| Title: | Plant responses to butterfly oviposition partly explain preference-performance relationships on different brassicaceous species |
| Author(s): | Griese E; Pineda A; Pashalidou FG; Iradi EP; Hilker M; Dicke M; Fatouros NE; |
| Address: | "Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands. Biosystematics Group, Wageningen University, Wageningen, The Netherlands. NIOO-KNAW, Wageningen, The Netherlands. UMR Agronomie, INRA, AgroParisTech, Universite Paris-Saclay, 78850, Thiverval-Grignon, France. BASF Chile, Carrascal 3851, Quinta Normal, Santiago, Chile. Institute of Biology, Freie Universitat Berlin, Berlin, Germany. Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands. nina.fatouros@wur.nl. Biosystematics Group, Wageningen University, Wageningen, The Netherlands. nina.fatouros@wur.nl" |
| DOI: | 10.1007/s00442-019-04590-y |
| ISSN/ISBN: | 1432-1939 (Electronic) 0029-8549 (Print) 0029-8549 (Linking) |
| Abstract: | "The preference-performance hypothesis (PPH) states that herbivorous female insects prefer to oviposit on those host plants that are best for their offspring. Yet, past attempts to show the adaptiveness of host selection decisions by herbivores often failed. Here, we tested the PPH by including often neglected oviposition-induced plant responses, and how they may affect both egg survival and larval weight. We used seven Brassicaceae species of which most are common hosts of two cabbage white butterfly species, the solitary Pieris rapae and gregarious P. brassicae. Brassicaceous species can respond to Pieris eggs with leaf necrosis, which can lower egg survival. Moreover, plant-mediated responses to eggs can affect larval performance. We show a positive correlation between P. brassicae preference and performance only when including the egg phase: 7-day-old caterpillars gained higher weight on those plant species which had received most eggs. Pieris eggs frequently induced necrosis in the tested plant species. Survival of clustered P. brassicae eggs was unaffected by the necrosis in most tested species and no relationship between P. brassicae egg survival and oviposition preference was found. Pieris rapae preferred to oviposit on plant species most frequently expressing necrosis although egg survival was lower on those plants. In contrast to the lower egg survival on plants expressing necrosis, larval biomass on these plants was higher than on plants without a necrosis. We conclude that egg survival is not a crucial factor for oviposition choices but rather egg-mediated responses affecting larval performance explained the preference-performance relationship of the two butterfly species" |
| Keywords: | Animals *Brassica *Butterflies Female Herbivory Larva Oviposition Egg-killing Hypersensitive response Oviposition-induced Pieridae Priming; |
| Notes: | "MedlineGriese, Eddie Pineda, Ana Pashalidou, Foteini G Iradi, Eleonora Pizarro Hilker, Monika Dicke, Marcel Fatouros, Nina E eng 14854/Stichting voor de Technische Wetenschappen/ 57044990/Deutscher Akademischer Austauschdienst/ CRC 973/Deutsche Forschungsgemeinschaft/ Germany 2020/01/15 Oecologia. 2020 Feb; 192(2):463-475. doi: 10.1007/s00442-019-04590-y. Epub 2020 Jan 13" |
