Dr. Joan Dudney
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dudney-joan.bsky.social
Dr. Joan Dudney
@dudney-joan.bsky.social

Assistant Professor @ucsantabarbara Global Change Forest Ecologist @switzernetwork @SmithFellows @PeaceCorps #BLM

Environmental science 80%
Geography 20%
Pinned
Disturbance interactions have profound consequences for forest health, yet remain poorly understood.

Here we use DAGs to differentiate #Synergisms, #CompoundDisturbances & #NetworkEffects and review the impacts of climate change.

Final version out now! 🧪🌐🍁🌱
www.annualreviews.org/content/jour...

Reposted by Joan Dudney

#Mediterranean seafloors are heating fast 🌊🔥. Our new study shows bottom marine #heatwaves will intensify, last longer, and threaten benthic species—often year-round by 2100. A growing #ClimateRisk for benthic #biodiversity.
#ClimateChange 🌍🌐🧪

www.sciencedirect.com/science/arti...
Increasing bottom marine heatwaves pose a critical risk to Mediterranean benthic species
Marine heatwaves (MHWs) are extreme ocean temperature events broadly affecting marine ecosystems. The Mediterranean Sea has faced severe impacts from …
www.sciencedirect.com
Hotter, drier and more seasonal forests in the eastern and southern Amazon are losing species, while Northern Andean forests are accumulating species, acting as a refuge for those that are climate-displaced 🧪 www.nature.com/articles/s41...
Tree diversity is changing across tropical Andean and Amazonian forests in response to global change - Nature Ecology & Evolution
This study examines long-term changes in species richness across tropical forests in the Andes and Amazon. Hotter, drier and more seasonal forests in the eastern and southern Amazon are losing species...
www.nature.com
Fast-growing trees are set to dominate the #forests of the #future — but at a cost🌳
Our Nature Plants (@natplants.nature.com) study shows a global shift toward "sprinter" tree species, while slow-growing, functionally critical #trees face elevated #extinction risk. www.nature.com/articles/s41...
Global functional shifts in trees driven by alien naturalization and native extinction - Nature Plants
This study finds that native tree extinctions and alien naturalizations are pushing forests towards fast-growing, resource-demanding species. This global shift could affect carbon storage and ecosyste...
www.nature.com
Meta-analysis is ubiquitous in ecology, but it is poor at determining which conservation interventions work in which contexts

That’s why we’ve developed Precision Ecology, using methods developed in, eg, medicine to inform precise, data-informed conservation

www.nature.com/articles/s41...
Precision ecology for targeted conservation action - Nature Ecology & Evolution
The fields of medicine and marketing use large data volumes and computational power to target individuals. This Perspective argues that applied ecologists should draw on such approaches to provide dec...
www.nature.com
MAJOR NEWS! We just launched an awesome new tool! The illustrated Birds of the World Phylogeny Explorer lets users trace any bird’s lineage, compare species relationships, and explore major evolutionary milestones with a click of a button. SHARE and EXPLORE! birdsoftheworld.org/bow/news/phy...
Species shift their ranges in response to climate change, but many can't keep up. The resulting "community-climate disequilibrium" can impair ecosystem function and cause counterintuitive dynamics, like short-term gain but long-term loss onlinelibrary.wiley.com/doi/10.1111/...
Linking Community‐Climate Disequilibrium to Ecosystem Function
When turnover in species composition lags behind the pace of climate change, community-climate disequilibrium increases. We, for the first time, explicitly link this disequilibrium to ecosystem funct...
onlinelibrary.wiley.com

Very comprehensive, insightful study on the DSR—diversity is not stabilizing when using abundance-weighted metrics and total species richness. An important reminder that our outcome metrics really matter!
Reconciling links between diversity and population stability across global plant communities

Pan et al.

nph.onlinelibrary.wiley.com/doi/10.1111/...
Reconciling links between diversity and population stability across global plant communities

Pan et al.

nph.onlinelibrary.wiley.com/doi/10.1111/...

Reposted by Joan Dudney

Plant traits matter in fire ecology!

"On average, deciduous forests lose less than half as much carbon to wildfire combustion as conifer forests per unit burned area"

www.nature.com/articles/s41...
Increased deciduous tree dominance reduces wildfire carbon losses in boreal forests - Nature Climate Change
More frequent fires in the North American boreal are causing shifts from conifer to deciduous forests. This study finds that when deciduous forests burn, their carbon losses are driven by weather, but...
www.nature.com

🥳🔥
Come work with us in beautiful Santa Barbara!
Please repost! The LOC Lab @UCSB is recruiting a #PostdoctoralScholar in forest ecology and data science to
develop data-driven models of forest resilience to compound disturbances (e.g., fire, drought, insects). 🌱🍁🌏🧪🌐

Applications due Feb 5
Apply here: www.landscapesofchangelab.com/were-hiring-1
In Nature Communications, our paper led by Viktoriia Radchuk shows that phenological change mediates global vertebrate responses to temperature. The study compiles 213 time series of phenotypes and population sizes, including data from Bylot. Read: urls.fr/w7ZKp9 @natcomms.nature.com 🧪🌿🌎🌐🦉🦑🦊🐻‍❄️
Really interesting and confounding trend reported in Dynamic Ecology - ecology citations peaked in 2021 and have been declining since. Continued impact from the pandemic? 🧪🌐🌾 dynamicecology.wordpress.com/2026/01/14/s...
Science (all of it) peaked in 2021
An ecologist friend* noticed that the annual number of times he’s been cited grew throughout his career up until 2021, when it peaked. It then declined for a couple of years straight. Then it…
dynamicecology.wordpress.com
wonderful collab lead by @zurelllab.bsky.social on the context dependency of climatic niche conservatism of non-native plants: www.nature.com/articles/s41... #UniversidadMayor #DataObservatory
1/🧵 Paper out! 🎉🌿🔒
VegVault is now published in Nature Scientific Data: a global database linking palaeo + modern vegetation with traits + climate/soil drivers.
🌐website: bit.ly/VegVault
📜paper: doi.org/10.1038/s415...

#VegVault #Ecology #Paleoecology #Vegetation #FunctionalTraits
Good morning everyone. Today in “one day, one paper “, forest loss intensifies meteorological drought across over half of global climate zones, with boreal regions most affected as reduced precipitation and altered surface energy amplify water deficits and extend drought impacts 🌎🍁
Forest loss intensifies meteorological drought in more than half of Earth’s climate zones
Forest loss increases the risk of meteorological drought more in boreal zones than in the tropics.
www.science.org
Hemos empezado el año con un artículo nuevo, y este es muy bonito

authors.elsevier.com/sd/article/S...

"Summer aridity modulates tree growth response to thinning in Mediterranean pines"

Vamos con el primer hilo del año (1/13)
@csicdivulga.bsky.social
#SoyForestal
New research from our group: A pervasive increase in tree mortality across the Australian continent - driven by rising temperatures
rdcu.be/eXSa7
Pervasive increase in tree mortality across the Australian continent
Nature Plants - Eight decades of forest plot monitoring show a pervasive increase in tree mortality across Australia’s forest biomes driven by climate change, jeopardizing their role as...
rdcu.be

Reposted by Joan Dudney

Studying 800 balsam firs, researchers found how trees stop growing in fall affects future forests, aiding in predicting carbon storage under changing climates.🌲
#climate #forest #carbon
@forestecosyst.bsky.social
www.sciencedirect.com/science/arti...

Reposted by Joan Dudney

Methods for identifying topkill in conifers using airborne lidar to monitor structural diversity and disturbance | Journal of Forestry Research link.springer.com/article/10.1...
@forestryjfr.bsky.social
Methods for identifying topkill in conifers using airborne lidar to monitor structural diversity and disturbance - Journal of Forestry Research
Forest insects and pathogens, in addition to fire, contribute to structural diversity by creating snags (dead trees) and dead tops on live trees or “topkill” in conifers throughout western North Ameri...
link.springer.com

Reposted by Joan Dudney

BOU @bou.org.uk · Jan 2
Severe fire has impacted populations of the California spotted owl more than fuels management or drought-related tree mortality | Forest Ecology and Management | doi.org/10.1016/j.fo... | #ecology #bioacoustics #ornithology 🔊🪶

Reposted by Joan Dudney

Final version published in Gold OA journal Forest Ecosystems
📰Forest structures are shaped by elevation and precipitation in the Central Himalaya www.sciencedirect.com/science/arti...

Congratulations on this important study!

Reposted by Joan Dudney

Restoring white pines in Idaho forests not only aids their recovery but also enhances understory plant diversity, improving ecosystem health and resilience.👇
#pine #forest #ecosystem
@forestecosyst.bsky.social
www.sciencedirect.com/science/arti...
Please repost! The LOC Lab @UCSB is recruiting a #PostdoctoralScholar in forest ecology and data science to
develop data-driven models of forest resilience to compound disturbances (e.g., fire, drought, insects). 🌱🍁🌏🧪🌐

Applications due Feb 5
Apply here: www.landscapesofchangelab.com/were-hiring-1

Reposted by Joan Dudney

The last of my dissertation work is in Ecosystems! Please reach out if I can share a PDF (or a story about trying to do field work during the two biggest California fire years on record 🥲)
Repeated High-severity Fire in the Sierra Nevada and Southern Cascades of California, United States: Landscape Trends and Belowground Effects - Ecosystems
Repeated high-severity fire is threatening forest resilience in dry and mesic forests of the Sierra Nevada and southern Cascades of California, USA. While impacts to plant communities have been descri...
link.springer.com