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victoru2.bsky.social
@victoru2.bsky.social
120 followers 1.9K following 0 posts
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Reposted
infobeautiful.bsky.social
Charting human migration over deep time

(via outofedenwalk.nationalgeographic.org/media/2013-0...)
A map titled "A WALK THROUGH TIME" showing human migration patterns from Africa across the globe over 200,000 years. The route is color-coded in rainbow bands from red (oldest, 200-60 thousand years ago) through yellow, green, blue, to pink (most recent, 15-10 thousand years ago). A white line traces the 21,000-mile walking route from East Africa ("Start") to South America ("Finish"). The map uses Fuller projection to straighten the circumglobal route.
November 17, 2025 at 3:55 PM
Reposted
arthurobuntspecht.bsky.social
New paper out! 🌲 We explore hyperspectral indicators of vegetation vitality across scales—from individual trees to entire forests using drone & aircraft data. Insights into tree health, water availability & structure.

www.sciencedirect.com/science/arti...
Hyperspectral indicators of vegetation vitality across scales: From trees to forests
Remotely sensed vegetation indices (VIs) are used as indicators of vegetation vitality and warning signals that indicate stress responses at the leaf …
www.sciencedirect.com
November 17, 2025 at 9:55 AM
Reposted
opengraph.tools
Just like scary math symbols can be simple for-loops, complex web scraping can be a simple API call. We abstract away the complexity of proxies and rendering so you can get rich link previews with one request.

opengraph.tools

#meme #math #code #programming #api
A tweet explaining that large math symbols like Summation (Sigma) and Product (Pi) are just for-loops. It shows the mathematical notation next to the equivalent programming code for both concepts.
October 27, 2025 at 3:05 PM
Reposted
wsl-dme.bsky.social
🚁🌳 We are collecting #biome data in #Ecuador using three types of #drones:

1️⃣ #LiDAR – to analyze vertical biomass distribution
2️⃣ Multispectral – to assess canopy leaf area
3️⃣ Photo – to capture leaf imagery
November 11, 2025 at 12:02 AM
Reposted
fabrovillalobos.bsky.social
Very happy to finally see this out in @pnas.org. Great work (masterfully) led by my dear friend @gabrielmoulatlet.bsky.social on a classic question on range sizes, climatic niches and dominance for plants at the global scale!

Thanks for the collab, Gabriel!
gabrielmoulatlet.bsky.social Gabriel M. Moulatlet @gabrielmoulatlet.bsky.social · 5d
in "General laws of biodiversity: Climatic niches predict plant range size and ecological dominance globally", we provide key insights into species’ vulnerability to environmental change and the processes that structure biodiversity at global scales.

www.pnas.org/doi/10.1073/...
General laws of biodiversity: Climatic niches predict plant range size and ecological dominance globally | PNAS
A longstanding question in ecology asks whether or not species that achieve large geographic ranges also have large climatic niche breadths. Using ...
www.pnas.org
November 12, 2025 at 6:21 PM
Reposted
jefferybcannon.bsky.social
I'm reposting my tutorials for learning #LiDAR in #R as I migrate to BlueSky! Here is Part 7of my 7-part series to help you get started! Module 7 puts everything together to learn parallel processing for large-scale analysis! t.co/VldnROjXm2
February 10, 2025 at 4:49 PM
Reposted
jameststroud.bsky.social
Interested in measuring trees and branches from Lidar data? Don't want to use Matlab? (who does).

Take a look at our new Python package for reconstructing trees from point cloud data using quantitative structure models (QSM's).

Fun with @jefferybcannon.bsky.social!

ecoevorxiv.org/repository/v...
September 17, 2025 at 12:51 PM
Reposted
jefferybcannon.bsky.social
Excited to share our new Fire Ecology study! 🌲🔥 Terrestrial lidar can rapidly and accurately measure crown scorch 20x faster than traditional methods. Our R package, CrownScorchTLS, helps make this method accessible for large-scale forest monitoring.
doi.org/10.1186/s424...
November 14, 2025 at 2:11 AM
Reposted
jefferybcannon.bsky.social
Ready to learn how to use LiDAR for research in #forestry and natural resources using #R? This week I am sharing our 7-part series on Bluesky to help you get started! Share with anyone you know who wants to get started. Part 1 covers acquiring, & viewing LiDAR data! bit.ly/lidR-module1
January 6, 2025 at 3:33 PM
Reposted
hydrohammond.bsky.social
Refinding joy in exploring streamflow data 😍 just looking at the stories gages tell about rivers.

Here’s the Allagash River (ME), 1980–2020. Each line: a year of daily flow (Jan–Dec). Colors show each day compared to normal: green ≈ normal, blue = high, red = low. 🌊💧

#Hydrology #DataViz #sciArt
November 12, 2025 at 6:54 PM
Reposted
esaclimate.bsky.social
What's happening to our northern forests? 🌳 @calbergel.bsky.social explains how satellite data revealed unexpected changes in forest carbon storage and what this means for our climate. Check it out! 👇 #COP30
November 12, 2025 at 4:41 PM
Reposted
hansonmark.bsky.social
We wrote the Strain on scientific publishing to highlight the problems of time & trust. With a fantastic group of co-authors, we present The Drain of Scientific Publishing:

a 🧵 1/n

Drain: arxiv.org/abs/2511.04820
Strain: direct.mit.edu/qss/article/...
Oligopoly: direct.mit.edu/qss/article/...
A table showing profit margins of major publishers. A snippet of text related to this table is below. 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. A figure detailing the drain on researcher time. 1. The four-fold drain 1.2 Time The number of papers published each year is growing faster than the scientific workforce, with the number of papers per researcher almost doubling between 1996 and 2022 (Figure 1A). This reflects the fact that publishers’ commercial desire to publish (sell) more material has aligned well with the competitive prestige culture in which publications help secure jobs, grants, promotions, and awards. To the extent that this growth is driven by a pressure for profit, rather than scholarly imperatives, it distorts the way researchers spend their time. The publishing system depends on unpaid reviewer labour, estimated to be over 130 million unpaid hours annually in 2020 alone (9). Researchers have complained about the demands of peer-review for decades, but the scale of the problem is now worse, with editors reporting widespread difficulties recruiting reviewers. The growth in publications involves not only the authors’ time, but that of academic editors and reviewers who are dealing with so many review demands. Even more seriously, the imperative to produce ever more articles reshapes the nature of scientific inquiry. Evidence across multiple fields shows that more papers result in ‘ossification’, not new ideas (10). It may seem paradoxical that more papers can slow progress until one considers how it affects researchers’ time. While rewards remain tied to volume, prestige, and impact of publications, researchers will be nudged away from riskier, local, interdisciplinary, and long-term work. The result is a treadmill of constant activity with limited progress whereas core scholarly practices – such as reading, reflecting and engaging with others’ contributions – is de-prioritized. What looks like productivity often masks intellectual exhaustion built on a demoralizing, narrowing scientific vision. A table of profit margins across industries. The section of text related to this table is below: 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. The costs of inaction are plain: wasted public funds, lost researcher time, compromised scientific integrity and eroded public trust. Today, the system rewards commercial publishers first, and science second. Without bold action from the funders we risk continuing to pour resources into a system that prioritizes profit over the advancement of scientific knowledge.
November 11, 2025 at 11:52 AM
Reposted
nrennie.bsky.social
For the "accessibility" prompt on day 7 of the #30DayMapChallenge, I decided to investigate how accessible the default #ggplot2 colours are to people with different types of colour vision deficiency (and for different numbers of colours used). 🎨

#RStats #DataViz
A 5x5 grid of maps of France. Each row contains areas shaded with a different number of colours, and each column shows how it looks with different types of colour vision deficiency. None are accessible, except when using only two colours.
November 7, 2025 at 5:39 PM
Reposted
jsrieder.bsky.social
Happy to see my second PhD paper published in Forest Ecology and Management 🎉
#lidar #Europeanbeech #forestry #treemortality
check it out: www.sciencedirect.com/science/arti...
Tree size, neighbourhood composition and structure affect individual tree vitality of European beech following extreme drought
The severe drought of 2018/19 caused widespread early discoloration, defoliation and tree mortality in European beech (Fagus sylvatica L.), although l…
www.sciencedirect.com
November 6, 2025 at 1:44 PM
Reposted
jumpingrivers.com
In our latest blog post we compare the syntax of two Python libraries, Pandas and Polars for standard data-manipulation tasks.

#python #polars #pandas
Polars and Pandas - Working with the Data-Frame
In our latest blog post we compare the Pandas and Polars syntax for standard data-manipulation tasks.
www.jumpingrivers.com
November 6, 2025 at 2:12 PM
Reposted
forestecosyst.bsky.social
Tree growth in Mexico's western and eastern regions responds differently to climate factors, with western species showing stronger reactions to hydroclimate and atmospheric patterns. This research helps predict future changes in forest growth and composition.👇
www.sciencedirect.com/science/arti...
November 5, 2025 at 3:32 AM
Reposted
ecosense-sfb-1537.bsky.social
New #ECOSENSE paper out! doi.org/10.1002/eco....

Congrats to Stefanie Dumberger and @simonhaber.bsky.social for their first first-author respectively senior-author paper 👏
Check out their research on species-specific drought tolerance linked to the xylem profile 🧪🌲🌡️

#ClimateChange #Forest #DFG
Dynamic Shifts in Radial Sap Flow of Two Temperate Tree Species in Response to the Dry Summer 2022
Species-specific regulation of water fluxes and storage in the xylem are important drivers of drought tolerance. However, differences may occur along the radial profile of the xylem, potentially modi...
doi.org
July 7, 2025 at 2:26 PM
Reposted
chriswernerlab.bsky.social
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
August 19, 2025 at 8:39 AM
Reposted
envmet.bsky.social
In our ECOSENSE forest we are monitoring ecosystem processes and stresses in real-time using distributed sensor networks: Our new @egu.eu preprint discusses the implementation of this major technical infrastructure and its data management @ecosense-sfb-1537.bsky.social - doi.org/10.5194/egus...
October 24, 2025 at 9:18 AM
Reposted
newphyt.bsky.social
Improving the representation of plant water stress and water use in Earth System Models

Dukes et al. @dukesjeff.bsky.social @changliao.bsky.social @richphillipslab.bsky.social @scottmcadam.bsky.social

nph.onlinelibrary.wiley.com/doi/10.1111/...
Measurement-model-remote sensing framework to improve and scale predictions of ecosystem response to climate change across landscapes.
November 5, 2025 at 3:35 PM
Reposted
michaelraissig.bsky.social
🌿🌱 We’re hiring a tenure-track Assistant Professor (potentially open rank) at the Institute of Plant Sciences
@unibe.ch in Plant Population Ecology 🌻🌳

Be our colleague and join us in beautiful Bern, Switzerland

Apply by Jan 23 2026 👉 ohws.prospective.ch/public/v1/jo...
October 30, 2025 at 3:55 PM
Reposted
matdisney.bsky.social
New paper by Wout Cherlet & @qforestlab.bsky.social team led by @kimcalders.bsky.social, comparing tree extraction methods from TLS data. TL;DR it's hard to automate, ecosystem dependent & parametric approaches currently outperform DL www.sciencedirect.com/science/arti...
Benchmarking tree instance segmentation of terrestrial laser scanning point clouds
Terrestrial laser scanning (TLS) has revolutionized forest measurement techniques by providing detailed three-dimensional (3D) point cloud data that c…
www.sciencedirect.com
November 4, 2025 at 2:44 PM
Reposted
martin-nunez.bsky.social
a century of glaciers melting 🧪🌐
November 3, 2025 at 5:21 PM
Reposted
nanitundra.bsky.social
Thrilled to be one of the plenary speakers for the @iavs5.bsky.social 68th #IAVS Symposium (Gijón, Spain, 22-26 June 2026) along legends like @jcsvenning.bsky.social @gmendietal.bsky.social @ftmaestre.bsky.social et al!

Join us to discuss plants across taxonomic, spatial and temporal scales! 🌿
iavs5.bsky.social The International Association for Vegetation Science @iavs5.bsky.social · 26d
📢 68th #IAVS Symposium: Understanding #Ecosystems through #Vegetation | 22-26 June 2026, Spain

Join us to explore how vegetation shapes #biodiversity and ecosystems worldwide!

📅 Call for Special Session proposals is now open: 15 Oct – 15 Nov 2025
👉 Details: gijon2026.iavs-meetings.org
#IAVS2026
IAVS Symposium 2026, Thematic 'Understanding Ecosystems Through Vegetation'.
October 31, 2025 at 4:13 PM