ArticleTree physiology2023
Tree-ring isotopes from the Swiss Alps reveal non-climatic fingerprints of cyclic insect population outbreaks over the past 700 years.
Article in Tree physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 13 citations in OpenAlex.
- An Efficient Solid Phase Extraction Method for Purification and Analysis of Compound-Specific Plant Sugar Stable Hydrogen Isotope Values.Rapid communications in mass spectrometry : RCM · 2026Article
- The role of non-structural carbohydrates in tree physiology and forest management: a comprehensive review.Frontiers in plant science · 2026Review
- Opposing seasonal trends in source water and sugar dampen intra-annual variability in tree rings oxygen isotopes.The New phytologist · 2025Article
- Time-integrated δThe New phytologist · 2025Article
- Decoupling of Tree-Ring Cellulose δPlant, cell & environment · 2025Article
- Hot and Hungry - High temperatures induce changes in leaf carbon dynamics and sugar isotope fingerprints.NPJ science of plants · 2025Article
- Biochemical and biophysical drivers of the hydrogen isotopic composition of carbohydrates and acetogenic lipids.Science advances · 2024Article
- Triple-isotope analysis in tree-ring cellulose suggests only moderate effects of tree species mixture on the climate sensitivity of silver fir and Douglas-fir.Tree physiology · 2024Article
- Different responses of oxygen and hydrogen isotopes in leaf and tree-ring organic matter to lethal soil drought.Tree physiology · 2024Article
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recent experiments have underlined the potential of δ2H in tree-ring cellulose as a physiological indicator of shifts in autotrophic versus heterotrophic processes (i.e., the use of fresh versus stored non-structural carbohydrates). However, the impact of these processes has not yet been quantified under natural conditions. Defoliator outbreaks disrupt tree functioning and carbon assimilation, stimulating remobilization, therefore providing a unique opportunity to improve our understanding of changes in δ2H. By exploring a 700-year tree-ring isotope chronology from Switzerland, we assessed the impact of 79 larch budmoth (LBM, Zeiraphera griseana [Hübner]) outbreaks on the growth of its host tree species, Larix decidua [Mill]. The LBM outbreaks significantly altered the tree-ring isotopic signature, creating a 2H-enrichment and an 18O- and 13C-depletion. Changes in tree physiological functioning in outbreak years are shown by the decoupling of δ2H and δ18O (O-H relationship), in contrast to the positive correlation in non-outbreak years. Across the centuries, the O-H relationship in outbreak years was not significantly affected by temperature, indicating that non-climatic physiological processes dominate over climate in determining δ2H. We conclude that the combination of these isotopic parameters can serve as a metric for assessing changes in physiological mechanisms over time.
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