Results 1 to 10 of about 190 (148)

Polyploid spermatozoa in Pityogenes chalcographus and Ips typographus (Coleoptera: Scolytidae) [PDF]

European Journal of Entomology, 2004
Abnormal spermatogenesis in Pityogenes chalcographus (L.) and Ips typographus (L.) results in oversized spermatozoa in all the populations investigated. They can be identified by light microscopy and classified as 2n up to 16n polyploid.
Erwin FÜHRER
exaly   +4 more sources

Pleistocene climate cycling and host plant association shaped the demographic history of the bark beetle Pityogenes chalcographus [PDF]

Scientific Reports, 2018
AbstractHistorical climatic oscillations and co-evolutionary dependencies were key evolutionary drivers shaping the current population structure of numerous organisms. Here, we present a genome-wide study on the biogeography of the bark beetle Pityogenes chalcographus, a common and widespread insect in Eurasia.
Martin Schebeck, Hannes Schüler, Christian Stauffer   +2 more
exaly   +6 more sources

The Apennines as a cryptic Pleistocene refugium of the bark beetle <i>Pityogenes chalcographus</i> (Coleoptera: Curculionidae). [PDF]

Biol J Linn Soc Lond, 2019
The Apennine Mountains in Italy are an important biogeographical region and of particular interest in phylogeographical research, because they have been a refugium during Pleistocene glaciation events for numerous European species. We performed a genetic study on the Eurasian bark beetle Pityogenes chalcographus (Linnaeus, 1760), focusing on two ...
Schebeck M, Schuler H, Einramhof B, Avtzis DN, Dowle EJ, Faccoli M, Battisti A, Ragland GJ, Stauffer C, Bertheau C.   +9 more
europepmc   +5 more sources

The relationships between Pityogenes chalcographus and Nemosoma elongatum in clear-cuts with different types of management [PDF]

Plant Protection Science, 2020
Pityogenes chalcographus (Linnaeus, 1758) is a significant pest of young spruce stands up to the age of about 20 years. Predation can be a significant part of decreasing its population density.
Petr Zahradník, Marie Zahradníková
doaj   +2 more sources

Divergent Trends in Insect Disturbance Across Europe's Temperate and Boreal Forests. [PDF]

Glob Chang Biol
Across temperate and boreal Europe, tree mortality caused by insects has risen during the 21st century, yet interactions among insect species and their host trees are complex. While mortality from wood‐boring insects in conifers has increased, defoliation caused by multiple moth species has declined.
Hlásny T, Modlinger R, Gohli J, Seidl R, Krokene P, Bernardinelli I, Blaser S, Brazaitis G, Brazaitytė G, Brockerhoff EG, Csóka G, Dobor L, de Groot M, Duduman ML, Faccoli M, Georgieva M, Georgiev G, Grodzki W, Hartmann H, Hirka A, Hoch G, Jabłoński T, Jactel H, Jonsell M, Kolšek M, Melin M, Milanović S, Nețoiu C, Nieberg M, Økland B, Pernek M, Perunová M, Schafstall N, Schroeder M, Steyrer G, Vakula J, Wohlgemuth T, Ylioja T, Liebhold AM.   +38 more
europepmc   +2 more sources

Negative impacts of insecticide-treated methods and slot traps for trapping of Ips cembrae on nontarget invertebrates. [PDF]

Pest Manag Sci
The negative impacts of using insecticide‐treated methods and slot traps against Ips cembrae were evaluated. Negative impacts on predator species of bark beetles such as Thanasimus formicarius and Red‐Listed species were described. Abstract BACKGROUND Ips cembrae is serious forest pest of European larch (Larix decidua).
Jakub Š, Jiří F, Karolina R, Emanuel K.   +3 more
europepmc   +2 more sources

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

ZooKeys, 2010
Phylogenetic studies based on mtDNA become increasingly questioned because of potential pitfalls due to mitochondrial pseudgenes and mitochondrial selective sweeps.
Wolfgang Arthofer, Dimitrios Avtzis, Markus Riegler, Christian Stauffer   +3 more
doaj   +2 more sources

Reproductive Manipulators in the Bark Beetle Pityogenes chalcographus (Coleoptera: Curculionidae)-The Role of Cardinium, Rickettsia, Spiroplasma, and Wolbachia. [PDF]

J Insect Sci, 2018
Heritable bacterial endosymbionts can alter the biology of numerous arthropods. They can influence the reproductive outcome of infected hosts, thus affecting the ecology and evolution of various arthropod species. The spruce bark beetle Pityogenes chalcographus (L.) (Coleoptera: Curculionidae: Scolytinae) was reported to express partial, unidirectional
Schebeck M, Feldkirchner L, Marín B, Krumböck S, Schuler H, Stauffer C.   +5 more
europepmc   +4 more sources

Attractiveness of Picea pungens to the bark beetle species Ips amitinus (Eichh.) and Pityogenes chalcographus (L.) [PDF]

Journal of Forest Science, 2013
Only two cambioxylophagous species (Ips amitinus and Pityogenes chalcographus) were found on sections of Picea pungens and Picea abies that belong to economically important pests of Norway spruce. Representatives of the Isarthron sp.
E. Kula, R. Kajfosz, J. Polívka
doaj   +2 more sources

Natural-history traits suspected behind interspecific variations of bark- and wood-boring beetles in response to trap size and design [PDF]

Scientific Reports
The performances of traps used for pest monitoring are not well understood. Variable trap sizes and shapes make cross-comparisons difficult. We tested with four Scolytinae species (Coleoptera, Curculionidae) a set of traps of the same model (fan-traps ...
Emilio Caiti, Séverine Hasbroucq, Jean‑Claude Grégoire   +2 more
doaj   +2 more sources