| Fungi Vectored by the Bark Beetle Ips typographus Following Hibernation Under the Bark of Standing Trees and in the Forest Litter Y Persson, R Vasaitis, B Långström, P Öhrn, K Ihrmark, J Stenlid Microbial ecology 58, 651-659, 2009 | 80 | 2009 |
| Seasonal flight patterns of Ips typographus in southern Sweden and thermal sums required for emergence P Öhrn, B Långström, Å Lindelöw, N Björklund Agricultural and Forest Entomology 16 (2), 147-157, 2014 | 48 | 2014 |
| The spruce bark beetle outbreak in Sweden following the January-storms in 2005 and 2007 B Långström, Å Lindelöw, M Schroeder, N Björklund, P Öhrn | 47 | 2009 |
| The Spruce Bark Beetle Ips typographus in a Changing Climate: Effects of Weather Conditions on the Biology of Ips typographus P Öhrn Department of Ecology, Swedish University of Agricultural Sciencies, 2012 | 26 | 2012 |
| Occurrence, performance and shoot damage of Tomicus piniperda in pine stands in southern Sweden after storm‐felling P Öhrn, N Björklund, B Långström Journal of Applied Entomology, 2018 | 13 | 2018 |
| Seasonal variation in Norway spruce response to inoculation with bark beetle-associated bluestain fungi one year after a severe drought P Öhrn, M Berlin, M Elfstrand, P Krokene, AM Jönsson Forest Ecology and Management 496, 119443, 2021 | 12 | 2021 |
| Two non-destructive techniques for determining the sex of live adult Hylobius warreni P Öhrn, M Klingenberg, G Hopkins, N Björklund The Canadian Entomologist 140 (5), 617-620, 2008 | 12 | 2008 |
| Seasonal flight patterns of the Spruce bark beetle (Ips typographus) in Sweden P Öhrn | 7 | 2012 |
| Different triggers, different stories: Bark-beetle infestation patterns after storm and drought-induced outbreaks S Kärvemo, L Huo, P Öhrn, E Lindberg, HJ Persson Forest Ecology and Management 545, 121255, 2023 | 5 | 2023 |
| Effekt på granbarkborren och dess fiender vid vinteravverkning av dödade granar J Weslien, M Schroeder, P Öhrn Skogforsk Arbetsrapport, 1110-2022, 2022 | 5 | 2022 |
| The spruce bark beetle Ips typographus in a changing climate P Öhrn Introductory research essay (Department of Ecology, SLU), 2012 | 4 | 2012 |
| Flight activity of the ambrosia beetles Trypodendron laaeve and Trypodendron lineatum in relation to temperature in southern Sweden P Öhrn, Å Lindelöw, B Långström | 4 | 2011 |
| Effects of sanitation logging in winter on the Eurasian spruce bark beetle and predatory long-legged flies J Weslien, P Öhrn, O Rosenberg, M Schroeder Forest Ecology and Management 554, 121665, 2024 | 1 | 2024 |
| Flight activity of the spruce bark beetle Ips typographus in southern Sweden P Öhrn, B Långström, N Björklund | 1 | 2009 |
| Effekten av metyljasmonat som skydd mot gnag av snytbagge (Hylobius abietis) på gran-och tallplantor P Öhrn SLU, Dept. of Entomology 2006 (1), 2006 | 1 | 2006 |
| Corrigendum to “Seasonal variation in Norway spruce response to inoculation with bark beetle-associated bluestain fungi one year after a severe drought”[For. Ecol. Manag. 496 … P Öhrn, M Berlin, M Elfstrand, P Krokene, AM Jönsson Forest Ecology and Management 558, 121819, 2024 | | 2024 |
| Changes in phenology of bark beetles in response to climate change P Öhrn Conference: BaltDendo 2016 At: Annas Tree School, Latvia, 2016 | | 2016 |
| Ta ut vindfällda granar i rätt tid P Öhrn, N Björklund, Å Lindelöw, B Långström Skogseko 27 (4), 2012 | | 2012 |
| Flight activity and development of the spruce bark beetle Ips typographus P Öhrn, B Långström | | 2009 |
| Mass trapping of the spruce bark beetle IPS typographus N Björklund, P Öhrn, B Långström ARRAY (0xb3639b0), 2008 | | 2008 |
Niklas BjörklundAssociate Professor, Dept of Ecology, Swedish University of Agricultural Sciences, SLU. NiklasVerified email at slu.se
