Naslov
Eastward spread of the ragweed leaf beetle Ophraella communa towards the Pannonian plain and the Balkans

Autori
Karrer, Gerhard ; Zadravec, Mladen ; Augustinus, Benno ; Müller-Schärer, Heinz ; Sun, Yan ; Horvatić, Barbara ; Prpić, Paula ; Kulijer, Dejan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
11th International Conference on Biological Invasions: The Human Role in Biological Invasions – a case of Dr Jekyll and Mr Hyde? Book of absstracts / - , 2020, 97-97

Skup
11th International Conference on Biological Invasions: The Human Role in Biological Invasions – a case of Dr Jekyll and Mr Hyde?

Mjesto i datum
Vodice, Hrvatska, 15.09.2020. - 18.09.2020

Vrsta sudjelovanja
Poster

Vrsta recenzije
Podatak o recenziji nije dostupan

Ključne riječi
Coleoptera ; Chrysomelidae ; Ophraella communa ; Croatia ; Europe ; alien species

Sažetak
The Human Role in Biological Invasions - a case of Dr Jekyll and Mr Hyde?97 Book of Abstracts P27 Eastward spread of the ragweed leaf beetle Ophraella communa towards the Pannonian plain and the Balkans Gerhard Karrer1, Mladen Zadravec2, Benno Augustinus3, Heinz Müller-Schärer3, Yan Sun3, Barbara Horvatić4, Paula Prpić5, Dejan Kulijer61Institute of Botany, University of Natural Resources and Life Sciences Vienna, Gregor Mendel Street 33, 1180 Vienna, Austria. 2Antuna Stipančića 12, HR–10000 Zagreb, Croatia. 3Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland. 4Oroslavska 1, HR–49243 Oroslavje, Croatia. 5Božidarevićeva 9, HR–10000 Zagreb, Croatia. 6National Museum of Bosnia and Herzegovina, Zmaja od Bosne 3, 71000 Sarajevo, Bosnia and Herzegovina Abstract Since the first documentation of the occurrence of the multivoltine ragweed leaf beetle Ophraella communa in Europe near the Milano airport (Boriani et al., 2013, Bosio et al. 2014) and Southern Switzerland (Müller-Schärer et al. 2014) this species behaves invasively, expanding its distribution towards the Northeastern part of Italy (Augustinus et al. 2020) and the adjacent parts of Slovenia (Seljak 2017) and Croatia (Zadravec et al. 2019). In 2018 several more populations of O. communa were registered by Karrer (unpublished) from Trieste towards Ljubljana along the highway E61. In 2019 several more populations south and east of Ljubljana were detected, linked to subordinated roads and railroads. In Slovenia the easternmost finding was 35 km east of Ljubljana. The populations in Croatia agglomerate in 2018 southeast of Zagreb and more than doubled its range to the east and west in 2019 (Zadravec, Horvatić & Prpić, unpublished). Two new observations are documented most recently in the iNaturalist database (https://www.inaturalist.org/observations/50185018) by the user “danamihaimileazachi” for Romania in Bucharest (near the airport). Most recently, Kulijer (unpublished) found Ophraella communa in Northern Bosnia & Hercegovia not far from the Croatian populations. Thus, the invasion of O. communa to the southern part of the Pannonian plain as well as to the central part of the Balkans is ongoing. For 2020, we expect some more findings in direction of the central part of the Pannonian plain (Hungary), Serbia, and Austria (Follak et al. 2014) Long distance dispersal like the occurrence in Bucharest last year might have been promoted by vehicles (cars, trucks trains, airplanes). Entrapment and transport by motor vehicles is documented by Zadravec (2019) and Karrer (in Schmidt 2020). We assume that the expansion at the local scale is rather due to the well-developed flight ability of the beetles. Zadravec et al. (2019) stated that the beetle might be able to produce three or more generations per year under the climatic conditions of the southwestern Pannonian plain, and Augustinus et. al. (2020) predict four to five generations per year and highest population build-up for the most suitable areas in Europe, i.e. for northern Italy and parts of western Russia and western Georgia. This makes an effective local expansion of the populations very plausible. The spread of Ophraella communa is a continuing process that can be “monitored” better if more researchers working in the field, and even the general public, are made aware of this beetle. The local spread looks continuous whereas the regional spread represents rather a discontinuous process due to very uncertain containment in people’s vehicles and traffic routes.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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