Steve Portugal

@sjportugal.bsky.social

Scientist. Physiologist, Zoologist, Ornithologist - Assoc Prof at The University of Oxford. Associate Ed at RSocPublishing 🏳️‍🌈🇪🇺🐦🎾

I am looking for PhD students and postdocs to join my lab at the University of Pittsburgh in Fall 2027. Anyone excited about urban evolution, hummingbirds, & community engagement, please reach out! And/or find me at #AOS2026 this week! More info here: www.valentina-alaasam.com

Happy to share this 'capstone' project from my time as a postdoc @umich.edu, where we show that hierarchically nested bursts of body-shape evolution may underlie much of perching-bird diversification over ~50 million years. Free access link here: rdcu.be/fuxB1

Rates of passerine body plan evolution in time and space

Nature Ecology & Evolution - A reconstruction of the evolutionary history of passerine body plans over the past ~50 Myr shows rare bursts of phenotypic innovation near the origin of major...

rdcu.be

The Arctic Circle just reached a temperature that once seemed almost impossible for such a frozen region: above 100°F, or 38°C … a shocking first … fragile regions are rapidly changing. Sometimes one number can tell a much bigger story … climate change is no longer distant. It’s here. It’s now.

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Natural England has confirmed that every white-tailed sea eagle found dead in Dorset since England's reintroduction began has carried traces of brodifacoum. Toxicology found the rodenticide in all five dead Dorset eagles 'at levels considered close to significant'.

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An analysis of fossil mammals in Science suggests that Mexico served as a long-term evolutionary “holding pen” where North American species adapted and diversified for millions of years before sweeping into South America 2.8 million years ago. https://scim.ag/4fu2QKL

Pie charts of taxonomic representation for all taxa sampled in each indicated geographic region and time interval during five diversification events leading up to interchange pulses.