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CABI Book Chapter

Climate change and insect pests.

Book cover for Climate change and insect pests.

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Chapter 14 (Page no: 248)

Effects of new forest management on insect damage risk in a changing climate.

Recent findings suggest that damage by forest insect pests will increase as a consequence of climate warming. Here, we ask whether changes in forest management can alter and possibly mitigate the increased risk of damage and outbreaks. We focus mainly on conditions in northern Europe, particularly Sweden, but conclusions should be valid for northern temperate forests. Three types of insect pests are considered; the regeneration pest, Hylobius abietis (pine weevil), defoliators and the bark beetle, Ips typographus. We compare the expected effect of new management methods with the presently predominant method of even-aged stands, which are thinned two to three times before final harvest by clear-felling. Continuous cover forestry (CCF) is the method most different from the present practice. CCF would lead to a drastic decrease in pine weevils, and also less damage by defoliators, but this latter prediction is uncertain. For the bark beetle, the uncertainty is even greater. In mixed forests, all three insect pest types are expected to become less of a problem. Putative mechanisms involve more abundant and diverse natural enemy fauna, and a more scattered distribution of food resources. A shorter rotation period (including no thinning) is expected to increase the damage by pine weevils, as it will result in more abundant breeding material. For defoliators, it is difficult to foresee the effects. A shorter rotation period will decrease the risk of bark beetle outbreaks, as storm-fellings will be less frequent and young stands more common. The effects of exotic tree species and clonal forestry are complex and will depend on several factors. A general conclusion is that forest management may be used to mitigate the anticipated risk of insect pest damage as a consequence of climate warming, but more research is required to certify these indications.

Other chapters from this book

Chapter: 1 (Page no: 1) Climate change and insect pest distribution range. Author(s): Battisti, A. Larsson, S.
Chapter: 2 (Page no: 16) Species distribution modelling in predicting response to climate change. Author(s): Hill, M. P. Thomson, L. J.
Chapter: 3 (Page no: 38) Adaptive responses of plants to insect herbivores under climate change. Author(s): Rasmann, S. Pellissier, L.
Chapter: 4 (Page no: 54) Boreal woody species resistance affected by climate change. Author(s): Julkunen-Tiitto, R. Nybakken, L. Randriamanana, T. Virjamo, V.
Chapter: 5 (Page no: 74) Effects of climate change on the interactions between insect pests and their natural enemies. Author(s): Kalinkat, G. Rall, B. C.
Chapter: 6 (Page no: 92) Physiological variation of insects in agricultural landscapes: potential impacts of climate change. Author(s): Terblanche, J. S. Karsten, M. Mitchell, K. A. Barton, M. G. Gibert, P.
Chapter: 7 (Page no: 119) Climate change and biological control in agricultural systems: principles and examples from North America. Author(s): Eigenbrode, S. D. Davis, T. S. Crowder, D. W.
Chapter: 8 (Page no: 136) Climate change effects on agricultural insect pests in Europe. Author(s): Lindström, L. Lehmann, P.
Chapter: 9 (Page no: 154) Abiotic factors, climatic variability and forest insect pests. Author(s): Neuvonen, S. Virtanen, T.
Chapter: 10 (Page no: 173) Responses of tree-killing bark beetles to a changing climate. Author(s): Raffa, K. F. Aukema, B. H. Bentz, B. J. Carroll, A. L. Hicke, J. A. Kolb, T. E.
Chapter: 11 (Page no: 202) The Eurasian spruce bark beetle: the role of climate. Author(s): Økland, B. Netherer, S. Marini, L.
Chapter: 12 (Page no: 220) Pine wood nematode, pine wilt disease, vector beetle and pine tree: how a multiplayer system could reply to climate change. Author(s): Roques, A. Zhao LiLin Sun JiangHua Robinet, C.
Chapter: 13 (Page no: 235) Northern geometrids and climate change: from abiotic factors to trophic interactions. Author(s): Ammunét, T. Bylund, H. Jepsen, J. U.

Chapter details

  • Author Affiliation
  • Department of Ecology, Swedish University of Agricultural Sciences, P.O. Box 7044, SE-75007 Uppsala, Sweden.
  • Year of Publication
  • 2015
  • ISBN
  • 9781780643786
  • Record Number
  • 20153325846