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Bill Smith

@wkolby.bsky.social
200 followers 132 following 26 posts

Associate Professor @uarizona.bsky.social. Ecosystem ecology, ecophysiology, multi-scale remote sensing, drylands. Lab website: sites.arizona.edu/ecd-lab; NASA ARID website: aridscoping.arizona.edu

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Reposted by Bill Smith
Seth Munson @smmunson.bsky.social · 16/09/2026
Our new paper led by Tim Ohlert explores how low impact solar energy development shapes plant diversity across spatial scales. doi.org/10.1088/2515...
doi.org
The effect of solar energy development on plant diversity across spatial scales
The effect of solar energy development on plant diversity across spatial scales, Ohlert, Timothy J, Karban, Claire C, Munson, Seth M, Smith, Melinda D
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Bill Smith @wkolby.bsky.social · 15/09/2026
Happy to share a new paper from a field campaign with an amazing team: "Experimental evidence of a biological soil crust degradation climate warming amplification feedback," with @ecology-awesome.bsky.social @villarreal-miguel.bsky.social and others www.nature.com/articles/s43...
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Bill Smith @wkolby.bsky.social · 10/09/2026
Happy to share a new lab @natureportfolio.nature.com paper, "Greening masks stability loss in drylands," led by outstanding @uarizona.bsky.social PhD candidate Wen Zhang rdcu.be/HMbVwS41yvqa
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Justin Maxwell @l-tulipifera.bsky.social · 13/08/2026
Trees don’t always shift upslope with increasing temperature. Those that are more climate sensitive do but other species are moving downslope. Hydraulic traits can help determine which direction species will shift. www.nature.com/articles/s41...
nature.com
Hydraulic traits govern opposing range shifts of montane trees under warming - Nature Climate Change
The authors integrate dendrochronological records with range shifts to show that shifts in montane tree species are tightly linked to tree hydraulic properties. While climate-sensitive species track w...
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Jonathan Coop @coopecology.bsky.social · 14/08/2026
Our new paper assesses relationships between wildfire rate of spread, area burned, and severity in western + boreal North American conifer forests 2012-2023. Take home message in the title: faster--> bigger--> more severe. With @grumpyunclesean.bsky.social, @jessforplanet.bsky.social and more! 🔥🧪🌍
science.org
Faster, bigger, more severe: Extreme wildfire spread sets the stage for forest ecosystem change in western and boreal North America
A relatively small number of rapidly spreading wildfire events burn disproportionately large areas. But beyond area burned, do fast fires produce distinct postfire ecological outcomes? Here, we measur...
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ClimateBook @climatebook.bsky.social · 12/06/2026
The land carbon cycle, and its fate in a warming world is clearly one of the big "known unknowns" in our climate future. It is particularly crucial to know what happens to the land carbon budget after we achieve net zero. All that carbon we have stocked so far is very vulnerable, being present
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Scott Goetz @sjgoetz.bsky.social · 10/06/2026
Important to comment on this OMB Science Policy report, esp for you EC folks (and follow the guidance so your comments are not ignored)! Please spread the word as I’m not super savvy on hashtags & all that ;-} Trump’s Assaults on Scientific Research Just Got Worse www.nytimes.com/2026/06/09/o...
nytimes.com
Opinion | Trump’s Assaults on Scientific Research Just Got Worse
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Seth Munson @smmunson.bsky.social · 31/05/2026
This research provides critical information to balance renewable energy expansion and ecological function in warm deserts link.springer.com/article/10.1...
link.springer.com
Ecovoltaic solar energy development creates novel microclimate, temperature, and soil moisture patterns under solar panels in a warm desert - Ecological Processes
Background As solar energy development expands in desert regions, new installation practices and solar technologies seek to balance ecosystem conservation and energy generation (ecovoltaics). The Gemi...
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Kevin Anchukaitis @thirstygecko.bsky.social · 30/04/2026
Physics-based models outperform AI weather forecasts of record-breaking extremes www.science.org/doi/10.1126/...
science.org
Physics-based models outperform AI weather forecasts of record-breaking extremes
Physics-based models still outperform artificial intelligence-based weather models in forecasting record-breaking extreme events.
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Jingfeng Xiao @jingfengxiao.bsky.social · 26/04/2026
2024 wasn’t just the hottest year on record. It also saw the fastest rise in atmospheric CO₂ ever observed. A new study in @NatureComms shows a sharp drop in the land carbon sink, driven by a surge in ecosystem respiration under hot+wet extremes, despite enhanced GPP. www.nature.com/articles/s41...
nature.com
Dramatic increase in ecosystem respiration causes record-breaking atmospheric CO2 growth rate in 2024 - Nature Communications
Researchers have found that extreme hot-wet weather in 2024 triggered a spike in ecosystem respiration, mainly in tropical non-forests, significantly reducing the year’s land carbon sink and pushing t...
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Jingfeng Xiao @jingfengxiao.bsky.social · 02/04/2026
Our new paper in Nature Geoscience reveals a substantial slowdown in the rate of increase in gross primary production (GPP) in drylands, due to water constraints, but a sustained increase in humid regions in response to rising temperature and CO2. Led by Fei Li. www.nature.com/articles/s41...
nature.com
Dryland dominance in the slowdown of global vegetation carbon uptake - Nature Geoscience
Machine learning upscaling analyses of global FLUXNET carbon and water flux measurements indicate that dryland vegetation productivity showed a negligible increase between 1982–2000 and 2001–2022, whe...
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Brent Toderian @brenttoderian.bsky.social · 30/03/2026
“I was expecting an attack on climate science,” @drkatemarvel.bsky.social said. “But actually, who they went after 1st was pediatric cancer & Parkinson’s research, and childhood vaccines. I was completely unprepared for an attack on science, because it’s a means of finding out & telling the truth.”
nytimes.com
Prominent Climate Scientist Resigns From NASA, Citing Trump’s Attack on Science
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Bill Smith @wkolby.bsky.social · 24/03/2026
Happy to share a new lab #AgrForMet paper, "Proximal measurements of microwave reflectance using GNSS-IR track semi-arid grassland vegetation dynamics during greening and browning phases," led by Dr. Charlie Devine authors.elsevier.com/c/1moi6cFXJs...
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Global Change Biology @globalchangebio.bsky.social · 07/03/2026
The Dual Role of NPP in Mediating and Moderating Climate‐Soil Carbon Pathways Under Warming and Drought Across European Ecosystems 🔗 buff.ly/CZv3USk
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Global Change Biology @globalchangebio.bsky.social · 08/03/2026
RESEARCH HIGHLIGHT Lichens as Biomonitors of Air Quality and Climate 🔗
buff.ly
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Rupert Seidl @rupertseidl.bsky.social · 05/03/2026
The future of Europe’s forest disturbance regimes– a thread. Tl, dr: Disturbances from wildfire, bark beetles & wind will continue to increase in the coming decades. Under unabated climate change disturbances could more than double by 2100. New paper out in @science.org doi.org/10.1126/scie...
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Bill Smith @wkolby.bsky.social · 26/02/2026
Happy to share a new lab paper, "Proximal Measurements of Solar-Induced Fluorescence and Surface Reflectance Capture Seasonal Productivity and Drought Stress Dynamics in a Semiarid Grassland Ecosystem" spj.science.org/doi/10.34133...
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New Phytologist @newphyt.bsky.social · 23/02/2026
Ecophysiology for climate-smart forest management #TansleyReview by Gessler et al. @wslresearch.bsky.social @arthurobuntspecht.bsky.social @annekempel.bsky.social @josegruenzweig.bsky.social nph.onlinelibrary.wiley.com/doi/10.1111/... #plantscience
Conceptual model of the expected role of dryland mechanisms along a climatic gradient from cool and moist towards hot and dry conditions, and their relevance for climate-smart forestry.
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EGU Hydrological Sciences Division @hs.egu.eu · 23/02/2026
New in series of HydroTalks: Prof. Sally E. Thompson on ecohydrology, vegetation, climate change & working across continents. Exploring how plants, water, and climate interact across diverse landscapes and research cultures. #ecohydrology #climatechange blogs.egu.eu/divisions/hs...
blogs.egu.eu
HydroTalks: Prof. Sally E. Thompson on ecohydrology, vegetation, climate change and working across continents
In episode 7 of the Hydrotalks podcast, our guest was Dr. Sally Thompson ( Sally Thompson – the UWA Profiles and Research Repository ). She is a Professor at the University of Western Australia, and t...
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Bill Smith @wkolby.bsky.social · 19/02/2026
Announcing a new special issue: Focus on Remote Sensing, Artificial Intelligence, and Process Modelling for Advancing Dryland Ecology Research. Please reach out with any questions! @ecology-awesome.bsky.social @villarreal-miguel.bsky.social iopscience.iop.org/collections/...
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Tommaso Jucker @tommaso-jucker.bsky.social · 17/01/2026
Massive update to the Global Wood Density Database out today @newphyt.bsky.social led by the brilliant Fabian Fischer. What an amazing community resource! 🧪🍁🌐 nph.onlinelibrary.wiley.com/doi/10.1111/...
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Jacquelyn Gill @jacquelyngill.bsky.social · 16/01/2026
In good news, your advocacy for science funding is paying off! Congress has just rejected the massive cuts to NASA's 2026 budget. (Sadly, they didn't include a provision for saving @ncar-ucar.bsky.social but we use this win to keep fighting!)
planetary.org
You just saved NASA's budget
Here's what Congress rejected of the draconian cuts faced by NASA in FY 2026.
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Sean Michaletz @seanmichaletz.bsky.social · 15/01/2026
🍁Funding for new PhD students ($40k/yr) & postdocs ($70k/yr) coming from outside Canada. Contact me if interested in #Ecophysiology at #UBC in #Vancouver! Possible topics: leaf physiology, thermal ecology, microclimate, scaling, tree physiology, forest ecology, more! michaletzlab.org Please share!
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New Phytologist @newphyt.bsky.social · 13/01/2026
Asymmetry in leaf phosphorus concentration of woody plants and its divergent drivers in the Northern and Southern Hemispheres Meng et al. nph.onlinelibrary.wiley.com/share/JH53DN...
A conceptual framework for the mechanisms driving latitudinal variation in leaf phosphorus concentrations of woody plants in the Northern and Southern Hemispheres.
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New Phytologist @newphyt.bsky.social · 13/01/2026
Decadal increases in grassland biomass production from chronic N additions are eliminated by annual hay cutting Zhang et al. nph.onlinelibrary.wiley.com/share/URHVZT...
Interannual dynamics of species richness and aboveground biomass production in response to haying and nitrogen addition over 10 years.
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OliverRupert @olivierrupert.bsky.social · 09/01/2026
NONE OF THIS IS GOING TO STOP UNLESS WE MAKE IT STOP. #FightFascism #FascismInAmerica
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New Phytologist @newphyt.bsky.social · 09/01/2026
Real-world testing of the #isohydrocity concept Matthias Arend, et al. nph.onlinelibrary.wiley.com/doi/10.1111/... #PlantScience
Conceptual presentation of the Ψpd vs Ψmd dehydration trajectory based on current theory (Hartmann et al., 2021).
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New Phytologist @newphyt.bsky.social · 08/01/2026
Photosynthesis beyond the visible spectrum detected by a research group from the University of Padua www.unipd.it/news/photosy... Nannochloropsis gaditana is of great biotechnological interest for the production of biofuels, fatty acids, and omega-3. #PlantScience @elisabettaliistro.bsky.social
unipd.it
Photosynthesis beyond the visible spectrum detected by a research group from Unipd
The study titled "Thylakoids reorganization enables driving photosynthesis under far‐red light in the microalga Nannochloropsis gaditana," published in «New Phytologist» and conducted by the research…
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New Phytologist @newphyt.bsky.social · 08/01/2026
#Viewpoint: Moving from an experiment-dominated to an observation-dominated era in #global #change impact research on vegetation Sebastian Leuzinger & Belinda Medlyn 👇 📖 nph.onlinelibrary.wiley.com/doi/10.1111/... #LatestIssue
Fig. 1 Settings for manipulative global change experiments have changed substantially from their onset around the early 1980s to the present.
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Global Change Biology @globalchangebio.bsky.social · 08/01/2026
Warming‐Driven Abrupt Shifts in Alpine Permafrost Dynamics With Elevation 🔗 buff.ly/TIJnLVR
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Salty Snowbird @belliled.bsky.social · 31/12/2025
GOP: Guardians of Pedophiles. Stinky will make bank just like he’s doing with pardons. I wonder what’s the going rate per name removal? rawstory.com/trump-epstein-2674838346/?utm_source=superhead
rawstory.com
MAGA donors may be pressuring Trump to bury their names out of Epstein files: reporter
A prominent reporter in the Jeffrey Epstein case floated a startling possibility on Tuesday that powerful donors could be leaning on President Donald Trump to quash any damning information from being ...
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New Phytologist @newphyt.bsky.social · 31/12/2025
Explore '#Anthromes and terrestrial carbon: From the deep past to net-zero' – a new joint Special Collection from Plants, People, Planet and New Phytologist 👇 📚 nph.onlinelibrary.wiley.com/hub/anthrome... #PlantScience
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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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Abigail Swann, PhD @ecoclimatelab.bsky.social · 26/12/2025
Reckless destruction of climate science won’t stop climate change from happening.
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New Phytologist @newphyt.bsky.social · 23/12/2025
#Leaf economics links #drought and #heat tolerance across contrasting habitats 📖 nph.onlinelibrary.wiley.com/doi/10.1111/... by Wang et al. @WileyPlantSci #PlantScience
A conceptual framework describing how leaf carbon economics, drought, and heat tolerance are coordinated through the divergence of leaf habits of both evergreen and deciduous trees.
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Natasha MacBean @nmacbean.bsky.social · 24/12/2025
Western University is seeking applications for the Canada Impact+ Research Chairs (CIRC) program, which aims to attract world-leading researchers to come and work at Canadian universities: www.uwo.ca/research/can... 1/3
canada.ca
Application process - Canada.ca
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Joe Neguse @joeneguse.bsky.social · 23/12/2025
In the span of four days, we’ve built a coalition of over 80 lawmakers — including several Republicans — to stop the dismantling of NCAR. I’m grateful to them for their efforts as we work to secure language protecting NCAR in the upcoming CJS appropriations bill. We will not back down! 👇🏽👇🏽👇🏽
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@KeepItBlueDems.bsky.social @keepitbluedems.bsky.social · 22/12/2025
www.thedailybeast.com/cbss-60-minu...
thedailybeast.com
‘60 Minutes’ Staff Threaten to Quit Over Pro-Trump Censorship
Controversy has engulfed CBS amid mounting accusations of politicized management under the network’s new MAGA-curious chief.
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New Phytologist @newphyt.bsky.social · 22/12/2025
✨ Paper spotlight ✨ (🧵 1/6) Soil organic matter dynamics under changing precipitation regimes nph.onlinelibrary.wiley.com/doi/10.1111/... @teamrat.bsky.social @aaberhe.com
Fig. 1 Research history of soil organic matter (SOM) dynamics at the plant–fauna–microbe interfaces under changing precipitation and soil water availability.
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Florian Schnabel @mixedforests.bsky.social · 22/12/2025
Just before the Xmas break🎉 In @journalofecology.bsky.social and led by Anvar Sanaei, we provide insight into #trait coordination across 90 common and future European #tree species👇 doi.org/10.1111/1365... @agwirthweigelt.bsky.social @unileipzig.bsky.social @uni-freiburg.de
doi.org
Above‐ and below‐ground trait coordination across 90 angiosperm and gymnosperm tree species in a common garden experiment
This research highlights the significance of elucidating the mechanisms behind above-and below-ground organs. The varying trait coordination across clades indicates different resource acquisition str...
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Ankur Desai @profdesai.bsky.social · 23/12/2025
NCAR has been the magic sauce that has made weather/climate studies and advances in US and the world over great. madison.com/news/local/e... www.jsonline.com/story/news/e...
madison.com
Trump’s closure of national weather center may imperil UW-Madison research
The planned closure of the National Center for Atmospheric Research would endanger decades of research at UW-Madison and UW-Milwaukee, scientists say.
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New Phytologist @newphyt.bsky.social · 21/12/2025
#TansleyReview: Shortcutting photorespiration: avenues and challenges toward realizing higher-yielding photorespiratory bypass #crops Meacham-Hensold et al. 👇 📖 nph.onlinelibrary.wiley.com/doi/10.1111/... #LatestIssue #PlantScience
Fig. 4 Summarized yield and biomass increases reported in published photorespiratory bypass field trials.
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Katharine Hayhoe @katharinehayhoe.com · 18/12/2025
If you are in the US and you would like to send a message to your elected representative about the proposed dissolution of the National Center for Atmospheric Research, @agu.org makes it easy with a template here: agu.quorum.us/campaign/151... #AGU25
agu.quorum.us
Save NCAR from being dismantled today!
The Trump Administration has vowed to dissolve the center that provides critical extreme weather and climate data for our nation.
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Brian J. Enquist @bjenquist.bsky.social · 19/12/2025
New postdoctoral fellowship opportunity! Please pass along. Excited to announce the launch of the Tom Lovejoy Fellowship Program at the University of Arizona for innovative research to protect species, sustain ecosystems, and promote a thriving planet lovejoycenter.arizona.edu/lovejoy-fell... 🧪🌐🌾
Application Process

Image
Woman behind a podium presenting.
Jessie Golding, BBCS postdoc, presenting at ICCB 2025.

Apply to become a Lovejoy Fellow by submitting your resume, cover letter, and contact information for three references through the University of Arizona Talent Portal (link upcoming) by the first review date of January 30, 2026.

Your cover letter should: 

Identify 1-2 Lovejoy BBCS faculty you would be interested in working with and explain the primary research directions you would want to pursue in collaboration with this faculty member. You are strongly encouraged to reach out to faculty before submitting your application.
Describe your experience with or interest in inter- or transdisciplinary research.
Explain how this experience will positively impact your career trajectory.
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Rosie Fisher @rosieafisher.bsky.social · 17/12/2025
That the NCAR Mesa lab is beautiful is no accident. Assigning a beautiful place and building to the important task of understanding our planet speaks of a society that values both this undertaking, and the people who do it. To take that away is emblematic of attempts to undermine this status. 1/2
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Bill Smith @wkolby.bsky.social · 16/12/2025
📢 Dryland folks at #AGU25, please join us at 16:15 for B24C: Intersections of Ecology, Hydrology, and Climatology in Earth’s Drylands II Oral agu.confex.com/agu/agu25/me... Also, announcing a new dryland special issue in #ERE iopscience.iop.org/collections/...
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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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Renato Braghiere @renatobrgh.bsky.social · 13/12/2025
New in AGU Advances: a community vision for a sustained, actionable greenhouse gas observing system. We highlight how tighter integration of top-down and bottom-up approaches can sharpen attribution and bring carbon information closer to management scales. doi.org/10.1029/2025... #GHG #Carbon
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Bill Smith @wkolby.bsky.social · 13/12/2025
Happy to share a new lab paper, Grass-Cast Southwest: A seasonal rangeland productivity forecast for the southwestern United States | Cambridge Prisms: Drylands bit.ly/3XPoVtA
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