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Posts by Luciana Alves

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Ecological drivers and phylogenetic patterns of leaf minimum conductance variability in vascular plants Stomatal closure prevents significant water losses during drought events. Yet, leaves are not perfectly hermetic and dehydration ensues through residual water losses, known as minimum conductance (g...

Freshly published paper led by @santiagotrueba.bsky.social on leaf water losses across vascular plants 🌳🔬🧪

The 50-fold variation in gmin across ecological groups was weakly related to phylogeny with evidence for convergent evolution in response to climate 🌡️💦

@newphyt.bsky.social

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this is a-m-a-z-i-n-g !!!

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A black-and-white studio portrait photograph of Emma Lucy Braun, the pioneering American botanist and plant ecologist widely regarded as one of the most influential scientists in the study of eastern North American forests. Shown from the shoulders up against a soft, neutral gradient background, Braun appears in her later years with a calm, intelligent gaze directed straight at the viewer. Her white hair is neatly styled and swept back from her face, and she wears delicate round wire-rimmed glasses. A gentle, knowing half-smile softens her expression, conveying quiet authority, warmth, and scholarly poise. She is dressed in a light-colored, pleated blouse with a gathered neckline and a prominent dark floral brooch pinned at the center of her chest; the visible sleeve features subtle decorative patterning. The tight, centered composition focuses entirely on her face and upper torso, creating an intimate and dignified mood that emphasizes intellect and dignity over ornamentation.

A black-and-white studio portrait photograph of Emma Lucy Braun, the pioneering American botanist and plant ecologist widely regarded as one of the most influential scientists in the study of eastern North American forests. Shown from the shoulders up against a soft, neutral gradient background, Braun appears in her later years with a calm, intelligent gaze directed straight at the viewer. Her white hair is neatly styled and swept back from her face, and she wears delicate round wire-rimmed glasses. A gentle, knowing half-smile softens her expression, conveying quiet authority, warmth, and scholarly poise. She is dressed in a light-colored, pleated blouse with a gathered neckline and a prominent dark floral brooch pinned at the center of her chest; the visible sleeve features subtle decorative patterning. The tight, centered composition focuses entirely on her face and upper torso, creating an intimate and dignified mood that emphasizes intellect and dignity over ornamentation.

Botanist/plant ecologist E. Lucy Braun is one of the most influential ecologists in North American history.

+ First woman President, Ecological Society of America, 1950
+ Helped establish plant ecology as a rigorous academic discipline

She was born #OTD in 1889. #WomenInSTEM #conservation #ecosky

2 days ago 545 151 1 2

AI needs solid botanical data more than ever www.nature.com/articles/d41...

6 days ago 0 0 0 0
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Position of interest for plant evolutionary biologists: two assistant professorships are now open in the System Earth Science (SES) department at Maastricht University!

Interested? See the details here, or visit the QR code: vacancies.maastrichtuniversity.nl/job/Venlo-As...

1 week ago 9 15 0 0

Qualified scientists working on climate solutions: Come work with us! Details in the link below ⬇️

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💯

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"Houston, Integrity. Splashdown." 🥰

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NASA's Artemis II Live Mission Coverage (Official Broadcast) YouTube video by NASA

#artemis
www.youtube.com/live/m3kR2KK...

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“The purpose of humanity is joy.” (Artemis II mission’s astronaut Jeremy Hansen)

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The FY 2027 NASA budget request hides its science cuts by omitting mission names instead of explicitly zeroing them out.

We did the work and found 54 missions cancelled in this proposal.

This is another extinction-level event for NASA science.

Full list: planetary.org/save-nasa-science

1 week ago 290 214 9 30
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Opinion | NASA Flew by the Moon, but Behind the Scenes, Its Science Is a Chaotic Mess

Former NASA climate scientist, now Senior Scientist at Project Drawdown, Dr. Kate Marvel, has a fantastic piece in the New York Times today.

This is a must-read if you care about science, the planet, and the future.

www.nytimes.com/2026/04/08/o...

1 week ago 363 136 10 10

“A whole civilization will die tonight, never to be brought back again.” -Trump
Article III
The following acts shall be punishable:
(a) Genocide;
(b) Conspiracy to commit genocide;
(c) Direct and public incitement to commit genocide;
(d) Attempt to commit genocide;
(e) Complicity in genocide.

2 weeks ago 5531 2234 156 136

“Copy, Moon joy.” (Artemis II commander Reid Wiseman)

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😮😮😮

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NSF LTER program “archived”.

LTER=“Long Term Ecological Research”.

This program has been incredibly successful, incredibly frugal for what they accomplish, and…of course…targeted by evil know-nothings.

My heart is breaking.

2 weeks ago 385 189 18 61
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#Artemis II - Yesterday the Orion spacecraft captured an unforgettable photo of Earth

The picture calls to mind another iconic NASA photo, Taken by Apollo 8 astronaut Bill Anders on Dec. 24, 1968, the famous "Earthrise" photo depicts the Earth rising above the ghostly lunar horizon. 🚀🌕

2 weeks ago 350 110 10 14
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BIEN: A biodiversity informatics ecosystem advancing open and reproducible workflows for plant observation, plot and trait data The rapid expansion of biodiversity data presents new opportunities to understand and forecast biosphere dynamics. However, disparate and dispersed data, taxonomic and geographic inconsistencies, ...

New BIEN article out! This one digs in to the details of the BIEN #plant database, but importantly, also announces that BIEN is now #CC-BY (see the SI for details on that)!

doi.org/10.1111/2041...

4 weeks ago 9 3 2 0

👏👏👏

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After 3 weeks of grazing in the Sepulveda Basin, this beloved herd of goats is headed to their next pasture, Corbin Canyon Park, to continue their wildfire prevention efforts. Keep an eye out for these busy workers in their new location!

1 month ago 49 19 2 1
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A federal judge blocked parts of RFK Jr.'s push to reshape US vaccine policy, including efforts to reduce the number of shots recommended for children https://cnn.it/4rwhW4X

1 month ago 300 110 8 13
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New virtual issue in AJB 🌿All Functional Trait Handbooks, from the landmark Cornelissen et al. (2003) to the latest on reproductive traits, are now collected in one place.

20+ years of protocols for measuring plant traits across species, ecosystems & continents. All free to read.

🔗 buff.ly/zXlFjQx

1 month ago 31 20 0 2
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📣 Call for Abstracts!

The AGU Biogeosciences Early Career Committee invites early career researchers working on terrestrial systems to submit abstracts for our Spring Seminar Series 🌍

📆 Deadline: April 1

🔗 Call Info: docs.google.com/document/d/1...
🔗 Submission: docs.google.com/forms/d/e/1F...

1 month ago 1 2 1 0
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Trump Administration Readies Plans to Dismantle Renowned Science Lab

Russell Vought is breaking apart the National Center for Atmospheric Research, which has led advances in whether and climate science. Some of its components will transfer to private companies, part of larger efforts to privatize science.

www.nytimes.com/2026/03/13/c...

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excellent!

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A systems modelling approach to predict biological responses to extreme heat Anthropogenic climate change is leading to more frequent and extreme heat waves. These large-scale events are radically reshaping interactions among organisms—impacting biodiversity, community composition, and ecosystem services crucial to natural systems and food security. Predicting heat wave impacts on interacting species requires an understanding of the processes driving differential exposure and sensitivity of organisms to extreme heat events in a life cycle context. To achieve this predictive capacity, we need to integrate models across scales while capturing species-specific responses at the individual level. We review and demonstrate how existing models in disparate fields can be linked to achieve an increased understanding of how individuals and communities will respond to extreme heat, now and into the future.

Online now: A systems modelling approach to predict biological responses to extreme heat

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😮

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Ecuador’s new ecological corridor connects Andes and Amazon ecosystems Ecuador has announced the creation of a new biological corridor designed to connect the eastern ranges of the Andes with the Amazon Rainforest, part of a larger initiative to strengthen ecological…

A new 2,159-sq-km corridor in Ecuador now links high-elevation Andes ecosystems with the lowland Amazon. This "altitudinal connectivity" between Llanganates National Park and Yasuní Reserve is vital for species migrating in response to climate change and habitat loss.

By Maxwell Radwin.

1 month ago 59 26 0 2
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Some exciting news to share: very soon, NOAA Research will be hiring new federal employees into science positions across the agency! A couple of notes:

1) They will only be open on USAJobs for seven days.
2) Multiple positions at different sites may be in one posting.

(1/2)

1 month ago 68 36 3 1