Results 101 to 110 of about 1,328 (196)

Normalized Projected Red & SWIR (NPRS): A New Vegetation Index for Forest Health Estimation and Its Application on Spruce Bark Beetle Attack Detection [PDF]

, 2020
Due to the ongoing global warming, European spruce bark beetles has become a serious threat to the spruce forests in Europe and caused serious environmental and economic issues. This study proposes a new vegetation index, Normalized Projected Red & SWIR (
Huo, Langning, Lindberg, Eva, Persson, Henrik   +2 more
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Know When You Are Too Many: Density-Dependent Release of Pheromones During Host Colonisation by the European Spruce Bark Beetle, Ips typographus (L.). [PDF]

J Chem Ecol, 2023
Frühbrodt T, Du B, Delb H, Burzlaff T, Kreuzwieser J, Biedermann PHW.   +5 more
europepmc   +1 more source

Emission of communication substances of the spruce bark beetle:

, 2013
Das emittierte Duftbouquet von durch den Buchdrucker befallenen Fichten variiert mit der Zeit. In dieser Arbeit wurde die Emission von VOCs während des gesamten Befallsverlaufes untersucht.
Lehmberg, Lars
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Data for: Climatic and management-related drivers of endemic European spruce bark beetle populations in boreal forests

<p>Climate change is already reducing carbon sequestration in Central European forests dramatically through extensive droughts and bark beetle outbreaks.
Gohli, Jostein
core   +1 more source

Effects of Ips typographus (L.) and sanitation logging disturbance on organic matter decomposition and carbon in the humus layer in boreal Picea abies (L.) H. Karst. stands

Annals of Forest Science
Key message Sanitation logging, aimed at mitigating the spread of European spruce bark beetle (Ips typographus L.) outbreaks in boreal stands, was associated with increased decomposition and loss of carbon from the humus layer, measured 10 years post ...
Maiju Kosunen, Päivi Lyytikäinen-Saarenmaa, Kristiina Karhu   +2 more
doaj   +1 more source

Using UAV-Based Photogrammetry and Hyperspectral Imaging for Mapping Bark Beetle Damage at Tree-Level

Remote Sensing, 2015
Low-cost, miniaturized hyperspectral imaging technology is becoming available for small unmanned aerial vehicle (UAV) platforms. This technology can be efficient in carrying out small-area inspections of anomalous reflectance characteristics of trees at ...
Roope Näsi, Eija Honkavaara, Päivi Lyytikäinen-Saarenmaa, Minna Blomqvist, Paula Litkey, Teemu Hakala, Niko Viljanen, Tuula Kantola, Topi Tanhuanpää, Markus Holopainen   +9 more
doaj   +1 more source

Ďatle ako konzumenti imág lykožrúta smrekového (Ips typographus) počas zrelostného žeru: prípadová štúdia / Woodpeckers as consumers of adult spruce bark beetles (Ips typographus) during maturation feeding: a case study [PDF]

Tichodroma, 2016
At least 10 woodpeckers of 4 species excavated bark beetle imagoes during their maturation feeding within a 0.25 ha forest spot with 6 Norway spruces trees (Picea abies) infested by the European spruce bark beetle (Ips typographus) near Zvolen (central ...
Štefan PAVLÍK
doaj  

Early detection of bark beetle infestation using UAV-borne multispectral imagery: a case study on the spruce forest in the Czech Republic

Frontiers in Forests and Global Change
Over the last decade, biotic disturbances caused by bark beetles have represented a serious environmental and economic issue in Central Europe. Great efforts are expended on the early detection and management of bark beetle infestation.
Tomáš Klouček, Roman Modlinger, Markéta Zikmundová, Markéta Zikmundová, Marlena Kycko, Jan Komárek   +5 more
doaj   +1 more source

Insights from Pheromone Trap Catches in the Northern Part of the Ips typographus Range

Insects
The European spruce bark beetle (Ips typographus) is the main pest of spruce in northwestern European Russia, particularly in the Leningrad Region. Its outbreaks occur quite frequently.
Andrey Selikhovkin, Nikita Mamaev, Maria Martirova, Nickolai Sedikhin   +3 more
doaj   +1 more source

Spruce bark beetles (Ips typographus) and protected forests : Do protected areas cause increased attacks of spruce bark beetle in production forests?

, 2021
  The aim of this report was to investigate whether the management of protected forests cause increased risk of infestation by the European spruce bark beetle (Ips typographus) in production forests, and whether the risk of infestation in production ...
Eriksson, Gustav
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