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John D. Parker

@johndparker

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

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18.11.2024
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Latest posts by John D. Parker @johndparker

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πŸͺͺπŸ“Species identity and spatial scale drive context‑dependent tree diversity effects in a Finnish forest experiment

vist.ly/4sut5

#DBH #NeedleTraits #NorwaySpruce #ScotsPine #SpeciesDiversity #TreeDivNet



25.02.2026 17:05 πŸ‘ 8 πŸ” 2 πŸ’¬ 0 πŸ“Œ 1
Fig. 2 Conceptual model of the expected role of dryland mechanisms along a climatic gradient from cool and moist towards hot and dry conditions (x-axis), and their relevance for climate-smart forestry (CSF, y

Fig. 2 Conceptual model of the expected role of dryland mechanisms along a climatic gradient from cool and moist towards hot and dry conditions (x-axis), and their relevance for climate-smart forestry (CSF, y

✨ Paper spotlight ✨

(🧡1/8) Shaping Future Forests: How can ecophysiology support climate-smart forest management?
nph.onlinelibrary.wiley.com/doi/10.1111/...

#PlantScience

25.02.2026 10:30 πŸ‘ 17 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0
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All Reforestation Methods Can Support Tropical Tree Diversity Recovery, but Drivers and Species Composition Vary

πŸ”— buff.ly/VB4ptsy

20.02.2026 13:25 πŸ‘ 21 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0

any observations from the Ga coast mangroves this winter?

16.02.2026 23:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Anthropogenic disturbance alters the diversity, composition, and abundance of microbes as well as the edaphic properties of the soil.

Anthropogenic disturbance alters the diversity, composition, and abundance of microbes as well as the edaphic properties of the soil.

#TansleyReview: Why, when, and how microbes can benefit ecological restorations: current approaches and future directions

πŸ“– nph.onlinelibrary.wiley.com/doi/10.1111/...
by Crawford et al.

@kerricrawford.bsky.social @collingdice.bsky.social
Figure created in biorender.com/iwso49n.

15.02.2026 13:00 πŸ‘ 25 πŸ” 13 πŸ’¬ 1 πŸ“Œ 0
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More than mitigation: The role of forests in climate adaptation Forests regulate global and local climates in ways that impact human well-being. In this Review, we discuss the scale-dependent mechanisms through which forests regulate climate, highlighting their co...

More than mitigation: The role of forests in climate adaptation | Science www.science.org/doi/10.1126/...

14.02.2026 15:39 πŸ‘ 26 πŸ” 10 πŸ’¬ 0 πŸ“Œ 0
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Ocean Empire - Science Politics Introducing a new column breaking down seismic shifts in ocean policy and explaining why they matter.

🌊I have a new gig. 🌊

Introducing: OCEAN EMPIRE, my new column about U.S ocean policy and foreign affairs for @sciencepolitics.bsky.social.

We are a brand new online magazine housed at Georgetown University. I'm thrilled to bring in-depth news analysis about what's happening to 70% of our planet.

05.02.2026 19:53 πŸ‘ 118 πŸ” 31 πŸ’¬ 4 πŸ“Œ 5
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πŸ“–Published!

Forest structural complexity recovers during secondary succession and reaches levels comparable to old-growth forests within 40 years🌳🌲

Recovery of forest structural complexity is driven by increasing tree species diversity along the recovery trajectory

πŸ”Žhttps://buff.ly/VGrATSK

05.02.2026 08:15 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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How strong is enemy release? A systematic compilation across taxa and approaches The enemy release hypothesis posits that introduced species escape some of their predators, pathogens, and parasites when they move to a new range. We used a systematic review to compile data from 69...

New year new paper!

How strong is enemy release? A systematic compilation across taxa and approaches
doi.org/10.1002/ecy....

We found that introduced plants and animals experience less enemy diversity and damage than native counterparts, but do not gain fitness benefits as a result.

21.01.2026 09:06 πŸ‘ 9 πŸ” 4 πŸ’¬ 0 πŸ“Œ 1
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Forest biodiversity experiments test how tree species richness improves the productivity & functioning of forests. After 30 years, there are now 45 experiments worldwide!

A new synthesis on 30 years of research:
Liu et al. 2026: doi.org/10.1038/s443...
#TreeDivNet #BEF-China #MultiTroph

15.01.2026 12:19 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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πŸ“–Published!

These results provide the first experimental evidence that enhancing structural heterogeneity at the landscape scale can restore multidimensional hoverfly diversity in temperate forests🌲 πŸͺ°

Read more:https://buff.ly/XdZNi2J

16.01.2026 08:15 πŸ‘ 20 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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Best TikTok thing going is the two dudes trying food from every country without leaving NYC. If you haven’t seen them yet, it’s incredible. My favorite so far is last week’s. Legit got me emotional.

09.01.2026 01:50 πŸ‘ 15484 πŸ” 3654 πŸ’¬ 234 πŸ“Œ 735
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New paper out! πŸŽ‰ Led by Jenickson Costa @uspoficial.bsky.social @cirad.bsky.social @jenicksoncosta.bsky.social

Forest Ecosystem Multifunctionality: A Systematic Review of Measures and Drivers
🌳🌲
link.springer.com/article/10.1...

08.01.2026 15:10 πŸ‘ 16 πŸ” 4 πŸ’¬ 1 πŸ“Œ 2
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If you can’t be simple, you will be ignored This title is an oversimplification. That is deliberate. In a world shaped by shrinking attention spans, overflowing news cycles, and…

Experts don’t lose public debates because they’re wrong. They lose because they’re hard to hear.

In energy, complexity without a clear takeaway gets ignored. Simpler, louder stories take its place.

My latest piece is about starting with clarity and then layering nuance.

medium.com/@jan.rosenow...

07.01.2026 17:44 πŸ‘ 701 πŸ” 156 πŸ’¬ 33 πŸ“Œ 8
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.

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.

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. 🌐🌏πŸ§ͺ besjournals.onlinelibrary.wiley.com/doi/10.1111/...

09.12.2025 09:39 πŸ‘ 29 πŸ” 12 πŸ’¬ 0 πŸ“Œ 1
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Published!πŸ“–

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

08.12.2025 08:15 πŸ‘ 20 πŸ” 9 πŸ’¬ 2 πŸ“Œ 0
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Volatile organic compounds diversity mediates tree diversity–insect herbivory relationships @oikosjournal.bsky.social #TreeDivNet nsojournals.onlinelibrary.wiley.com/doi/10.1002/...

08.12.2025 09:56 πŸ‘ 10 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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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.

ICYMI: New online! Mangrove biodiversity and ecosystem services

24.11.2025 19:59 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
A male moose (Alces alces) in a Swedish forest with abundant broadleaf browse (a), and a monoculture ofNorway spruce (Picea abies) (b)

A male moose (Alces alces) in a Swedish forest with abundant broadleaf browse (a), and a monoculture ofNorway spruce (Picea abies) (b)

πŸ†• in "Frontiers in Ecology and the Environment": Forest recovery isn't just about tree coverβ€”nutrition matters! How managing chemical landscapes could boost wildlife conservation

πŸ“„Managing nutritional landscapes as the next frontier in forest ecology and conservation
doi.org/10.1002/fee....

19.11.2025 16:45 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1
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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.

New online! Mangrove biodiversity and ecosystem services

17.11.2025 19:58 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Diverse forests are more resistant to climate change

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...

13.11.2025 11:04 πŸ‘ 29 πŸ” 14 πŸ’¬ 2 πŸ“Œ 3
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7 basic science discoveries that changed the world Ozempic, MRI machines and flat screen televisions all emerged out of fundamental research decades earlier β€” the very types of study being slashed by the US government.

Ozempic, MRI machines and flat screen televisions all emerged out of fundamental research decades earlier β€” the very types of study being slashed by the US government

go.nature.com/47hn0n5

01.11.2025 17:39 πŸ‘ 374 πŸ” 147 πŸ’¬ 5 πŸ“Œ 7
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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...

21.10.2025 11:17 πŸ‘ 30 πŸ” 30 πŸ’¬ 1 πŸ“Œ 1
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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...

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/...

16.10.2025 20:46 πŸ‘ 41 πŸ” 20 πŸ’¬ 2 πŸ“Œ 2
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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....

πŸ—žοΈNew study in @globalchangebio.bsky.social πŸ—žοΈ

🌳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/...

29.09.2025 06:43 πŸ‘ 24 πŸ” 6 πŸ’¬ 0 πŸ“Œ 1
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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! 🌍🌱

πŸ“Ή Watch this video by @fao.org

27.09.2025 09:31 πŸ‘ 54 πŸ” 24 πŸ’¬ 1 πŸ“Œ 1
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Our new #TreeDivNet paper led by HernΓ‘n Serrano-LeΓ³n 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....

10.09.2025 10:01 πŸ‘ 23 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0

New study in @natcomms.nature.com co-authored by iDiv's @smartenwinter.bsky.social indicates that it could be the same characteristics that make plants successful both in their homelands and in foreign regions.⬇️

10.09.2025 08:06 πŸ‘ 12 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
figure saying for the results section of a paper, text is 1 star. tables are two starts and figures are the best, 5 starts

figure saying for the results section of a paper, text is 1 star. tables are two starts and figures are the best, 5 starts

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 reviewsπŸ™‚

28.08.2025 14:52 πŸ‘ 8 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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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

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!

19.08.2025 17:14 πŸ‘ 227 πŸ” 66 πŸ’¬ 7 πŸ“Œ 4