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2017•Fragmenta FaunisticaOpen access

Three alien spider species (Araneae: Theridiidae) newly found in Poland

Robert Rozwałka, Łukasz Dawidowicz, Wioletta Wawer

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Abstract

Global warming and intensive transport favor the spreading of species. In 2015, three theridiid spider species were found in Poland for the first time: Kochiura aulica, Latrodectus geometricus and Theridion melanostictum. Kochiura auilica was transported in pomegranates from Turkey and T. melanostictum in pomegranates from Chile. One female of Latrodectus geometricus hung, with three egg sacs, on a web in a car imported from the USA (2015), and also in grapes imported from Chile, Morocco and RPA (2017). Effect of non-native spider species in Poland is discussed.

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What this paper is about

Global warming and intensive transport favor the spreading of species. In 2015, three theridiid spider species were found in Poland for the first time: Kochiura aulica, Latrodectus geometricus and Theridion melanostictum. Kochiura auilica was transported in pomegranates from Turkey and T. melanostictum in pomegranates from Chile. One female of Latrodectus geometricus hung, with three egg sacs, on a web in a car imported from the USA (2015), and also in grapes imported from Chile, Morocco and RPA (2017). Effect of non-native spider species in Poland is discussed.

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Available abstract

Global warming and intensive transport favor the spreading of species. In 2015, three theridiid spider species were found in Poland for the first time: Kochiura aulica, Latrodectus geometricus and Theridion melanostictum. Kochiura auilica was transported in pomegranates from Turkey and T. melanostictum in pomegranates from Chile. One female of Latrodectus geometricus hung, with three egg sacs, on a web in a car imported from the USA (2015), and also in grapes imported from Chile, Morocco and RPA (2017). Effect of non-native spider species in Poland is discussed.

Key concepts: Theridiidae, Spider, Alien, Biology, Ecology, Geography, Demography, Population

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