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William Hammond

@wmhammond.bsky.social
1.3K followers 502 following 50 posts

Assistant professor of plant ecophysiology #EcoPhys at the University of Florida. he / him. Studying #WhatKillsTrees ecophyslab.com

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Reposted by William Hammond
John Hodge @jghodge.bsky.social · 09/08/2026
As someone a bit earlier on in their career I gotta say I can’t thank the #botany2026 committee (and the @bsa-ecophys.bsky.social and D&S subsections) for letting me lead a symposium, it was a fantastic opportunity and I feel like a lot of great conversations were had (and connections made!)
Conference room showing me leading off the Eco-Evo-Devo symposium
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Jessica A. Savage @savageplantphys.bsky.social · 28/07/2026
Check out the amazing talks and posters from my lab at #Botany2026 #ecophys
Pictures of flowers and phloem and list of speakers and presentation information for Jessica Savage, Abbey LinkedIn, Amelia Krings and Cat Law.
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MSU Plant Resilience Institute @msupri.bsky.social · 28/07/2026
The MSU Plant Resilience Institute is pleased to welcome internationally recognized plant ecophysiologist William Hammond (@wmhammond.bsky.social) to its faculty! #PlantScience 🌳 Read the full announcement: plantresilience.msu.edu/pri-news/202...
An announcement celebrating a new faculty hire, which includes an image of William Hammond and the following text contained in a green box underneath the image, "Internationally recognized plant ecophysiologist William Hammond joins MSU," with the Michigan State University Plant Resilience Institute wordmark logos at the bottom.
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William Hammond @wmhammond.bsky.social · 28/07/2026
Some big news for my lab, and for forests too, I hope! Very excited to join Michigan State in the Plant Resilience Institute, Departments of Forestry and Plant Biology, next fall. Lots of work ahead studying plant #necrodiversity and #WhatKillsTrees with so many new (& continuing) colleagues!
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Nadine Ruehr @nadineruehr.bsky.social · 16/04/2026
🌲🌳 PhD opportunity: Forest Vulnerability to Hotter Droughts Interested in forest ecosystems, climate extremes & tree stress resilience? 🎓 Dual PhD (KIT 🇩🇪 + Melbourne 🇦🇺) 🔬 Plant Ecophysiology Lab, Garmisch-Partenkirchen 🇩🇪 🌍 +1-year research stay 🇦🇺 👉 Apply here: t1p.de/g39co
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Martijn Slot @martijnslot.bsky.social · 16/04/2026
New paper by PhD student Priscila Lopez. By manipulating transpiration rate and plant-available silicon, we show that the early vascular plant, the spikemoss Selaginella, uses active silicon uptake when passive transport falls short of plant silicon needs. link.springer.com/article/10.1...
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Jorge A. Giraldo @jagiral1.bsky.social · 11/04/2026
What if we could track forest growth faster than plots? Check out our new work! #TreeRings #Dendrochronology doi.org/10.1016/j.de...
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Botany One @botany.one · 01/04/2026
Herbarium Sheets Are Holding Secrets Their Makers Never Intended www.botany.one/herbarium-sh... When you mount a plant on a sheet, you capture more than botany. A new paper reveals the unexpected historical treasures hiding in herbaria, and why closing them is a mistake. #Botany #PlantScience
botany.one
Herbarium Sheets Are Holding Secrets Their Makers Never Intended
When you mount a plant on a sheet, you capture more than botany. A new paper reveals the unexpected historical treasures hiding in herbaria, and why closing them is a mistake.
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Neil Pederson @yellowbuckeye.bsky.social · 29/03/2026
The core is a Picea rubens whose inner ring is 1905. The inner ring of of a 2nd core from this tree is 1721. If one extrapolated rings to pith using inner 10 ring widths and estimated distance to pith, I’d guess you’d be off 150 years, essentially two centuries off Careful when extrapolating ages
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Martijn Slot @martijnslot.bsky.social · 29/03/2026
New review paper led by postdoc Ibrahim Salman: Warming effects on floral volatile organic compounds and plant–pollinator interactions in tropical ecosystems. Now online @annbot.bsky.social academic.oup.com/aob/advance-...
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Brendan Choat @profchoat.bsky.social · 11/03/2026
🚨 New paper out in Journal of Plant Hydraulics! jplanthydro.org/article/view... Our team shows that Optical Dendrometry on small branches produces an incredibly tight linear relationship with water potential (R² ≈ 0.99) during drought‑to‑death drydowns in Eucalyptus crebra.
Plots showing relationship between branch diameter measured with optical dendrometry and stem water potential measured with a psychrometry
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Gina Baucom @gbaucom.bsky.social · 08/03/2026
🌿 Postdoc opportunity in plant evolutionary ecology/genetics! My lab in the Dept. of Ecology & Evolutionary Biology at the University of Michigan is recruiting a postdoctoral researcher to start Fall 2026. We study plant adaptation, using weeds as model systems. #Postdoc #EcoEvo Pls RT!
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The International Tree Mortality Network @treemortality.bsky.social · 06/03/2026
We relaunch our seminar series! Jordi Martinez-Vilalta will talk on the ‘Limits and opportunities in predicting drought-induced forest mortality’ 24 March 2026 at 15:00 UTC www.tree-mortality.net/seminars/
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Timothy Martin @treephys.bsky.social · 17/02/2026
The University of Florida's School of Forest, Fisheries, and Geomatics Sciences is looking for a Forest Hydrologist. This is a 9-month, tenure-track, 70% Research / 30% Teaching appointment.
Manatees in the clear water of a springfed stream in Florida.
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Abiotic Stress in Plants @abioticstress.bsky.social · 17/02/2026
Fifty shades of fade: linking #transmittance loss to #cellular death during leaf #dehydration nph.onlinelibrary.wiley.com/doi/10.1111/... #PlantScience @newphyt.bsky.social @maryloumantova.bsky.social @torresruizjm.bsky.social @irnase.bsky.social @hcochard.bsky.social @wmhammond.bsky.social
nph.onlinelibrary.wiley.com
Fifty shades of fade: linking transmittance loss to cellular death during leaf dehydration
Drought-induced tree mortality is associated with hydraulic failure and subsequent cell death. Leaf vitality is a critical indicator of tree water stress; however, current methods for assessing ce...
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AGU (American Geophysical Union) @agu.org · 12/02/2026
The science is clear. The stakes are real. AGU condemns the repeal of the EPA Endangerment Finding — a decision that rejects the overwhelming evidence and undermines climate accountability. We will continue to defend science and advocate for evidence-based policy. buff.ly/wX1BQ2t
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John Lovell @jotlovell.bsky.social · 12/02/2026
I'm super excited to share that this article was published today in Science! www.science.org/doi/10.1126/... All made possible by the fantastic group of donors, volunteers and scientists at The American Chestnut Foundation (tacf.org), HudsonAlpha Institute for Biotechnology, and our collaborators.
science.org
Genomic approaches to accelerate American chestnut restoration
More than a century after two introduced pathogens killed billions of American chestnut trees, introgression of resistance alleles from Chinese chestnuts has contributed to the recovery of self-sustai...
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Dr. Jeff Masters @drjeffmasters.bsky.social · 11/02/2026
Hurricanes are getting stronger: This study found from 1992-2021, Cat 1+ hurricanes globally intensified by 1.74 m/s (3.9 mph) over the 30-year period, and that a cold bias in IPCC climate models "probably contributes to an underestimate in projections of major hurricane frequency.”
nature.com
Weak self-induced cooling of tropical cyclones amid fast sea surface warming - Nature Geoscience
Tropical cyclones cool the ocean surface less than previously thought, indicating that current projections may underestimate their future intensity and frequency, according to an analysis of global se...
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Nadine Ruehr @nadineruehr.bsky.social · 22/01/2026
We are hiring a postdoctoral researcher!🌲 🌳 🌍 📍Interested in boreal and temperate forest productivity and respiration? 💻 Like to work with large datasets, remote sensing and models? 🏔️ Love an alpine setting in a small town? Come and join us at KIT! Application details: t1p.de/qctj7
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Plant Ecophys (BSA) @bsa-ecophys.bsky.social · 09/11/2024
Here is a working Starter Pack for Plant Ecophysiologists! Please let us know if you want to be added to this list in a comment or DM. #botany #plantecophys #PhysFam go.bsky.app/Pbq39H7
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New Phytologist @newphyt.bsky.social · 23/01/2026
From growth potential to drought survival: a trait- and time-based framework for plant water economics across vascular species Volaire et al. nph.onlinelibrary.wiley.com/doi/10.1111/...
Hypothesized trade-offs across vascular species illustrating a water use economics framework.
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Rupert Seidl @rupertseidl.bsky.social · 21/01/2026
Spring drought could be more detrimental for tree regeneration than summer drought, particularly as climate warms and tree phenology shifts. Results from an experiment in walk-in climate chambers, investigting four contrasting tree species. Led by @munozmazon.bsky.social doi.org/10.1016/j.ag...
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Max Kozlov @maxkozlov.bsky.social · 20/01/2026
Trump has been in office for one year. We at @nature.com did a deep dive looking at the administration's disruption of science in numbers. Take a look—the numbers are staggering. By me, @dangaristo.bsky.social, Jeff Tollefson, @kimay.bsky.social, & help from @noamross.net @scott-delaney.bsky.social
nature.com
US science after a year of Trump: what has been lost and what remains
A series of graphics reveals how the Trump administration has sought historic cuts to science and the research workforce.
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David Lowry @davidlowry.bsky.social · 16/01/2026
Nice to see strong support in Congress: “In an 82-15 vote, the Senate approved a minibus budget bill to fund agencies involved in science and the environment, among other issues, through Sept. 30. The bill passed in the House last week by a vote of 397 to 28.” www.nbcnews.com/politics/pol...
nbcnews.com
Congress passes bill to fund U.S. science agencies, rebuffing Trump's requested cuts
The Senate voted to provide billions more to NASA, NOAA and the National Science Foundation than the president had asked for.
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New Phytologist @newphyt.bsky.social · 13/01/2026
Stems and leaves of angiosperms follow a convex trade‐off to optimise hydraulic safety and efficiency Kreinert et al. nph.onlinelibrary.wiley.com/doi/10.1111/...
Relationships between stem and leaf hydraulic traits across species, derived from independent and overlapping datasets as well as their biome-specific variation.
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Dr. Jonathan Foley @globalecoguy.bsky.social · 10/01/2026
This is great! Eric and Wendy Schmidt make a massive investment in astronomy research. More of this please. arstechnica.com/space/2026/0...
arstechnica.com
Former Google CEO plans to singlehandedly fund a Hubble telescope replacement
“This is a very significant contribution to the astronomical community."
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Timothy Martin @treephys.bsky.social · 09/01/2026
Loblolly pine (*Pinus taeda*) cones. 15-year-old tree in an experiment in north Florida.
Loblolly pine cones.Loblolly pine cones on a felled tree.
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Charlotte Grossiord @charlottegrossiord.bsky.social · 07/01/2026
🌳PhD Opportunity in plant ecophysiology🌡️ Join EPFL (Switzerland) for fully-funded 4yr PhD on tree responses to air drought and heat. Climate chamber + long-term experiments to uncover physiological thresholds under climate change. www.epfl.ch/labs/perl/pe...
epfl.ch
PhD Position: Tree Physiological Responses to Atmospheric Drought
We invite applications for a fully funded four-year PhD position at the École Polytechnique Fédérale de Lausanne (EPFL), Switzerland, with a planned start date in June 2026. The selected candidate wil...
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Belinda Medlyn @bmedlyn.bsky.social · 06/01/2026
New research from our group: A pervasive increase in tree mortality across the Australian continent - driven by rising temperatures rdcu.be/eXSa7
rdcu.be
Pervasive increase in tree mortality across the Australian continent
Nature Plants - Eight decades of forest plot monitoring show a pervasive increase in tree mortality across Australia’s forest biomes driven by climate change, jeopardizing their role as...
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Prof Ros Gleadow FAA 💙💚 @rgleadow.bsky.social · 07/01/2026
'Yes, forest trees die of old age. But the warming climate is killing them faster' #ClimateEmergency #Globalwarming #trees #eucalypts #plantscience #ecology 🪴🌳🌾🌱🌡️ theconversation.com/yes-forest-t...
theconversation.com
Yes, forest trees die of old age. But the warming climate is killing them faster
The warming climate is killing Australia’s forest trees at a faster rate. This offers a glimpse of what may lie ahead for forests globally.
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Tim Curran @timcurran.bsky.social · 06/01/2026
www.abc.net.au/news/science...
abc.net.au
As the world warms, more trees are dying in Australian forests
From Tasmania to the Top End, Australia's forest trees are dying at higher rates due to climate change, according to new research.
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Tim Curran @timcurran.bsky.social · 06/01/2026
Pervasive increase in tree mortality across the Australian continent | Nature Plants share.google/RL9wdpMxxGRh...
share.google
Pervasive increase in tree mortality across the Australian continent - Nature Plants
Eight decades of forest plot monitoring show a pervasive increase in tree mortality across Australia’s forest biomes driven by climate change, jeopardizing their role as enduring carbon sinks.
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Lawren Sack @lawrensack.bsky.social · 07/01/2026
Locating a control of plant and ecosystem water fluxes deep in the leaf | PNAS www.pnas.org/doi/abs/10.1...
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Jared Pechaček @vandroidhelsing.bsky.social · 31/12/2025
blanket apology for all the emails I forgot to answer this year, and for all the emails I will forget to answer next year
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Tom Buckley @tombuckleylab.bsky.social · 29/12/2025
First PhD chapter from student Colleen Mills (not on Bluesky) just appeared in PCE: onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The Stomatal Response to Temperature Is Enhanced by High Evaporative Demand, Consistent With a Partially Hydraulic Mechanism
Leaf stomata respond to temperature even when the leaf-to-air vapor gradient is held constant, yet the mechanisms for this response are unknown, and may be mediated by increases in hydraulic conducta...
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Tim Curran @timcurran.bsky.social · 27/12/2025
This was a nice little Christmas present, with Boyd Wright and Rod Fensham. Vegetation flammability contributes to alternative stable states in arid Australia #flammability #Triodia connectsci.au/wf/article/d...
connectsci.au
Vegetation flammability contributes to alternative stable states in arid Australia
Background. Alternate stable state theory holds that disturbance thresholds can drive transitions between distinct vegetation types that exist under otherw
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Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social · 20/12/2025
Recruiting a postdoc through Dartmouth's Society of Fellows Program co-mentored with Michael Cox with specialization in forest carbon dynamics, climate policy, and nature-based solutions Apply by January 4th! apply.interfolio.com/176741 🌳🌎🧪
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Rosie Fisher @rosieafisher.bsky.social · 18/12/2025
Reposting this, to remind us that climate and weather models do not make themselves...
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Rosie Fisher @rosieafisher.bsky.social · 13/12/2025
A new paper in @nature.com led by Jeff Chambers, finds evidence of climatic mortality thresholds combining heat and drought, & explores the emergence of 'hypertropical' climates in future climates. Amazing multi-decadal effort by the field teams involved 👏 www.nature.com/articles/s41...
nature.com
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Terry McGlynn @hormiga.bsky.social · 11/12/2025
You can do this right now: Think of a person who wrote a paper you love, whose work influenced or helped you, or has made your professional life better. Search up their email address. Shoot them a quick email of thanks. It means so, so much. This is a rough time of year, share some joy.
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David Lowry @davidlowry.bsky.social · 08/12/2025
Reposting this as a reminder that we will continue to accept applicants for this postdoctoral position until December 23rd.
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Melaine Le Roy @subfossilguy.bsky.social · 29/11/2025
Yes, there are conifers in Greenland! 🌲 500 yr-long Juniperus tree ring-based temperature reconstruction with oldest living shrub 367 yo! 💪 Striking here: 1/3 of corpus is from archive (collected end of 19th c) Highlights importance of reanalysing old samples using modern analytical techniques! 👏
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Ilaine S. Matos @ilainematos.bsky.social · 25/11/2025
I have been successful on my first DECRA attempt. What a great surprise. #DECRA Safeguarding Australia's most threatened plants in a drier and hotter world.
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Owen Atkin @owenatkin.bsky.social · 03/11/2025
Save the date! 47th New Phytologist Symposium on 'Extreme Heat: extending the thermal limits of life'. Explore how extreme heat affects plants that underpin ecosystem productivity. 2-5 June 2026, Cordoba, Spain. @newphyt.bsky.social www.newphytologist.org/events/47-nps
newphytologist.org
Extreme Heat: extending the thermal limits of life
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Global Change Biology @globalchangebio.bsky.social · 26/11/2025
Extreme Heatwave Causes Immediate, Widespread Mortality of Forest Canopy Foliage, Highlighting Modes of Forest Sensitivity to Extreme Heat 🔗 buff.ly/CfdgwRy
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Lucia S. Layritz @lucialayr.bsky.social · 25/11/2025
Are you studying vegetation dynamics 🍃, tree mortality 🪵, or other aspects of the terrestrial carbon cycle? 🌍 Consider submitting to our #EGU26 session "Present & future global vegetation dynamics & carbon stocks from observations & models". We'd be delighted! ☺️ 👉 www.egu26.eu/session/57391
Flyer for EGU26 session:  Present and future global vegetation dynamics and carbon stocks from observations and models
Convener: Lucia Sophie LayritzECS | Co-conveners: Ana Bastos, Viola HeinrichECS, Thomas Pugh, Martin Thurner | Deadline January 15th 2026
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The International Tree Mortality Network @treemortality.bsky.social · 25/11/2025
We’re opening the doors for community meetings. Your chance to influence our next steps & get more involved in the network. Join one of our upcoming sessions: 🗓 Dec 4 — 06:00 UTC t1p.de/m3gty 🗓 Dec 4 — 18:00 UTC t1p.de/xaxsu 🗓 Dec 5 — 13:00 UTC t1p.de/c4icd Help guide where ITMN goes next! 🚀
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Jeff Dukes @dukesjeff.bsky.social · 23/11/2025
Short story Sunday: There once was a California newt heading down a leafy trail 1/??
A brown California newt walks across some brown fallen oak leaves
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David Lowry @davidlowry.bsky.social · 20/11/2025
I am currently searching for a new postdoctoral researcher to study the evolution, genetics, and physiology of cold acclimation and freezing tolerance in switchgrass at Michigan State University. This work will be funded by a newly funded five-year DOE grant. careers.msu.edu/jobs/researc...
careers.msu.edu
Research Associate-Fixed Term - East Lansing, Michigan, United States
Position Summary The Lowry Lab at Michigan State University is searching for a postdoctoral research associate to conduct molecular and physiological experiments to understand the causes of genetic va...
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