A5042719093- Forest Insect Ecology and Management
- Insect and Pesticide Research
- Forest Ecology and Biodiversity Studies
- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Entomopathogenic Microorganisms in Pest Control
- Forest ecology and management
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Bioenergy crop production and management
- Bioeconomy and Sustainability Development
- Forest Biomass Utilization and Management
- Hymenoptera taxonomy and phylogeny
- Diverse Scientific Research in Ukraine
- Entomological Studies and Ecology
- Animal Vocal Communication and Behavior
- Botany and Plant Ecology Studies
- Animal and Plant Science Education
- Phenothiazines and Benzothiazines Synthesis and Activities
- Forest Management and Policy
- Insect behavior and control techniques
- Yeasts and Rust Fungi Studies
- Fire effects on ecosystems
- Research on scale insects
- Zoonotic diseases and public health
Ştefan cel Mare University of Suceava
2015-2025
Transylvania University of Brașov
2022
National Institute for Research and Development in Forestry "Marin Drăcea"
2009-2015
Abstract Aim Climate is a major driver of large‐scale variability in biodiversity, as likely result more intense biotic interactions under warmer conditions. This idea fuelled decades research on plant‐herbivore interactions, but much less known about higher‐level trophic interactions. We addressed this gap by characterizing both bird diversity and avian predation along climatic gradient at the European scale. Location Europe. Taxon Insectivorous birds pedunculate oaks. Methods deployed...
The nun moth, Lymantria monacha L. (Linnaeus, 1758), is one of the most important defoliators coniferous forests in Europe and Asia. In sexual communication, females produce three epoxides an alkene: (−)-disparlure [(7S,8R)-cis-7,8-epoxy-2-methyloctadecane], (+)-monachalure [(7R,8S)-cis-7,8-epoxyoctadecane], (−)-monachalure [(7S,8R)-cis-7,8-epoxyoctadecane], their corresponding olefins. This study aimed to develop a green synthesis pathway for all pheromonal components, emphasizing use...
<p align="justify">Scientific knowledge in the field of ecology is increasingly enriched by data acquired general public participating citizen science (CS) programs. Yet, doubts remain about reliability such data, particular when schoolchildren. We built upon an ongoing CS program, <em>Oak Bodyguards</em>, to assess ability schoolchildren accurately estimate strength biotic interactions terrestrial ecosystems. used standardized protocols attack rates on artificial caterpillars and insect...
Insect and disease outbreaks in forests are biotic disturbances that can profoundly alter ecosystem dynamics. In many parts of the world, these disturbance regimes intensifying as climate changes shifts distribution species biomes. As a result, key forest services, such carbon sequestration, regulation water flows, wood production, protection soils, conservation biodiversity, could be increasingly compromised. Despite relevance detrimental effects, there currently no spatially detailed...
Abstract Aim The strength of species interactions is traditionally expected to increase toward the Equator. However, recent studies have reported opposite or inconsistent latitudinal trends in bottom‐up (plant quality) and top‐down (natural enemies) forces driving herbivory. In addition, these rarely been studied together thus limiting previous attempts understand effect large‐scale climatic gradients on Location Europe. Time period 2018–2019. Major taxa Quercus robur . Methods We...
Abstract Urbanization is an important driver of the diversity and abundance tree‐associated insect herbivores, but its consequences for herbivory are poorly understood. A likely source variability among studies insufficient consideration intra‐urban in forest cover. With help citizen scientists, we investigated independent interactive effects local canopy cover percentage impervious surface on pedunculate oak ( Quercus robur L.) throughout most geographic range Europe. We found that damage...
Ips duplicatus (Sahlberg, 1836), Xylosandrus germanus (Blandford, 1894) and Neoclytus acuminatus (Fabricius, 1775) are invasive species reported in Romania, but their current distribution is poorly known. The research aim was to provide new information on this issue. A survey conducted over the period 2015-2017 82 locations, using flight-interception traps bottle traps, baited with different attractants. Data obtained our other unpublished studies were also taken into account. total of...
Abstract For non-native tree species with an origin outside of Europe a detailed compilation enemy including the severity their attack is lacking up to now. We collected information on native and attacking trees, i.e. type, extent time first observation damage for 23 important trees in 27 European countries. Our database includes about 2300 synthesised records (synthesised per biotic threat, country) from over 800 species. Insects (49%) fungi (45%) are main observed threats, but also...
Scolytids constitute an insect group of forest ecosystems that is very important both ecologically and economically, which has been well studied in most European countries. However, new species are found quite often, especially regions searched less intensively to date. In this paper three scolytid fauna not previously known Romania reported for the first time: Trypodendron laeve, Xylosandrus germanus Hylastes linearis. Individuals all were collected north-eastern part Romania. T. laeve was...
Ips duplicatus (Coleoptera: Curculionidae) is a bark beetle that recently invaded southern Europe. It produces intense outbreaks in the spruce stands installed outside their natural area. Pheromone dispensers with different designs are used for monitoring this species. Compounds released either by wick (ID Ecolure) or polyethene foil RO and Pheagr IDU). We performed series of laboratory field experiments to compare efficiency sustainability these terms pheromone release. The first experiment...
Ips duplicatus is an important pest of Norway spruce (Picea abies) planted outside its natural range. This species uses olfactory signals to identify the trees favourable for colonisation. The knowledge beetles’ response these stimuli managing this pest. Therefore, a specific synthetic pheromone was investigated under some sources volatile emissions characteristic spruce. traps were installed in two types forests: one with fresh and large stumps piles branches, releasing amounts host...
Field trapping experiments were conducted to evaluate the response of Ips duplicatus (Sahlberg) (Coleoptera: Curculionidae, Scolytinae) beetles different combinations synthetic pheromone with monoterpenes (−)-α-pinene and (+)-limonene. The addition led a significant increase (by 36.3–47.8%) I. captures when : terpene ratio was 1 40. When increased beyond 200, its synergic effect disappeared. Adding (+)-limonene did not modify for ratios 40, 200 1000, whereas adding in terpenes 40 1000...
Response of several non-target bark beetles (Coleoptera: Curculionidae, Scolytinae) to different combinations the northern spruce beetle’s synthetic pheromone with monoterpenes (-)-alpha-pinene and (+)-limonene has been studied in choice experiments field flight barrier traps. The were organized four Norway stands (40-50 years old) outside its natural area, north-east Romania, where Ips duplicatus (Sahlberg) populations had reached an epidemical level. Each experiment five treatments...
New records of ten invasive insect species in Romania are presented. The studied are: Cameraria ohridella Deschka & Dimic 1986, Parectopa robiniella Clemens 1863, Phyllonorycter (Clemens 1859), issikii (Kumata 1963), Hyphantria cunea (Drury 1773), Obolodiplosis robiniae (Haldeman 1847), Leptoglossus occidentalis Heidemann 1910, Eopineus strobus (Hartig 1837), Megastigmus spermotrophus Wachtl 1893 and Harmonia axyridis Pallas 1773. native range each species, the first report present...
Short rotation cultures of trees on agricultural land are implemented in various countries as to increase the European wood supply from outside existing forest sector.However, change traditional use towards intensive culture techniques may involve some environmental and social risks.The paper describes an original methodology since 2011 evaluate sustainability short-term biomass production.Our definition argues that plantations marginal or lands should produce benefits local communities...
The study zone includes one of the largest montane old-growth forests in Europe (Slatioara UNESCO site), and understanding structure functioning sill intact is essential for grounding management strategies secondary forests. For this reason, we set out to analyze dependencies between aboveground biomass (AgB), tree species size diversity terrain morphology, as well relationship diversity, since neither these issues have been sufficiently explored. We found that decreases with increased solar...
This paper describes a permanent research platform (PRP) designed and implemented in “Codrul secular Slătioara” its surroundings (2205.85 ha), having also the role of introductory for future articles based on data collected from this platform. is known as one largest temperate mountainous intact forests Europe and, 2017, it was included UNESCO World Heritage List, part “Ancient Primeval Beech Forests Carpathians Other Regions Europe”. Moreover, PRP overlaps other three scientific reserves,...
Gândacii de scoarță ai bradului din genul Pityokteines au un rol important în uscarea arboretelor brad România, special a celor situate la altitudini sub 800 m. Monitorizarea activității zbor acestor insecte este o componentă esențială măsurilor depistare și prognoză. Pentru monitorizare se utilizează capcane amorsate cu nade feromonale sintetice specifice. În acest sens, trei arborete zona Roznov, județul Neamț, amplasate cuprinse între 456 678 m, s-au instalat câte cinci ajutorul cărora...
The microsporidium Larssoniella duplicati (Weiser, Holuša, Žižka, 2006) is a specific pathogen of the bark beetle Ips duplicatus (C.R. Sahlberg, 1836), which serious pest Norway spruce (Picea abies (L.) H. Karst) in Europe. From 2011 to 2016, infection levels L. and other pathogens I. populations were assessed along gradient, ranging from areas north, where native, south, has only recently invaded. 21 study sites ranged altitude 229 1009 m a.s.l. We found that decreased native north new...
Poplar (Populus spp.) is a fast-growing species in temperate conditions, with potential to substitute fossil fuels by obtaining energy from biomass. The aim of this work was study the productivity 6 hybrid poplar clone hilly region NE Romania, after growing season 4 and, respectively, 5 years. Rods were used as planting material, planted at density 2667 trees per ha, between-row spacing 3 m and interior-row distances 1.25 m. Generally, significant differences appear between clones, for all...
Abstract Aim Climate is a major driver of large scale variability in biodiversity, as likely result more intense biotic interactions under warmer conditions. This idea fuelled decades research on plant-herbivore interactions, but much less known about higher-level trophic interactions. We addressed this gap by characterizing both bird diversity and avian predation along climatic gradient at the European scale. Location Europe. Taxon Insectivorous birds pedunculate oaks. Methods deployed...