View source for User:Niklas Björklund

Since January 2017 I work full-time at the Unit for risk assessment of alien plant pests at the Swedish University of Agricultural Sciences https://www.slu.se/en/cv/niklas-bjorklund/. 

My previous research focused on how forest insects respond to their environment and how knowledge about insect behaviours can be used to deal with insect pests. I have mainly been working with two species of tree-killing bark beetles (Dendroctonus ponderosae and Ips typographus), and two weevil species that cause damage to conifer seedlings (Hylobius abietis) and young conifer trees (Hylobius warreni).

Publications in international scientific journals and edited books:

Jeger M, Bragard C, Caffier D, Candresse T, Chatzivassiliou E, Dehnen-Schmutz K, Gilioli G, Grégoire J-C, Jaques Miret JA, MacLeod A, Niere B, Parnell S, Potting R, Rafoss T, Rossi V, Urek G, Van Bruggen A, Van Der Werf W, West J, Winter S, Bergeretti F, Björklund N, Mosbach-Schulz O, Vos S and Navajas Navarro M. (2017). Pest risk assessment of Eotetranychus lewisi for the EU territory. EFSA Journal;15(10):4878, 122 pp.

Zas, R., Björklund, N., Sampedro, L. et al. (2017) Genetic variation in resistance of Norway spruce seedlings to damage by the pine weevil Hylobius abietis. Tree Genetics & Genomes (2017) 13: 111.

Lundborg, L., Nordlander, G., Björklund, N., Nordenhem, H. & Borg-Karlson, A.-K. (2016). Methyl jasmonate-induced monoterpenes in Scots pine and Norway spruce tissues affect pine weevil orientation. [[Journal of Chemical Ecology (2016) 42, 1237-1246|Journal of Chemical Ecology 42(12), 1237-1246]]. 

Lundborg, A., Fedderwitz, F., Björklund, N., Nordlander, G. & Borg-Karlson, A.-K. (2016) Induced defenses change the chemical composition of pine seedlings and influence meal properties of the pine weevil Hylobius abietis. Phytochemistry 130: 99-105.

Maňák, V., Björklund, N., Lenoir, L. & Nordlander, G. (2017). Testing associational resistance against pine weevils mediated by Lasius ants attending conifer seedlings [[Journal of Applied Entomology (2017) 141, 411-416|Journal of Applied Entomology 141: 411–416]].

Maňák, V., Björklund, N., Lenoir, L., Knape, J. & Nordlander, G. (2016). Behavioural responses of pine weevils to non-consumptive interactions with red wood ants. Journal of Zoology, 299, 10-16. 

Björklund, N., Lindelöw, Å. & Schroeder, L.M. (2016). Erroneous conclusions about current geographical distribution and future expansion of forest insects in Northern Sweden: comments on Hof and Svahlin (2015). Scandinavian Journal of Forest Research, 31, 126-127. 

Fedderwitz, F., Nordlander, G., Ninkovic, V. & Björklund, N. (2016). Effects of jasmonate-induced resistance in conifer plants on the feeding behaviour of a bark-chewing insect, Hylobius abietis. [[Journal of Pest Science (2016) 89, 97-105|J. Pest Sci., 97-105]].

Fedderwitz, F., Björklund, N., Ninkovic, V. & Nordlander, G. (2015). The structure of feeding behavior in a phytophagous insect (Hylobius abietis). [[Entomologia Experimentalis et Applicata (2015) 155, 229-239|Entomol. Exp. Appl., 155, 229-239]].

Manak, V., Björklund, N., Lenoir, L. & Nordlander, G. (2015).The effect of red wood ant abundance on feeding damage by the pine weevil Hylobius abietis. [[Agricultural and Forest Entomology (2015) 17, 57-63|Agricultural and Forest Entomology 17, 57-63]].

Terenius, O., Björklund, N., Jaenson, T. G. T. & Nordlander, G. (2014). Premature proposal of the pine weevil as a vector of a human pathogen. Journal of Clinical Microbiology 52: 4115.

Mayer F., Björklund N., Wallén J., Långström B. & Cassel-Lundhagen A. (2014). Mitochondrial DNA haplotypes indicate two postglacial re-colonization routes of the spruce bark beetle Ips typographus through northern Europe to Scandinavia. [[Journal of Zoological Systematics and Evolutionary Research (2014) 52, 285-292|Journal of Zoological Systematics and Evolutionary Research 52, 285–292]].

Fedderwitz F., Björklund N., Ninkovic V. & Nordlander G. (2014). Diel behaviour and time budget of the adult pine weevil Hylobius abietis. Physiological Entomology, 39, 103 -110.

Öhrn, P., Långström, B., Lindelöw, Å., Björklund, N. (2014) Seasonal flight patterns of Ips typographus in southern Sweden and thermal sums required for emergence. [[Agricultural and Forest Entomology (2014) 16, 147-157|Agriculture and Forest Entomology, 16, 147 – 157]]. [FULL TEXT]
 
Zas R., Björklund N., Nordlander G., Cendán C., Hellqvist C. & Sampedro L. (2014). Exploiting jasmonate-induced responses for field protection of conifer seedlings against a major forest pest, Hylobius abietis. Forest Ecology and Management, 313, 212-223. [FULL TEXT] [AUDIO SLIDE] 

Manak, V., Nordenhem, H., Björklund, N., Lenoir, L. & Nordlander, G. (2013). Ants protect conifer seedlings from feeding damage by the pine weevil Hylobius abietis. [[Agricultural and Forest Entomology (2013) 15, 98-105|Agricultural and Forest Entomology 15: 98-105]].

Zhao T, Krokene P, Hu J, Christiansen E, Björklund N, et al. (2011) Induced terpene accumulation in Norway Spruce inhibits bark beetle colonization in a dose-dependent manner. PLoS ONE 6(10): e26649.

Cudmore, T.J., Björklund, N., Carroll, A.L. & Lindgren, B.S. (2010) Climate change and range expansion of an aggressive bark beetle: evidence of higher reproductive success in naïve host tree populations. [[Journal of Applied Ecology (2010) 47, 1036-1043|Journal of Applied Ecology 47, 1036–1043]]. 
This article was rated as one of the “Top-read articles” in 2010 with 5,450 downloads.
 
Zhao, T., Krokene, P., Björklund, N., Långström, B., Solheim, H. Christiansen, E. & Borg-Karlson, A.-K. (2010) The influence of Ceratocystis polonica inoculation and methyl jasmonate application on terpene chemistry of Norway spruce, Picea abies. Phytochemistry 71, 1332-1341. [FULL TEXT]

Klingenberg, M.D., Björklund, N. & Aukema, B.H. (2010) Seeing the forest through the trees: differential dispersal of Hylobius warreni Wood within modified forest habitats. [[Environmental Entomology (2010) 39, 898-906|Environmental Entomology 39, 898-906]].  [FULL TEXT]    

Björklund, N & Lindgren, B.S. (2010) Basal area – a measure with limited ecological significance for phloem feeding insects. Chapter 6, pp. 151-156 In Insect Habitats: Characteristics, Diversity and Management. Edited by Editors: Edina L. Harris and Newell E. Davies, Nova Science Publishers, Inc., Hauppauge, New York, USA, ISBN: 978-1-60876-396-2. [BOOK ABSTRACT] [CHAPTER ABSTRACT]

Björklund, N. (2009) Non-destructive tree trunk funnel trap for capturing Hylobius warreni (Coleoptera: Curculionidae) ascending stems of trees. [[The Canadian Entomologist (2009) 141, 422-424|The Canadian Entomologist 141, 422-424]]. [FULL TEXT]  

Björklund, N. & Lindgren, B.S. (2009) Diameter of lodgepole pine and mortality caused by the mountain pine beetle: factors that influence their relationship and applicability for susceptibility rating. [[Canadian Journal of Forest Research - Revue Canadienne de Recherche Forestière (2009) 39, 908-916|Canadian Journal of Forest Research 39, 908-916]]. [FULL TEXT] 

Björklund, N., B.S. Lindgren, T.L. Shore, & T. Cudmore (2009) Can predicted mountain pine beetle net production be used to improve stand prioritization for management? Forest Ecology and Management 257, 233–237. [FULL TEXT] 

Öhrn, P., Klingenberg, M., Hopkins, G. & Björklund, N. (2008) Two non-destructive techniques for determining the sex of live adult Hylobius warreni. [[The Canadian Entomologist (2008) 140, 617-620|The Canadian Entomologist 140, 617-620]]. [FULL TEXT] 

Björklund, N. (2008) Cues for shelter use in a phytophagous insect. [[Journal of Insect Behavior (2008) 21, 9-23|Journal of Insect Behaviour 21, 9-23]]. [FULL TEXT]  

Nordlander, G., Bylund, H. & Björklund, N. (2005) Soil type and microtopography influencing feeding above and below ground by the pine weevil Hylobius abietis. [[Agricultural and Forest Entomology (2005) 7, 107-113|Agricultural and Forest Entomology 7, 107-113]].

Björklund, N., Nordlander, G. & Bylund, H. (2005) Olfactory and visual stimuli used in orientation to conifer seedlings by the pine weevil Hylobius abietis. Physiological Entomology 30, 225-231. [FULL TEXT]  

Björklund, N., Nordlander, G. & Bylund, H. (2003) Host-plant acceptance on mineral soil and humus by the pine weevil Hylobius abietis (L.). [[Agricultural and Forest Entomology (2003) 5, 61-66|Agricultural and Forest Entomology 5, 61-66]]. [FULL TEXT] 

Rintamäki, P.T., Höglund, J., Karvonen, E., Alatalo, R.V., Björklund, N., Lundberg, A.,  Rätti, O. & Vouti, J. (2000) Combs and sexual selection in black grouse (Tetrao tetrix). Behavioral Ecology, 11, 465-471. [FULL TEXT]
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