The recent northward expansion of Lymantria monacha in relation to realised changes in temperatures of different seasons

Fält-Nardmann, Julia; Tikkanen, Olli‐Pekka; Ruohomäki, Kai; Otto, L A; Leinonen, Reima; Pöyry, Juha; Saikkonen, Kari; Neuvonen, Seppo

doi:10.1016/j.foreco.2018.05.053

Cited by 29 publications

(29 citation statements)

References 37 publications

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“…We found a fairly constant expansion rate of approximately 15.2 km/year, which is close to the estimate of 20 km/year based on the period before 1980 in Finland (Koponen, ). The expansion rate of I. amitinus is of the same magnitude as that found for another northward‐expanding species in Finland, Lymantria monacha (L.), although, for this lymantrid species, the rate of spread is nonlinear, showing a marked increased expansion rate from the 1990s (Fält‐Nardmann et al , ). Because the winter minimum temperatures in southern Finland were significantly higher after 1990 than in the period before, this increased expansion rate is attributed to higher survival of the overwintering eggs of L. monacha that are laid in bark crevices (Fält‐Nardmann et al , ).…”

Section: Discussionsupporting

confidence: 54%

“…The expansion rate of I. amitinus is of the same magnitude as that found for another northward‐expanding species in Finland, Lymantria monacha (L.), although, for this lymantrid species, the rate of spread is nonlinear, showing a marked increased expansion rate from the 1990s (Fält‐Nardmann et al , ). Because the winter minimum temperatures in southern Finland were significantly higher after 1990 than in the period before, this increased expansion rate is attributed to higher survival of the overwintering eggs of L. monacha that are laid in bark crevices (Fält‐Nardmann et al , ). However, the responses of various insect species to climate change are complex and vary depending on ecological peculiarities of species and regions (Musolin & Saulich, ).…”

Section: Discussionsupporting

confidence: 54%

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Range expansion of the small spruce bark beetle Ips amitinus: a newcomer in northern Europe

Økland

Flø²,

Schroeder

et al. 2019

Agri and Forest Entomology

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Section: Discussionsupporting

confidence: 54%

Section: Discussionsupporting

confidence: 54%

Range expansion of the small spruce bark beetle Ips amitinus: a newcomer in northern Europe

Økland

Flø²,

Schroeder

et al. 2019

Agri and Forest Entomology

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“…Changes in abiotic factors also affect physiology of other forest organisms such as herbivores and their activity, feeding behaviour and distribution (e.g. Robinson et al 2012;Faelt-Nardmann et al 2018) and their capacity to induce biotic stress on plants (Holopainen and Gershenzon 2010). Plant BVOC emissions are directly controlled by several abiotic factors including light level and UV radiation, water availability, carbon dioxide (CO 2 ) concentration and phytotoxic tropospheric ozone (O 3 ) (Peñuelas and Staudt 2010).…”

Section: Bvocs In the Interactions Of Forest Organismsmentioning

confidence: 99%

Unravelling the functions of biogenic volatiles in boreal and temperate forest ecosystems

et al. 2019

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Living trees are the main source of biogenic volatile organic compounds (BVOCs) in forest ecosystems, but substantial emissions originate from leaf and wood litter, the rhizosphere and from microorganisms. This review focuses on temperate and boreal forest ecosystems and the roles of BVOCs in ecosystem function, from the leaf to the forest canopy and from the forest soil to the atmosphere level. Moreover, emphasis is given to the question of how BVOCs will help forests adapt to environmental stress, particularly biotic stress related to climate change. Trees use their vascular system and emissions of BVOCs in internal communication, but emitted BVOCs have extended the communication to tree population and whole community levels and beyond. Future forestry practices should consider the importance of BVOCs in attraction and repulsion of attacking bark beetles, but also take an advantage of herbivore-induced BVOCs to improve the efficiency of natural enemies of herbivores. BVOCs are extensively involved in ecosystem services provided by forests including the positive effects on human health. BVOCs have a key role in ozone formation but also in ozone quenching. Oxidation products form secondary organic aerosols that disperse sunlight deeper into the forest canopy, and affect cloud formation and ultimately the climate. We also discuss the technical side of reliable BVOC sampling of forest trees for future interdisciplinary studies that should bridge the gaps between the forest sciences, health sciences, chemical ecology, conservation biology, tree physiology and atmospheric science.

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“…The present study also provides evidence for mixed 253 directionality of responses as well as potential explanations thereof based on major 254mechanisms. This set of complex but predictable outcomes and regional 255 heterogeneity of responses is challenging for management but cannot be ignored as 256 it is the emerging consensus in this and other studies 11,18 . 257 2.…”

mentioning

confidence: 99%

“…Clearly, detailed knowledge 75 of insect pests' current and likely responses to ongoing climate change is essential to 76 counter changing risks. Widespread ecological damage through range expansions and 77 increasing frequencies of outbreaks are increasingly reported [13][14][15][16] , but there is a severe 78 deficiency in comprehensive information on insect pests' responses [17][18][19] . 79 80 Climate change and insect pest biology.…”

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confidence: 99%

Complex responses of global insect pests to climate change

Lehmann

Ammunét

Barton

et al. 2018

Preprint

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AbstractInsect pests strongly affect the productivity and profitability of agriculture and forestry. Despite the well-known sensitivity of insects to abiotic effects such as temperature, their potential responses to ongoing climate change remain unclear. Here we compile and review documented climate change responses of 31 of the globally most impactful phytophagous insect pests, focussing on species for which long-term, high-quality data are available. Most of the selected species show at least one response affecting their severity as pests, including changes in geographic range, population dynamics, life-history traits, and/or trophic interactions. Of the studied pests, 41% only show responses that are linked to increased pest severity, 4% only show responses of decreased severity, whereas importantly 55%, the majority of studied pests, show mixed responses including both increased and decreased severity under ongoing climate change. Variability in impact is further supported by a thermal sensitivity analysis showing little benefit of climate warming in relation to the optimal developmental temperatures for the majority of these pests under both current climate and future projections. Overall the results show that calculating the net effect of climate change on phytophagous insect pest impact is far from straightforward. The documented variation in responses, e.g. between agricultural and forest pests, indicates that efforts to mitigate undesirable climate change effects must target individual species, taking into account the complex ecological and evolutionary mechanisms underlying their responses.

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The recent northward expansion of Lymantria monacha in relation to realised changes in temperatures of different seasons

Cited by 29 publications

References 37 publications

Range expansion of the small spruce bark beetle Ips amitinus: a newcomer in northern Europe

Range expansion of the small spruce bark beetle Ips amitinus: a newcomer in northern Europe

Unravelling the functions of biogenic volatiles in boreal and temperate forest ecosystems

Complex responses of global insect pests to climate change

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