Lawren Sack
@lawrensack.bsky.social
📤 782
📥 1338
📝 164
Professor at UCLA (EEB, IoES) fascinated by plant life and ecology. he/him/his
reposted by
Lawren Sack
biometlab
2 months ago
I found an obituary for Steve
www.renner-wikoffchapel.com/obituary/Ste...
add a skeleton here at some point
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Ian Wright
4 months ago
Wind and frost have surprisingly strong effects on global patterns in leaf cuticle thickness! Latitude, biome and taxonomy matter too. Other climate variables not so much.
#trait
research from international team including
@lawrensack.bsky.social
@westobymark.bsky.social
.
doi.org/10.1111/nph....
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For the connoisseur of plant traits: the environmental associations of kidney-bean vs dumbbell-shaped stomatal types and their implications. Similar climate associations of stomatal size and density for grasses and non-grasses across communities.
www.nature.com/articles/s41...
4 months ago
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Lawren Sack
Botany One
6 months ago
How do parasitic plants find their prey? New study shows dodder vines use touch sensitivity and light detection to hunt victims. These master grafters even attempt to parasitize metal objects. Learn more:
wp.me/pdRZhH-m3g
#Botany
#PlantScience
🧪
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Lawren Sack
Botanical Society of America
6 months ago
Leaf functional traits, insect
#herbivory
, & fungal damage on early Eocene leaf compression
#fossils
, Dolus Hill, Wyoming New
#AJB
research by Claudia Richbourg, Lily Jackson, Kevin Chamberlain, Ian Miller, Kirk Johnson & Ellen Currano
doi.org/10.1002/ajb2...
#botany
#plantscience
#paleobotany
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Mireia Gómez-Gallego
6 months ago
We found environmental plasticity in Pinus radiata phloem under light limitation and foliar pathogenic infection, with a reduction in phloem cross-sectional area. Have a look here:
onlinelibrary.wiley.com/doi/10.1111/...
a collaboration between New Zealand and
@umr-iam.bsky.social
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Tim Curran
6 months ago
Very excited to see this paper out! Led by
@schwilk.org
, with
@azhar06.bsky.social
@ecologybrad.bsky.social
@rachaelnolan.bsky.social
@alefidelis.bsky.social
@ioliverasmenor.bsky.social
@dendromecon27.bsky.social
@profalistairsmith.bsky.social
bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
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From plant traits to fire behavior: Scaling issues in flammability studies
Despite fire being one of the oldest and most important ecological disturbance processes on Earth, many aspects of fire–vegetation feedbacks are poorly understood, limiting their accurate representat...
https://bsapubs.onlinelibrary.wiley.com/doi/10.1002/ajb2.70040
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Lawren Sack
Tina Schreier
7 months ago
🌿 Excited to share our latest preprint! We tracked how plasmodesmata numbers evolved across the path from C₃ → C₄ photosynthesis in Flaveria - and found a stepwise increase in cell-to-cell connectivity. Thoughts or feedback are most welcome 😊
#PlantScience
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Eva Gril
7 months ago
The beauty of trees as lidar point clouds... 3D pixel art 🌳 🧊 Here, an oak forest stand from the North of France, with a dense understory. Voxelised with AMAPVox
@umramap.bsky.social
, from our terrestrial lidar scans!
@jonlen.bsky.social
#EDYSAN
@terschki.bsky.social
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Journal of Ecology Blog for Medeiros et al. 2025!
jecologyblog.com/2025/04/08/p...
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Plant trait networks: Shifting of whole phenotypes with aridity and functional richness
Camila Medeiros, University of California, Los Angeles, discusses her article: Simplification of woody plant trait networks among communities along a climatic aridity gradient Motivation Plants are…
https://jecologyblog.com/2025/04/08/plant-trait-networks-shifting-of-whole-phenotypes-with-aridity-and-functional-richness/
7 months ago
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Zach Weinersmith
8 months ago
OpenAI’s new image model is great at botany
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Colton the fish squeezer🐟🪴📚🏕️🐝
8 months ago
Wait, what? I took ichthyology in college, and at no point did they explain to me that the reason early vertebrates were dominated by cartilaginous fish wasn't simplicity, but because PLANTS had not yet released enough calcium from rocks for it to become bioavailable for bone development. 🤯 🐟🌎
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Chris Thorogood
8 months ago
Balanophora is a parasitic plant that lacks chlorophyll, and steals its nutrients from tree roots. It lives beneath the rainforest floor, where once in a while, it sends up an orb that glows like the moon.
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Lawren Sack
Botanical Society of America
8 months ago
Endophytic
#bacteria
discovered in oil body organelles of the
#liverworts
Marchantia polymorpha & Radula complanata New
#AJB
research by Blair Young, Barbara Thiers, James White, & Lena Struwe
bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
#botany
#plantscience
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Lawren Sack
Journal of Ecology
8 months ago
🌿The architecture of plant trait networks is more interconnected & complex in communities with higher functional richness under less arid climates 🧪 🌏
buff.ly/iok0dnU
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https://buff.ly/iok0dnU
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Simplification of woody plant trait networks among communities along a climatic aridity gradient - Camila Medeiros, Santiago Trueba, Chris Henry, Leila Fletcher, Jim Lutz, Rodrigo Méndez Alonzo, Nathan Kraft, Lawren Sack - Journal of Ecology
t.co/F6VWVLJ6xl
@nathanjbkraft.bsky.social
9 months ago
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The determination of leaf size on the basis of developmental traits - Zeqing Ma, Thomas N. Buckley, Lawren Sack - New Phytologist
@tombuckleylab.bsky.social
t.co/EFgmQo1qWy
9 months ago
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Lawren Sack
Jane Langdale 🌱 🌾
9 months ago
A curious, modest man with an encyclopaedic knowledge. No ego but a quiet self-confidence that inspired many. No doubt many publications in the coming years will report innovative ideas that he thought of decades ago….
add a skeleton here at some point
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Jonathan Lenoir 🌳🌲🌴
11 months ago
Very rapid
#thermophilization
&
#xerophilisation
of grassland
#plant
#communities
🌾🌼🍀🌸in the California Floristic Province
#CFP
attributed to
#climate
#change
⬇️ An important study relying on both field surveys & long-term experiments ⬇️ Congrats to Kai Zhu & team
shorturl.at/3FsVm
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Rapid shifts in grassland communities driven by climate change - Nature Ecology & Evolution
Plant community responses to climate change tend to be lagged in forests, but could be faster in grasslands. Here, the authors integrate long-term experimental data with >1 million occurrence recor...
https://shorturl.at/3FsVm
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Lawren Sack
Nathan J.B. Kraft
9 months ago
Excited to see this paper from Mary Van Dyke out in press- she measures how rainfall manipulations alter the timing of the life cycles of California annual plants, and explore implications for species coexistence. Thanks to Sedgwick UCNRS Reserve for facilitating her research!
#AJB
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Lawren Sack
Annals of Botany
9 months ago
📣Now Free Access: The Agavoideae: an emergent model clade for CAM evolutionary biology Get the Paper:
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https://doi.org/10.1093/aob/mcad062
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Lawren Sack
Botanical Society of America
10 months ago
mvh: An R tool to assemble and organize virtual
#herbaria
from openly available specimen images New in
#AppsPlantSci
by
@tvasconcelos.bsky.social
&
@jboyko.bsky.social
bsapubs.onlinelibrary.wiley.com/doi/full/10....
@r-foundation.bsky.social
@gbif.org
#botany
#biodiversity
#iamabotanist
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Jen Cross
10 months ago
Here is a moment of peace for your timeline. Little River, Great Smoky Mountains National Park
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Mark A. Anthony
10 months ago
Interesting new paper on inference with observational data in ecology
onlinelibrary.wiley.com/doi/10.1111/...
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Causal Inference With Observational Data and Unobserved Confounding Variables
As ecology tackles progressively larger problems, we are moving beyond the scales at which randomised controlled experiments are feasible. Using observational data for causal inference raises the pro...
https://onlinelibrary.wiley.com/doi/10.1111/ele.70023
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Lawren Sack
Savage Lab
10 months ago
What limits rubisco function? Is it the chemical mechanism? Evolution? In this paper,
@prywes.bsky.social
et. al explore this question by assaying >99% of single amino acid mutants in Form II rubisco (1/7)
doi.org/10.1038/s415...
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Lawren Sack
Erin Reed
10 months ago
Ever wonder what snow in the swamp would look like? This is 5 miles into the Louisiana swamps in the Atchafalaya basin... it's unreal... having lived down there for the first 28 years of my life, we never saw anything like this. Smashed records. Curtesy of Garrett Roberts.
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Lawren Sack
Troy Magney
10 months ago
New Tansley review paper from Zoe Pierrat & friends in
@newphyt.bsky.social
linking proximal remote sensing with ecosystem fluxes! Synergies and best practices for hyperspectral reflectance, SIF, thermal, microwave and lidar 🌈🌲🗼🛰️🧪
nph.onlinelibrary.wiley.com/doi/10.1111/...
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Lawren Sack
Laura Dee
10 months ago
Very excited this paper is now out in Ecology Letters
onlinelibrary.wiley.com/doi/epdf/10....
#causalsky
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Lawren Sack
Proceedings of the National Academy of Sciences
10 months ago
Humans living 780,000 years ago in what is now Israel ate a variety of starch-rich plants and yellow waterlily rhizomes, indicating advanced cognitive abilities, according to a study of plant microremains found on stone food-processing tools. In PNAS:
www.pnas.org/doi/10.1073/...
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Lawren Sack
Arthur Gessler
10 months ago
From division to ‘divergence’: to understand wood growth across timescales, we need to (learn to) manipulate it
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From division to ‘divergence’: to understand wood growth across timescales, we need to (learn to) manipulate it
Wood formation is the Rosetta stone of tree physiology: a traceable, integrated record of physiological and morphological status. It also produces a large and persistent annual sink for terrestrial c...
https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.20390
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Lawren Sack
Owen Atkin
10 months ago
Last day in the USA. Spent well visiting
@lawrensack.bsky.social
. Super impressed that Lawren works in a building with ‘BOTANY’ in the title! Ok, so the dept is EEB…..but botany is clearly the heart and engine room! And at the risk of stirring possums, let’s MAKE BOTANY GREAT AGAIN!
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Lawren Sack
Dr. Crystal A. Kolden
10 months ago
Here's the reality about the
#LAFires
this week: this isn't the first time ANY of these places have burned. Not even close. In 2018, we mapped CA fire history to look at fire frequency across SoCal. Santa Monica Mtns area burns more than anywhere else -- up to once per decade in a given spot. 🧵
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Resolving the contrasting leaf hydraulic adaptation of C3 and C4 grasses - Alec Baird et al. - New Phytologist -
nph.onlinelibrary.wiley.com/doi/full/10....
@colinplants.bsky.social
@cscoffoni.bsky.social
@hcochard.bsky.social
@erikajedw.bsky.social
10 months ago
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Lawren Sack
John Dwyer
12 months ago
🔥 in Ecology Letters 🔥
#Traits
describing hydraulic strategies and deciduousness explain the occurrence trends of almost 300
#rainforest
#tree
species across a steep rainfall gradient in Australia.
#FunctionalTraits
dx.doi.org/10.1111/ele....
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A Functional Basis for the Assembly of Australian Subtropical Rainforest Tree Communities
We surveyed rainforest tree communities across the Australian subtropics (spanning 600 to 2500 mm rainfall year−1) and measured functional traits on 285 (91%) of all recorded species. Hydraulic strat....
http://dx.doi.org/10.1111/ele.70014
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Kristina Anderson-Teixeira
12 months ago
**FORESTGEO STAFF SCIENTIST POSITION!** We are hiring a Research Ecologist to focus on Central and South American Forest Dynamics, to be based at the Smithsonian Tropical Research Institute. Smithsonian staff scientist positions are excellent, as is the ForestGEO team! Come be our colleague!
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ForestGEO Staff Scientist - Research Ecologist, South & Central American Tropical Forests
The Forest Global Earth Observatory (ForestGEO) is a global network of forest research plots and scientists dedicated to the study of forest function and diversity.
https://forestgeo.si.edu/forestgeo-staff-scientist-research-ecologist-south-central-american-tropical-forests
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A Theoretical Framework to Quantify Ecosystem Pressure-Volume Relationships
onlinelibrary.wiley.com/doi/abs/10.1...
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A Theoretical Framework to Quantify Ecosystem Pressure‐Volume Relationships
The amount of water contained in, and available to, vegetation strongly constrains the functioning and total biomass of ecosystems. As such, there is a lot of interest in measuring, monitoring and mo...
https://onlinelibrary.wiley.com/doi/abs/10.1111/gcb.17567
12 months ago
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Sensitive Hydraulic and Stomatal Decline in Extreme Drought Tolerant Species of California Ceanothus
http://doi.org/10.1111/pce.15208
@ZailaaJ @cscoffoni5 @TomBuckleyLab @brodersen_lab @strueba_ @fletcher_leila @marvin_browne
about 1 year ago
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The Ecosystem as Super-organ/ism, Revisited: Scaling Hydraulics to Forests under Climate Change
https://academic.oup.com/icb/article-abstract/doi/10.1093/icb/icae073/7695291
over 1 year ago
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Pinpointing the causal influences of stomatal anatomy and behavior on minimum, operational, and maximum leaf surface conductance
https://academic.oup.com/plphys/article-abstract/doi/10.1093/plphys/kiae292/7679682
over 1 year ago
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Statement to Students and the Campus Community from Faculty within the Ecology and Evolutionary Biology Department, UCLA
https://docs.google.com/document/d/1o_gJI_zDyNlXQkliPDuc_zAsGV3UL_LJoJErAemnh-k/edit
@nathanjbkraft @ElsaOrdway @VanMSavage @s_m_aguillon @nanditagarud...
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Statement to Students and the Campus Community from Facul...
Statement to Students and the Campus Community We are me...
https://docs.google.com/document/d/1o_gJI_zDyNlXQkliPDuc_zAsGV3UL_LJoJErAemnh-k/edit
over 1 year ago
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Ingenious discoveries from a year of UC research: UCLA botanists figured out how to “ask” plants what they need to survive climate change
https://www.universityofcalifornia.edu/news/12-ingenious-discoveries-year-uc-research
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12 ingenious discoveries from a year of UC research
In 2023, every campus, lab and medical center came throug...
https://www.universityofcalifornia.edu/news/12-ingenious-discoveries-year-uc-research
almost 2 years ago
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Allometries of cell and tissue anatomy and photosynthetic rate across leaves of C3 and C4 grasses - Baird - Plant, Cell & Environment
https://onlinelibrary.wiley.com/doi/full/10.1111/pce.14741
about 2 years ago
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Plants have something to say about climate. A new study unlocks their 'language'
https://www.latimes.com/california/newsletter/2023-09-28/plants-have-something-to-say-about-climate-a-new-study-unlocks-their-language-essential-california
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Plants have something to say about climate. A new study u...
A first-of-its-kind study from UCLA presents a model to p...
https://www.latimes.com/california/newsletter/2023-09-28/plants-have-something-to-say-about-climate-a-new-study-unlocks-their-language-essential-california
about 2 years ago
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How to save plants from climate change? Just ask them
https://newsroom.ucla.edu/releases/plant-leaves-wood-conservation-clues-climate-change
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https://newsroom.ucla.edu/releases/plant-leaves-wood-conservation-clues-climate-change
about 2 years ago
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Scientists and startups are looking to boost the natural processes that remove carbon dioxide from the air
https://www.wsj.com/articles/carbon-capture-startups-tech-global-warming-3a597f92
via @WSJ
over 2 years ago
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Why haven't all the jacarandas bloomed yet? When will purple reign again in L.A.?
https://www.latimes.com/lifestyle/story/2023-05-23/when-will-jacarandas-bloom-in-los-angeles
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Why haven't all the jacarandas bloomed yet? When will pur...
The jacaranda trees look sparse in parts of Los Angeles C...
https://www.latimes.com/lifestyle/story/2023-05-23/when-will-jacarandas-bloom-in-los-angeles
over 2 years ago
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The 12th annual UC Davis Plant Sciences Symposium 2023 will focus on “Plants in the climate crisis”; with an outstanding line-up of speakers tackling the 21st century’s most significant global challenges.
https://www.plantsciences.ucdavis.edu/news/plant-sciences-symposium-2023
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Plant Sciences Symposium explores plants in the climate c...
Get the day's schedule Plant Sciences Symposium 2023 sche...
https://www.plantsciences.ucdavis.edu/news/plant-sciences-symposium-2023
over 2 years ago
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Happy New Year 2023!
almost 3 years ago
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Congratulations to the excellent @alecsbaird, recipient of the UCLA Life Sciences Excellence in Research Award!!
over 3 years ago
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Though 1883 is a great show, Captain Shea will live to regret showing oak tree leaves when teaching the pioneers to avoid poison oak
#HireABotanyConsultant
#RashDecision
@Tombstone_Coors @1883Official
almost 4 years ago
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