Exposure to parasites increases promiscuity in a freshwater snail
نویسندگان
چکیده
Under the Red Queen hypothesis, outcrossing can produce genetically variable progeny, which may be more resistant, on average, to locally adapted parasites. Mating with multiple partners may enhance this resistance by further increasing the genetic variation among offspring. We exposed Potamopyrgus antipodarum to the eggs of a sterilizing, trematode parasite and tested whether this altered mating behaviour. We found that exposure to parasites increased the number of snail mating pairs and the total number of different mating partners for both males and females. Thus, our results suggest that, in host populations under parasite-mediated selection, exposure to infective propagules increases the rate of mating and the number of mates.
منابع مشابه
بررسی مطالعات حلزونهای آب شیرین ایران و آلودگیهای انگلی آنها با استفاده از مستندات علمی پایگاههای اطلاعاتی: مرور سیستماتیک
Background and Objectives: Freshwater snails play the role of the main intermediate host in the life cycles of trematodes and some nematodes. Therefore, they are of medical and veterinary importance. In Iran, a lot of studies have been conducted on freshwater snails and their parasitic infections. Furthermore, there is no reliable and compiled reference associated with malacology studies. So, i...
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