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Immune Activation Rapidly Mirrored in a Secondary Sexual Trait
A crucial assumption underlying most models of sexual selection is that sexual advertisements honestly reflect the phenotypic and/or genetic quality of their bearers ([1][1]). Here we show thatExpand
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Conflict between co-occurring manipulative parasites? An experimental study of the joint influence of two acanthocephalan parasites on the behaviour of Gammarus pulex.
When two parasite species are manipulators and have different definitive hosts, there is a potential for conflict between them. Selection may then exist for either avoiding hosts infected withExpand
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Altered host behaviour and brain serotonergic activity caused by acanthocephalans: evidence for specificity
Manipulative parasites can alter the phenotype of intermediate hosts in various ways. However, it is unclear whether such changes are just by-products of infection or adaptive and enhanceExpand
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The effect of the acanthocephalan parasite Pomphorhynchus laevis on the lipid and glycogen content of its intermediate host Gammarus pulex.
Besides conspicuous changes in behaviour, manipulative parasites may also induce subtle physiological effects in the host that may also be favourable to the parasite. In particular, parasites may beExpand
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Differential influence of Pomphorhynchus laevis (Acanthocephala) on the behaviour of native and invader gammarid species.
Although various species of acanthocephalan parasites can increase the vulnerability of their amphipod intermediate hosts to predation, particularly by altering their photophobic behaviour, theirExpand
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Increased susceptibility to predation and altered anti-predator behaviour in an acanthocephalan-infected amphipod.
According to the 'parasitic manipulation hypothesis', phenotypic changes induced by parasites in their intermediate hosts are effective means of increasing trophic transmission to final hosts. OneExpand
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Differential influence of two acanthocephalan parasites on the antipredator behaviour of their common intermediate host
Fish acanthocephalans can modify the antipredator behaviour of their intermediate hosts in response to cues from fish predators. However, it is still unclear whether such behavioural changes areExpand
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Bill colour and immunocompetence in the European blackbird
Abstract The level of expression of secondary sexual characters has been suggested to signal male ability to resist parasitic infestations. To test this idea, several studies have examined the linkExpand
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Effects of two acanthocephalan parasites on the fecundity and pairing status of female Gammarus pulex (Crustacea: Amphipoda).
Acanthocephalan parasites are known to alter the reproductive biology and physiology of their hosts in various ways. In this study we investigated the influence of two acanthocephalan parasites,Expand
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Energetically costly precopulatory mate guarding in the amphipod Gammarus pulex: causes and consequences
Abstract Precopulatory mate guarding (PCMG) is thought to have evolved as a male mating strategy in species in which female receptivity is limited to a short time. It is common among crustaceans, andExpand
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