Long-term effects of climate and land-use change on larch budmoth outbreaks in the French Alps

Battipaglia, Giovanna; Büntgen, Ulf; McCloskey, Shane P. J.; Blarquez, Olivier; Denis, Nicole; Paradis, Laure; Brossier, Benoît; Fournier, Thomas; Carcaillet, Christopher

doi:10.3354/cr01251

Cited by 26 publications

(40 citation statements)

References 49 publications

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“…The cyclic nature of LBM outbreaks is well known in the core habitat of its host species, European larch (Baltensweiler, ; Baltensweiler & Rubli, ; Bjørnstad et al ., ; Johnson et al ., , ; Price et al ., ; Esper et al ., ; Baltensweiler et al ., ; Büntgen et al ., ; Battipaglia et al ., ). All of these studies focus on the main LBM outbreak region, even though the range of larch extends well beyond these well‐known outbreak areas (Fig.…”

Section: Discussionmentioning

confidence: 97%

“…This agrees with the general space‐time pattern of outbreaks across the Alps from West to East (Bjørnstad et al ., ; Johnson et al ., ; Price et al ., ). Nonetheless, the results derived from the SEA also illustrate how radial growth responds to LBM outbreaks: the W‐Alps chronologies respond with a clear growth decline during the year of outbreak and the growth suppression persists for up to 3 years after the event (Baltensweiler et al ., ; Battipaglia et al ., ). The N‐Alps chronologies do not show such a consistent pattern, suggesting that LBM outbreaks occur sporadically (and with less impact) or are completely absent.…”

Section: Discussionmentioning

confidence: 97%

“…Battipaglia et al . () related the late 20th Century decline of LBM cycles to land‐use changes in the French Alps. The present study suggests that forest composition (i.e.…”

Section: Discussionmentioning

confidence: 99%

“…Finally, the SEA was applied to the W‐Alps larch chronologies using the respective events representative of this region in 1900, 1908, 1915, 1923, 1929, 1937, 1945, 1954, 1963, 1972 and 1981 (Baltensweiler & Rubli, ; Esper et al ., ) (see Supporting Information, Fig. S1) to evaluate the typical post‐LBM growth pattern in the infestation core region, which typically shows a strong growth suppression during LBM events and up to 3 years after the outbreaks (Baltensweiler et al ., ; Battipaglia et al ., ).…”

Section: Methodsmentioning

confidence: 97%

“…Battipaglia et al . () argued that land‐use changes and forest composition might affect the LBM system. Changes in climate and host‐plant availability may profoundly affect the success of insect herbivores (Bale et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Effects of host abundance on larch budmoth outbreaks in theEuropeanAlps

Hartl

Esper

Liebhold

et al. 2017

Agri and Forest Entomology

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1 Outbreaks of the larch budmoth (LBM) in the European Alps are among the most documented population cycles and their historical occurrence has been reconstructed over 1200 years. 2 Causes and consequences of cyclic LBM outbreaks are poorly understood and little is known about populations near the margin of the host's distribution range. 3 In the present study, we quantify historical LBM outbreaks and associated growth reductions in host trees (European larch). Tree-ring data collected from 18 sites between approximately 500 and 1700 m a.s.l. in the Northern pre-Alps are compared with data from the Western Alps and Tatra Mountains, as well as with nonhost Norway spruce. 4 Highly synchronized host and nonhost growth in the Northern pre-Alps shows that periodic LBM outbreaks are largely absent near the distributional limit of larch. By contrast, growth patterns in the Western Alps LBM core region are indicative of LBM events. Although climatic conditions in the Northern pre-Alps and Tatra Mountains would allow LBM outbreaks, low host plant abundance is likely the key driver for the absence of cyclic outbreaks in these regions. 5 The results obtained in the present study suggest that, in addition to the climatic conditions, host-species abundance is critically important for the occurrence of periodic LBM outbreaks and the determination of the respective outbreak range.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

“…Battipaglia et al . () related the late 20th Century decline of LBM cycles to land‐use changes in the French Alps. The present study suggests that forest composition (i.e.…”

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Effects of host abundance on larch budmoth outbreaks in theEuropeanAlps

Hartl

Esper

Liebhold

et al. 2017

Agri and Forest Entomology

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Return of the moth: rethinking the effect of climate on insect outbreaks

et al. 2020

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The sudden interruption of recurring larch budmoth (LBM; Zeiraphera diniana or griseana Gn.) outbreaks across the European Alps after 1982 was surprising, because populations had regularly oscillated every 8-9 years for the past 1200 years or more. Although ecophysiological evidence was limited and underlying processes remained uncertain, climate change has been indicated as a possible driver of this disruption. An unexpected, recent return of LBM population peaks in 2017 and 2018 provides insight into this insect's climate sensitivity. Here, we combine meteorological and dendrochronological data to explore the influence of temperature variation and atmospheric circulation on cyclic LBM outbreaks since the early 1950s. Anomalous cold European winters, associated with a persistent negative phase of the North Atlantic Oscillation, coincide with four consecutive epidemics between 1953 and 1982, and any of three warming-induced mechanisms could explain the system's failure thereafter: (1) high egg mortality, (2) asynchrony between egg hatch and foliage growth, and (3) upward shifts of outbreak epicentres. In demonstrating that LBM populations continued to oscillate every 8-9 years at sub-outbreak levels, this study emphasizes the relevance of winter temperatures on trophic interactions between insects and their host trees, as well as the importance of separating natural from anthropogenic climate forcing on population behaviour.

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A Discrete-Time Model for Consumer–Resource Interaction with Stability, Bifurcation and Chaos Control

Din

Khan

2021

Qual. Theory Dyn. Syst.

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Long-term effects of climate and land-use change on larch budmoth outbreaks in the French Alps

Cited by 26 publications

References 49 publications

Effects of host abundance on larch budmoth outbreaks in theEuropeanAlps

Effects of host abundance on larch budmoth outbreaks in theEuropeanAlps

Return of the moth: rethinking the effect of climate on insect outbreaks

A Discrete-Time Model for Consumer–Resource Interaction with Stability, Bifurcation and Chaos Control

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