Results 71 to 80 of about 1,807 (223)

Automated Optimal Motion Sequence of a 9-Bar Linkage

open access: yesFrontiers in Built Environment, 2020
Automated optimization-driven analyses may lead to an emersion of innovative design approaches, while investigating the potentials in design, analysis and control of high-performance engineering structures, and adaptive architecture. In the present study,
Maria Matheou   +3 more
doaj   +1 more source

USING TRAP TREES FOR MONITORING AND CONTROL OF BARK BEETLE PITYOGENES CHALCOGRAPHUS (L.) ON MOUNTAIN ZVIJEZDA

open access: yesRadovi Šumarskog fakulteta Univerziteta u Sarajevu, 2016
UDK: 595.768.1:582.475(234.422 Zvijezda) Bark beetles are the most important pests of the coniferous forests. Although they are considered to be a secondary pest, they are becoming the primary pests that attack healthy trees. One of the important spruce
N. Demirovic   +3 more
semanticscholar   +1 more source

Bark beetles on logging residues of European larch: Effects of shading and diameter of logging residues on infestation density

open access: yesAgricultural and Forest Entomology, Volume 26, Issue 4, Page 457-469, November 2024.
Abstract Ips cembrae, an important pest of European larch (Larix decidua), has caused local outbreaks in the last two decades and is becoming increasingly important as the proportion of European larch in forests increases. In 2021–2023, larch logs and piles of branches were placed into shaded forest and sunlit areas every month to study bark beetle ...
Jakub Špoula, Emanuel Kula
wiley   +1 more source

Cambioxylophagous fauna developing on logging residues of blue spruce (Picea pungens Engelmann)

open access: yesJournal of Forest Science, 2011
Cutting down 20- to 30-years-old trees of blue spruce (Picea pungens Engelm.) (October, May) and cross-cutting them to sections of different volume (0.5-75 dm3) under conditions of half-shade × open area resulted in a potential food offer for ...
E. Kula, R. Kajfosz, J. Polívka
doaj   +1 more source

Molekulare Ökologie in der Forstentomologie [PDF]

open access: yes, 2008
Nach der Wiederentdeckung der Mendelschen Regeln Anfang des 20. Jahrhunderts waren es unter anderem Theodosius Dobzhansky und Ernst Mayr, die Evolution erstmals durch die Analyse von Populationen untersuchten.
Arthofer, Wolfgang   +2 more
core  

Debarking harvesters simultaneously combat the European spruce bark beetle (Ips typographus) and conserve non‐target beetle diversity

open access: yesEcological Solutions and Evidence, Volume 5, Issue 3, July–September 2024.
The European Spruce Bark Beetle can be effectively reduced by using the debarking head for harvesters and the bark gouging device for motor manual bark treatment. The new methods do not reduce non‐target beetle species and do not rely on transport capacities for successful pest control.
Sebastian Zarges   +5 more
wiley   +1 more source

Host tree and insect genetic diversity on the borderline of natural distribution: a case study of Picea abies and Pityogenes chalcographus (Coleoptera, Scolytinae) in Greece

open access: yesSilva Fennica, 2011
Picea abies (L.) Karst. and Pityogenes chalcographus constitute a commonly observed host tree–insect association in Eurasia, with the natural distribution of the bark beetle overlapping that of Norway spruce.
Avtzis, D., Aravanopoulos, F.
doaj   +1 more source

Genetic variation reveals complex population structuring of Tomicus piniperda L. (Coleoptera, Scolytidae) in the UK: Implications for management of this important pest

open access: yesAgricultural and Forest Entomology, Volume 26, Issue 2, Page 249-261, May 2024.
Abstract Tomicus piniperda is a common pest of pine trees responsible for significant economic damage. Although the impact of T. piniperda on forestry is likely to increase in the future due to climate change, little is known about its dispersal within the United Kingdom (UK) or between continental Europe and the UK.
Sophie de Becquevort   +3 more
wiley   +1 more source

Mitochondrial phylogenies in the light of pseudogenes and Wolbachia: re-assessment of a bark beetle dataset

open access: yesZooKeys, 2010
Phylogenetic studies based on mtDNA become increasingly questioned because of potential pitfalls due to mitochondrial pseudgenes and mitochondrial selective sweeps.
Wolfgang Arthofer   +3 more
doaj   +1 more source

The mites (Acari) associated with bark beetles in the Koli National Park in Finland [PDF]

open access: yes, 2013
International audienceThirty-three taxa associated with Ips typographus were identified, of which fifteen species were phoretic. The most abundant species were Insectolaelaps quadrisetus (Mesostigmata), Siculobata lentonycha (Oribata), Diapterobates ...
Moser, J.C., Penttinen, R., Viiri, H.
core   +3 more sources

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