A5080735986- Forest Insect Ecology and Management
- Insect and Pesticide Research
- Forest ecology and management
- Entomological Studies and Ecology
- Fire effects on ecosystems
- Entomopathogenic Microorganisms in Pest Control
- Insect-Plant Interactions and Control
- Forest Ecology and Biodiversity Studies
- Plant and animal studies
- Insect symbiosis and bacterial influences
- Insect and Arachnid Ecology and Behavior
- Botany and Plant Ecology Studies
- Mycorrhizal Fungi and Plant Interactions
- Remote Sensing in Agriculture
- Tree Root and Stability Studies
- Ecology and Vegetation Dynamics Studies
- Insect Resistance and Genetics
- Plant Pathogens and Fungal Diseases
- Animal Ecology and Behavior Studies
- Remote Sensing and LiDAR Applications
- Animal Behavior and Reproduction
- Lepidoptera: Biology and Taxonomy
- Seedling growth and survival studies
- Layered Double Hydroxides Synthesis and Applications
- Plant and Fungal Interactions Research
Czech University of Life Sciences Prague
2007-2024
Forestry and Game Management Research Institute
2012-2018
Czech Academy of Sciences, Institute of Botany
2018
Climate change-related acute or long-term drought stress can weaken forest ecosystems and result in widespread bark beetle infestations. Eurasian spruce ( Ips typographus L.) infestations have been occurring Norway [ Picea abies (L.) Karst.]-dominated forests central Europe including the Czechia. These appear regularly, especially homogeneous stands, impact varies with climate-induced water conditions. The removal of infected trees before beetles leave is an important step pest management....
Bark beetles are destructive forest pests considering their remarkable contribution to depletion. Their association with fungi is useful against the challenges of survival on noxious and nutritionally limited substrate, i.e., conifer tissues. Fungal symbionts help in nutrient acquisition detoxification toxic tree secondary metabolites. Although gut prime location for food digestion detoxification, information available gut-mycobiome bark beetles. The present study screened gut-mycobiont from...
Abstract Bark beetles often serve as forest damaging agents, causing landscape-level mortality. Understanding the biology and ecology of are important for both, gathering knowledge about insects protection. Knowledge bark beetle gut-associated bacteria is one crucial yet surprisingly neglected areas research with European tree-killing beetles. Hence, in this study, we survey gut bacteriome from five Ips non- Scolytinae. Results reveal 69 core bacterial genera among that may perform conserved...
Tree-killing bark beetles require rapid management, such as anti-attractants, to stop the enlargement of attack hot-spots. We tested two newer anti-attractant blends, both without verbenone and one with addition trans-4-thujanol, in traps against standard pheromone baits for inhibition catch. Both blends provided effective catch reduction (>95%). also these tree protection experiments years. had experimental plots a center an protected zone, no traditional control area, but we followed...
Bark beetle outbreaks have become increasingly prevalent and intense, causing widespread tree mortality altering forest ecosystems globally. In this study, we investigate the dynamics between root systems of Norway spruce ectomycorrhizal fungi in aftermath bark beetle-induced mortality, focusing on changes density vital non-vital mycorrhizal tips. The survey was carried out Bohemian Switzerland National Park, Czechia. sampling sites were chosen based polygon layers delineating individual...
Eurasian spruce bark beetles (Ips typographus) use both attractant and anti-attractant semiochemicals to find suitable mature host trees. Trans-4-thujanol is abundant in young, unsuitable Electrophysiological studies have demonstrated its high activity levels, but field data are lacking.Enantioselective GC-MS analysis showed that only (1R,4S)-(+)-trans-4-thujanol was present Norway volatiles. In a factorial design field-trapping experiment, trans-4-thujanol alone not attractive Ips...
Ips typographus L. (Coleoptera: Curculionidae) is one of the serious pests causing mass destruction European spruce forests, with a substantial economic impact. Symbiotic microbes associated bark beetles often play definitive role in accomplishing their physiological and ecological functions by detoxifying chemicals, inhibiting pathogens, offering nutrients. Although few research works explored I. , much yet to be studied understand adaptive ecology as holobionts comprehensively. The present...
The aim of this study was to develop methods for constructing a simple model describing tree mortality caused by Ips typographus L. using minimum number variables. We developed areas spanning natural mountain forests in the Tatra National Park (Slovakia) and Šumava (Czech Republic), managed Czech located four varying environmental conditions. describes time series dynamics I.typographus two submodels: long-term submodel, short-term autoregressive distributed lag(ADL) incorporating year delay...
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 early detection management of beetle infestation. Our study analyses time series UAV-borne multispectral imagery 250-ha forest Vysočina region Czech Republic. The site represents typical European spruce with routine silvicultural management. data was acquired three times during vegetation period, specifically (a) before...
A field study was conducted to investigate the effect of forest-edge cutting on transpiration rates individual Picea abies (L.) H. Karst. trees regarding their susceptibility bark-beetle Ips typographus infestation. The period, spanning from 2019 2020, involved two treatment plots (Tp) and control (Cp). Sap-flow sensors working according trunk-heat-balance method were set up selected sample Tp Cp. Calibration equations established after a one-year monitoring period between Cp Tp, followed by...
Abstract Damages by wind and European spruce bark beetle ( I. typographus L.) were compared on the basis of reports about occurrence harmful forest agents for period 1964−1991 across former regional state directorates. In given period, quantity salvage logging (70 million m 3 ) was more than five times that sanitation felling (13 ). Damage intensity increased over decades. Using a cross-correlation function between time series, an increase in abundance due to windfall demonstrated with delay...
Ips sexdentatus (Coleoptera: Curculionidae: Scolytinae) is one of the most destructive and economically important forest pests. A better understanding molecular mechanisms underlying its adaptation to toxic host compounds may unleash potential for future management this pest. Gene expression studies could be considered as key experimental approaches such purposes. suitable reference gene selection fundamental quantitative analysis functional genomics in I. sexdentatus. Twelve commonly used...
In the last decade, thousands of hectares forests have been lost in Czech Republic, primarily related to European spruce bark beetle (Ips typographus L.), while more than 50% remaining are great danger, thus posing severe threats resilience, stability, and functionality those forests. The role remote sensing monitoring dynamic structural changes caused by pests is essential understand sustainably manage these This study hypothesized a possible correlation between tree health status...
Intoduction The bark beetle Ips typographus currently represents the primary pest of Norway spruce ( Picea abies ) in Central Europe. Early detection and timely salvage cutting beetle-infested trees are functional management strategies for controlling outbreaks. However, alternative methods being developed, possible indicators infestation can be assessed through changes physiological, biochemical, beetle-acceptance characteristics trees. Method This study monitored infested non-infested...
Abstract The large pine weevil ( Hylobius abietis L.) is an important pest of young forest stands in Europe. Larvae develop under the bark freshly cut and spruce stumps, but maturing weevils feed on coniferous seedlings. Such seedlings frequently die because consumption near root collar. We tested effect three treatments (the insecticide alpha cypermethrin, a wax coating glue coating) feeding damage caused by H. Douglas fir Pseudotsuga menziesii ) Norway Picea abies semi‐natural conditions....
Eurasian spruce bark beetle,