Activity levels and predator detection by amphipods infected with an acanthocephalan parasite, Pomphorhynchus laevis
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منابع مشابه
Activity levels and predator detection by amphipods infected with an acanthocephalan parasite, Pomphorhynchus laevis.
The acanthocephalan parasite Pomphorhynchus laevis (Müller, 1776) uses freshwater amphipods as its intermediate host. In order to complete the life cycle, the infected amphipod must be consumed by a fish, where the acanthocephalan will mature and reproduce. Parasite transmission, and therefore fitness, could be enhanced if infected amphipods fail to detect or avoid predatory fish. We compared t...
متن کاملThe 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 be able to influence the re-allocation of resources in their own favour. We studied the association between the presence of the acanthocephalan parasite, Pomphorhynchus laevis, and inter-individual var...
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Many trophically-transmitted parasite larvae actively manipulate their intermediate host behaviour in ways increasing its transmission probabilities to the next host in their life cycle. Only stages infective for the next host alter host behaviour in such a way. Before reaching infectivity, parasite larvae grow into several larval stages in the intermediate host, all being non-infective for the...
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Many parasites with complex life cycles increase the chances of reaching a final host by adapting strategies to manipulate their intermediate host's appearance, condition or behaviour. The acanthocephalan parasite Pomphorhynchus laevis uses freshwater amphipods as intermediate hosts before reaching sexual maturity in predatory fish. We performed a series of choice experiments with infected and ...
متن کاملParasite-induced suppression of aggregation under predation risk in a freshwater amphipod: sociality of infected amphipods.
Recent findings suggest that grouping with conspecifics is part of the behavioural defences developed by amphipod crustaceans to face predation risk by fish. Amphipods commonly serve as intermediate hosts for trophically transmitted parasites. These parasites are known for their ability to alter intermediate host phenotype in a way that promotes predation by definitive hosts, where they reprodu...
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ژورنال
عنوان ژورنال: Folia Parasitologica
سال: 2003
ISSN: 0015-5683,1803-6465
DOI: 10.14411/fp.2003.023