Radosław Witkowski

Radosław Witkowski
Poznań University of Life Sciences · Department of Forest Entomology and Pathology

PhD

About

17
Publications
7,003
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17
Citations
Additional affiliations
October 2015 - present
Poznań University of Life Sciences
Position
  • PhD Student

Publications

Publications (17)
Article
Full-text available
Gnathotrichus materiarius (Fitch, 1858) is an alien ambrosia beetle from North America, that has been spreading across Europe since the 1930s. The species infests coniferous trees, excavating galleries in sapwood. However, to date very few studies have predicted changes in ambrosia beetle habitat suitability under changing climate conditions. To fi...
Article
Full-text available
Background: Resources of dying and dead trees, decaying fragments of stems, stumps and branches, i.e., coarse woody debris (CWD), are an important structural element of biocenoses and are drivers of biodiversity. The aim of this study was to describe assemblages of saproxylic beetles in pine stands of western Poland in view of dead wood resources....
Data
Supplementary Materials The alphabetical list of beetle species caught on dead trees in protected and commercial pine stands of western Poland in 2013–2014 Mazur, A.; Witkowski, R.; Ku´zmi´nski, R.; Jaszczak, R.; Turski, M.; Kwa´sna, H.; Łakomy, P.; Szmyt, J.; Adamowicz, K.; Łab˛edzki, A. The Structure of Saproxylic Beetle Assemblages in View of C...
Preprint
Full-text available
Ambrosia beetles of the Euwallacea fornicatus species complex are emerging tree pests with a broad host range including important agricultural crops. Native to Southeast Asia, these species were introduced into various countries, where they cause considerable damage to many tree species. Here we report several outbreaks of E. fornicatus s.l. in Eur...
Preprint
Full-text available
Ambrosia beetles of the Euwallacea fornicatus species complex are emerging tree pests with a broad host range including important agricultural crops. Native to Southeast Asia, these species were introduced into various countries, where they cause considerable damage to many tree species. Here we report several outbreaks of E. fornicatus s.l. in Eur...
Article
This review paper presents an analysis of scientific information on the biology, ecology and protection measures for the European stag beetle (Lucanus cervus) in Europe, and based on this information practical methods and effective conservation procedures for the species in the forest areas. The European stag beetle is a saproxylic coleopteran char...
Article
Full-text available
ABSTRACT With increasing globalization, large numbers of plant species are being moved from their areas of natural occurrence to new ecosystems and parts of the world. Several species belong to the invasive alien species with more or less negative impacts on their surrounding environment. In the urban forests of Berlin, we can already find five pla...
Article
Full-text available
The paper presents data on the occurrence and ecology of Pityogenes calcaratus (Eichh.), provides new data on the occurrence of this species in Georgia, and illustrates the beetle morphology and galleries.
Article
Hypoborus ficus Erichson, 1836, is a widespread bark beetle in the Mediterranean region (Talhouk 1969). The species was recorded in Europe: Austria, Azerbaijan, Azores, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, France (including Corsica), Greece, Hungary, Italy (including Sardinia and Sicily), Macedonia, Malta, Portugal, Southern Russia, S...
Article
Full-text available
Gnathotrichus materiarius is listed as an alien ambrosia beetle in European fauna. This is an invasive species from North America, which was found in Europe (France) in the 1930s. In Poland, it was recorded in 2015. Already in 2017 numerous infestations of G. materiarius on lying Pinus sylvestris wood were obsereved. G. materairius is a xylo-mycoph...
Poster
Full-text available
Dead wood was inventoried in 13 research areas – pine and oak stands with varying degrees of naturalness and way of management. Objects represent wide range of management type: strict reserves, oak stands attacked by Armillaria sp., uneven-aged pine stands and commercial forests with intensive sanitation cutting. Beetles composition was analysed fo...
Article
Full-text available
It is the first full information about the occurrence of the Mediterranean cypress bark beetle Phloeosinus aubei (Perris, 1855) in Poland. The first observation was made in 2014 near Wrocław and then in 2017 in Poznań. It has been observed that Phloeosinus aubei has no big impact on Polish forests. So far its role is limited to trees which are cult...
Article
Full-text available
Gnathotrichus materiarius (Fitch, 1858) is an alien species in the European fauna. In Poland, this species has not been recorded thus far, although it was assumed that it may be present. This paper presents the first site of G. materiarius in Poland. A single individual of the beetle was captured during monitoring activities of the Double-spined ba...
Article
Full-text available
The presented results were obtained during the performance of a research project concerning insect and fungi species diversity related to dead wood in oak and pine forests (carried out between 2012 and 2015). The observations were carried out in State Forests in production forests and production forests exempt from sanitary measures and in the Draw...
Article
Full-text available
Until recently three species from the genus Trypodendron Stephens, 1830 were reported in Poland: T. domesticum (Linnaeus 1758), T. lineatum (Oliver 1795) and T. signatum (Fabricius 1792). Trypodendron laeve Eggers, 1939 was observed in the Świętokrzyskie Mountains, in the Strict Protection Districts of Chełmowa Góra and Święta Katarzyna. Bark beetl...
Article
Full-text available
One effective way of evaluating the threat to pine stands by the foliophagous insects is the method of autumn exploration of primary pests. The Entomological Section of “Koło Leśników” at the University of Life Sciences in Poznan in November 2012 conducted a study in the Rogów Arboretum, whose main objective was to assess the risk posed to the five...

Questions

Questions (7)
Question
Hello,
I have many photos with GPS localisation (EXIF) and now I want to extract longitude/latitude data (in decimal degrees) from it and save as csv table. I have only basic knowledge in R so it's hard form me to create or even find (working) way.
Best regards!
Radek
Question
In some papers I found information that Hypoborus ficus (Coleoptera: Curculionidae: Scolytinae) was recorded in Austria (eg. Löbl, I., & Smetana, A. (2011). Catalogue of Palaearctic Coleoptera: Vol. 7.) but still I can't find the primary source. I will be grateful for help.
Question
Where can I find information about occuring Gnathotrichus materiarius (Coleoptera: Scolytinae) in America/USA?
I found some publications and I downloaded data from GBIF, maybe there is something more? Coordinates are the best for me.
Question
Hi, I am looking for the best way of "self collecting" method for Gnathotrichus materiarius. I know ethyl alcohol and sulcatol are substances which attract this beetle.
I can't find any information where I can buy sulacatol.
Do you know where I can order it? Are there any pre made lures like for Ips sp. or other bark beetles?
Question
I found bark beetle, probably Hypothenemus eruditus Westwood, 1836 (Curculionidae: Scolytinae), but I can't find any identification key to confirm it.
If anyone has it I will be grateful for sharing.
Question
Hello,
Recently I have been interested in Gnathotrichus materiarius (Fitch, 1858). It is an invasive species from North America, which for the first time was found in Europe in 1933 (France). I found some publications, but information about biology and ecology of this species are modest and inadequate.
In libraries I have an access I found only these publications:
1. Evans, H. F., & Oszako, T. (Eds.). (2007). Alien invasive species and international trade. Forest Research Institute.
2. Haack, R. A., & Petrice, T. R. (2009). Bark-and wood-borer colonization of logs and lumber after heat treatment to ISPM 15 specifications: the role of residual bark. Journal of Economic Entomology, 102(3), 1075-1084
3. Kirkendall, L. R., & Faccoli, M. (2010). Bark beetles and pinhole borers (Curculionidae, Scolytinae, Platypodinae) alien to Europe. ZooKeys, (56), 227
4. Valkama, H., Martikainen, P., & Räty, M. (1998). First record of North American ambrosia beetle Gnathotrichus materiarius (Fitch)(Coleoptera, Scolytidae) in Finland-a new potential forest pest?.
5. Schneider, I. (1985). Gnathotrichus materiarius Fitch (Col., Scolytidae) in Pheromonfallen vonIps cembrae (Heer)(Col., Scolytidae), ein neuer Fundort für NW-Deutschland. Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz, 58(3), 50-51.
6. Flechtmann, C. A. H., & Berisford, C. W. (2003). Identification of sulcatol, a potential pheromone of the ambrosia beetle Gnathotrichus materiarius (Col., Scolytidae). Journal of Applied Entomology, 127(4), 189-194
7. Hirschheydt, J. V. (1992). Der amerikanische Nutzholzborkenkäfer Gnathotrichus materiarius (Fitch) hat die Schweiz erreicht. Mitt. Schweizerisch. Entomol. Gesellschaft, 65, 33-37.
If someone has an access to any other publications about this bark beetle, I will be grateful if you let me know
Thanking you in advance for any help.
Best regards,
Radosław Witkowski
Question
Dear Sirs,
I am from Poland, and I am interested in Bark Beetles. In my country we have about 120 species of Scolytinae (only). I would like to make collecion of bark beetles, but not only from Europe. Our fauna is pure compared to other parts of the World. I am writing to enquire about mayby someone has unnecessary or in excess bark beetles and can share them with me. Beetles can be determined or not (better det.), can be in alcohol or dry. Of course I can send some species from my collection (speciments only from Poland, but determined).
Should you need any further information, please do not hesitate to contact me.
Yours faithfully,
R. WItkowski

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Projects

Project (1)
Project
All kind of information about ambrosia beetles in Poland.