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- W2912608727 endingPage "20180192" @default.
- W2912608727 startingPage "20180192" @default.
- W2912608727 abstract "The geographical mosaic theory of coevolution predicts that species interactions vary between locales. Depending on who leads the coevolutionary arms race, the effectivity of parasite attack or host defence strategies will explain parasite prevalence. Here, we compare behaviour and brain transcriptomes of Temnothorax longispinosus ant workers when defending their nest against an invading social parasite, the slavemaking ant Temnothorax americanus . A full-factorial design allowed us to test whether behaviour and gene expression are linked to parasite pressure on host populations or to the ecological success of parasite populations. Albeit host defences had been shown before to covary with local parasite pressure, we found parasite success to be much more important. Our chemical and behavioural analyses revealed that parasites from high prevalence sites carry lower concentrations of recognition cues and are less often attacked by hosts. This link was further supported by gene expression analysis. Our study reveals that host–parasite interactions are strongly influenced by social parasite strategies, so that variation in parasite prevalence is determined by parasite traits rather than the efficacy of host defence. Gene functions associated with parasite success indicated strong neuronal responses in hosts, including long-term changes in gene regulation, indicating an enduring impact of parasites on host behaviour. This article is part of the theme issue ‘The coevolutionary biology of brood parasitism: from mechanism to pattern’." @default.
- W2912608727 created "2019-02-21" @default.
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- W2912608727 date "2019-02-11" @default.
- W2912608727 modified "2023-10-13" @default.
- W2912608727 title "Ant behaviour and brain gene expression of defending hosts depend on the ecological success of the intruding social parasite" @default.
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- W2912608727 doi "https://doi.org/10.1098/rstb.2018.0192" @default.
- W2912608727 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6388029" @default.
- W2912608727 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30967075" @default.