Justin Maxwell
@l-tulipifera.bsky.social
Professor at Indiana University. Climate and forest ecology. Post about trees, forests, drought, and tropical cyclones.
Pinned
Justin Maxwell
@l-tulipifera.bsky.social
· Apr 16
Thrilled to announce our work reconstructing the western flank of the North Atlantic subtropical high (or Bermuda/Azores high) has just been published in Science Advances! This record goes back to 1140 CE! #ScienceAdvancesResearch
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Changes in the western flank of the North Atlantic subtropical high since 1140 CE: Extremes, drivers, and hydroclimatic patterns
Eight centuries of Bermuda high patterns show a 50% increase in western flank variability starting in 1900 CE.
www.science.org
New paper led by @prehistormic.bsky.social out today in Science Advances. Something we have been working on for awhile, nice to see it published! See Josh’s thread for more details and please check out the paper!
Reposted by Justin Maxwell
Temperate deciduous forests are found in three global regions. We compared taxonomic and phylogenetic diversity of forest plant communities among these regions in a new Ecography article led by Javier Loidi and Josep Padullés Cubino:
doi.org/10.1002/ecog...
@ecography.bsky.social
doi.org/10.1002/ecog...
@ecography.bsky.social
November 14, 2025 at 6:49 PM
Temperate deciduous forests are found in three global regions. We compared taxonomic and phylogenetic diversity of forest plant communities among these regions in a new Ecography article led by Javier Loidi and Josep Padullés Cubino:
doi.org/10.1002/ecog...
@ecography.bsky.social
doi.org/10.1002/ecog...
@ecography.bsky.social
Today’s local fieldwork was colder but older! I think we may have found some 300 yr old beech and sweet gum! Will be going back to this site in the future, some nice oak and Nyssa as well.
November 9, 2025 at 11:20 PM
Today’s local fieldwork was colder but older! I think we may have found some 300 yr old beech and sweet gum! Will be going back to this site in the future, some nice oak and Nyssa as well.
Some local fall fieldwork in southeast Indiana. Sample some 200-250yr old black gum, sweet gum, American beech, and white oak! Great weather but will be colder tomorrow.
November 9, 2025 at 2:10 AM
Some local fall fieldwork in southeast Indiana. Sample some 200-250yr old black gum, sweet gum, American beech, and white oak! Great weather but will be colder tomorrow.
This time of year some the trees look like lanterns in the mornings and evenings.
November 4, 2025 at 2:07 AM
This time of year some the trees look like lanterns in the mornings and evenings.
Reposted by Justin Maxwell
5pm EDT Oct 27th Key Messages for Category 5 #Hurricane #Melissa:
#Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov
#Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov
October 27, 2025 at 9:40 PM
5pm EDT Oct 27th Key Messages for Category 5 #Hurricane #Melissa:
#Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov
#Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov
Reposted by Justin Maxwell
🍃 Functional traits best predict tree growth when age and leaf habit are considered–growth relationships shift over time and between deciduous and evergreen species🌿
@meganedeziel.bsky.social
@alainpaquette.bsky.social
Read more:https://buff.ly/2d9ppq9
@meganedeziel.bsky.social
@alainpaquette.bsky.social
Read more:https://buff.ly/2d9ppq9
October 22, 2025 at 4:15 PM
🍃 Functional traits best predict tree growth when age and leaf habit are considered–growth relationships shift over time and between deciduous and evergreen species🌿
@meganedeziel.bsky.social
@alainpaquette.bsky.social
Read more:https://buff.ly/2d9ppq9
@meganedeziel.bsky.social
@alainpaquette.bsky.social
Read more:https://buff.ly/2d9ppq9
Reposted by Justin Maxwell
A fabulous #postdoc opportunity to work with my colleague Nick Ward at PNNL on forest trace gas cycling, studying a poorly constrained component of the Earth system! Please share widely: careers.pnnl.gov/jobs/10985?l...
Post Doctorate Research Associate – Forest Trace Gas Cycling in Sequim, Washington | Pacific Northwest National Laboratory
PNNL is hiring a Post Doctorate Research Associate – Forest Trace Gas Cycling in Sequim, Washington. Review all of the job details and apply today!
careers.pnnl.gov
October 22, 2025 at 10:16 AM
A fabulous #postdoc opportunity to work with my colleague Nick Ward at PNNL on forest trace gas cycling, studying a poorly constrained component of the Earth system! Please share widely: careers.pnnl.gov/jobs/10985?l...
Reposted by Justin Maxwell
🪵 Diameter drives short-term biomass gains, but long-term carbon storage hinges on wood density, especially in humid forests. To improve accuracy, biomass models should account for radial wood density variation and climate ☁️
🔎 Find out more: buff.ly/kZFoh9B
🔎 Find out more: buff.ly/kZFoh9B
October 19, 2025 at 4:03 PM
🪵 Diameter drives short-term biomass gains, but long-term carbon storage hinges on wood density, especially in humid forests. To improve accuracy, biomass models should account for radial wood density variation and climate ☁️
🔎 Find out more: buff.ly/kZFoh9B
🔎 Find out more: buff.ly/kZFoh9B
Reposted by Justin Maxwell
We are looking for a new postdoc to join a collaborative team at Indiana University. We are working to reduce bias in estimates of forest carbon uptake at local to global scales. Deadline for best consideration is November 15, 2025. More details below!
indiana.peopleadmin.com/postings/30636
indiana.peopleadmin.com/postings/30636
Postdoctoral Research Scholar - Forest Carbon
We are seeking a highly-motivated postdoctoral fellow to conduct research focused on reducing bias and uncertainty in the measurement and monitoring of forest carbon uptake from local to global scales...
indiana.peopleadmin.com
October 4, 2025 at 6:16 PM
We are looking for a new postdoc to join a collaborative team at Indiana University. We are working to reduce bias in estimates of forest carbon uptake at local to global scales. Deadline for best consideration is November 15, 2025. More details below!
indiana.peopleadmin.com/postings/30636
indiana.peopleadmin.com/postings/30636
Reposted by Justin Maxwell
Here is a look of #Helene and the Predecessor Rainfall Event, which began setting up around this time a year ago.
I updated this to incorporate the @nws.noaa.gov flash flood warnings and flash flood emergencies.
#FLwx #GAwx #ALwx #SCwx #NCwx #TNwx @spann.bsky.social @wxbrad.bsky.social
I updated this to incorporate the @nws.noaa.gov flash flood warnings and flash flood emergencies.
#FLwx #GAwx #ALwx #SCwx #NCwx #TNwx @spann.bsky.social @wxbrad.bsky.social
September 24, 2025 at 8:54 PM
Here is a look of #Helene and the Predecessor Rainfall Event, which began setting up around this time a year ago.
I updated this to incorporate the @nws.noaa.gov flash flood warnings and flash flood emergencies.
#FLwx #GAwx #ALwx #SCwx #NCwx #TNwx @spann.bsky.social @wxbrad.bsky.social
I updated this to incorporate the @nws.noaa.gov flash flood warnings and flash flood emergencies.
#FLwx #GAwx #ALwx #SCwx #NCwx #TNwx @spann.bsky.social @wxbrad.bsky.social
Reposted by Justin Maxwell
Here's a gofundme to help out Josh Bregy, who recently was fired from his tenure-track job at Clemson
Donate to Defend Academic Freedom: Help Dr. Bregy, organized by Steven Lam
My name is Steven Lam, and I am a proud alumnus of Clemson University. It breaks my… Steven Lam needs your support for Defend Academic Freedom: Help Dr. Bregy
www.gofundme.com
September 19, 2025 at 8:41 PM
Here's a gofundme to help out Josh Bregy, who recently was fired from his tenure-track job at Clemson
Reposted by Justin Maxwell
You think you know oak trees by their bark? Here are two >200 year old bur oaks I sampled in Northern Wisconsin, a St Croix River flood plain/terrace.
September 19, 2025 at 2:15 AM
You think you know oak trees by their bark? Here are two >200 year old bur oaks I sampled in Northern Wisconsin, a St Croix River flood plain/terrace.
Reposted by Justin Maxwell
We mourn the passing of our Editor-in-Chief Steve Long.
His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..
His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..
September 18, 2025 at 6:32 PM
We mourn the passing of our Editor-in-Chief Steve Long.
His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..
His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..
Reposted by Justin Maxwell
🌳 New paper out from our lab 🌲
We looked at how different harvest intensities and types influence timber production, carbon storage, tree biodiversity, and species composition in northeastern Appalachia
🧪🌎🍁
Just-In at CJFR 👇
doi.org/10.1139/cjfr...
We looked at how different harvest intensities and types influence timber production, carbon storage, tree biodiversity, and species composition in northeastern Appalachia
🧪🌎🍁
Just-In at CJFR 👇
doi.org/10.1139/cjfr...
Impacts of management on ecosystem service capacity in northeastern U.S. Appalachian forest stands
Forests are critical resources that provide multiple ecosystem services. However, the capacity to produce these services depends on how forests are managed. The northeastern US is a highly forested an...
doi.org
September 12, 2025 at 1:14 PM
🌳 New paper out from our lab 🌲
We looked at how different harvest intensities and types influence timber production, carbon storage, tree biodiversity, and species composition in northeastern Appalachia
🧪🌎🍁
Just-In at CJFR 👇
doi.org/10.1139/cjfr...
We looked at how different harvest intensities and types influence timber production, carbon storage, tree biodiversity, and species composition in northeastern Appalachia
🧪🌎🍁
Just-In at CJFR 👇
doi.org/10.1139/cjfr...
Reposted by Justin Maxwell
Hey, I’m writing a book and it’s got a cover
We also have a book cover release. Brief Ecology Press is publishing @benlockwood.bsky.social's upcoming book, Ecologizing Society, which now has a cover design
www.briefecology.com/p/the-eco-up...
www.briefecology.com/p/the-eco-up...
September 13, 2025 at 10:22 PM
Hey, I’m writing a book and it’s got a cover
Reposted by Justin Maxwell
🌳 New Tansley Insight!
What really limits tree growth—carbon source or sink? 🤔
I argue it’s not either/or but a distal → proximal continuum: from photosynthesis to transport and cell division, drivers act together to shape C allocation & growth 🌱🌍
🔗 nph.onlinelibrary.wiley.com/doi/10.1111/nph.70516
What really limits tree growth—carbon source or sink? 🤔
I argue it’s not either/or but a distal → proximal continuum: from photosynthesis to transport and cell division, drivers act together to shape C allocation & growth 🌱🌍
🔗 nph.onlinelibrary.wiley.com/doi/10.1111/nph.70516
Distal to proximal: a continuum of drivers shaping tree growth and carbon partitioning
The relationship between tree carbon (C) assimilation and growth is central to understanding tree functioning and forecasting forest C sequestration, yet remains unresolved. The long-standing debate ...
nph.onlinelibrary.wiley.com
September 5, 2025 at 9:54 AM
🌳 New Tansley Insight!
What really limits tree growth—carbon source or sink? 🤔
I argue it’s not either/or but a distal → proximal continuum: from photosynthesis to transport and cell division, drivers act together to shape C allocation & growth 🌱🌍
🔗 nph.onlinelibrary.wiley.com/doi/10.1111/nph.70516
What really limits tree growth—carbon source or sink? 🤔
I argue it’s not either/or but a distal → proximal continuum: from photosynthesis to transport and cell division, drivers act together to shape C allocation & growth 🌱🌍
🔗 nph.onlinelibrary.wiley.com/doi/10.1111/nph.70516
Reposted by Justin Maxwell
New research just dropped! Revisiting Paradigms Related to Root Hydraulic Limitation Under Drought is now available—challenging classic hydraulic-fuse models and outdated assumptions about root embolism, xylem safety-efficiency trade-offs, and ABA signalling. doi.org/10.1007/124_...
September 9, 2025 at 7:30 AM
New research just dropped! Revisiting Paradigms Related to Root Hydraulic Limitation Under Drought is now available—challenging classic hydraulic-fuse models and outdated assumptions about root embolism, xylem safety-efficiency trade-offs, and ABA signalling. doi.org/10.1007/124_...
We did our annual pilgrimage to a local apple orchard and they were loaded this year! Probably the most I’ve seen in the 12ish years we’ve been doing this. Tasty as always!
September 7, 2025 at 7:14 PM
We did our annual pilgrimage to a local apple orchard and they were loaded this year! Probably the most I’ve seen in the 12ish years we’ve been doing this. Tasty as always!
Reposted by Justin Maxwell
The first chapter of my dissertation is out in Ecology Letters! We pooled data from forest sites across the globe to understand how forests differ in their carbon investment in reproduction (flowers, fruits, seeds). #ForestEcology #GlobalEcology onlinelibrary.wiley.com/doi/full/10....
Forest Age Rivals Climate to Explain Reproductive Allocation Patterns in Forest Ecosystems Globally
Forest allocation of net primary productivity (NPP) to reproduction is poorly quantified globally, despite its critical role in forest regeneration and a well-supported trade-off with allocation to g...
onlinelibrary.wiley.com
September 2, 2025 at 7:13 PM
The first chapter of my dissertation is out in Ecology Letters! We pooled data from forest sites across the globe to understand how forests differ in their carbon investment in reproduction (flowers, fruits, seeds). #ForestEcology #GlobalEcology onlinelibrary.wiley.com/doi/full/10....
Reposted by Justin Maxwell
📢 Paper alert!
🌲 How do disturbances affect species and structural diversity in European forests? Are disturbed forests more sensitive to subsequent disturbances?
Read our new paper, led by #NikoKulha and with @gkunstler.bsky.social, @mikkopel.bsky.social, to find out more!
doi.org/10.1111/geb....
🌲 How do disturbances affect species and structural diversity in European forests? Are disturbed forests more sensitive to subsequent disturbances?
Read our new paper, led by #NikoKulha and with @gkunstler.bsky.social, @mikkopel.bsky.social, to find out more!
doi.org/10.1111/geb....
Structural and Compositional Disturbance Legacies Mediate the Resistance of European Forests to Repeated Disturbances
Aim
Climate change is altering forest disturbance regimes across Europe. Structural and species diversity are generally thought to enhance disturbance resistance. However, how disturbances affect st.....
doi.org
September 3, 2025 at 7:55 AM
📢 Paper alert!
🌲 How do disturbances affect species and structural diversity in European forests? Are disturbed forests more sensitive to subsequent disturbances?
Read our new paper, led by #NikoKulha and with @gkunstler.bsky.social, @mikkopel.bsky.social, to find out more!
doi.org/10.1111/geb....
🌲 How do disturbances affect species and structural diversity in European forests? Are disturbed forests more sensitive to subsequent disturbances?
Read our new paper, led by #NikoKulha and with @gkunstler.bsky.social, @mikkopel.bsky.social, to find out more!
doi.org/10.1111/geb....
Reposted by Justin Maxwell
What drives photosynthesis temperature sensitivity? New #GCB paper from #MichaletzLab grad #JosefGaren uses #FAsTeR to show it's 1‑day weather, not traits, origin climate, or phylogeny!
www.researchgate.net/publication/...
@ubcbiodiversity.bsky.social @science.ubc.ca @globalchangebio.bsky.social
www.researchgate.net/publication/...
@ubcbiodiversity.bsky.social @science.ubc.ca @globalchangebio.bsky.social
September 2, 2025 at 7:13 PM
What drives photosynthesis temperature sensitivity? New #GCB paper from #MichaletzLab grad #JosefGaren uses #FAsTeR to show it's 1‑day weather, not traits, origin climate, or phylogeny!
www.researchgate.net/publication/...
@ubcbiodiversity.bsky.social @science.ubc.ca @globalchangebio.bsky.social
www.researchgate.net/publication/...
@ubcbiodiversity.bsky.social @science.ubc.ca @globalchangebio.bsky.social
Reposted by Justin Maxwell
I like big trees and I cannot lie. Great bit of work by @kimcalders.bsky.social @louiseterryn.bsky.social and colleagues using innovative climbing and scanning approach. Stunning illustration of tree structural and biodiversity complexity zslpublications.onlinelibrary.wiley.com/doi/full/10....
Integrating terrestrial and canopy laser scanning for comprehensive analysis of large old trees: Implications for single tree and biodiversity research
Canopy laser scanning (CLS) enhances 3D measurements of large trees by lifting laser scanners into the canopy. Combining CLS with terrestrial laser scanning improves point cloud precision, reduces oc...
zslpublications.onlinelibrary.wiley.com
September 3, 2025 at 10:02 AM
I like big trees and I cannot lie. Great bit of work by @kimcalders.bsky.social @louiseterryn.bsky.social and colleagues using innovative climbing and scanning approach. Stunning illustration of tree structural and biodiversity complexity zslpublications.onlinelibrary.wiley.com/doi/full/10....
August views from the yard were dominated by false sunflower but ironweed, black eyed Susan, and tall coreopsis are in the mix.
August 31, 2025 at 6:19 PM
August views from the yard were dominated by false sunflower but ironweed, black eyed Susan, and tall coreopsis are in the mix.
Reposted by Justin Maxwell
🌲 What if a terrestrial laser scanner cost ~€2k, and still delivered reliable forest data?
We built one. And it works.
→ DBH accuracy ~1.5 cm
→ Tree height ~1 m
→ Open hardware + open software
Accessible 3D forest monitoring
Wherever you are, get in touch 🌍
Preprint: bit.ly/3HneatY
#LiDAR
We built one. And it works.
→ DBH accuracy ~1.5 cm
→ Tree height ~1 m
→ Open hardware + open software
Accessible 3D forest monitoring
Wherever you are, get in touch 🌍
Preprint: bit.ly/3HneatY
#LiDAR
August 20, 2025 at 7:34 AM
🌲 What if a terrestrial laser scanner cost ~€2k, and still delivered reliable forest data?
We built one. And it works.
→ DBH accuracy ~1.5 cm
→ Tree height ~1 m
→ Open hardware + open software
Accessible 3D forest monitoring
Wherever you are, get in touch 🌍
Preprint: bit.ly/3HneatY
#LiDAR
We built one. And it works.
→ DBH accuracy ~1.5 cm
→ Tree height ~1 m
→ Open hardware + open software
Accessible 3D forest monitoring
Wherever you are, get in touch 🌍
Preprint: bit.ly/3HneatY
#LiDAR