Počet záznamů: 1  

Neonicotinoid insecticides limit the potential of spiders to re-colonize disturbed agroecosystems when using silk-mediated dispersal

  1. 1.
    0508424 - MBÚ 2020 RIV GB eng J - Článek v odborném periodiku
    Řezáčová, M. - Řezáčová, Veronika - Heneberg, P.
    Neonicotinoid insecticides limit the potential of spiders to re-colonize disturbed agroecosystems when using silk-mediated dispersal.
    Scientific Reports. Roč. 9, AUG 22 (2019), č. článku 12272. ISSN 2045-2322. E-ISSN 2045-2322
    Institucionální podpora: RVO:61388971
    Klíčová slova: alpaida-veniliae araneae * biological-control * wolf spider
    Obor OECD: Ecology
    Impakt faktor: 3.998, rok: 2019
    Způsob publikování: Open access
    https://www.nature.com/articles/s41598-019-48729-6

    Agroecosystems are subject to regular disturbances that cause extinction or migration of much of their fauna, followed by recolonization from surrounding refuges. In small-sized aeronaut spiders, such recolonization is potentiated by their ability to rappel and balloon. These are complex behaviors that we hypothesized to be affected by neurotoxins, namely, neonicotinoids. We tested this hypothesis using two common farmland spider species, Oedothorax apicatus (Linyphiidae) and Phylloneta impressa (Theridiidae). The spiders were topically exposed by dorsal wet application or tarsal dry exposure to commercial neonicotinoid formulations Actara 25 WG, Biscaya 240 OD, Mospilan 20 SP and Confidor 200 OD at concentrations that are recommended for application in agriculture. Contact exposure to neonicotinoids suppressed the ability of spiders to produce the major ampullate fiber and anchor it to the substratum by piriform fibrils. Contact exposure to neonicotinoids also suppressed the ballooning behavior that was manifested by climbing to elevated places, adopting a tiptoe position and producing silk gossamer in the wind. Impaired ability of affected common farmland spiders to quickly recolonize disturbed agroecosystems by silk-mediated dispersal may explain their decline in multiple farmland ecosystems, in which neonicotinoids are applied.
    Trvalý link: http://hdl.handle.net/11104/0299336

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.