A surreal illustration of a Fremont cottonwood tree, representing adaptation to climate change.

Climate Change and Trees: Can Phenotypic Plasticity Save Our Forests?

Samir D’Costa monogram
Samir D’Costa in Climate & Environment October 2026 • 4 min read.

"New research reveals how a tree's ability to adapt its behavior could be key to surviving a rapidly changing climate."


The relentless march of climate change is reshaping our world, and few ecosystems are feeling the pressure more acutely than our forests. As temperatures rise and environmental conditions become increasingly unpredictable, the ability of plant species to adapt and survive is being pushed to its limits. While some species might migrate or face decline, others possess a remarkable tool for survival: phenotypic plasticity.

Phenotypic plasticity refers to the capacity of an organism to alter its physical and behavioral traits in response to changes in the environment. Think of it as a plant's ability to 'learn' and adjust to new conditions. This adaptation might involve changes in the timing of key life events, such as when trees produce leaves or set buds, allowing them to better align with the altered seasons.

Recent research published in Global Change Biology sheds light on the crucial role of phenotypic plasticity in the survival of Fremont cottonwood trees (Populus fremontii). This study, led by Hillary F. Cooper and colleagues, investigates how genetic and environmental factors influence the phenology (the timing of biological events) of these trees, revealing valuable insights into the adaptive potential of forests in the face of climate change.

AI Search Multiple angles on this topic

Microsoft’s Technology Ecosystem

The supplied sources do not provide statistics about climate change, trees, or phenotypic plasticity. They identify Microsoft Corporation as an American multinational technology company headquartered in Redmond, Washington. Microsoft offers products and services including Windows, Azure, Copilot, Microsoft 365, Teams, Xbox, and Surface.

Changing Digital Support Methods

The supplied sources do not describe accepted methods for studying tree responses to climate change. They do show Microsoft updating its digital services, including an announcement about the deprecation of Exchange Online EWS. Microsoft Support directs users toward common-problem solutions or assistance from a support agent, while Hotmail sign-in procedures may require identity confirmation after travel or device changes.

Windows 11 Upgrade Preparation

The supplied source does not document historical milestones or foundational discoveries in forest ecology. It instead describes preparation for upgrading to Windows 11. The guidance includes checking whether a device can run Windows 11, backing up files, and installing the operating system.

How Does a Tree Change Its Stripes? Understanding Phenotypic Plasticity in Fremont Cottonwoods

A surreal illustration of a Fremont cottonwood tree, representing adaptation to climate change.

The researchers focused on two key phenological traits in Fremont cottonwoods: bud set (when trees form buds in the fall to prepare for winter) and bud flush (when buds open and leaves emerge in the spring). By studying trees from 16 different populations across Arizona, planted in three common gardens with varying climates, the team teased apart the genetic and environmental influences on these traits.

The study revealed significant genetic, environmental, and interaction effects on both bud set and bud flush. This means that both a tree's genes and its environment play a crucial role in determining its phenology. However, the degree of plasticity varied depending on the origin of the trees.

  • Genetic Variation (G): Differences in genes influence phenology.
  • Environmental Influence (E): Climate and location matter.
  • Gene-Environment Interaction (GxE): Genes and environment combine to affect bud development.
AI Search Multiple angles on this topic

Automotive Suspension Discussions

The supplied sources do not present current research or reviews about phenotypic plasticity, forests, or climate change. An Edmunds discussion about Toyota Highlander suspension modifications says that participants had not identified changes to the basic suspension and anticipated the need for new struts and other components as the vehicles aged. Other supplied Edmunds pages concern Toyota Camry forums and 2018 Camry lease questions involving prices, deals, incentives, and payments.

Limits of the Available Evidence

No sources were supplied for this subsection. Accordingly, the available material cannot establish specific counterarguments, failure rates, or limits concerning phenotypic plasticity in forests. Any assessment of whether plasticity can save forests would require evidence about tree responses, environmental thresholds, and long-term outcomes.

Google Maps Routes and Options

The supplied sources do not compare forest-management strategies or tree adaptations. They describe Google Maps as available on mobile devices and computers, with features for learning the basics and obtaining directions. Google Maps can provide routes by car, public transport, walking, rideshare, bicycle, airplane, or motorcycle; when multiple routes are available, the best route is shown in blue and others in gray.

Trees from hotter, drier climates displayed greater plasticity, exhibiting more flexibility in their bud set and bud flush timing. In contrast, trees from colder, frost-prone regions showed less plasticity. This suggests that the ability to adapt phenology is itself an adaptation shaped by the climate a tree experiences.

Adapting to Change: What Does This Mean for Our Forests?

The findings of this study highlight the importance of understanding phenotypic plasticity in the context of climate change. As temperatures continue to rise and environmental conditions become more erratic, the ability of trees to adapt their phenology will be crucial for their survival. While this research focuses on Fremont cottonwoods, the implications extend to forests worldwide.

AI Search Multiple angles on this topic

Evidence Boundaries

No sources were supplied for this subsection. The available material therefore cannot support expert conclusions about phenotypic plasticity or the future of forests. A defensible synthesis would need sources directly addressing tree biology, climate exposure, adaptation, and ecosystem persistence.

Personalized Digital Recommendations

The supplied sources do not describe future research directions in forest adaptation. YouTube watch history can support relevant video recommendations when enabled, and deleting or disabling history prevents that content from informing future recommendations. OBS Studio is available for Windows, Mac, and Linux, while its Advanced Scene Switcher plugin automates tasks through macros made from conditions and actions.

Insufficient Systemic Evidence

No sources were supplied for this subsection. The provided material cannot substantiate broader systemic challenges involving forests, climate policy, biodiversity, or resource management. Those issues should be discussed only with evidence specifically addressing their environmental and social dimensions.

Human Impacts Require Direct Evidence

No sources were supplied for this subsection. The available material does not establish how climate-driven forest change affects communities, workers, health, livelihoods, or cultural practices. Direct evidence from environmental and social research would be needed to evaluate those real-world impacts.

How the cottonwood result compares with later work

A synthesis of tree-phenology studies drew on spring-event records from North American and European provenances, placing the cottonwood experiment within a broader comparison of how tree origins relate to seasonal timing.[1]

How cottonwood phenology was tested across climates

Sample size16 populations[2]
SettingReciprocal common gardens at hot, warm, and cool sites[2]
ComparisonProvenance populations compared across reciprocal common gardens at hot, warm, and cool sites[2]
Main outcomeVariation and plasticity in fall bud set and spring bud flush[2]
Effect sizeTrees from hotter, southern populations exhibited up to four times greater plasticity compared to northern, frost-adapted populations[2]
Times cited121[2]

Questions that remain about plasticity and persistence

  • Do shifts in bud timing translate into improved survival or population growth when conditions move beyond a species’ present range?[3]
  • How well do responses measured in gardens predict outcomes under future climates, rather than serving as a spatial comparison?[4] [5]

Terms for reading the study

Phenotypic plasticity
Changing an organism’s traits in response to environmental change.[2]

Sources

  1. Weak evidence of provenance effects in spring phenology across Europe and North America. (pubmed.ncbi.nlm.nih.gov)
  2. Genotypic variation in phenological plasticity: Reciprocal common gardens reveal adaptive responses to warmer springs but not to fall frost (Wiley, 2018)
  3. Frontiers | Does Phenological Plasticity Help or Hinder Range Shifts Under Climate Change? (www.frontiersin.org)
  4. Evolutionary and plastic responses to climate change in terrestrial plant populations (pmc.ncbi.nlm.nih.gov)
  5. Contrasting Genomic Signatures of Climate Adaptation and Adaptive Plasticity Across the Distribution Ranges of Sessile Oak and European Beech (Molecular Ecology, 2026)

About this Article -

Written with AI assistance from published research, and reviewed by the Mystum team. See our About page for more information.

This article is based on research published under:

DOI-LINK: 10.1111/gcb.14494, Alternate LINK

Title: Genotypic Variation In Phenological Plasticity: Reciprocal Common Gardens Reveal Adaptive Responses To Warmer Springs But Not To Fall Frost

Subject: General Environmental Science

Journal: Global Change Biology

Publisher: Wiley

Authors: Hillary F. Cooper, Kevin C. Grady, Jacob A. Cowan, Rebecca J. Best, Gerard J. Allan, Thomas G. Whitham

Published: 2018-11-14

Everything You Need To Know

1

What is phenotypic plasticity and why is it important for trees facing climate change?

Phenotypic plasticity is the capability of a tree to alter its physical and behavioral traits in response to changes in its environment. It allows trees to 'learn' and adjust to new conditions, such as changes in the timing of key life events like leaf production or bud setting, which is crucial for survival as temperatures rise and environmental conditions become more unpredictable due to climate change. Understanding and leveraging phenotypic plasticity could be a key strategy in helping forests adapt to the challenges posed by a rapidly changing climate.

2

How do genetic variation and environmental factors influence the timing of biological events (phenology) in Fremont cottonwood trees?

Research on Fremont cottonwood trees demonstrates that both genetic variation and environmental factors significantly impact phenology, specifically bud set and bud flush. Genetic differences (G) influence the phenology of trees, while the climate and location (E) also play a crucial role. The interaction between genes and the environment (GxE) further affects bud development. Trees from hotter, drier climates exhibit greater plasticity, showing more flexibility in bud set and bud flush timing, whereas trees from colder regions display less plasticity, indicating that the ability to adapt phenology is shaped by the climate a tree experiences.

3

What did the study in Global Change Biology reveal about phenotypic plasticity in Fremont cottonwood trees, and who conducted it?

The study published in Global Change Biology, led by Hillary F. Cooper and colleagues, revealed the critical role of phenotypic plasticity in the survival of Fremont cottonwood trees. The research investigated how genetic and environmental factors influence the phenology, specifically bud set and bud flush, of these trees. The findings showed that trees from different populations exhibited varying degrees of plasticity depending on their origin, with trees from hotter, drier climates displaying greater adaptability. This highlights the importance of understanding phenotypic plasticity for forest survival amid climate change.

4

What are 'bud set' and 'bud flush' in the context of Fremont cottonwood trees, and why are they important for understanding adaptation to climate change?

Bud set refers to when trees form buds in the fall to prepare for winter, while bud flush is when buds open and leaves emerge in the spring. These two phenological traits are crucial for understanding how Fremont cottonwood trees adapt to climate change because their timing directly affects the tree's ability to survive and thrive in changing environmental conditions. Studying bud set and bud flush helps researchers determine the extent to which trees can adjust their life cycles in response to rising temperatures and altered seasons. Further research into the genetic and environmental factors influencing these traits can help inform conservation strategies.

5

If Fremont Cottonwood trees from hotter climates have greater plasticity, can we relocate trees from warmer climates to help trees adapt to climate change?

While it's true that Fremont cottonwood trees from hotter climates have demonstrated greater phenotypic plasticity in bud set and bud flush, directly relocating trees from warmer climates to colder ones as a climate adaptation strategy is complex and fraught with potential risks. Such an approach would need to carefully consider gene-environment interactions (GxE), as trees from warmer climates might not be fully adapted to the day length, soil composition, or other biotic stressors present in the new environment. Furthermore, introducing new populations could disrupt local ecosystems, outcompete native species, or introduce diseases. More research is needed to understand the long-term consequences of such interventions and to identify the most effective and sustainable ways to support forest adaptation.

Newsletter Subscribe

Subscribe to get the latest articles and insights directly in your inbox.