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Urvi Gupta

@urvigupta

PhD candidate at University of Georgia, USA. Studying climate change, prey-predator dynamics, and range shifts in birds

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07.02.2025
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Latest posts by Urvi Gupta @urvigupta

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Developmental Stage‐Specific Responses to Extreme Climatic Events and Environmental Variability in Great Tit Nestlings Extreme climatic events (ECEs) impact great tit nestlings in a developmental stage-specific and context-dependent manner. Using 60 years of data on 83,000+ great tit nestlings from Wytham Woods, UK, ...

New paper out! Great tits face distinct challenges from extreme weather during development, based on 60 years data from >83k nestlings in Wytham Woods 🐣 Cold snaps & heavy rain can stunt growth, but earlier breeding may help buffer this! By @devisatarkar.bsky.social et al.
doi.org/10.1111/gcb.70794

11.03.2026 19:00 👍 39 🔁 18 💬 2 📌 3

Some of my favorite books pictured here! Congratulations on your new book, looking forward to it!

10.03.2026 19:05 👍 1 🔁 0 💬 0 📌 0
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Limited thermal tolerance in tropical insects and its genomic signature - Nature A survey of tropical insect populations and thermal tolerance limits indicates that species from lowland areas have low capacity to survive increased temperatures, and that thermal tolerance is limite...

fantastic paper by @kimholzmann.bsky.social & colleagues presenting data on ~2300 insect species along two tropical mountain slopes

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

04.03.2026 20:00 👍 6 🔁 2 💬 0 📌 0
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#NewPaperAlert! So incredibly proud of Katy Silber, former PhD student & post-doc for publishing ALL of the work she did in the lab. This last paper @pnas.org answers the question, how and why does rain matter to bird reproduction, *generally*? Here is the graphic summary... details below.
1/n

03.03.2026 15:32 👍 14 🔁 5 💬 1 📌 2
Figure showing how the correlation between mass and recruitment in Wytham Great Tits depends on environmental conditions - in particular note switch from almost none to very strong with increasing population density

Figure showing how the correlation between mass and recruitment in Wytham Great Tits depends on environmental conditions - in particular note switch from almost none to very strong with increasing population density

New research just out in J Evol Biol: led by @lbliard.bsky.social with @jsmartin.bsky.social @dzchilds.bsky.social @paniw.bsky.social & Arpat Ozgul using the very cool Covariance Reaction Norm approach to test environmental dependence of trade-offs in great tits
academic.oup.com/jeb/advance-...

20.02.2026 15:27 👍 9 🔁 7 💬 0 📌 0
Figure from preprint showing temporal chage in mass of great tits. In (A) plot is of average mass each year for adult birds during breeding season. In (B) the mass of nestlings in each year. The lower, purple line, are data for all nestlings; the green points and line for those nestlings which survived to be breeding adults. The increasing gap between the lines shows that selection on fledging mass has slowly become stronger over this period.

Figure from preprint showing temporal chage in mass of great tits. In (A) plot is of average mass each year for adult birds during breeding season. In (B) the mass of nestlings in each year. The lower, purple line, are data for all nestlings; the green points and line for those nestlings which survived to be breeding adults. The increasing gap between the lines shows that selection on fledging mass has slowly become stronger over this period.

Young male Great Tit in the hand after processing to collect biometric data

Young male Great Tit in the hand after processing to collect biometric data

Some new research from us, led by @davididiaquez.bsky.social. Using data from the past 47 years, we show that mass of adult great tits has declined by ~1 sd, which seems to result largely from an environmental effect on nestling growth linked to higher pop density

www.biorxiv.org/content/10.6...

16.02.2026 13:11 👍 6 🔁 4 💬 0 📌 0
The answer to tomorrow's question may lie in the past: the value of long-term records -Wytham Woods
The answer to tomorrow's question may lie in the past: the value of long-term records -Wytham Woods YouTube video by Oxford Nature Network

The answer to tomorrow’s conservation challenges may lie in the past. Long-term ecological records from Wytham Woods show why decades of data are vital for understanding biodiversity change, guiding policy, & improving nature recovery outcomes. Short-term data can mislead—history matters. Watch now

10.02.2026 14:10 👍 8 🔁 6 💬 1 📌 1
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We face two potential missteps in ecophysiology: 1) measuring animals under socially unrealistic conditions & 2) extrapolating results to nature, where social dynamics alter trait expression, plasticity, & evolutionary outcomes. Our new commentary in @jexpbiol.bsky.social : doi.org/10.1242/jeb....

09.02.2026 13:24 👍 44 🔁 15 💬 0 📌 4
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why do males defend territories in some species while pairs or family groups defend territories in others?

then-undergrad Shreyas Arashanapalli did a fantastic project to find out, analyzing 3177 playback experiments on 264 species

the best predictor?

latitude

academic.oup.com/evolut/advan...

04.02.2026 18:21 👍 32 🔁 17 💬 4 📌 1
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India’s 60 million street dogs are turning from village scavengers to city territory defenders How an ancient evolutionary bond morphed into a modern urban crisis.

How an ancient evolutionary bond morphed into a modern urban crisis.

09.01.2026 18:07 👍 8 🔁 5 💬 0 📌 0
City smart: Are cities making birds smarter? One cannot go to Florida and miss the White Ibises roaming golf, park and private lawns. But how does a swamp-loving ibis become a city bird? We’re testing whether urban ibises are cleverer than their...

Please share share share! I launched a crowdfunding for my project, I need your help!
Note: if you become a backer, you will be notified with bonus avian encounters at the parks! Wanna see spoonbills, cranes and bald eagles? Even a tiny donation will help me <3 experiment.com/projects/cit...

30.12.2025 23:49 👍 0 🔁 1 💬 0 📌 0
Book cover for Reproducible Code guide. The cover has a red background with a large yellow-bodied black-headed stag beetle.

Book cover for Reproducible Code guide. The cover has a red background with a large yellow-bodied black-headed stag beetle.

Excited to launch the new improved Reproducible Code guide from @britishecologicalsociety.org @methodsinecoevol.bsky.social FREE online here! www.britishecologicalsociety.org//wp-content/... Amazing work by some very talented ECRs. We hope it’s useful!

16.12.2025 15:03 👍 315 🔁 198 💬 6 📌 9

Fascinating new paper by @andrewabraham.bsky.social on how salt starvation shapes the abundance of large animals in Africa - the thread below explains the science … 🌐

09.12.2025 19:12 👍 15 🔁 6 💬 1 📌 0
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Nitrogen deposition reveals global patterns in plant and animal stoichiometry - Nature Communications Organisms vary in their nitrogen and phosphorus content, shaping ecological and evolutionary processes. This study shows that nitrogen deposition is a consistent global factor associated with plant an...

🧵1/5
🌍🔬 Our new paper is out! We identify the global mechanisms shaping the elemental composition of organisms — and the results overturn long-standing assumptions in ecology.

👇 Thread ↓
doi.org/10.1038/s414...

09.12.2025 14:32 👍 33 🔁 22 💬 3 📌 3
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Socioecological risks amplified by rising plant invasions in India - Nature Sustainability Biological invasions can have detrimental ecological and social impacts, especially in regions where human populations depend on natural systems for their livelihoods. This study examines the socioeco...

See our new study led by @ninadm.bsky.social in Nature Sustainability: 16 yrs of data show invasive #plants in #India expanding fast as passengers+drivers of change—reshaping #habitats, #fire & #livelihoods while creating novel ecosystem🌿🐅Collab w/ WII & NCBS.
➡️ doi.org/10.1038/s418... #alienplants

04.12.2025 07:37 👍 16 🔁 3 💬 0 📌 0
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My first PhD thesis paper is out now in Hormones and Behavior "Corticosterone predicts double-brooding in female savannah sparrows (Passerculus sandwichensis)". Open access here: doi.org/10.1016/j.yh... [1/7]

31.01.2025 13:23 👍 11 🔁 5 💬 1 📌 1
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Newly expanded version of my guide to scientific writing -- known as the “15 steps” -- published in PLOS Computational Biology. Special thanks to Éric Marty for creating a fantastic visualization.

Check it out: journals.plos.org/ploscompbiol...

#ScientificWriting #PLOSComputationalBiology

24.09.2025 17:54 👍 43 🔁 26 💬 1 📌 2
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Humans killed millions of vultures. Now people are paying the price. The near-extinction of vultures in India has had severe consequences.

As the vulture population plummets, dogs multiply and rabies spreads.

The sequence, triggered by human action, carries a warning that many scientists consider to be a sixth mass extinction: When we endanger other species, we endanger ourselves.

29.11.2025 20:00 👍 163 🔁 82 💬 8 📌 5

“Choosing to write is also choosing to make meaning. Studies suggest that having a sense of agency is both a prerequisite for, and an outcome of, writing.”

ChatGPT isn’t mentioned once in this article but it’s impossible not to read it as a powerful critique.

28.11.2025 22:11 👍 49 🔁 17 💬 0 📌 1

Syntopic diet divergence inferred from metabarcoding in two parulid warblers: Setophaga virens (Black-throated Green Warbler) and Seiurus aurocapilla (Ovenbird) | doi.org/10.1093/orni... | Ornithology | #ornithology 🪶

30.10.2025 13:30 👍 0 🔁 2 💬 0 📌 0
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How to measure the planet’s heartbeat Ecosystem scientist Yadvinder Malhi takes us on a jaw-dropping journey through the hidden flows of energy that make life on Earth tick. From sun-soaked forests to tropical islands, he shows how his te...

On a busy day I had a TED talk published. This talk is about the energy flows of the living world, and how we need to centre this vibrancy as a core value when thinking about working with nature for climate change and other challenges

www.ted.com/talks/yadvin...

29.10.2025 17:21 👍 27 🔁 6 💬 2 📌 0
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A wide range of abiotic and biotic variables leaves most variation in bird nest architecture unexplained | Proceedings of the Royal Society B: Biological Sciences Nests are the locations or containers for offspring, and mediate interactions between offspring and the environment. However, understanding how environmental factors shape the evolution of nest archit...

New paper today in Proc B @royalsociety.org. We explored nest architecture in 3,685 species of birds, modelling the multivariate nature of nests, i.e. how shape, location or attachment co-occur. Then we explored how the environment affected nest architecture evolution. Spoilers in the title! 🪺🐦🌍

29.10.2025 10:53 👍 28 🔁 15 💬 1 📌 1
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A Causal Inference Framework for Climate Change Attribution in Ecology Accurately attributing ecological shifts to climate change remains a significant challenge. Here, we present an accessible causal inference framework designed for climate change attribution in observ...

Putting this here, partly to remind myself to read it (🙄) but also because it looks important and useful

onlinelibrary.wiley.com/doi/epdf/10....

24.10.2025 17:49 👍 14 🔁 5 💬 0 📌 0
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The brains and social lives of animals shape predator-prey interactions. We explore the extent of this relationship in our 2024 @cp-trendsecolevo.bsky.social review.

www.cell.com/trends/ecolo...

14.07.2025 02:48 👍 6 🔁 4 💬 0 📌 0
Host-specific broomrapes: the role of strigolactone cocktails
Host-specific broomrapes: the role of strigolactone cocktails YouTube video by Bill Sutherland's Conservation Concepts

How do broomrapes find their hosts? How can they specialise on different hosts? Enter the astonishing world of strigolactones
. youtu.be/mUp9n_RW2eg?...

14.07.2025 06:46 👍 15 🔁 6 💬 0 📌 1
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How does personality shape ecological roles?🐦
A new Galápagos study shows that more exploratory birds use a broader foraging niche-linking consistent behavior with ecological flexibility.
📄 García-Loor et al.2025
doi.org/10.1111/btp....
#BirdBehavior #ForagingNiche #Galapagos
📸 Kleindorfer, Ploderer

14.07.2025 13:05 👍 13 🔁 6 💬 0 📌 0

not an average american, but living without a car and complaining about the terrible public transportation everyday

08.07.2025 10:51 👍 2 🔁 0 💬 1 📌 0
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you might think N American species are getting common at their north range limit and rare at their south range limit as temps get warmer

but you would be wrong

new paper in GEB w/ @eliotmiller.bsky.social & Matt Strimas-Mackey, eBird Status & Trends ftw

onlinelibrary.wiley.com/doi/full/10....

12.05.2025 14:08 👍 54 🔁 23 💬 2 📌 2
Book: State of the World's Raptors | Conservation Science

NEW BOOK JUST DROPPED. All chapters are free!

science.peregrinefund.org/state-of-wor...

11.05.2025 17:37 👍 28 🔁 14 💬 3 📌 1
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Comprehensive assessment of snow leopard distribution and population in the Indian Trans-Himalaya, Ladakh: Standardizing methods for evidence-based conservation Effective conservation of threatened species depends on accurate scientific assessment of their occurrence and population status. This information is often lacking or has poor scientific reliability f...

📢 🐾New paper: We developed robust methods to monitor snow leopard population. By implementing it across 59000 sq.km., we found one of the world’s largest snow leopard population and highest densities in Indian Trans-Himalaya. All thanks to local communities and a wonderful collaboration

09.05.2025 14:48 👍 4 🔁 3 💬 0 📌 0