Parasite-infected sticklebacks increase the risk-taking behaviour of uninfected group members
نویسندگان
چکیده
منابع مشابه
The parasite's long arm: a tapeworm parasite induces behavioural changes in uninfected group members of its social host.
Parasites can induce alterations in host phenotypes in order to enhance their own survival and transmission. Parasites of social insects might not only benefit from altering their individual hosts, but also from inducing changes in uninfected group members. Temnothorax nylanderi ant workers infected with the tapeworm Anomotaenia brevis are known to be chemically distinct from nest-mates and do ...
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Becker, Murphy and Werning (2005) found that individuals about to participate in a status tournament may take fair gambles even though they are risk averse in both wealth and status. Here, this insight is matched with that of Hopkins and Kornienko (2010) that in a tournament or status competition one can consider equality either in terms of initial endowments or in terms of the status or reward...
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The recent increase in the frequency and impact of natural disasters1 highlights the need to provide the public with accurate information concerning disaster prevalence. Most approaches to this problem assume that providing summaries of the nature and scale of disasters will lead people to reduce their exposure to risk2. Herewe present experimental evidence that such ex post ‘news reports’ of d...
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A cross-sectional study with children's and parents' self-completed questionnaires was carried out to evaluate parents' ideas on children's risk-takjng behaviours and children's risky activities after school hours by age (7 and 9 years) and sex. Nine elementary schools were randomly selected and 476 pupHs aged seven and nine years and 471 parents were studied. Most parents (90.1 %) believed tha...
متن کاملThe effect of risk-taking behaviour in epidemic models.
We study an epidemic model that incorporates risk-taking behaviour as a response to a perceived low prevalence of infection that follows from the administration of an effective treatment or vaccine. We assume that knowledge about the number of infected, recovered and vaccinated individuals has an effect in the contact rate between susceptible and infectious individuals. We show that, whenever o...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2018
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2018.0956