All you can eat: autochthonous vertebrate and invertebrate predation by the alien spider Parasteatoda tepidariorum (C.L. Koch, 1841) (Araneae: Theridiidae) in two anthropogenic habitats of Italy
DOI:
https://doi.org/10.3989/graellsia.2023.v79.350Keywords:
Araneae, Theridiidae, Parasteatoda tepidariorum, Europe, Ecology, Vertebrate predation, Podarcis siculus, Alpiscorpius sigmaAbstract
We report the two main autochthonous prey items of the alien spider Parasteatoda tepidariorum (C.L. Koch, 1841) in two anthropogenic habitats of the Italian Alps, namely a lizard and a scorpion species: Podarcis siculus (Rafinesque, 1810) and Alpiscorpius sigma Kovařík, Štundlová, Fet & Šťáhlavský, 2019. Additionally, we briefly describe the predatory behavior of this spider with both preys, highlight the scarcity of records of invertebrate predation on vertebrates in Europe, and address some concerns regarding how this might affect autochthonous populations.
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