John D. Parker
@johndparker.bsky.social
scientist working on plant community response to diversity, global change, herbivory, and biological invasions. Not good at social media.
Reposted by John D. Parker
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
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
November 1, 2025 at 5:39 PM
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
go.nature.com/47hn0n5
Reposted by John D. Parker
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...
October 21, 2025 at 11:17 AM
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 John D. Parker
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
October 16, 2025 at 8:46 PM
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/...
Reposted by John D. Parker
🗞️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 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
September 29, 2025 at 6:43 AM
🗞️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 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/...
Reposted by John D. Parker
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
Let’s protect and restore them for people & planet! 🌍🌱
📹 Watch this video by @fao.org
September 27, 2025 at 9:31 AM
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
Let’s protect and restore them for people & planet! 🌍🌱
📹 Watch this video by @fao.org
Reposted by John D. Parker
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....
September 10, 2025 at 10:01 AM
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 John D. Parker
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.⬇️
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
September 10, 2025 at 8:06 AM
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.⬇️
Reposted by John D. Parker
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🙂
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🙂
August 28, 2025 at 2:52 PM
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🙂
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🙂
Reposted by John D. Parker
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
August 19, 2025 at 5:14 PM
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!
Reposted by John D. Parker
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...
🍁🌍🧪
🌲🌳 Fieldwork in forest diversity experiments in Finland www.sataforestdiversity.org
📆 Apply by Sept 8th, start date - Jan 2026
👉 www.findaphd.com/phds/project...
🍁🌍🧪
August 11, 2025 at 10:43 AM
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...
🍁🌍🧪
🌲🌳 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 John D. Parker
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...
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
July 22, 2025 at 4:40 PM
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...
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...
Reposted by John D. Parker
🌳 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...
🛠️ 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
July 9, 2025 at 9:04 AM
🌳 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...
🛠️ Line planting = sweet spot between ecology and management. 🔗 www.nature.com/articles/s41...
www.idiv.de/the-right-mi...
Reposted by John D. Parker
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
July 9, 2025 at 6:20 AM
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 D. Parker
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 🍁
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 🍁
June 23, 2025 at 9:47 PM
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 🍁
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 🍁
Reposted by John D. Parker
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
June 19, 2025 at 2:09 PM
Wide-ranging, curiosity-driven research has led to enormous theoretical and practical benefits over the decades, ranging from anti-obesity drugs to the internet.
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
June 20, 2025 at 10:52 AM
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 D. Parker
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
This is why species origins matter. #bioinvasions
June 19, 2025 at 7:33 AM
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
This is why species origins matter. #bioinvasions
Reposted by John D. Parker
#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
www.americanscientist.org/article/%E2%...
Shoutout bsky.app/profile/amer... for keeping the lights on while we reclaim #Science from the privatizing dismantlers.
#StandUpForScience
June 19, 2025 at 10:49 AM
#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
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 D. Parker
📢 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
paqlab.uqam.ca
June 12, 2025 at 1:52 AM
📢 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
paqlab.uqam.ca
Reposted by John D. Parker
Native Plant Species Are More Resistant Than Invasive Aliens to Escalating Environmental Change Factors
🔗 buff.ly/Qp19wTu
🔗 buff.ly/Qp19wTu
June 10, 2025 at 4:59 PM
Native Plant Species Are More Resistant Than Invasive Aliens to Escalating Environmental Change Factors
🔗 buff.ly/Qp19wTu
🔗 buff.ly/Qp19wTu
Reposted by John D. Parker
Interested in biomass production in diverse planted #forests?🌳🌲
In our new study led by Georgios Skiaderesis, we analyzed the effects of species- and structural diversity on woody biomass production in the #Sardinilla experiment.
#TreeDivNet @uni-freiburg.de
www.sciencedirect.com/science/arti...
In our new study led by Georgios Skiaderesis, we analyzed the effects of species- and structural diversity on woody biomass production in the #Sardinilla experiment.
#TreeDivNet @uni-freiburg.de
www.sciencedirect.com/science/arti...
June 4, 2025 at 7:11 AM
Interested in biomass production in diverse planted #forests?🌳🌲
In our new study led by Georgios Skiaderesis, we analyzed the effects of species- and structural diversity on woody biomass production in the #Sardinilla experiment.
#TreeDivNet @uni-freiburg.de
www.sciencedirect.com/science/arti...
In our new study led by Georgios Skiaderesis, we analyzed the effects of species- and structural diversity on woody biomass production in the #Sardinilla experiment.
#TreeDivNet @uni-freiburg.de
www.sciencedirect.com/science/arti...
Reposted by John D. Parker
And read Stastny et al.'s study: doi.org/10.1002/fee....
Regional adaptation of integrated pest management to control invasive forest insects
Globalization is increasing the threat of invasive forest insects to ecosystems. Control efforts against the same pest species progressively occur across distant jurisdictions as integrated pest mana...
doi.org
June 2, 2025 at 8:11 PM
And read Stastny et al.'s study: doi.org/10.1002/fee....
led by Cathy Fahey, we used #metabolomics in the #BiodiversiTREE experiment to show that chemically mediated plant–enemy interactions promote positive biodiversity effects on young tree growth - Journal of Ecology #treedivnet besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Chemically mediated plant–enemy interactions promote positive biodiversity effects on young tree growth
A large-scale tree diversity experiment reveals that early growth of trees is influenced by phytochemically mediated trophic interactions. Specifically, foliar chemical diversity is higher for trees ...
besjournals.onlinelibrary.wiley.com
June 2, 2025 at 1:34 PM
led by Cathy Fahey, we used #metabolomics in the #BiodiversiTREE experiment to show that chemically mediated plant–enemy interactions promote positive biodiversity effects on young tree growth - Journal of Ecology #treedivnet besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by John D. Parker
The President's Budget request as released yesterday will gut scientific research. Why should you care?
1) Science is fundamentally a jobs program. Many 100,000s are employed to do science and work for you, the US taxpayer.
1) Science is fundamentally a jobs program. Many 100,000s are employed to do science and work for you, the US taxpayer.
May 31, 2025 at 3:30 PM
The President's Budget request as released yesterday will gut scientific research. Why should you care?
1) Science is fundamentally a jobs program. Many 100,000s are employed to do science and work for you, the US taxpayer.
1) Science is fundamentally a jobs program. Many 100,000s are employed to do science and work for you, the US taxpayer.
Reposted by John D. Parker
How bad will it be? Catastrophic.
Proposed cuts to #NSF, #NIH, and #NASA will set the US R&D landscape back 25 yrs+, cause economic and job loss now, and undermine innovations to come.
But, this is the WH's *proposed* budget.
Speak up now before it is too late.
(inflation adjusted $-s below)
Proposed cuts to #NSF, #NIH, and #NASA will set the US R&D landscape back 25 yrs+, cause economic and job loss now, and undermine innovations to come.
But, this is the WH's *proposed* budget.
Speak up now before it is too late.
(inflation adjusted $-s below)
May 31, 2025 at 2:50 AM