Tomasz Jaworski

Forest Research Institute, Poland | IBL · Forest Protection

Microorganisms are integral to ecosystem functioning and host adaptation, yet the understanding of microbiomes in diverse beetle taxa remains limited. We conducted a comprehensive study to investigate the microbial composition of two red flat bark beetle species, Cucujus haematodes and C. cinnaberinus , and assessed the influence of host taxonomic...

Clear-cutting is believed to have a negative impact on forest biodiversity, but numerous studies have also shown its positive effects, especially in temperate and boreal regions. This phenomenon is mainly related to the creation of early successional habitats that serve as temporary meadows. Among the species that benefit the most are those associa...

Forest ecosystems are facing increasing challenges like natural disturbances. Despite positive disturbance impacts on the diversity of several taxonomic groups, there are still concerns, whether the drastic canopy opening can lead to a turnover from forest to open habitat species. We sampled arthropods along a disturbance gradient in Norway spruce...

Minute brown scavenger beetles (Coleoptera: Latridiidae) of the Notecka Forest. This paper presents the results of trapping beetles of the Latridiidae family in the Notecka Forest in western Poland. The material was collected in 2022 as part of the study on the pine sawyer beetle Monochamus galloprovincialis (Olivier, 1800) (Coleoptera: Cerambycida...

The pine sawyer beetle Monochamus galloprovincialis is the only known vector of the pine wood nematode (PWN) in Europe. Pheromone traps are one of the tools used for monitoring M. galloprovincialis and PWN. Numerous studies have been conducted to improve trapping efficiency, but the effects of habitat type and trap exposure in relation to forest ha...

This book allows the identification of pupae of 27 Lepidoptera species most frequently encountered in forest litter during autumnal searches for the major foliophagous insects of Scots pine (Pinus sylvestris) in Poland. These activities are among the major tasks related to the assessment of threat to pine stands from the primary pests. In addition...

Aim The biogeography of European forests presents many interesting case studies, as inferred from phylogeography, contemporary population genetics, and distribution modelling of saproxylic species. Here, we pose four main hypotheses: (i) the phylogeographic paradigm known for temperate species in Europe is also applicable for saproxylic taxa; (ii)...

Forests are important habitats that harbor high biodiversity and have great economic value to humans. These ecosystems depend on saproxylic organisms, which play a crucial role in the decomposition of the main substrate of forests – wood. The highly important group of saproxylic organisms are beetles, with numerous species that are either of conser...

With the increasing threat to forests in Europe from the invasive pine wood nematode (PWN) Bursaphelenchus xylophilus, effective methods are needed to monitor and reduce populations of its insect vector, the pine sawyer beetle Monochamus galloprovincialis. In the present study, we tested the effectiveness of different trap types (multiple-funnel, c...

First record of Agrilus kaluganus Obenberger, 1940 (Coleoptera: Buprestidae) in Poland. Agrilus kaluganus oBenBeRGeR, 1940 is reported for the first time from Poland. Two adults were collected in Moericke traps (yellow pan traps) in two alder (Alnus glutinosa (l.) GaeRTn.) stands-burned and unburned ones-in Biebrza National Park (Podlasie Lowland a...

During this survey, 195 species of coleopterans have been recorded from the Lagodekhi Protected Areas (LPA). Thirty families are recorded for the first time from this area, of which Rhysodidae, Sphindidaeand, and Thymalidae are new for Georgia. One hundred fifty-seven species are new to LPA and 66 of them are new country records.

Oak forests are of great ecological and socioeconomic values but are declining in many regions due to abiotic and biotic factors, including crown damage by defoliating insects. In Europe, several geometrid species reach outbreak densities and are then able to cause severe oak defoliation. Prior to control measures, the threat posed by defoliators m...

1. Cavity-bearing trees are important nesting sites for many birds and mammals but have become rare due to anthropogenic modification of natural environments. Nest boxes are often used to compensate for the loss of these microhabitats. 2. Nest boxes contain amounts of organic debris exploited by a variety of organisms, mainly insects. We studied th...

Recent progress in the taxonomy of flat bark beetles (Cucujidae), specifically, in the genus Cucujus, has revealed great diversity in subtropical Asia, but the seemingly well-known temperate and boreal taxa need further attention because of their conservation status. Here, we used an integrative approach using morphology, DNA, and species distribut...

Black pheromone-baited traps are commonly used for monitoring Monochamus galloprovin�cialis, a vector of Bursaphelenchus xylophilus, although few studies have been conducted on its response to color (black, white, and clear). The objective of our studies was to evaluate the attractiveness of different colors to M. galloprovincialis and non-target s...

Natural disturbances are increasing around the globe, also impacting protected areas. Although previous studies have indicated that natural disturbances result in mainly positive effects on biodiversity, these analyses mostly focused on a few well established taxonomic groups, and thus uncertainty remains regarding the comprehensive impact of natur...

The knowledge of the ecological preferences of threatened species is critical to all conservation programs. Analyses of habitats and ecological parameters of species are necessary to predict future distribution and responses to climate change. Cucujus haematodes Erichson, 1845 (Coleoptera: Cucujidae) is a threatened obligate saproxylic species, lis...

The knowledge of the ecological preferences of threatened species is critical to all conservation programs. Analyses of habitats and ecological parameters of species are necessary to predict future distribution and responses to climate change. Cucujus haematodes Erichson, 1845 (Coleoptera: Cucujidae) is a threatened obligate saproxylic species, lis...

• Cavity-bearing trees are important nesting sites for many birds and mammals but have become rare due to anthropogenic modification of natural environments. Nest boxes are often used to compensate for the loss of these microhabitats. • Nest boxes contain amounts of organic debris exploited by a variety of organisms, mainly insects. We studied the...

This paper presents a new record of the rose chafer Protaetia speciosissima (Scopoli, 1786) (Coleoptera: Scarabaeidae), a rare beetle species associated with tree hollows. Specimens of this beetle were found in the oak forest in the Krotoszyn Forest District, west-central Poland, in nest-box for the tawny owl (Strix aluco L., 1758) that had accum...

The red squirrel typically nests in dreys and tree hollows, but also (when given an opportunity) in large nest boxes. We assessed the occupancy rate of nest boxes by red squirrel and non-target species (120 boxes in the continuous forest, habitat mosaic and urban park, checked annually for eight years). Habitat type explained the variability in the...

1. Ips acuminatus (the sharp‐toothed bark beetle, STBB) is currently considered to be one of the most serious pests of Scots pine in many European countries. STBB management is among the most challenging tasks in pine forests; the development of methods for monitoring, predicting and managing outbreaks of this bark beetle is therefore crucial. 2. P...

Human-induced climate and land-use changes are important factors influencing global insect diversity. Nevertheless, the influence of weather on biodiversity is still relatively rarely studied. Grassland insects may be the taxon that is most affected by changing weather. We focused on the influence of weather and land-use management on butterflies i...

Protected areas worldwide are important to maintaining biodiversity and providing recreational opportunities to society. However, many protected areas are affected by unprecedented, large and severe natural disturbances, like bark beetle outbreaks. Due to the contrasting responses of different taxonomic groups to disturbance events and largely nega...

The presence of Lepturalia nigripes (DE GEER) has been confirmed after more than 80 years in Poland. One specimen of this rare longhorn beetle was collected in the range Grzędy (Biebrza National Park, NE Poland) in a downy birch (Betula pubescens EHRH.) forest affected by fire. Distribution, biology and habitat requirements of L. nigripes are brief...

Several insect species, including those belonging to Geometridae, pose serious threats to oak stands, primarily by causing cyclic defoliation and increasing the vulnerability of trees to adverse secondary factors. Our major study goal was to compare the effectiveness of two types of pheromone traps, funnel vs. bucket traps, for capturing Operophter...

Extensive collecting in Central Asia resulted in the first description of the female of Epicallima kuldzhella (Lvovsky, 1982). Colour photographs of adults of both sexes and of habitats are included along with a distribution map, illustrations of the male and female genitalia, and some aspects of the biology.

This paper presents data on 23 beetle species recorded for the first time from the Białowieża Forest (Polish part), and among them two species new for the fauna of Poland. All the beetles were collected using multifunnel (Lindgren) traps, placed in the the selected sites of the study area in 2018. Collected species belong to 13 families: Carabidae...

Open habitats are disappearing from European forests. This is mainly due to various management-related practices, such as afforestation and the maintenance of closed canopy plantation forests. Open forests are also declining as a result of the abandonment of traditional forest use practices and natural succession. The effects of the establishment a...

Open habitats are disappearing from European forests. This is mainly due to various management-related practices, such as afforestation and the maintenance of closed canopy plantation forests. Open forests are also declining as a result of the abandonment of traditional forest use practices and natural succession. The effects of the establishment a...

The paper presents new data on the occurrence of 69 beetle species collected in 2017 in the Białowieża Forest, NE Poland. The list contains representatives of 27 families: Anthribidae, Bostrichidae, Ciidae, Cleridae, Coccinellidae, Corylophidae, Cryptophagidae, Curculionidae, Dasytidae, Elateridae, Endomychidae, Eucnemidae, Histeridae, Laemophloeid...

Organisms dependent on dead wood (i.e., saproxylic) are some of the most threatened by changes in the forest environment. Aside from anthropogenic disturbances resulting in forest fragmentation and a decrease in dead wood, the expansion of homogenous closed-canopy forests due to successional changes is identified as the main threat for many saproxy...

Research on jewel beetles (Agrilus spp.) associated with oak stands were carried out in 2008–2009, in the Krotoszyn Forest District – both in a managed forest stand and in that with restricted forest management activities, situated in the buffer zone of the Smoszew Nature Reserve. The aim of the study was to examine the habitat preferences of speci...

New data on the distribution, biology and ecology of the longhorn beetles occurring in southern and eastern regions of Kazakhstan are presented together with a list of 78 species that were collected during two entomological expeditions conducted in May and June 2017. New localities of some rare taxa endemic to this region of Asia, such as Psilotars...

The paper presents the issue of conservation of species diversity of the Bialowieza Forest in the context of both natural and human-related disturbances. These disturbances, in the authors' opinion, were the main factor that shaped the unique species diversity of this area. Examples of natural disturbances occurring in the Bialowieza Forest include...

Larvae of surprisingly many Lepidoptera species depend on dead wood and wood-decay fungi and are thus considered saproxylic insects. This interesting group has been scientifically neglected for many years, and few studies have been conducted concerning its biology, taxonomy, distribution, and ecology. Merely several dozen species of saproxylic Lepi...

Monochamus sartor sartor from Central European mountain ranges and M. s. urussovii from the Eurasian boreal zone are subspecies whose taxonomic statuses have been questioned. This sawyer beetle is a natural element of spruce forests but is considered to be a timber pest in spruce plantations. In this study, different sets of data (morphology, genet...

The energetic use of wood waste in cement plants, as well as in the commercial power industry and district heating can bring measurable economic and environmental benefits. The article presents an analysis of the possibility of using selected postconsumer wood waste as an alternative fuel. For this purpose, a series of tests were carried out to det...

All available information on the distribution and habitat requirements of saproxylic beetle Corticaria bella Redtenbacher in Europe is presented. The first record of C. bella in Finland (new country record) is based on museum specimens. Data on the occurrence of this species in Greece is supplemented based on specimens from a private collection. As...

Saproxylic beetles represent an important part of the chain of decay processes and are of high interest for understanding the main drivers of forest community succession. The main aims of this paper were to determine (i) the differences between communities of the crown and stem strata and (ii) the effect of fine vertical stratification within the s...

The paper presents the first records of the tineid moth Nemapogon gliriella in Poland. Eleven specimens were reared from sporocarps of Stereum hirsutum and S. rugosum growing on dead oak and hazel wood. Issues concerning morphological similarity with other species in the genus Nemapogon are briefly discussed. The basic ecological characteristics of...

Truffle harvests are declining in Europe, due to droughts, and this offers an opportunity for production to be developed in countries such as the UK and Poland, where rainfall tends to be higher. Drier Medi-terranean summers seem to be associated with a decrease in the harvest of the P erigord truffle (Tuber melanosporum) in Spain, France and Italy...

We investigated saproxylic moths of the family Tineidae, a neglected group inhabiting wood-decaying fungi and dead wood, within the Białowieża Primeval Forest in Poland. Study data were obtained from the collection of 280 fruiting bodies of wood-decaying fungi and the subsequent rearing of adults. Spatial and statistical distribution of saproxylic...

The paper presents data on the distribution of 24 species of tineid moths in Poland. The data were obtained based on a few methods of collecting of moths, mainly with use of artificial light and rearing of adults from decaying wood and bracket fungi inhabited by larvae. Nearly a dozen of species were recorded from particular regions of Poland for t...

1 We investigated insects overwintering in Norway spruce and Scots pine killed by cambium-feeding beetles. The study was conducted in five large forests in north-eastern Poland. Insects were reared from wood samples cut from the upper and lower parts of trees growing in both shaded and sun-exposed conditions. 2 We found that the species richness of...

Effects of Scots pine wood amendment on the fungal community in forest soil infested with cockchafers and foraged or non-foraged by wild boars and hares were investigated. We hypothesized that sawdust amendment would increase the abundance of entomopathogenic and insect-associated species effective in cockchafer predation. The soil dilution method...

Access to the article at http://www.sciencedirect.com/science/article/pii/S0926669015002496 The grubs of Melolontha melolontha and Melolontha hippocastani damage the roots of many plants and are therefore considered serious pests in agriculture, horticulture and forestry in central and eastern Europe. Since the implementation of legislative regul...

A new species of Oecophoridae, Batia hilszczanskii, was reared from larvae feeding in branches of the golden oak (Quercus alnifolia) obtained in Cyprus. It differs from other species in the Batia genus by the forewing markings and structures of the male and female genitalia. Photographs of the adults and the type locality as well as figures of the...

Data on the occurrence and habitat requirements of the false click beetles were collected in the years 1992-2014. New localities for seventeen species are presented including a new species for the Polish fauna - Microrhagus pyrenaeus Bonvouloir. The occurrence of Rhacopus sahlbergi (Mann.) in Poland is confirmed after 80 years, and first confirmed...

Działalność naukowa pracowników Zakładu Ochrony Lasu IBL zaowocowała w ostatnich latach odkryciem i opisaniem szeregu nowych dla nauki gatunków organizmów. Osiągnięcia te wnoszą nowy element wiedzy w zakresie takich dziedzin nauk leśnych jak fitopatologia oraz entomologia.

Melolontha grubs are polyphagous and are adapted to feeding on plants of varying nutritional value. Our research sought to investigate whether host plant quality affects first-instar grub development, weight gain, or mortality. Ten plant taxa of the families Polygonaceae, Brassicaceae, Asteraceae, Fabaceae, and Pinaceae were tested. The quality of...

Review of literature data as well as new distributional records of the relict and endangered saproxylic tineid moth Scardia boletella (Fabricius, 1794) in Poland are presented. Unpublished museal data from 1954 to 1963 and own observations from 1988 to 2014, mainly from Bieszczady Mts, East Beskid, Masurian Lake District, Białowieża Forest and Podl...

Many saproxylic insects have declined or became extinct, mainly due to habitat loss and fragmentation, and their survival increasingly depends on active conservation. Efforts to achieve this goal may be supported by the introduction of new methods, including creation of artificial habitats. Here we present results of studies on the use of wooden bo...

The paper presents the results of our studies on the preferences of the flower chafer, Protaetia speciosissima (Scopoli, 1786). The studies were carried out in 2009-2010 in the Forest Districts of Hajnówka, Krotoszyn, Łochów, Pińczów, and Puławy, located in various regions of Poland. Barrier traps consisting of a Moericke's trap and a Malaise's tra...

New records for twenty species of saproxylic tineid moths (Lepidoptera, Tineidae) from the Bia?owie?a Forest (NE Poland) are presented. Most species were recorded on the basis of laboratory breeding of the adult moths from the sporocarps of wood-decaying fungi inhabited by the larvae. Some species were captured using barrier traps or were collected...

The larvae (grubs) of the cockchafer Melolontha sp. are one of the most serious pests feeding on plant roots in agriculture, horticulture and forestry. Since the conventional insecticides were banned for use in the soil environment, there is no effective method to control the pest population. In earlier laboratory studies we tested Brassica juncea...

Ongoing climate change is mainly evident as increased in average temperature. It is expected to have a significant impact on world’s biomes, with forest ecosystems especially vulnerable to these changes. The effect of climate change on forests is both indirect, through its impact on various tree species of different ecological requirements, and dir...

First report of Dryadaula caucasica (Zagulajev, 1970) from Central Europe and records of further rare tineids (Lepidoptera: Tineidae) in Białowieża Primeval Forest Dryadaula caucasica (Zagulajev, 1970) (Lepidoptera: Tineidae: Dryadaulinae) is recorded for the first time in Central Europe. Two specimens were collected in Białowieża Forest, NE Poland...

The pine wood nematode (PWN) Bursaphelenchus xylophilus (Steiner et Buhrer) Nickle (Aphelenchida, Parasitaphelenchidae), causing the pine wilt disease (PWD), is a quarantine species of Europe that was found in Portugal in 1999. High ambient temperature (above 20°) is considered to be one of the main factors enhancing the development of PWD in pine...

New faunistic data on leaf-mining species of Lepidoptera from central Poland are provided. Eight species are new for Lodz province: Stigmella alnetella, Tischeria decidua, Caloptilia betulicola, Leucospilapteryx omissella, Phyllonorycter issikii, Phyllonorycter platani, Phyllonorycter robiniella, Leucoptera malifoliella.

In the last years, a few changes have been made in forest management in Poland. Some of them together with climate change could be responsible for an increased pest risk in Scots pine stands. There are two examples at least. The first one is that in rich site conditions small-area clear cuttings (up to 4 ha), shelterwood or group cuttings became mo...

Liczebność gąsienic brudnicy mniszki i barczatki sosnówki na drzewach o różnej grubości w drzewostanach sosnowych Puszczy Noteckiej The abundance of the nun moth and lappet moth larvae on trees of different trunk thickness in Scots pine stands in the Noteć forest complex The size of trees varies in forests, even even-aged monocultures, and this h...

Lime leafminer, Phyllonorycter issikii (Kumata, 1963), one of the few invasive species of the family Gracillariidae (Lepidoptera), is characterized. Information about the description and origin of the species is given, as well as the possible ways of its spreading across Asia and Europe. Characteristics of imago prematural stages and some additiona...

The aim of this study was to describe the communities of oak leaf-miners of the genus Phyllonorycter Hbn. in various types of forest habitats. The research was conducted in three study areas in central Poland. Seven of the eight Phyllonorycter species known from across Poland were found and identified using adults that emerged during rearing and/or...