🪪📐Species identity and spatial scale drive context‑dependent tree diversity effects in a Finnish forest experiment

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

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

The last chapter from PhD thesis by Juri Felix (co-supervised with @philstevenson.bsky.social) is now out in @oikosjournal.bsky.social! The study explores the effects of tree species identity and spatial scale on tree diversity effects #TreeDivNet nsojournals.onlinelibrary.wiley.com/doi/10.1002/...

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

Fig. 3. Standardized effects of climatic, edaphic, and vegetation variables on the net diversity effect on topsoil C stocks (NDE C) across nine sites (n = 110) on a logarithmic scale (first y-axis; left) and natural scale (second y-axis; right). Error bars denote standard errors. Climatic variables include mean annual temperature (MAT), mean annual precipitation (MAP), as well as variability in temperature and precipitation (interannual CV). Edaphic variables include the inverted first principal component axis for soil pH and C:N ratio (Fertility index) as well as soil texture (based on clay content). Effects of standing stock is represented by basal area per hectare (BA ha-1). Significant effects on NDE C are indicated as *** = p 0.05, n.s. = not significant. Values below 0 indicate negative correlation between NDE C and predictors. see Werner R, Jensen J, Fransson P, Baum C, Sandén H, Rewald B, Godbold DL, Mayer M, Guillemot J, Robin A, Brancalion PHS, Koricheva J, Ponette Q, Muys B, Verheyen K, Scherer-Lorenzen M, Bauhus J, Beyer F, Hajek P, Jactel H, Weih M (2025) Effects of tree species richness on topsoil carbon and fungal diversity in European planted mixed forests are modulated by environmental conditions. Geoderma 464:117591. doi:https://doi.org/10.1016/j.geoderma.2025.117591 for details

🚨New paper in Geoderma🚨 Across 9 #TreeDivNet 🧪experiments in Europe, we show that mixed-species 🍁 #forests 🌳🌲store ~9% more #soilcarbon than monocultures. Gains are strongest on cool, <fertile, #climate stable sites, and linked to >fungal richness. #soilcarbon 👉 doi.org/10.1016/j.ge...

New OA #TreeDivNet paper is out in @geoderma.bsky.social and it is focussed on effects of tree species richness on topsoil carbon and fungal diversity doi.org/10.1016/j.ge...

🚨Publication alert🚨 #Forest 🌳 #diversity ≠ automatic #drought resilience. Across #treedivnet 🧪🍁experiments, single-year drought growth reflected #trees’ #hydraulic safety margins & drought intensity, not richness. In consecutive droughts, div effects grew—direction varied by site. #Traits matter.

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....

🗞️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/...

Tree Species Mixes Influence Forest Drought Resilience, Study Shows

A European study of 948 trees across 68 species mixtures found mixed forests grow better during single‑year droughts but can suffer when droughts last months or recur. getnews.me/tree-species-mixes-influ... #treedivnet #forestry #droughtresilience

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....

The tree growth–herbivory relationship depends on functional traits across forest biodiversity experiments - Nature Ecology & Evolution It is unclear whether the linkage between tree species richness and insect herbivory is consistent across climates and forest types. Here, the authors analyse data from forest biodiversity experiments...

New #TreeDivNet paper shows generally positive relationships between insect herbivory and tree growth & diversity modulated by leaf traits

www.nature.com/articles/s41...

Neighbourhood diversity increases tree growth in experimental forests more in wetter climates but not in wetter years - Nature Ecology & Evolution How tree diversity effects on ecosystem functioning vary along climatic gradients is unclear. Here, analysing data from 15 experimental forest sites, the authors show that tree growth responses to nei...

🗞️New publication🗞️

How do neighbourhood diversity effects on tree growth change with climatic conditions?🌳🌲🔆🌧️

We adress this question in our new study in @natecoevo.nature.com led by Liting Zheng.

www.nature.com/articles/s41...

/w @liting-zheng.bsky.social, Peter Reich & #TreeDivNet

It was a pleasure to meet and discuss tree trait responses to diversity @idiv-research.bsky.social 🌳🌲

#sTREND rocks🚨/w @juliakoricheva.bsky.social, @ritasousasilva.bsky.social, @habenblondeel.bsky.social, @cavenderg9.bsky.social, @shankothari.bsky.social, @lsachsenmaier.bsky.social, #TreeDivNet

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

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

Collection of tree discs for dendroecological analyses in the Sardinilla experiment. This is the 1st harvesting campaign in a planted tree diversity experiment. Now we are exited to share the results! Thx to amazing fieldworkers!!!

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...

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 ...

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/...

Delighted that our @oikosjournal.bsky.social Forum paper is the Editor's choice for the April issue! 🌳🌲 #TreeDivNet nsojournals.onlinelibrary.wiley.com/doi/epdf/10....

We worked in the #BEF-China experiment, the largest planted #tree diversity experiment in the world and part of #TreeDivNet.

We found: A forest with high tree species diversity 🌳🌲 is better at buffering heat peaks 🌡️ in summer and cold peaks ❄️ in winter than a forest with fewer tree species.

Today is #InternationalDayofForests and the 2025 theme is “Forests and Food”, so here are some photos of wonderful non-wood products we have enjoyed from the Satakunta forest diversity experiment in Finland for the last 25 years 😋🌲🌳🍄🍓 www.sataforestdiversity.org #TreeDivNet

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...

Very pleased that data from the Satakunta forest diversity experiments have contributed to this @nature.com paper led by Laurent Augusto & Marie Charru @inrae-france.bsky.social which shows that tree species with conservative traits often outperform acquisitive species #TreeDivNet rdcu.be/eeeA8

Tree diversity increases carbon sequestration The world's oldest tropical tree diversity experiment has delivered compelling evidence that forests with multiple tree species capture significantly more

Tree diversity increases carbon sequestration #TreeDivNet 🌳🌲 scienceblog.com/tree-diversi...

Forest temperature buffering in pure and mixed stands: A high-resolution temporal analysis with generalized additive models #TreeDivNet doi.org/10.1016/j.fo...

Tree Diversity Increases Carbon Stocks and Fluxes Above—But Not Belowground in a Tropical Forest Experiment We examined the potential of mixed-species planted forests compared to monospecific forests to act as a nature-based solution to climate change mitigation through carbon sequestration. By analysing m....

Interested in #forest restoration and #carbon sequestration?

🚨 In our new study in @globalchangebio.bsky.social we show that 🌳 Tree diversity 🌲 increases carbon stocks and fluxes in a tropical forest experiment.

#TreeDivNet, @uni-freiburg.de

onlinelibrary.wiley.com/doi/full/10....

Canopy complexity drives positive effects of tree diversity on productivity in two tree diversity experiments Forest canopy complexity (i.e., the three-dimensional structure of the canopy) is often associated with increased species diversity as well as high primary productivity across natural forests. Howeve...

new Ecology paper alert: we use 2 tree diversity-ecosystem function experiments to show that tree diversity increases productivity through increased canopy complexity (as measured with NEON airborne Lidar) #treedivnet

esajournals.onlinelibrary.wiley.com/doi/full/10....

In a new #OA Forum paper in @oikosjournal.bsky.social we discuss the underlying mechanisms of temporal shifts in tree diversity effects on forest ecosystem functioning and use the Satakunta forest diversity experiments as a case study 🌳🌲🌍🧪 #TreeDivNet
doi.org/10.1111/oik....

Stand Diversity Does Not Mitigate Increased Herbivory on Climate‐Matched Oaks in an Assisted Migration Experiment This study explores the interactive effects of assisted migration and stand diversification on leaf traits and herbivory using a tree diversity experiment in Southern England. Oaks of Italian provena....

Our new #OA paper in Plant, Cell & Environment explored the mechanisms of assisted migration effects on oak–herbivore interactions in the Climate Match tree diversity experiment. Led by Juri Felix in collaboration w/ @philstevenson.bsky.social 🌳🌍🧪 #TreeDivNet onlinelibrary.wiley.com/doi/10.1111/...

Early overyielding in a mixed deciduous forest is driven by both above- and below ground species-specific acclimation AbstractBackground and Aims. Mixed forest plantations are increasingly recognised for their role in mitigating the impacts of climate change and enhancing

🧪new #TreeDivNet publication🌿Early overyielding in a mixed deciduous forest is driven by both above- and below ground species-specific acclimation 🌳By Ramona Werner etal and FFWT MendelUs' Douglas Godbold and @borisrewald.bsky.social Congrats! Read: doi.org/10.1093/aob/...

Difference in species survival percentage (∆survival) in response to the survival of that species in monoculture, varying by SPEI (panel a) and REW (panel b).

🚨🧪#Tree #diversity reduces variability in sapling survival under drought: a new #TreeDivNet synthesis paper by
Blondeel et al. just published in J Ecology
besjournals.onlinelibrary.wiley.com/doi/10.1111/...

Pathways of tree diversity effects

Publication alert🚨Mixed #forests are great - this is common knowledge, but what is the #scientific basis? Read the #TreeDivNet 🌳🌲synthesis by Depauw et al. doi.org/10.1007/s407...