Fitness consequences of choosy oviposition for a time-limited butterfly

Ecology
Patricia DoakJoel G Kingsolver

Abstract

For the majority of insects, a female's choice of oviposition site(s) greatly influences both the success of individual offspring and her own total fitness. Theory predicts that females most strongly limited by egg number will employ greater oviposition site discrimination than those predominately subject to time limitation. The reproductive success of the butterfly Pieris virginiensis at our Connecticut, USA, field site is strongly time constrained on two fronts. First, during their three-week flight season, only 60% of days and 28% of daytime hours were suitable for flight. Second, larval survival is impacted by the rapid senescence of their spring ephemeral host plant Dentaria diphylla, with eggs laid during the first half of the flight season having approximately three times the survival chance of those laid later. Yet, on average, females choose to oviposit on only half the plants they closely inspect and fly over most ramets without any inspection. Our experiments demonstrate that the preferred host ramets confer an approximate two-fold survival advantage. Females are not choosing plants that senesce later, despite the advantage that such plants would confer. We use empirical data on female behavior and larval performance...Continue Reading

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Citations

Jul 9, 2008·Oecologia·Christer Wiklund, Magne Friberg
Jul 5, 2011·Integrative and Comparative Biology·Joel G KingsolverJessica K Higgins
Sep 3, 2011·PloS One·Vendula KurdíkováLumír Gvoždík
Sep 17, 2008·The American Naturalist·Jay A RosenheimMicah R Rosenheim
Sep 4, 2014·Environmental Entomology·Jun Tsuji, Lauren Coe
Jul 6, 2010·Ecological Applications : a Publication of the Ecological Society of America·Aaron D Flesch, Robert J Steidl
Jul 31, 2013·Journal of Ethnopharmacology·Sabine Montaut, René S Bleeker
Dec 19, 2014·Journal of the Royal Society, Interface·Greg A BreedAndrew M Edwards
Sep 8, 2016·Frontiers in Plant Science·Michael G CrippsAlfonso Susanna
Jun 6, 2017·Integrative and Comparative Biology·Sarah Jaumann, Emilie C Snell-Rood

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