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The Last Trees Standing: Climate modulates tree survival factors during a prolonged bark beetle outbreak in Europe

Korolyova, Nataliya and Buechling, Arne and Duraciova, Renata and Zabihi, Khodabakhsh and Turcani, Marek and Svoboda, Miroslav and Blaha, Jaromir and Swarts, Kelly and Polacek, Miroslav and Hradecky, Jaromir and Cervenka, Jaroslav and Nemcak, Pavel and Schlyter, Fredrik and Jakus, Rastislav (2022). The Last Trees Standing: Climate modulates tree survival factors during a prolonged bark beetle outbreak in Europe. Agricultural and Forest Meteorology. 322 , 109025
[Research article]

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Abstract

Plant traits are an expression of strategic tradeoffs in plant performance that determine variation in allocation of finite resources to alternate physiological functions. Climate factors interact with plant traits to mediate tree survival. This study investigated survival dynamics in Norway spruce (Picea abies) in relation to tree-level morphological traits during a prolonged multi-year outbreak of the bark beetle, Ips typographus, in Central Europe. We acquired datasets describing the trait attributes of individual spruce using remote sensing and field surveys. We used nonlinear regression in a hypothesis-driven framework to quantify survival probability as a function of tree size, crown morphology, intraspecific competition and a growing season water balance. Extant spruce trees that persisted through the outbreak were spatially clustered, suggesting that survival was a nonrandom process. Larger diameter trees were more susceptible to bark beetles, reflecting either life history tradeoffs or a dynamic interaction between defense capacity and insect aggregation behavior. Competition had a strong negative effect on survival, presumably through resource limitation. Trees with more extensive crowns were buffered against bark beetles, ostensibly by a more robust photosynthetic capability and greater carbon reserves. The outbreak spanned a warming trend and conditions of anomalous aridity. Sustained water limitation during this period amplified the consequences of other factors, rendering even smaller trees vulnerable to colonization by insects. Our results are in agreement with prior research indicating that climate change has the potential to intensify bark beetle activity. However, forest outcomes will depend on complex cross-scale interactions between global climate trends and tree-level trait factors, as well as feedback effects associated with landscape patterns of stand structural diversity.

Authors/Creators:Korolyova, Nataliya and Buechling, Arne and Duraciova, Renata and Zabihi, Khodabakhsh and Turcani, Marek and Svoboda, Miroslav and Blaha, Jaromir and Swarts, Kelly and Polacek, Miroslav and Hradecky, Jaromir and Cervenka, Jaroslav and Nemcak, Pavel and Schlyter, Fredrik and Jakus, Rastislav
Title:The Last Trees Standing: Climate modulates tree survival factors during a prolonged bark beetle outbreak in Europe
Series Name/Journal:Agricultural and Forest Meteorology
Year of publishing :2022
Volume:322
Article number:109025
Number of Pages:14
Publisher:ELSEVIER
ISSN:0168-1923
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:Carbon, Climate change, Competition, Crown shading, Drought, Tree survival
URN:NBN:urn:nbn:se:slu:epsilon-p-118016
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118016
Additional ID:
Type of IDID
DOI10.1016/j.agrformet.2022.109025
Web of Science (WoS)000808575200006
ID Code:28601
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: SLUpub Connector
Deposited On:26 Aug 2022 11:27
Metadata Last Modified:26 Aug 2022 11:31

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