Martin Macek
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martinmacek.bsky.social
Martin Macek
@martinmacek.bsky.social
1.4K followers 220 following 29 posts
Plant ecologist at Czech Academy of Sciences / Inst of Botany / Dept of Geoecology
forests, microclimate, biogeography
Posts Replies Media Videos
Reposted by Martin Macek
natureportfolio.nature.com
A paper in Scientific Data presents a novel global natural forest map for 2020 at 10 m resolution. This map can support forest monitoring or conservation efforts that require a comprehensive baseline for monitoring deforestation and degradation. go.nature.com/4remVIQ ⚒️ 🧪
This is figure 1. The global extent of natural forests in 2020 (according to the model, and based on the probability threshold of 0.52) with zoom-in examples (from left to right: Amazon Basin in Brazil, deforestation frontier in Indonesia, and boreal forest in Western Canada).
November 20, 2025 at 8:46 PM
Reposted by Martin Macek
eliskakutakova.bsky.social
Check out our new paper about birch seedlings, traits, nutrient acquisition and warming in subarctics! 👀⚠️🌳 Just now coming out in Oikos :)
doi.org/10.1002/oik....
Many thanks to Maja Sundqvist and the whole amazing team 🤩
@stefhupperts.bsky.social
@michael-gundale.bsky.social
@aclassen.bsky.social
Whole‐seedling trait adjustments of mountain birch under contrasting environmental conditions
Warming temperatures can promote arctic tree seedling establishment and growth, but these effects depend on the environmental context and the seedlings' capacity to acquire limiting resources. Here, ....
doi.org
November 18, 2025 at 7:05 AM
martinmacek.bsky.social
Love to see the progress in implementation of shape-restricted smooths in my favourite package! Shape-restricted smooths are great for constructing models reflecting theoretical assumptions and hypothesis testing in ecology. #rstats
gsimpson.bsky.social Gavin Simpson @gsimpson.bsky.social · 11d
A new release of the mgcv #RStats 📦 is out on CRAN and Simon Wood (U Edinburgh) has added some significant new features despite the small bump in version number:

🌟 scasm() for estimating GAMs with shape constrained smooths. Can be used with any family & smoothness selection is via the EFS method
Model is: b3 <- scasm( y ~ s(x0, bs = "bs", k= k) + s(x1, bs = "sc", xt = "m+", k = k) + s(x2, bs = "bs", k = k) + s(x3, bs = "bs", k = k), family=poisson, bs=200 ) The second smooth `s(x1) is a shape constrained smooth with a positive monotonicity constraint (xt = "m+"). The `bs = 200` arguments uses 200 boostrap samples, which generates bootstrap distributions for each coefficient in the model. These bootstrap samples respect the shape constraints, while the usual +/- 2 SE credible intervals may not. The uncertainty in the partial effects is shown by two credible interval bands; a dark blue central band is a 68% Bayesian credible interval, while the lighter blue outer interval is a 95% Bayesian credible interval. The background of each panel is light grey with white grid lines, in a similar style to ggplot2's default theme.
November 12, 2025 at 12:10 PM
Reposted by Martin Macek
spacetimeeco.bsky.social
Atmospheric #VaporPressureDeficit structures #forest #bryophyte communities across #landscape

our new #microclimate research in @egubg.bsky.social #Biogeosciences journal

BIG congratulation to the very first paper from our #bryophyte lover Anna Růžičková!

doi.org/10.5194/bg-2...
Graphical abstract of the paper shoving spatial variability in atmospheric vapor pressure deficit driven by the interplay between temperature-driven patterns in saturated water vapor pressure and actual water vapor pressure across topographically diverse landscape of the National Park Bohemian Switzerland in the Czech Republic.
November 4, 2025 at 8:25 AM
Reposted by Martin Macek
remybeugnon.bsky.social
🎉 Registration is now open for MEB2026 – the 3rd Microclimate Ecology & Biogeography Conference!

📅 June 1–5, 2026
📍 Montpellier, France 🇫🇷

This edition highlights terrestrial and aquatic microclimates.

🔗 meb-network.com/meb-2026

#MEB2026 #Microclimate #Ecology #Biogeography #Conference
October 31, 2025 at 9:41 AM
Reposted by Martin Macek
iavs5.bsky.social
📢 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 22, 2025 at 6:28 AM
Reposted by Martin Macek
boudalab.bsky.social
First images from our #HydroScale Průhonice site show a cluster of beech roots growing at a depth of 1.2m!

Michal Man there, using the new device to #GoBelowground. We may need to come up with a new name for it--doesn't feel like a "mini" rhizotron.
Short, thick segments of light-coloured roots woven into a brown soil with dark cracks and macropores. Glare at image top and bottom from LED light. Technician carefully inserting a camera on a very long rail into a transparent tube in the ground in a beech forest.
October 10, 2025 at 9:31 PM
Reposted by Martin Macek
pszaboenviro.bsky.social
🚨JOB ALERT🚨
Come work with me in Brno in a new project on how Scots pine & forestry changed societies and environments in the 18th-19th centuries! 🌲🌳
👇Fully funded postdoc position 👇
www.ibot.cas.cz/en/vacancies...
Application deadline: 13.11.2025
Please distribute widely!
#envhist #histecol
October 14, 2025 at 2:07 PM
Reposted by Martin Macek
botanospol.bsky.social
Vybrané nahrávky přednášek, které pořádá ČBS ve spolupráci s Katedrou botaniky PřF UK, můžete nově najít na YouTube. Přehrát si zde můžete třeba seminář věnovaný letošní rostlině roku, starčku úzkolistému #rostlinaroku2025 www.youtube.com/playlist?lis...
Botanospol - YouTube
www.youtube.com
October 7, 2025 at 6:10 PM
Reposted by Martin Macek
biogeography.bsky.social
Dr. Brett Scheffers will be giving our October Funk lecture! If you are interested in how micro-scale variation in climate and habitat interact to shape biogeographic patterns, you won't want to miss this talk! Learn more here: www.biogeography.org/news/news/oc...
October 6, 2025 at 7:48 PM
Reposted by Martin Macek
cts.cuni.cz
📖 Book release! Hinterland. Archeologie severočeských pískovcových krajin. Co-edited by Petr Pokorný, contributions from Jindra Prach and Jan Hošek (CTS).

An illustrated journey (100+ images) through 20,000 years of sandstone landscapes, from the Ice Age to today.

🔗 www.kosmas.cz/knihy/559021...
September 25, 2025 at 11:20 AM
Reposted by Martin Macek
sciencecharles.bsky.social
🌿 The Botanical Garden of Charles University’s Faculty of Science turns 250! Founded in 1775, it is one of Central Europe’s oldest university gardens.

Join us for a special anniversary program 15–21 Sept 2025. 🎉

@unikarlova.cuni.cz @botanickazahradauk.bsky.social
September 16, 2025 at 8:22 AM
Reposted by Martin Macek
thomasp85.com
I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN.

It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package.

Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats
ggplot2 4.0.0
A new major version of ggplot2 has been released on CRAN. Find out what is new here.
www.tidyverse.org
September 11, 2025 at 11:20 AM
Reposted by Martin Macek
peterpetrik94.bsky.social
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
Reposted by Martin Macek
preslia.cz
Spatially uneven sampling of species occurrences can mislead biodiversity research. A new study of Czech flora by Klímová et al. reveals how different methods mitigate the distortions in the patterns of species richness.
preslia.cz/doi/preslia.2025.541.html
September 5, 2025 at 5:27 AM
Reposted by Martin Macek
majarzyna.bsky.social
Abstract submission for @biogeography.bsky.social biannual conference in Aarhus has been extended till Sep 8. Join us for 5 days of all things biogeography! conferences.au.dk/tibs-aarhus-...
The International Biogeography Society Conference Jan 7-9, 2026 Aarhus
The International Biogeography Society and Aarhus University are excited to welcome you to the 12th Biannual Conference in Aarhus, the city of Smiles.
conferences.au.dk
September 1, 2025 at 2:31 PM
Reposted by Martin Macek
journalofecology.bsky.social
❄️🌳Early snowmelt around the base of deciduous trees ("thaw circles") is likely not the proximate cause of improved plant performance and greater local abundance of the spring-flowering herb, Dutchman’s breeches.🌿 @nathankiel.bsky.social 👉 buff.ly/yUTaDe1
August 19, 2025 at 5:10 PM
Reposted by Martin Macek
iavs5.bsky.social
🌟 The morning culminated in the Honorary Membership Award Talk by Milan Chytrý (Masaryk University, Czech Republic) —an inspiring start to the week!
Let the symposium begin!
#IAVS2025
Susan Wiser introduces to the Honorary Membership Award to Milan Chytrý Honorary Membership Award Talk by Milan Chytrý
July 30, 2025 at 6:39 PM
Reposted by Martin Macek
jonasgaigr.bsky.social
První snímky z letos vyslané družice Biomass. Jako první satelit „vidí skrz stromy“ – dokážeme tak díky němu na dálku měřit množství dřevní hmoty a kvantifikovat množství uhlíku, který je v ní uložen.
esa.int European Space Agency @esa.int · Jun 23
🆕 The first stunning images from our groundbreaking #Biomass satellite mission have been released – they mark a major leap forward in our ability to understand how Earth’s forests are changing and exactly how they contribute to the global carbon cycle 🌳🌍

www.esa.int/Applications...
This image features part of Bolivia. This vibrant image was created using the radar instrument’s different polarisation channels, with each colour revealing distinct characteristics of the landscape. For instance, green hues mainly represent rainforest, red hues forested floodplains and wetlands, and blue–purple is indicative of grasslands, while black areas are rivers and lakes. The image spans approximately 90 km along the Biomass satellite's flight path (length) and 60 km across in width, with north oriented to the right.
June 29, 2025 at 7:30 PM
Reposted by Martin Macek
akademievedcr.bsky.social
🤔 Jak žili naši pravěcí předkové v místě, kde nyní vzniká jedna z nejočekávanějších dopravních staveb, v okolí Pražského okruhu?

💭 A jaká svědectví po sobě zanechaly další kultury, které po nich oblast osídlily?
June 12, 2025 at 1:14 PM
martinmacek.bsky.social
Jitka Klimešová o naší studii o zelenání a hnědnutí Himálaje (a o tom, jak nám pomáhají technologie) 👇
June 9, 2025 at 6:42 PM
Reposted by Martin Macek
ibotcz.bsky.social
Ještě dnes můžete navštívit náš stánek na Veletrhu vědy
@akademievedcr.bsky.social . Přijďte zjistit více o fascinujícím světě rostlin a hub 💚
June 7, 2025 at 6:19 AM
Reposted by Martin Macek
ekolist.bsky.social
Jiří Kopáček a Radek Bače: Les po kůrovci z pohledu dlouhodobých měření na Šumavě - Ekolist.cz
Již dávno jsme pochopili, že nemá valný smysl diskutovat s lidmi, kteří za nejvyšší důkaz pro existenci nějakého jevu považují svou nezlomnou víru v něj. Zkuste schválně někomu vyvrátit jeho víru v ch...
ekolist.cz
May 28, 2025 at 5:40 AM
Reposted by Martin Macek
natplants.nature.com
Link to this nice paper @pnas.org :

www.pnas.org/doi/10.1073/...
plantmorpho.bsky.social Laboratory of Plant Morphodynamics @plantmorpho.bsky.social · May 23
The fantastic work of @kampova.bsky.social is finally out in PNAS: weather sensing and programmed cell death in anther dehiscence and opening. Cool science and awesome microscopy! @svosolsobe.bsky.social @handle.invalid @moritznowack.bsky.social
May 23, 2025 at 9:35 PM
martinmacek.bsky.social
Greening in the arid Western #Himalaya isn't just about warming 🌡️. Using two decades of 🛰️ #Landsat NDVI data, we found precipitation 🌧️🌨️ and CO2 fertilization, not temperature, drives spectral greening across elevations in #Ladakh.
Ladakh - our study area on elevation-dependent greening in the cold arid region https://iopscience.iop.org/article/10.1088/1748-9326/adc9c7 Seasonal anomalies in precipitation and snow-cover duration explain more variability in NDVI than temperature anomalies. Directional multi-decadal greening can be attributed to fertilising effects of rising CO2 concentrations, increasing photosynthesis efficiency.
May 13, 2025 at 12:33 PM