalavi
Reposted by Roozbeh Valavi
tmap or ggplot2 for maps? 🗺️
David O’Sullivan breaks down the trade-offs in a blog post.
URL: dosull.github.io/posts/2024-1...
#RStats #RSpatial #Maps #tmap #ggplot2
David O’Sullivan breaks down the trade-offs in a blog post.
URL: dosull.github.io/posts/2024-1...
#RStats #RSpatial #Maps #tmap #ggplot2
tmap vs. ggplot2 for mapping – Geospatial Stuff
For me at least the choice between ggplot2 and tmap is an ongoing question. Here are my latest thoughts on the subject (with code).
dosull.github.io
November 12, 2025 at 2:02 PM
Reposted by Roozbeh Valavi
In #drylands, plants don’t grow randomly — they self-organize into disordered hyperuniform patterns that help them use water wisely & endure extreme aridity. A beautiful hidden logic of nature, revealed in a new @pnas.org study doi.org/10.1073/pnas... including #Maestrelab alumni
October 8, 2025 at 6:59 AM
In #drylands, plants don’t grow randomly — they self-organize into disordered hyperuniform patterns that help them use water wisely & endure extreme aridity. A beautiful hidden logic of nature, revealed in a new @pnas.org study doi.org/10.1073/pnas... including #Maestrelab alumni
Reposted by Roozbeh Valavi
Only a pre-print for now, but after 4 years of hard work I couldn't resist sharing this!
The Global Canopy Atlas: analysis-ready maps of 3D structure for the world's woody ecosystems
📜: doi.org/10.1101/2025...
Huge team effort led by the brilliant Fabian Fischer!
The Global Canopy Atlas: analysis-ready maps of 3D structure for the world's woody ecosystems
📜: doi.org/10.1101/2025...
Huge team effort led by the brilliant Fabian Fischer!
September 5, 2025 at 2:29 PM
Only a pre-print for now, but after 4 years of hard work I couldn't resist sharing this!
The Global Canopy Atlas: analysis-ready maps of 3D structure for the world's woody ecosystems
📜: doi.org/10.1101/2025...
Huge team effort led by the brilliant Fabian Fischer!
The Global Canopy Atlas: analysis-ready maps of 3D structure for the world's woody ecosystems
📜: doi.org/10.1101/2025...
Huge team effort led by the brilliant Fabian Fischer!
Reposted by Roozbeh Valavi
“observed patterns of island biodiversity … demonstrate that neutral models can make accurate predictions of higher-order diversity statistics. “ onlinelibrary.wiley.com/doi/abs/10.1... 🧪🌐
Quantitatively Testing Predictions From Mechanistic Models: A Case Study for Island Biodiversity
A key test of an ecological model is whether it can quantitatively predict unseen aspects of the data not used in model fitting. Here, we test whether a model fitted only to island alpha diversity ca....
onlinelibrary.wiley.com
June 10, 2025 at 8:22 AM
“observed patterns of island biodiversity … demonstrate that neutral models can make accurate predictions of higher-order diversity statistics. “ onlinelibrary.wiley.com/doi/abs/10.1... 🧪🌐
Reposted by Roozbeh Valavi
Listen to AI podcast on Kass et al. „Achieving higher standards in SDM“ earthskysea.org/ecocast-podc... by @earthskysea.bsky.social
November 25, 2024 at 7:28 AM
Listen to AI podcast on Kass et al. „Achieving higher standards in SDM“ earthskysea.org/ecocast-podc... by @earthskysea.bsky.social
Reposted by Roozbeh Valavi
Scores of SDM packages for R... what should I do? Out now, lead by the indefatigable Jamie Kass, our paper in
@ecography.bsky.social on the SDM Software Universe! doi.org/10.1111/ecog... Alternatively, listen to the paper @ earthskysea.org/ecocast-podc...
@ecography.bsky.social on the SDM Software Universe! doi.org/10.1111/ecog... Alternatively, listen to the paper @ earthskysea.org/ecocast-podc...
Achieving higher standards in species distribution modeling by leveraging the diversity of available software
The increasing online availability of biodiversity data and advances in ecological modeling have led to a proliferation of open-source modeling tools. In particular, R packages for species distributi...
doi.org
November 24, 2024 at 6:33 PM
Scores of SDM packages for R... what should I do? Out now, lead by the indefatigable Jamie Kass, our paper in
@ecography.bsky.social on the SDM Software Universe! doi.org/10.1111/ecog... Alternatively, listen to the paper @ earthskysea.org/ecocast-podc...
@ecography.bsky.social on the SDM Software Universe! doi.org/10.1111/ecog... Alternatively, listen to the paper @ earthskysea.org/ecocast-podc...