Results 51 to 60 of about 5,054 (217)

Host desiccation and interspecific competition limit reproductive performance of a bark beetle

Agricultural and Forest Entomology, EarlyView.
At high and moderate phloem moisture levels, Polygraphus proximus reproductive success was suppressed by sympatric species density. At low phloem moisture, P. proximus reproductive success was suppressed by the low phloem moisture regardless of the Cryphalus laricis hole density. Conspecific density (i.e., attack density of P.
Mai Aochi, Etsuro Takagi
wiley   +1 more source

Ophiostomatoid fungi associated with Ips typographus (L.) on Picea abies [(L.) H. Karst.] and Pinus sylvestris L. in north-eastern Poland

Acta Societatis Botanicorum Poloniae, 2011
This study dealt with the species distribution and frequency of ophiostomatoid fungi associated with the bark beetle Ips typographus on Norway spruce and Scots pine in north-eastern Poland.
Robert Jankowiak, Jacek Hilszczański
doaj   +1 more source

From glacial echoes to timber pathways: Climatic–historical drivers and timber‐trade influence on the phylogeography of Ips sexdentatus in the Basque Country

Agricultural and Forest Entomology, EarlyView.
Ips sexdentatus is expanding across southern Europe, attacking multiple Pinus species and showing the ability to colonize trees at early stages of decline. Genetic analysis of 668 individuals revealed 106 haplotypes, with Iberian populations as diversity hotspots, reflecting long‐term refugial persistence alongside more recent demographic expansion ...
Dimitrios N. Avtzis, Nebai Mesanza, Aitor Saez de Zerain, Diego Llamazares, Eugenia Iturritxa   +4 more
wiley   +1 more source

Training and utilizing scent detection dogs in the identification of the European spruce bark beetle Ips typographus

Silva Fennica
The European spruce bark beetle (Ips typographus L.) thrives in weakened mature spruce (Picea abies (L.) H. Karst.) stands, causing massive destruction and becoming more abundant in Europe since the late 2010s.
Reetta Kangaslampi, Olli-Pekka Tikkanen
doaj   +1 more source

Impacts Of The Invasive FourEyed Fir Bark Beetle (Polygraphus Proximus Blandf.) On Siberian Fir (Abies Sibirica Ledeb.) Forests In Southern Siberia

Geography, Environment, Sustainability, 2019
The emergence and spread of non-native invasive forest insects represent a major potential threat to global biodiversity. The present study examines the current invasion of the far eastern four-eyed fir bark beetle Polygraphus proximus Blandf.
Nikita M. Debkov, Aleksey A. Aleinikov, Alexander Gradel, Anatoly Yu. Bocharov, Nina V. Klimova, Gennady I. Pudzha   +5 more
doaj   +1 more source

Anatomical and Histological Structures of the Male Reproductive System of Chalcophora mariana (Linnaeus, 1758) (Coleoptera: Buprestidae): Light and Scanning Electron Microscopy Study

Acta Zoologica, EarlyView.
ABSTRACT This study presents the first detailed morphological analysis of the male reproductive system of Chalcophora mariana (Linnaeus, 1758) using stereo microscopy, light microscopy, and scanning electron microscopy. The male reproductive system of C.
Hicret Arslan, Selami Candan
wiley   +1 more source

Early Detection of Bark Beetle Green Attack Using TerraSAR-X and RapidEye Data

Remote Sensing, 2013
Bark beetles cause widespread damages in the coniferous-dominated forests of central Europe and North America. In the future, areas affected by bark beetles may further increase due to climate change. However, the early detection of the bark beetle green
Gerald Kändler, Johannes Breidenbach, Sonia M. Ortiz   +2 more
doaj   +1 more source

Anatomical and Histological Descriptions of the Male Reproductive System of the Alfalfa Weevil of Hypera postica (Gyllenhal, 1813) (Coleoptera: Curculionidae) Using Light and Scanning Electron Microscopies

Acta Zoologica, EarlyView.
ABSTRACT Features of the reproductive organs, such as the number of testicular follicles, testis colour and the morphology of the glands, can be used as systematic characters. For this purpose, this paper was the first description of the male reproductive system anatomy and histology of Hypera postica (Gyllenhal, 1813) (Coleoptera: Curculionidae), a ...
Nurcan Özyurt Koçakoğlu, Selami Candan, Hicret Arslan, Mustafa Güllü   +3 more
wiley   +1 more source

Kernel-Based Early Detection of Forest Bark Beetle Attack Using Vegetation Indices Time Series of Sentinel-2

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The European spruce bark beetle (Ips typographus L.) is a biotic disturbance that devastates forest environmental services, and its activities are exacerbated due to climate change. Accordingly, researchers seek workflows using remote sensing imagery for
Sadegh Jamali, Per-Ola Olsson, Mitro Muller, Arsalan Ghorbanian   +3 more
doaj   +1 more source

Histomorphology Structure of the Gastric Caecum, Midgut, and Malpighian Tubules in Adult Flatheaded Pine Borer Chalcophora mariana (Linnaeus, 1758) (Coleoptera: Buprestidae)

Acta Zoologica, EarlyView.
ABSTRACT The pine weevil is one of the largest species in the jewel beetle (Buprestidae) family found in Central Europe and Turkey. Chalcophora mariana is generally considered a secondary guest and primarily develops in weakened, decaying, or recently dead pine trees.
Hicret Arslan, Selami Candan
wiley   +1 more source