John D. Parker
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johndparker.bsky.social
John D. Parker
@johndparker.bsky.social
510 followers 140 following 17 posts

scientist working on plant community response to diversity, global change, herbivory, and biological invasions. Not good at social media.

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Biology 29%
Agriculture 21%
Posts Replies Media Videos

Reposted by Julia Koricheva, John Parker, Emilio Vilanova

markuseichhorn.bsky.social
Markus Eichhorn @markuseichhorn.bsky.social · 17d
More diverse forests have greater productivity, but do they use more water? A new meta-analysis by Shovon et al. in @journalofecology.bsky.social suggests not. 🌐🌏🧪 besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Figure 4 from Shovon et al. (2025). Influence of diversity on transpiration as described by Hedges' g effect size as a function of species richness and water limitations at the (a–c) community level and (b–d) species level. Upper panels assess the influence of drought stress by comparing drought versus no drought conditions, defined through self-reported information. Lower panels assess the influence of regional aridity by comparing humid climates (aridity index >0.65) and dry climates (aridity index ≤0.65). Circles represent observed effect sizes; lines represent posterior mean trends, and shaded areas represent the 95% credible intervals.

Reposted by John Parker

juliakoricheva.bsky.social
Julia Koricheva @juliakoricheva.bsky.social · 18d
Volatile organic compounds diversity mediates tree diversity–insect herbivory relationships @oikosjournal.bsky.social #TreeDivNet nsojournals.onlinelibrary.wiley.com/doi/10.1002/...

Reposted by Pieter A. Zuidema, John Parker, Joan Dudney

journalofecology.bsky.social
Journal of Ecology @journalofecology.bsky.social · 18d
Published!📖

Forest structural and functional diversity can attenuate forest productivity losses after harvesting and fires. In undisturbed forests, dominance boosts productivity via selection effects, but not after harvesting🌳🌲🌍

Read here:https://buff.ly/Gw5Hq6X

Reposted by John Parker

natrevbiodiv.nature.com
Nature Reviews Biodiversity @natrevbiodiv.nature.com · Nov 24
ICYMI: New online! Mangrove biodiversity and ecosystem services
Mangrove biodiversity and ecosystem services
Nature Reviews Biodiversity, Published online: 17 November 2025; doi:10.1038/s44358-025-00103-3Mangroves are valued for their diverse range of ecosystem services, but the role of biodiversity in supporting these services is not thoroughly understood. This Review examines the relationships between biodiversity, ecosystem processes and ecosystems services, and examines how future research could address knowledge gaps to guide effective, equitable mangrove conservation.
bit.ly

Reposted by John Parker

esajournals.bsky.social
ESA Journals @esajournals.bsky.social · Nov 19
🆕 in "Frontiers in Ecology and the Environment": Forest recovery isn't just about tree cover—nutrition matters! How managing chemical landscapes could boost wildlife conservation

📄Managing nutritional landscapes as the next frontier in forest ecology and conservation
doi.org/10.1002/fee....
A male moose (Alces alces) in a Swedish forest with abundant broadleaf browse (a), and a monoculture ofNorway spruce (Picea abies) (b)

Reposted by John Parker

natrevbiodiv.nature.com
Nature Reviews Biodiversity @natrevbiodiv.nature.com · Nov 17
New online! Mangrove biodiversity and ecosystem services
Mangrove biodiversity and ecosystem services
Nature Reviews Biodiversity, Published online: 17 November 2025; doi:10.1038/s44358-025-00103-3Mangroves are valued for their diverse range of ecosystem services, but the role of biodiversity in supporting these services is not thoroughly understood. This Review examines the relationships between biodiversity, ecosystem processes and ecosystems services, and examines how future research could address knowledge gaps to guide effective, equitable mangrove conservation.
bit.ly

Reposted by Johannes Quaas, John Parker, Karl Andraczek , and 1 more

idiv-research.bsky.social
iDiv Biodiversity Research @idiv-research.bsky.social · Nov 13
New study led by @lsachsenmaier.bsky.social @agwirthweigelt.bsky.social shows: forest stands made up of tree species with different water-use strategies (not just many species) grow better in drought years. #iDivResearch #Biodiversity
www.idiv.de/diverse-fore...
Diverse forests are more resistant to climate change
www.idiv.de

Reposted by John Parker, Juan Cole

nature.com
Nature @nature.com · Nov 1
Ozempic, MRI machines and flat screen televisions all emerged out of fundamental research decades earlier — the very types of study being slashed by the US government

go.nature.com/47hn0n5
7 basic science discoveries that changed the world
Ozempic, MRI machines and flat screen televisions all emerged out of fundamental research decades earlier — the very types of study being slashed by the US government.
go.nature.com

Reposted by Teja Tscharntke, Ingolf Kühn, Simon L. Lewis , and 6 more

juliakoricheva.bsky.social
Julia Koricheva @juliakoricheva.bsky.social · Oct 21
PhD applications are now open @treesdla.bsky.social for 2026 intake. Have a look at a project on effects of forest diversity on floral reward production for pollinators that we advertise with @philstevenson.bsky.social. Do apply/get in touch if you are interested! www.trees-dla.ac.uk/projects/eff...

Reposted by Meelis Pärtel, Akira Mori, Ben Bond‐Lamberty , and 4 more

droughtnet.bsky.social
DroughtNet @droughtnet.bsky.social · Oct 16
The latest DroughtNet paper is out in Science today! Using coordinated experiments across six continents and 74 sites, the International Drought Experiment found differences between the effects of extreme droughts and more typical droughts... (1/3) www.science.org/doi/10.1126/...
Drought intensity and duration interact to magnify losses in primary productivity
As droughts become longer and more intense, impacts on terrestrial primary productivity are expected to increase progressively. Yet, some ecosystems appear to acclimate to multiyear drought, with cons...
www.science.org

Reposted by Julia Koricheva, John Parker, Haben Blondeel

mixedforests.bsky.social
Florian Schnabel @mixedforests.bsky.social · Sep 29
🗞️New study in @globalchangebio.bsky.social 🗞️

🌳Diversity in resource use strategies promotes productivity across a global network of tree #diversity experiments?🌲

Read our new study led by Joel Jensen together with #TreeDivNet here:

onlinelibrary.wiley.com/doi/10.1111/...
Diversity in Resource Use Strategies Promotes Productivity in Young Planted Tree Species Mixtures
By analyzing data from over 83,000 trees in 21 experiments across five continents, we found that forests with more species were more productive and had more stable growth. Productivity was driven mai....
onlinelibrary.wiley.com

Reposted by John Parker, United Nations

ipbes.net
IPBES @ipbes.net · Sep 27
Forests play a vital role in food, livelihoods & biodiversity and hold an intrinsic value of their own!

Let’s protect and restore them for people & planet! 🌍🌱

📹 Watch this video by @fao.org

Reposted by John Parker, Joan Dudney

juliakoricheva.bsky.social
Julia Koricheva @juliakoricheva.bsky.social · Sep 10
Our new #TreeDivNet paper led by Hernán Serrano-León is out in @globalchangebio.bsky.social! Using data from 9 forest diversity experiments across Europe, we showed that tree diversity effects on tree growth responses strengthened during consecutive drought years dx.doi.org/10.1111/gcb....

Reposted by Marten Winter, John Parker

uni-konstanz.de
Universität Konstanz @uni-konstanz.de · Sep 8
Globally spreading naturalized alien plant species are often those that are also expanding within their native regions. This is shown by a cross-national study led by the #UniKonstanz:https://t1p.de/b67xa.de/b67xa" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">https://t1p.de/b67xa

Reposted by John Parker

martin-nunez.bsky.social
Martin A. Nuñez @martin-nunez.bsky.social · Aug 28
Many people ask how they can support me as a new author

The best way right now: buy the book on Amazon and PLEASE leave a review

Reviews help the algorithm make the book visible to more early-career researchers
To reach ECRs, I need your reviews🙂
figure saying for the results section of a paper, text is 1 star. tables are two starts and figures are the best, 5 starts

Reposted by Julie L. Lockwood, John Parker, Stephen D. Murphy

katharinehayhoe.com
Katharine Hayhoe @katharinehayhoe.com · Aug 19
Tree-planting is always good, right? Well, it turns out that a tree planted in the wrong place can actually have a negative impact on the climate. That’s why a research team with scientists from The Nature Conservancy developed maps to help with strategic reforestation for maximum benefit!
New maps help decision-makers factor albedo into tree-planting plans
Albedo can cause large reductions to the climate benefit of tree planting – but new science helps identify locations with greatest climate-cooling potential
www.nature.org

Reposted by Ana S. L. Rodrigues, Ben Bond‐Lamberty, Pieter A. Zuidema , and 2 more

juliakoricheva.bsky.social
Julia Koricheva @juliakoricheva.bsky.social · Aug 11
Few weeks left to apply for a fully funded PhD studentship in my lab @rhulbiology.bsky.social as part of new EU project Trees4Adapt
🌲🌳 Fieldwork in forest diversity experiments in Finland www.sataforestdiversity.org
📆 Apply by Sept 8th, start date - Jan 2026
👉 www.findaphd.com/phds/project...
🍁🌍🧪

Reposted by Belinda E. Medlyn, John Parker, Alain Paquette

nature.com
Nature @nature.com · Mar 19
Nature research paper: Widespread slow growth of acquisitive tree species

https://go.nature.com/43Tc3GY
Widespread slow growth of acquisitive tree species - Nature
Under field conditions, acquisitive tree species generally grow slowly, whereas conservative species show generally higher realized growth, owing to their ability to tolerate unfavourable environmental conditions.
go.nature.com

Reposted by John Parker

odedrechavi.bsky.social
Oded Rechavi @odedrechavi.bsky.social · Apr 1
Who does that? We rented a train JUST for the conference, that will take the participants from Prague to the woods of Bohemia. There'll be talks ON THE TRAIN. In Prague we'll have 5 locations with different atmospheres.
#theconferencetoendallconferences Register now:
woodstock.img.cas.cz

Reposted by John Parker

nature.com
Nature @nature.com · Apr 14
Here’s why the US research system is uniquely valuable, and what stands to be lost

https://go.nature.com/42tSfrd
How the United States became a science superpower — and how quickly it could crumble
US global dominance in science was no accident, but a product of a far-seeing partnership between public and private sectors to boost innovation and economic growth.
go.nature.com

Reposted by John Parker

bcastagneyrol.bsky.social
bcastagneyrol.bsky.social @bcastagneyrol.bsky.social · Jul 22
Happy to share our last study on #forest résistance to #pest insects.
We show that mixed forests are equally résistant to both native and invasive pests, whatever their feeding habits. Preprint available 👇🏻 www.authorea.com/users/948030...
More diverse temperate forests are more resistant against non-native insect herbivores
In general, trees suffer less damage by insect herbivores when growing in forest mixtures than in tree monocultures. Yet, most current knowledge is based on responses of native herbivores to tree dive...
www.authorea.com

Reposted by Julia Koricheva, John Parker, Rémy Beugnon

idiv-research.bsky.social
iDiv Biodiversity Research @idiv-research.bsky.social · Jul 9
🌳 Tree placement matters! A new study shows forests with diverse, non-clustered species boost biomass (+11%), nutrient cycling and decomposition.

🛠️ Line planting = sweet spot between ecology and management. 🔗 www.nature.com/articles/s41...

www.idiv.de/the-right-mi...
The right mix and planting pattern of trees enhance forest productivity and services
By modelling different planting design strategies and species mixtures, researchers offer insights for sustainable forest management, reforestation, and climate change mitigation in a new paper.
www.idiv.de

Reposted by John Parker

juliakoricheva.bsky.social
Julia Koricheva @juliakoricheva.bsky.social · Jul 9
Our new OA paper with Juri Felix and @philstevenson.bsky.social is out in @ecol-evol.bsky.social! We explored the role of leaf traits in driving genotypic diversity-mediated associational effects in silver birch #TreeDivNet 🌳🍁🌍🧪https://onlinelibrary.wiley.com/doi/10.1002/ece3.71768

Reposted by John Parker

christina-hn.bsky.social
Christina Hackmann @christina-hn.bsky.social · Jun 23
Excited to see the next chapter of my PhD published in #PlantBiology:
doi.org/10.1111/plb....
Another piece in the puzzle of tree-water relations and mixed-species forests!

@plantsciencedbg.bsky.social
@enricounigoe.bsky.social

#openaccess #isotopes 🍁

johndparker.bsky.social
John D. Parker @johndparker.bsky.social · Jun 20
Coyotes are fairly new to the US east coast. Here's a curious one exploring a mixture plot in the #BiodiversiTREE tree diversity experiment in Edgewater MD (taken by Cathy Fahey). Will be interesting to see how these top predators affect food webs. #treedivnet

Reposted by John Parker

americanscientist.org
American Scientist @americanscientist.org · Jun 19
Wide-ranging, curiosity-driven research has led to enormous theoretical and practical benefits over the decades, ranging from anti-obesity drugs to the internet.
“Why Are We Funding This?”
Long-standing myths about “silly science” have contributed to the reckless slashing of government-supported research.
www.americanscientist.org

Reposted by John Parker

standupforscience.bsky.social
Stand Up for Science! @standupforscience.bsky.social · Jun 19
#Resistance tools from bsky.app/profile/whys... when asked “why are we funding this” from uncles & Senators alike.

www.americanscientist.org/article/%E2%...

Shoutout bsky.app/profile/amer... for keeping the lights on while we reclaim #Science from the privatizing dismantlers.

#StandUpForScience

Reposted by John Parker

ecoinvasions.bsky.social
Anthony Ricciardi @ecoinvasions.bsky.social · Jun 19
There are myriad examples of prey naivete, enemy release, biotic resistance, mutualisms etc, that demonstrate the importance of evolutionary context in species interactions.

This is why species origins matter. #bioinvasions

Reposted by Julia Koricheva, John Parker, Julia I. Burton

alainpaquette.bsky.social
Alain Paquette @alainpaquette.bsky.social · Jun 12
📢 The @paqlab.bsky.social is recruiting a PhD (or MSc), and you don't want to miss that - best place ever to do you PhD! 😉 To work in IDENT, a network of experiments of the effects of diversity on forest functioning. Foreign student? It's gotten harder 😞 but we can help.
paqlab.uqam.ca

Reposted by John Parker, Paul J. Taillie

globalchangebio.bsky.social
Global Change Biology @globalchangebio.bsky.social · Jun 10
Native Plant Species Are More Resistant Than Invasive Aliens to Escalating Environmental Change Factors

🔗 buff.ly/Qp19wTu