A5020398555- Insect-Plant Interactions and Control
- Plant and animal studies
- Insect and Pesticide Research
- Forest Insect Ecology and Management
- Insect Pest Control Strategies
- Biological Control of Invasive Species
- Ecology and Vegetation Dynamics Studies
- Botany and Plant Ecology Studies
- Plant Parasitism and Resistance
- Seed Germination and Physiology
- Plant Taxonomy and Phylogenetics
- Allelopathy and phytotoxic interactions
- Animal Ecology and Behavior Studies
- Hemiptera Insect Studies
- Weed Control and Herbicide Applications
- Insect and Arachnid Ecology and Behavior
- Agricultural Productivity and Crop Improvement
- Mollusks and Parasites Studies
- Species Distribution and Climate Change
- Insect Resistance and Genetics
- Plant and fungal interactions
- Entomological Studies and Ecology
- Plant Toxicity and Pharmacological Properties
- Agricultural pest management studies
- Plant tissue culture and regeneration
Czech Agrifood Research Center
2015-2024
Budapest History Museum
2019
Agroécologie
2013
Plant Health Care (United States)
2012
Charles University
2002-2003
Plant Production Research Institute
1992
The consumption and preferences of polyphagous ground beetles (Coleoptera: Carabidae) for the seeds herbaceous plants was determined. were stuck into plasticine in small tin trays exposed to beetle predation on surface ground. In laboratory effect carabid (species, satiation) seed size) intensity investigated. generally preferred Cirsium arvense by 23 species common carabids increased with body size. Seed Capsella bursa-pastoris their rates not related average daily all tested (0.33 mg ....
Abstract We assessed the changes in abundance and community composition of native species coccinellids (Coleoptera: Coccinellidae) on deciduous trees that occurred between 1970s 2010s, Czech Republic. As adult communities varies with host plant season, were sampled May–June from Acer , Betula Tilia using a standardised sweeping method. This was done before (1976–1986) after (2011–2014) arrival Harmonia axyridis 2006, interim samples period immediately it arrived Republic (2002–2006)....
Summary Pre‐dispersal predation of seeds Asteraceae has been studied in species where ripening seed is present on plants for long periods but rarely those maturation ephemeral and density consumers therefore unlikely to keep pace with changes availability. We followed dandelion ( Taraxacum officinale ) by the larvae Glocianus punctiger Olibrus bicolor predicted that both abundance damage will be indirectly proportional inflorescence availability, overall less than longer lived...
In Central Europe, the most abundant aphid infesting leaves of small grain cereals is Metopolophium dirhodum (Walker) (Homoptera: Aphididae). Annual variation in its seasonal dynamics was evaluated using a 25-yr series standardized weekly censuses winter wheat plots. M. made up >50 % aphids on foliage. Date immigration (8 May–3 July), length period population increase (0–9 wk), and date attaining maximum abundance (28 May–22 July) varied greatly. For prediction, we regressed numbers/tiller...
Preferences of seed predators may be an important factor that introduces bias in the results predation studies.In this paper, we report on experimentally established preferences carabid beetles for seeds herbaceous plants.The standard arrangement 28 species from 13 families was offered to 37 carabids belonging 5 tribes.The overall consumption affected by body mass more than length and showed a quadratic relationship with dry carabid.The number preferred varied 1 16, unspecialized ordered...
Ground beetles are important invertebrate seed predators in temperate agro-ecosystems. However, there is a lack of information regarding which properties to carabids when they select seeds for consumption. Therefore, properties, such as size, shape, morphological defence, and chemical composition, were measured, addition taxonomy ecology, these data used explain carabid preferences. Carabid preferences assessed using multi-choice experiment with 28 species weed presented 37 Carabidae....
ABSTRACT Rumex alpinus L. ( R. ) is a non‐native invasive plant in Czech mountain regions, altering ecosystem structure and function protected areas. obtusifolius native species problematic weed meadows, while longifolius DC. characteristic of Fennoscandia widespread northern central Europe. This study explores temperature‐driven germination patterns , also focuses on potential differences across populations . The hypothesis suggests that not established lowland areas due to temperature...
Summary The importance of predation in determining the fate post‐dispersal dandelion ( Taraxacum officinale ) seed was investigated. Flowering, dispersal, seedling establishment, and predator abundance were recorded 2002 2003, at two sites. Number flowers counted 1‐m 2 plots, wind‐borne seeds collected water traps, invertebrate estimated from rate removal exposed on ground activity density determined by using pitfall traps. censuses made 2‐ to 3‐day intervals. Seed dispersal occurred 10 days...
Abstract In many agro‐ecosystems of the temperate region, granivorous ground beetles (Coleoptera: Carabidae) are most important invertebrate predators seeds after dispersal. The consumption a particular species seed differs among carabid species, but seasonal variation in has not yet been studied. Seasonal differences quantity consumed by carabids Harpalus affinis (Schrank) and distinguendus (Duftschmid) were studied cafeteria experiment. Adults collected on five dates between April November...
Aphid populations show periodic fluctuations and many causes are attributed to their dynamic. We investigated the regulation by temperature of aphid composed Metopolophium dirhodum, Sitobion avenae, Rhopalosiphum padi on winter wheat using a 24 years long time series data. computed sum daily temperatures above 5°C, threshold for development, within [0(threshold development),5] °C interval. Applying Generalised Additive Model framework we tested influences history expressed via degree days...
Abstract Coccinellids (Coleoptera: Coccinellidae) provide important ecosystem services as biocontrol agents in contributing to the regulation of key agricultural pests. It is generally accepted that biodiversity native coccinellid communities has been declining during recent decades. Here, we present results a long‐term study and report an attempt determine whether changes land use have affected their composition. were sampled cereal crops, on wild herbaceous plants deciduous trees two...
We surveyed ladybirds (Coleoptera: Coccinellidae) in 10 stands of Scots pine (Pinus sylvestris), all monoculture 5-100 years old, western Slovakia, Central Europe, over two successive periods, October 2013 -March 2014 and 2015.The winter each period was exceptionally mild.Ladybirds were collected from the lower branches trees using beating trays present 61% 1040 samples (one sample containing 20 branches, 1 m long each).In total 3965 individuals species recorded.Non-conifer dwelling...
Ground beetles (Carabidae: Coleoptera) are predators of the seed herbaceous plants scattered on ground, but prefer that certain species.Foraging encounter both freshly dispersed and exhumed from soil bank.The predation bank has never been studied effect burial acceptability is unknown.The preferences two generalist granivorous carabids, Harpalus affinis Pseudoophonus rufipes, were investigated by offering them fresh (stored frozen after dispersal) buried (for 6 months in under field...
Adults of some coccinellid species overwinter in aggregations consisting many individuals.They may clump because adults are attracted to particular environmental stimuli and/or an innate tendency join conspecific individuals.Aggregation behaviour was studied Coccinella septempunctata L., which forms small clumps, and Ceratomegilla undecimnotata (Schneider) Hippodamia variegata (Goeze), form large clumps.Adults were recorded at five hilltop hibernacula (400-1500 m altitude) central Europe...
Abstract To test the predictions of allometric analyses laboratory data on aphidophagous ladybirds, a study was carried out small [ Propylea quatuordecimpunctata (L.); dry female body mass 3.7 mg] and large species ( Coccinella septempunctata L.; 15.4 mg) (both Coleoptera: Coccinellidae) predatory ladybird, which regularly exploit cereal aphids. In 2003–2006, females C. in 2006 P. were collected at 2‐ to 5‐day intervals during 30‐day period around peak aphid abundance, number eggs they laid...
The harlequin ladybird beetle Harmonia axyridis (Coleoptera, Coccinellidae) has invaded and established in Slovakia. Following unintentional introduction 2008, the spread of alien coccinellid was very fast. By end 2009, it recorded across whole country, by 2012 widely distributed common various habitats, particularly gardens, orchards urban areas, where most frequent on trees. rate eastward approximately 200 km year-1, similar to overall Europe. Between 2008 2012, a total 153 localities,...
Harmonia axyridis (Pallas), an invasive non-native species in central Europe, can outcompete other aphidophagous species. The distribution and abundance of H. vary depending on different host plants, its effects native coccinellid communities may change accordingly. coccinellids Europe (50°N, 14°E) were investigated from 2010 to 2016. Coccinellids counted at regular intervals cereals (Avena, Hordeum, Triticum), herbaceous plants (Matricaria Urtica) trees (Acer, Betula, Tilia). Additionally,...