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Justin Maxwell

@l-tulipifera.bsky.social

3.2K followers 920 following 140 posts

Professor at Indiana University. Climate and forest ecology. Post about trees, forests, drought, and tropical cyclones.

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Justin Maxwell @l-tulipifera.bsky.social · Apr 16

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!

Dr. Josh Bregy @prehistormic.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/...

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

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Justin Maxwell @l-tulipifera.bsky.social · 3d

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

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

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Justin Maxwell @l-tulipifera.bsky.social · 13d

The look of the male turtle is priceless

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Reposted by Justin Maxwell

Jared Rennie @jjrennie.bsky.social · 13d

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

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Reposted by Justin Maxwell

Scott Robeson @indianaclimate.bsky.social · 18d

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

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Reposted by Justin Maxwell

Steve Voelker @thetreecorener.bsky.social · 19d

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.

Twos similarly sized bur oak stems amidst lush, green, mid-summer floodplain vegetation. The stem on the left has thick furrows in the bark that cast shadows making it appear very dark whereas the stem on the right has relatively thin and closely appressed and peeling bark that makes the tree appear much lighter in color. Both trees have a blue-handled increment borer inserted into the stem and a backbpack at the base.

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Reposted by Justin Maxwell

Global Change Biology @globalchangebio.bsky.social · 19d

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..

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Reposted by Justin Maxwell

Ben Lockwood, PhD @benlockwood.bsky.social · 26d

🌳 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...

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

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Reposted by Justin Maxwell

Ben Lockwood, PhD @benlockwood.bsky.social · 24d

Hey, I’m writing a book and it’s got a cover

Brief Ecology @briefecology.bsky.social · 24d

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...

Cover design for a book called Ecologizing Society: Theory, which shows two threads intertwining represening nature and society

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Reposted by Justin Maxwell

Antoine Cabon @acabon.bsky.social · Sep 5

🌳 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

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

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Reposted by Justin Maxwell

Peter Petrík @peterpetrik94.bsky.social · 29d

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_...

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Justin Maxwell @l-tulipifera.bsky.social · Sep 7

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

Rachel Ward @rward8.bsky.social · Sep 2

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

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Reposted by Justin Maxwell

Julien Barrere @jbarrere.bsky.social · Sep 3

📢 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....

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

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Reposted by Justin Maxwell

Sean Michaletz @seanmichaletz.bsky.social · Sep 2

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

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Reposted by Justin Maxwell

Mathias Disney @matdisney.bsky.social · Sep 3

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

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Justin Maxwell @l-tulipifera.bsky.social · Aug 31

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

Martin Mokros @mokros.bsky.social · Aug 20

🌲 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

Guide + code: https://zenodo.org/records/16531534

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Reposted by Justin Maxwell

Melaine Le Roy @subfossilguy.bsky.social · Aug 30

Today's sample is just... perfect! 🌲💍😍

Can't wait to find out which part of the Holocene it belongs to! 🧊⏳

#subfossil #glacier #Alps

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Reposted by Justin Maxwell

Pieter Zuidema @pieterzuidema.bsky.social · Aug 29

#Tree stems accumulate biomass by adding volume of certain density. Which factor is more important?

Using tropical #treering data we found: diameter increment explains biomass growth at short term; wood density at long term.🌎🌐🍁
#dendrochronology
besjournals.onlinelibrary.wiley.com/doi/10.1111/...

Biomass production of tropical trees across space and time: The shifting roles of diameter growth and wood density

Diameter growth is an important and good indicator of forest carbon production. However, size-related changes in wood density, which are usually neglected, are critical for accurate short- and long-t...

besjournals.onlinelibrary.wiley.com

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Reposted by Justin Maxwell

Jim Stagge @staggehydro.bsky.social · Aug 26

New research led by Kay Sung explores 1,250 years of precipitation trends across U.S. watersheds.

Using tree rings, climate model output, & non-stationary SPI, we show how climate change is shaping seasonal rainfall.

iopscience.iop.org/article/10.1...

#ClimateChange #Hydrology #WaterManagement

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Justin Maxwell @l-tulipifera.bsky.social · Aug 19

It’s ironweed season, love the color of purple flowers but this cluster in my front year are the size of a small tree!

Reposted by Justin Maxwell

Jonathan Myers @jamyersecology.bsky.social · Aug 19

A big congratulations to William Farhan-Rios on this paper in @pnas.org, featuring a study of tropical-forest change over four decades along the Amazon-to-Andes elevational gradient in Bolivia and Peru 🌴 ⛰️ 🌐

@mobotgarden.bsky.social @livingearthcollab.bsky.social

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www.pnas.org/doi/10.1073/...

Amazonian and Andean tree communities are not tracking current climate warming | PNAS

Climate change is shifting species distributions, leading to changes in community composition and novel species assemblages worldwide. However, the...

www.pnas.org

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Reposted by Justin Maxwell

Christiane Werner @chriswernerlab.bsky.social · Aug 19

Our new #review out on Impact of emerging #compound #droughts on #forests🌲🌳: A water supply and demand perspective #PlantBiology onlinelibrary.wiley.com/doi/10.1111/... @charlottegrossiord.bsky.social @simonhaber.bsky.social @vallicrosah.bsky.social @ecosense-sfb-1537.bsky.social 🧪

Impact of emerging compound droughts on forests: A water supply and demand perspective

This review examines the physiological and ecological responses of trees to emerging compound droughts from a water demand and supply perspective, as well as the role of acclimation and consequences ...

onlinelibrary.wiley.com

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Reposted by Justin Maxwell

Jess McLaughlin, PhD (they/them) @jfmclaughlin92.bsky.social · Aug 16

The only visually overwhelming flag that is also a 10/10 state flag

Annalee @flowerhorne.com · Aug 15

Happy Friday to the Maryland State flag

The Maryland flag consists of four quadrants depicting the Calvert and Crossland family crests in yellow, black, red, and white. A bold monument to maximalism. Chivalrous in its devotion to heraldic tradition. Is it beautiful? It loves itself, and that's beautiful. It doesn't need your approval—but it wants you to know that it sees you trying your best and it's proud of you.

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Dr. Joan Dudney @dudney-joan.bsky.social · Aug 14

Really excited to share our new paper on #causalinference & #climatechange attribution out in #EcologyLetters today!

Are you asking "how much" or "if" climate change has impacted your system, then this paper is for you!

🧪🌏🌐🍁🌺🌱🌿
onlinelibrary.wiley.com/doi/10.1111/...

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...

onlinelibrary.wiley.com

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