Petr Pyszko

Petr Pyszko
University of Ostrava · Department of Biology and Ecology

Phd

About

46
Publications
5,397
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149
Citations
Citations since 2017
44 Research Items
149 Citations
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201720182019202020212022202301020304050

Publications

Publications (46)
Article
Full-text available
Microorganisms are key mediators of interactions between insect herbivores and their host plants. Despite a substantial interest in studying various aspects of these interactions, temporal variations in microbiomes of woody plants and their consumers remain understudied. In this study, we investigated shifts in the microbiomes of leaf-mining larvae...
Article
Full-text available
Over the last few decades, the beaver has settled most of the European continent including the Czech Republic. Until recently, it was a species typically found in lowland floodplain forests. However, as the population grew, it began to spread into the agricultural landscape, where it has less favorable living conditions. In the Czech Republic, beav...
Article
Full-text available
Native ecosystems have been transformed by humans into cultural landscapes, resulting in the disruption of natural interactions, with some species unable to adapt and disappearing from such landscapes. Other species were able to adapt their behavior to current environmental conditions. In some places, forest management has gradually transformed nat...
Article
Panolis flammea is an important pest whose populations intermittently outbreak in Europe. The species overwinters as pharate moths in the pupal stage in soil. Details on the metabolic activity and cold hardiness of P. flammea during the overwintering period have not been published. Therefore, we assessed O2 consumption and the supercooling point (S...
Article
Full-text available
Despite an increasing number of studies on caterpillar (Insecta: Lepidoptera) gut microbiota, bacteria have been emphasized more than fungi. Therefore, we lack data on whether fungal microbiota is resident or transient and shaped by factors similar to those of bacteria. We sampled nine polyphagous caterpillar species from several tree species at mu...
Article
This study focuses on factors that affect tree species selection by Eurasian beavers in commercial and close-to-nature forests, with the aim of identifying practical proposals for protecting target commercial tree species while still maintaining high numbers of beavers. In forests dominated by commercial tree species, the food of beavers mainly com...
Article
Full-text available
Background: Hybrid taxa exist in nature, but their fitness can vary greatly. Hybrids are usually thought to have lower viability and survival rate than parental species due to the occurrence of two different genomes and divergent evolution in each species. On the other hand, the hybrid vigour of the F1 generation may give hybrids an advantage in m...
Article
Stormwater management ponds, which are constructed to retain excess runoff and pollutants from traffic, play an important role in the freshwater biodiversity in highly modified areas. However, their roles in agricultural and semi-natural landscapes remain largely unexplored. In this study, we used Odonata as a bioindicator to compare a set of highw...
Article
Full-text available
The quarry in Stará Ves near Bílovec is considered a significant geotouric attraction. The dominant feature is the front northern wall representing one of the best outcrops of the fold-thrust tectonics of the Jeseník culm. Until 1983, shale and Moravian offal were mined in the quarry, then the quarry was restored, abandoned, and left to natural suc...
Article
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The pH of tree bark is affected by many factors, amongst them epiphytic bryophytes changing in their active state environment. Thus, we hypothesized that bryophytes can change bark acidity, dependently of the inclination of the branches, as inclination affect the water regime and particle deposition. We measured the pH under bryophyte cushions and...
Preprint
Full-text available
Despite increasing studies on caterpillar (Insecta: Lepidoptera) gut microbiota, bacteria have been emphasized more than fungi. Therefore, we lack data on whether fungal microbiota is resident or transient and shaped by factors similar to those of bacteria. We sampled nine polyphagous caterpillar species from several tree species at multiple sites...
Article
Full-text available
Ganoderma P. Karst. is a genus of wood decaying fungi with complicated taxonomy due to morphological variability of their basidiomata. Although a wide range of host plants is assumed for the genus as a whole, there is a need for revision of the host specificity of individual species. Based on revision of mycological collections across the Czech Rep...
Article
Full-text available
Recent changes in insect distribution are consistent with the expected interacting effects of climate and habitat change. The orthopteran Ruspolia nitidula has expanded its area of distribution in Western and Central Europe in recent decades. Because males emit a sound that is easily detected at a distance of up to 40 m, it is possible to detect sp...
Article
• Most ecological studies involving insects are based on medium‐ and short‐term observations; however, the extent to which such data captures reality remains unclear. • We investigated the long‐term dynamics of two Odonata communities (disturbed and undisturbed sites) over 18 years and analysed the differences in the short‐ and long‐term results. W...
Article
Full-text available
Intrataxonomic differences in terms of angiosperm suitability for herbivorous insects stem from variables such as plant structure, palatability, and chemistry. It has not yet been elucidated whether these differences also occur in terms of the bryophyte's suitability to bryophages. Hypnum cupressiforme Hedw. is a morphologically variable moss speci...
Article
Full-text available
1. Assemblages of insect herbivores are structured by plant traits such as nutrient content, secondary metabolites, physical traits, and phenology. Many of these traits are phylogenetically conserved, implying a decrease in trait similarity with increasing phylogenetic distance of the host plant taxa. Thus, a metric of phylogenetic distances and re...
Preprint
Full-text available
1. Assemblages of insect herbivores are structured by plant traits such as nutrient content, secondary metabolites, physical traits, and phenology.
Article
• Bryophytes represent favourable habitats for many arthropods, but their utilisation as a food source is marginal. While one of the largest monophyletic groups that represent obligatory bryophyte consumers are the Byrrhidae, host ranges for species in this group of beetles remain largely unknown due to their cryptic appearance and rarity. The occa...
Article
• Temperate forest canopies support a high diversity of insects, but in comparison to the tropics, little is known about insect spatial distribution, particularly in terms of vertical stratification. • We used an aerial lift platform to sample a temperate floodplain forest canopy during two seasons. We aimed to describe patterns of aphid density an...
Article
Compared with the highly diverse microbiota of leaves, herbivorous insects exhibit impoverished gut microbial communities. Research to date has focused on the bacterial component of these gut microbiomes, neglecting the fungal component. As caterpillar gut bacterial microbiomes are derived strongly from their diet, we hypothesized that their mycobi...
Article
Insect microbiota may play a wide range of roles in host physiology. Among others, microbiota can be involved in diet processing or protection against pathogens, both of which are potentially important in bryophagous (moss-feeding) insects, which survive on extreme diets and live in the stable environment of moss clumps suitable for the growth of f...
Article
Genetics has been widely used in insect ecology and conservation. To minimise the effect of DNA sampling on organisms as much as possible, it would be ideal to use non‐invasive or non‐lethal DNA sources. Therefore, it is also very important to determine the responses of organisms to DNA sampling. In this study, the quality and quantity of genomic D...
Book
Slezsko, především pak Karvinsko a Ostravsko, se z velké části jeví jako industriální krajina silně ovlivněná lidskou činností. V posledních dvou stoletích zde vznikly stavby dolů, haldy, lomy, pískovny, odkaliště, propadliště, poklesové kotliny ale i hustá silniční a železniční síť, které mají na první pohled pro přírodu a estetiku krajiny jen neg...
Article
Full-text available
The diversity and role of the gut microbiota of insects is a rapidly growing fi eld of entomology, primarily fueled by new metagenomic techniques. Whereas endosymbionts in the guts of xylophagous or herbivorous insects are well studied, the microbiomes in moss-eating (bryophagous) insects remain uncharacterized. Using the Illumina MiSeq platform, w...
Article
Full-text available
Research on canopy arthropods has progressed from species inventories to the study of their interactions and networks, enhancing our understanding of how hyper-diverse communities are maintained. Previous studies often focused on sampling individual tree species, individual trees or their parts. We argue that such selective sampling is not ideal wh...
Article
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Emerald damselfly Lestes sponsa is a common species within the temperate zone, with no special need for protection. The tactic of submerged oviposition is well known from other Odonata species, but has rarely been noticed or described in Lestes sponsa. Our study investigated the tactics of oviposition in this species, and shows that submerged ovipo...
Article
The ecology of earwigs in natural forest ecosystems is poorly understood. We used sweeping to determine the population densities of adult earwigs, by sex and species, on ten tree species in a temperate floodplain forest in southern Moravia (Czech Republic). We also determined the relationships between the properties of tree species and earwig densi...
Article
Full-text available
Knowledge about herbivores and their parasitoids in forest canopies remains limited, despite their diversity and ecological importance. Thus, it is important to understand the factors that shape the herbivore–parasitoid community structure, particularly the effect of vertical gradient. We investigated a quantitative community dataset of exposed and...
Article
Odonata have a strong potential as model organisms for testing ecological and evolutionary hypotheses because of their short life history, relative ease and cost-effectiveness of care. Unfortunately, very few studies have examined how to create a semi-natural environment for odonates, limiting the biological validity of laboratory manipulation. To...
Article
Full-text available
The Shannon–Wiener index is a popular nonparametric metric widely used in ecological research as a measure of species diversity. We used the Web of Science database to examine cases where papers published from 1990 to 2015 mislabelled this index. We provide detailed insights into causes potentially affecting use of the wrong name ‘Weaver’ instead o...
Article
Full-text available
1.Insects tend to feed on related hosts. The phylogenetic composition of host plant communities thus plays a prominent role in determining insect specialization, food web structure, and diversity. Previous studies showed a high preference of insect herbivores for congeneric and confamilial hosts suggesting that some levels of host plant relationshi...
Article
Full-text available
Although earwigs (Dermaptera) may be important components of ecosystems because of their locally high abundance and omnivory, their vertical distribution among forest strata is poorly understood. This study used a mobile aerial lift platform to survey the spatiotemporal distribution of earwigs along the vertical dimension in a forest. In 2013 and 2...
Article
Background Immunoglobulin light chain amyloidosis (AL amyloidosis) is a plasma cell dyscrasia characterized by deposition of amyloid fibrils in various organs and tissues, derived from monoclonal immunoglobulin light chains (LC), leading to organ dysfunction. Until now there is no systematic study of genomic expression of patients with AL amyloidos...

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Project (1)
Project
to investigate the role of endosymbiotic organisms in plant-herbivore food webs. Polyphagous and monophagous herbivores (Lepidoptera) from various guilds (leaf-chewers, rollers, miners) and various host plant species from several localities in temperate floodplain forest will be involved. We will determine the composition of microbial and fungal endosymbionts among insect herbivores and their host plant’s phyllosphere using Illumina Miseq and address the following questions: 1) What is the role of locality, season, host plant and feeding strategy in shaping the microbiota of associated herbivores? 2) What is the role of phyllosphere? 3) What is the effect of plant toxic secondary compounds on microbial communities associated with herbivorous generalists and specialists?