Defense against predators incurs high reproductive costs for the aposematic moth Arctia plantaginis
Lindstedt, C., Suisto, K., Burdfield-Steel, E., Winters, A. E., & Mappes, J. (2020). Defense against predators incurs high reproductive costs for the aposematic moth Arctia plantaginis. Behavioral Ecology, 31(3), 844-850. https://doi.org/10.1093/beheco/araa033
Julkaistu sarjassa
Behavioral EcologyTekijät
Päivämäärä
2020Oppiaine
Ekologia ja evoluutiobiologiaEvoluutiotutkimus (huippuyksikkö)Biologisten vuorovaikutusten huippututkimusyksikköEcology and Evolutionary BiologyCentre of Excellence in Evolutionary ResearchCentre of Excellence in Biological Interactions ResearchTekijänoikeudet
© The Author(s) 2020. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology.
To understand how variation in warning displays evolves and is maintained, we need to understand not only how perceivers of these traits select color and toxicity but also the sources of the genetic and phenotypic variation exposed to selection by them. We studied these aspects in the wood tiger moth Arctia plantaginis, which has two locally co-occurring male color morphs in Europe: yellow and white. When threatened, both morphs produce defensive secretions from their abdomen and from thoracic glands. Abdominal fluid has shown to be more important against invertebrate predators than avian predators, and the defensive secretion of the yellow morph is more effective against ants. Here, we focused on the morph-linked reproductive costs of secretion of the abdominal fluid and quantified the proportion of phenotypic and genetic variation in it. We hypothesized that, if yellow males pay higher reproductive costs for their more effective aposematic display, the subsequent higher mating success of white males could offer one explanation for the maintenance of the polymorphism. We first found that the heritable variation in the quantity of abdominal secretion was very low (h2 = 0.006) and the quantity of defensive secretion was not dependent on the male morph. Second, deploying the abdominal defensive secretion decreased the reproductive output of both color morphs equally. This suggests that potential costs of pigment production and chemical defense against invertebrates are not linked in A. plantaginis. Furthermore, our results indicate that environmentally induced variation in chemical defense can alter an individual’s fitness significantly.
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Julkaisija
Oxford University PressISSN Hae Julkaisufoorumista
1045-2249Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/35295668
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen AkatemiaRahoitusohjelmat(t)
Tutkijatohtori, SALisätietoja rahoituksesta
This study was funded by the Academy of Finland via Centre of Excellence in Biological Interactions grant (no 252411) and individual grants (no 136387, 257581) for C.L.Lisenssi
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Genetic colour variation visible for predators and conspecifics is concealed from humans in a polymorphic moth
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Geographic mosaic of selection by avian predators on hindwing warning colour in a polymorphic aposematic moth
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Weak warning signals can persist in the absence of gene flow
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