Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
@giacometti.bsky.social
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Postdoctoral fellow at USP 🇧🇷. Comparative physiology & thermal biology. ☕️ & 🍺.
🚨New paper in JEZ-A 🦎 In Tropidurus catalanensis, sprint speed isn’t about size, testosterone or muscle enzyme activity. Instead, fast lizards show greater cardiac oxidative capacity, which is vital for post-exercise recovery
doi.org/10.1002/jez....
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https://doi.org/10.1002/jez.70040
3 days ago
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🚨 New paper in ICB! 🚨 We demonstrate that sexually selected traits like horns and claws aren’t just about mating success: these structures can also shape thermal biology. 🦀🪲🌡️
doi.org/10.1093/icb/...
@tattersallg.bsky.social
@avpalaoro.bsky.social
@sicbjournals.bsky.social
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Exaggeration Through Sexual Selection May Impact the Thermal Biology of Arthropods
Synopsis. Sexual selection is often invoked to explain the evolution of extravagant morphologies, such as antlers and horns. While the focus is typically o
https://doi.org/10.1093/icb/icaf023
10 days ago
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🚨 New paper! 🚨 We present thermal imaging evidence that blue-spotted salamanders partake in breeding migration at sub-zero body temperatures that are way below their known supercooling point. ❄️🥶 Why take such a risk? Come check the paper:
doi.org/10.1139/cjz-...
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Sub-zero body temperatures during early spring migration in blue-spotted salamanders (Ambystoma laterale)
Amphibians that reproduce in early spring at northern latitudes may encounter environmental ice while migrating to their breeding sites. Due to the nucleation properties of ice, contact with environme...
https://doi.org/10.1139/cjz-2025-0045
16 days ago
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reposted by
Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
16 days ago
Supercool Survival Strategies of Blue-Spotted Salamanders In the cold, temperate forests, long before spring fully arrives, blue-spotted salamanders (Ambystoma laterale) are already on the move. These small amphibians begin migrating to their breeding ponds while snow still blankets the ground and…
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Supercool Survival Strategies of Blue-Spotted Salamanders
In the cold, temperate forests, long before spring fully arrives, blue-spotted salamanders (Ambystoma laterale) are already on the move. These small amphibians begin migrating to their breeding ponds while snow still blankets the ground and ice lingers on and in the soil. This is a risky strategy for a species that can’t survive freezing. Our recent Natural History note…
http://tattersalllab.com/2025/09/09/supercool-survival-strategies-of-blue-spotted-salamanders/
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I'm extremely happy to share that in August I'll be starting a post-doc in Dr. Carlos Navas' lab at Universidade de São Paulo! With a fellowship given by the São Paulo Research Foundation, I'll study the mechanisms underlying behavioural fever in amphibians and reptiles 🐸🦎🌡️
about 2 months ago
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reposted by
Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Canadian Journal of Zoology
3 months ago
📢 Now
#hiring
:
@canjzoology.bsky.social
is recruiting an
#ECR
Associate Editor! This is a great volunteer opportunity for a postdoc or early-career faculty member to gain editorial experience and build connections! ▶️
buff.ly/hpVApYd
#AcademicSky
#SciComm
🧪
#AcWri
#PHDSky
#ScholComms
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Journal of Experimental Biology
4 months ago
Salamanders need to make sure their skin stays wet enough to survive living on land. Giacometti & co recently showed that salamanders can sense the humidity in the air and seek out areas that will stop their skin from drying out
journals.biologists.com/jeb/article/...
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
4 months ago
Faculty of Math and Sciences Best PhD Dissertation Award to Danilo Giacometti Congratulations Dr. Danilo Giacometti! The Faculty of Mathematics and Sciences at Brock has awarded you the FMS Best PhD Thesis Award. A supervisor could not be prouder!
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Faculty of Math and Sciences Best PhD Dissertation Award to Danilo Giacometti
Congratulations Dr. Danilo Giacometti! The Faculty of Mathematics and Sciences at Brock has awarded you the FMS Best PhD Thesis Award. A supervisor could not be prouder!
http://tattersalllab.com/2025/06/10/faculty-of-math-and-sciences-best-phd-dissertation-award-to-danilo-giacometti/
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Miriam Richards
4 months ago
And all 5 chapters published before the thesis defense! Amazing! Makes the committee kind of irrelevant in a good way.
add a skeleton here at some point
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Extremely happy to share that I successfully defended my PhD yesterday! Thank you to my fantastic supervisor
@tattersallg.bsky.social
, my committee members
@photopidge.bsky.social
and
@richardsmiriam1.bsky.social
, and my external examiners
@lizardprof.bsky.social
and Dr. Toby Mündel.
4 months ago
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
4 months ago
Congratulations, Dr. Giacometti! I am really proud to congratulate Dr. Danilo Giacometti for his successful PhD Defence! The thesis entitled "Physiological and behavioural responses to temperature and humidity in fossorial amphibians" was defended today in front of his examining committee: Dr. Don…
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Congratulations, Dr. Giacometti!
I am really proud to congratulate Dr. Danilo Giacometti for his successful PhD Defence! The thesis entitled "Physiological and behavioural responses to temperature and humidity in fossorial amphibians" was defended today in front of his examining committee: Dr. Don Miles (External, Ohio University), Dr. Toby Mündel (External within Brock University), Dr. Diane Mack (Chair, Brock University), Dr. Miriam Richards, Dr. Kiyoko Gotanda, and myself.
http://tattersalllab.com/2025/06/02/congratulations-dr-giacometti/
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
4 months ago
Hydro Hackers: How Salamanders Outsmart “the Drying” For amphibians, water is everything. Their thin skin makes them especially vulnerable to drying out, so staying hydrated is not just about comfort—it is about survival. But how do amphibians manage their hydration state in the face of different…
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Hydro Hackers: How Salamanders Outsmart “the Drying”
For amphibians, water is everything. Their thin skin makes them especially vulnerable to drying out, so staying hydrated is not just about comfort—it is about survival. But how do amphibians manage their hydration state in the face of different temperatures and fluctuating humidity? Our recent study on spotted salamanders (Ambystoma maculatum) provides some new insights into this question. We exposed salamanders to two temperatures—17°C and 22°C—within a humidity gradient (Fig 1) to understand how salamanders behaved when given the choice to move toward more or less humid conditions under contrasting thermal conditions.
http://tattersalllab.com/2025/05/23/hydro-hackers-how-salamanders-outsmart-the-drying/
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Hydro Hackers: How Salamanders Outsmart "the Drying"
tattersalllab.com/2025/05/23/h...
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Hydro Hackers: How Salamanders Outsmart “the Drying”
For amphibians, water is everything. Their thin skin makes them especially vulnerable to drying out, so staying hydrated is not just about comfort—it is about survival. But how do amphibians manage…
https://tattersalllab.com/2025/05/23/hydro-hackers-how-salamanders-outsmart-the-drying/
4 months ago
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@jexpbiol.bsky.social
did a great job translating our work to a broader audience through this 'Inside JEB' article. Please check it out!
doi.org/10.1242/jeb....
4 months ago
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🚨 New paper! 🚨 We show that salamanders behaviourally regulate a constant vapour pressure deficit regardless of temperature, which supports the presence of a humidistat that helps regulate evaporative water loss.
doi.org/10.1242/jeb....
@tattersallg.bsky.social
@jexpbiol.bsky.social
#herpetology
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Behavioural evidence of a humidistat: a temperature-compensating mechanism of hydroregulation in spotted salamanders
Highlighted Article: Spotted salamanders maintain hydration state by behaviourally defending a constant evaporative drive between temperatures.
https://doi.org/10.1242/jeb.250297
4 months ago
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reposted by
Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Rafeeque Mavoor
5 months ago
🧵5 Top Free Alternatives to BioRender for Scientific Illustrations! These five websites offer free scientific illustrations for biologists. Great for presentations, research papers and other research communication needs. Save and share the post!
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🚨New paper!🚨 In our latest paper in Oecologia, we demonstrate that fossorial (i.e., underground-dwelling) ectotherms, which are thought to experience attenuated climatic variability underground, also display seasonal adjustments in key physiological functions.
doi.org/10.1007/s004...
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Seasonal plasticity in the thermal sensitivity of metabolism but not water loss in a fossorial ectotherm - Oecologia
Ectotherms from highly seasonal habitats should have enhanced potential for physiological plasticity to cope with climatic variability. However, whether this pattern is applicable to fossorial ectothe...
https://doi.org/10.1007/s00442-025-05711-6
5 months ago
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
5 months ago
Digging into physiology: how salamanders balance energy and water between seasons Ectotherms from highly seasonal habitats often exhibit remarkable physiological plasticity, which allows them to balanceand adjust energy and water budgets in the face of fluctuating climatic conditions. Yet,…
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Digging into physiology: how salamanders balance energy and water between seasons
Ectotherms from highly seasonal habitats often exhibit remarkable physiological plasticity, which allows them to balanceand adjust energy and water budgets in the face of fluctuating climatic conditions. Yet, fossorial (i.e., underground-dwelling) ectotherms are thought to experience attenuated climatic variability underground, raising the question: do fossorial ectotherms also display seasonal adjustments in key physiological functions? We investigated how seasonal acclimation (spring vs.
http://tattersalllab.com/2025/04/23/digging-into-physiology-how-salamanders-balance-energy-and-water-between-seasons/
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
6 months ago
Exploring Fish and Reptile Intelligence: Honours Thesis Defence Insights A busy week with Honours student defences from the lab (and throughout the Department of Biological Sciences). From our lab: Margaret Kitney defended a brilliant thesis project on how and whether sex differences alters…
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Exploring Fish and Reptile Intelligence: Honours Thesis Defence Insights
A busy week with Honours student defences from the lab (and throughout the Department of Biological Sciences). From our lab: Margaret Kitney defended a brilliant thesis project on how and whether sex differences alters thermoregulatory behaviours in guppies (The effect of sex on the thermoregulatory behaviour of the Trinidadian guppy (Poecilia reticulata), having spent months watching fish swimming in shuttle boxes and months pouring over tracking algorithm detection processes.
http://tattersalllab.com/2025/04/10/exploring-fish-and-reptile-intelligence-honours-thesis-defence-insights/
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New paper in Insect Science! We used infrared thermography to show that regional heterothermy can be sustained even in the absence of heat stress or enforced exercise in rhinoceros beetles.
onlinelibrary.wiley.com/doi/10.1111/...
7 months ago
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reposted by
Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Nicholas Wu
7 months ago
New paper in
@nature.com
led by
@patricepottier.bsky.social
! We demonstrated global vulnerability of amphibians to warming, threatening 10% of >5,000 species examined. How did we do it? See thread🧵 Paper:
www.nature.com/articles/s41...
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
8 months ago
Unlocking the Motivations of Repetitive Behaviours in Reptiles Our latest study ( sheds light on a perplexing behaviour seen in captive reptiles, namely their interactions with barriers (IWB), a form of repetitive behaviour akin to pacing in mammals. As part of her PhD research, Melanie Denommé…
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Unlocking the Motivations of Repetitive Behaviours in Reptiles
Our latest study ( sheds light on a perplexing behaviour seen in captive reptiles, namely their interactions with barriers (IWB), a form of repetitive behaviour akin to pacing in mammals. As part of her PhD research, Melanie Denommé investigated the motivations behind IWB in bearded dragons (Pogona vitticeps; Figure 1) over a three year period, and formally tested whether it stems from a “desire” to escape their enclosures.
http://tattersalllab.com/2025/01/20/unlocking-the-motivations-of-repetitive-behaviours-in-reptiles/
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Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Kelly Zamudio
9 months ago
Happy New Year Everyone! ICYMI... Our lab is hiring for two positions, a post-doc to work on immune mechanisms of pathogen resistance and a lab technician Deadline is Feb 1 and descriptions of both positions are below or at
zamudiolab.org
Please help spread the word!
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From Bat Lake to the 2025
@jexpbiol.bsky.social
calendar. What an honour!
9 months ago
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reposted by
Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Alex Gunderson
11 months ago
Starter pack of ecological and evolutionary physiologists. Definitely missing people so let me know
go.bsky.app/N5Xvr8v
add a skeleton here at some point
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reposted by
Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
11 months ago
When Salamanders Surface: Understanding the Secrets Behind Spotted Salamander Overwintering Emergence Fossorial amphibians, like the Spotted Salamander, exhibit unique behaviors when emerging from their underground winter refuges. This study investigates the effects of soil temperature inversion…
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When Salamanders Surface: Understanding the Secrets Behind Spotted Salamander Overwintering Emergence
Fossorial amphibians, like the Spotted Salamander, exhibit unique behaviors when emerging from their underground winter refuges. This study investigates the effects of soil temperature inversion and gravity on their behavior. Findings reveal that temperature cues and a phenomenon called migration restlessness influence their timing for spring migration, optimizing reproductive success.
http://tattersalllab.com/2024/10/24/when-salamanders-surface-understanding-the-secrets-behind-spotted-salamander-overwintering-emergence/
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We have a new paper out! Spotted Salamanders engage in active behavioural thermoregulation in both the active and overwintering seasons. However, behavioural differences between seasons result in a 9.4°C shift in selected temperatures.
royalsocietypublishing.org/doi/10.1098/...
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Seasonal variation of behavioural thermoregulation in a fossorial salamander (Ambystoma maculatum) | Royal Society Open Science
Temperature seasonality plays a pivotal role in shaping the thermal biology of ectotherms. However, we still have a limited understanding of how ectotherms maintain thermal balance in the face of vary...
https://royalsocietypublishing.org/doi/10.1098/rsos.240537
about 1 year ago
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reposted by
Dr. Danilo Giacometti (he/him) 🇧🇷🇨🇦
Dr. Glenn Tattersall
about 1 year ago
New paper from Danilo Giacometti's PhD work is out
tattersalllab.com/2024/09/04/s...
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Salamanders show inherent seasonal differences in thermal preference
Very pleased to have my PhD student, Danilo Giacometti's paper accepted recently in Royal Open Science. This represents the culmination of over a year's work carefully measuring temperature selection....
https://tattersalllab.com/2024/09/04/salamanders-show-inherent-seasonal-differences-in-thermal-preference/
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🚨Our latest paper in Biological Reviews is out now! 🚨 We provide a review of
#lizard
thermal biology in the context of
#seasonality
. We also assessed how seasonality and
#behaviour
interacted to shape lizard thermal biology through a meta-analysis. 🦎🌡️
onlinelibrary.wiley.com/doi/10.1111/...
almost 2 years ago
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